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Journal articles on the topic 'Substrate Integrated Waveguide (SIW)'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

Guellil, N., F. Djahli, and C. Zebiri. "A new formula for the optimum width of Substrate Integrated Waveguide." Advanced Electromagnetics 8, no. 4 (2019): 39–43. http://dx.doi.org/10.7716/aem.v8i4.1108.

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A new formula for calculating the optimum width of a Substrate Integrated Waveguide (SIW) corresponding to the first mode is presented in this paper. Finite Difference Frequency Domain (FDFD) method is applied to analyze the waveguide structure where geometrical parameters of the SIW are iteratively varied in order to minimize the gap between cutoff frequencies of SIW structure and that of an equivalent conventional rectangular waveguide. Adequate parameters are used to derive the new formula. To verify the accuracy of the new formula, several waveguides are designed and analyzed using the commercial software HFSS. The calculated propagation constants are compared with experimental measurements from literature, a very good conformity is obtained.

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2

Nasri, Abdelkhalek, Hassen Zairi, and Ali Gharsallah. "Single Balanced Mixer Using Substrate Integrated Waveguide (SIW) 90° Coupler." International Journal of Engineering and Technology 8, no. 1 (2016): 61–64. http://dx.doi.org/10.7763/ijet.2016.v6.859.

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3

Nasri, Abdelkhalek, Hassen Zairi, and Ali Gharsallah. "Single Balanced Mixer Using Substrate Integrated Waveguide (SIW) 90° Coupler." International Journal of Engineering and Technology 8, no. 1 (2016): 61–64. http://dx.doi.org/10.7763/ijet.2016.v8.859.

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4

Shen, W., W. Y. Yin, X. W. Sun, and J. F. Mao. "Compact Coplanar Waveguide-Incorporated Substrate Integrated Waveguide (SIW) Filter." Journal of Electromagnetic Waves and Applications 24, no. 7 (2010): 871–79. http://dx.doi.org/10.1163/156939310791285164.

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5

Amer, Hafssa, and Mahmood A. "Design of Substrate Integrated Waveguide (SIW) Antenna." Communications on Applied Electronics 7, no. 17 (2018): 14–20. http://dx.doi.org/10.5120/cae2018652774.

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6

Khan, Arani Ali, and Mrinal Kanti Mandal. "Miniaturized Substrate Integrated Waveguide (SIW) Power Dividers." IEEE Microwave and Wireless Components Letters 26, no. 11 (2016): 888–90. http://dx.doi.org/10.1109/lmwc.2016.2615005.

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7

Xiaoping Chen, Wei Hong, T. Cui, Jixin Chen, and Ke Wu. "Substrate integrated waveguide (SIW) linear phase filter." IEEE Microwave and Wireless Components Letters 15, no. 11 (2005): 787–89. http://dx.doi.org/10.1109/lmwc.2005.859021.

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8

Khalid, N., S. Z. Ibrahim, and W. F. Hoon. "K-Band Substrate Integrated Waveguide (SIW) Coupler." IOP Conference Series: Materials Science and Engineering 341 (March 2018): 012014. http://dx.doi.org/10.1088/1757-899x/341/1/012014.

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9

Alaydrus, Mudrik. "Studi Transisi Saluran Transmisi Planar – Substrate Integrated Waveguide." Jurnal Telekomunikasi dan Komputer 7, no. 2 (2017): 237. http://dx.doi.org/10.22441/incomtech.v7i2.1170.

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Perkembangan sistim komunikasi wireless mendorong dipergunakannya spectrum frekuensi yang tinggi untuk mendapatkan peluang memberikan sistim dengan kecepatan transfer data yang tinggi. Substrate Integrated Waveguide (SIW) adalah saluran transmisi yang mampu menghantarkan sinyal frekuensi tinggi dengan kerugian yang kecil, tetapi memiliki kemampuan mengintegrasikan banyak komponen. Untuk melewatkan sinyal dari saluran planar ke SIW diperlukan struktur transisi yang memiliki factor refleksi yang kecil. Di penelitian ini pertama-tama dilakukan studi dasar struktur SIW dengan variasi besaran pentingnya, yaitu efek dari diameter silinder metal d dan jarak pitch antar silinder p dan studi terhadap macam-macam jenis dan bentuk transisi yang telah diperkenalkan berbagai publikasi dan dilakukan telaah terhadap realibilitasnya dan kemungkinan pengembangannya.

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10

Kim, Yeonju, Manos Tentzeris, and Sungjoon Lim. "Low-Loss and Light Substrate Integrated Waveguide Using 3D Printed Honeycomb Structure." Materials 12, no. 3 (2019): 402. http://dx.doi.org/10.3390/ma12030402.

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This article proposes a low-loss and light 3D-printed substrate-integrated waveguide (SIW). Despite the use of lossy polylactic acid (PLA) material, insertion loss is reduced, and bandwidth is increased due to a honeycomb substrate similar to air. To demonstrate the proposed concept, we fabricated microstrip-fed SIWs with solid PLA and honeycomb substrates, and compared their performance numerically and experimentally. Average measured insertion loss from 3.4 to 5.5 GHz for the honeycomb SIW is 1.38 dB, whereas SIW with solid PLA is 3.15 dB. Light weight is an additional advantage of the proposed structure.

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11

Hong, Sung-June, Seil Kim, Min-Pyo Lee, Jun-Su Lim, and Dong-Wook Kim. "Ku-Band Transitions between Microstrip and Substrate Integrated Waveguide and Microstrip and Hollow Substrate Integrated Waveguide." Journal of Korean Institute of Electromagnetic Engineering and Science 30, no. 2 (2019): 95–103. http://dx.doi.org/10.5515/kjkiees.2019.30.2.95.

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12

Bayati, Mohammad Sajjad, and Tahsin Khorand. "Compact SIW directional filter using substrate integrated circular cavities." International Journal of Microwave and Wireless Technologies 12, no. 5 (2020): 352–55. http://dx.doi.org/10.1017/s1759078720000100.

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AbstractIn this paper, a novel directional filter (DF) is proposed and implemented using substrate integrated waveguide (SIW) technology which exhibits the advantages of compact size and simple structure. The proposed DF is realized by two half mode substrate integrated waveguides (HMSIWs) and two substrate integrated circular cavity (SICC) resonators operating in the TM110 degenerate modes in which an aperture is utilized to realize the coupling between HMSIWs and SICCs. Two slotlines with appropriate dimensions, etched on the top and bottom planes, are utilized in order to control coupling strength between two cascaded SICC resonators. The proposed two-circular cavity SIW DF at 12.3 GHz is designed and fabricated with a normal printed circuit board process. Measured and simulated results indicate that the DF has a 3.25% bandwidth, and the return loss as well as isolation are better than 10.5 and 15 dB, respectively.

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13

Wang, Yongfei, Dongfang Zhou, Yi Zhang, and Chaowen Chang. "Using Multilayered Substrate Integrated Waveguide to Design Microwave Gain Equalizer." Advances in Materials Science and Engineering 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/109247.

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This paper presents the design and experiment of a novel microwave gain equalizer based on the substrate integrated waveguide (SIW) technique. The proposed equalizer is formed by an SIW loaded by SIW resonators, which has very compact structure and can compensate for gain slope of microwave systems. Equivalent circuit analysis is given about the proposed structure for a better insight into the structure’s response. A Ku-Band equalizer with four SIW resonators is simulated and fabricated with a multilayer printed circuit board process. The measured results show good performance and agreement with the simulated results; an attenuation slope of −4.5 dB over 12.5–13.5 GHz is reached with a size reduction of 76%.

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14

NUSANTARA, HARDI, ARIEF BUDI SANTIKO, and ACHMAD MUNIR. "Filtering Power Divider menggunakan Filter SIW untuk Aplikasi WLAN 5,8 GHz." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 9, no. 3 (2021): 703. http://dx.doi.org/10.26760/elkomika.v9i3.703.

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ABSTRAKDalam makalah ini dikembangkan sebuah pembagi daya yang terintegrasi dengan proses filtering yang dinamakan Filtering Power Divider (FPD) untuk mendapatkan ukuran perangkat yang compact. FPD yang diusulkan terdiri dari 2 buah Band Pass Filter (BPF) yang dirancang berdasarkan teknik Substrate Integrated Waveguide (SIW) untuk beroperasi pada frekuensi Wireless Local Area Network (WLAN) 5,8 GHz. Optimasi dilakukan dengan menggunakan sebuah perangkat lunak simulasi untuk menyelidiki pengaruh parameter filter yang berbeda terhadap proses pemfilteran serta tanggapan keluaran FPD. Substrat dielektrik Duroid 5880 dengan ketebalan 1,575 mm digunakan untuk merealisasi FPD dengan total dimensi 95 mm x 70 mm. FPD yang direalisasi memiliki tanggapan bandwidth sebesar 75 MHz pada rentang frekuensi 5,9 GHz hingga 5,975 GHz dan isolasi antar port keluaran sebesar 20 dB.Kata kunci: Band Pass Filter (BPF), filtering power divider, Substrate Integrated,Waveguide (SIW), Wireless Local Area Network (WLAN).ABSTRACTIn this paper power divider integrated with filtering process, named as Filtering Power Divider (FPD), is developed to achieve a compact size of the device. The proposed FPD is composed of 2 pieces of Band Pass Filter (BPF) designed based on Substrate Integrated Waveguide (SIW) to operate at the Wireless Local Area Network (WLAN) frequency of 5.8 GHz. The optimizations are carried out using a simulation software to investigate the effect of different filter parameters to the filtering process as well as to the output response of FPD. A Duroid 5880 dielectric substrate with the thickness of 1.575 mm is used to realized the FPD with the total dimensions of 95 mm x 70 mm. The realized FPD has a bandwidth response of 75 MHz in the frequency range of 5.9 GHz to 5.975 GHz and isolation between output ports is 20 dB.Keywords: Band Pass Filter (BPF); filtering power divider; Substrate Integrated Waveguide (SIW); Wireless Local Area Network (WLAN).

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15

Frank, Martin, Fabian Lurz, Robert Weigel, and Alexander Koelpin. "Compact low-cost substrate integrated waveguide fed antenna for 122 GHz radar applications." International Journal of Microwave and Wireless Technologies 11, no. 4 (2019): 408–12. http://dx.doi.org/10.1017/s1759078719000072.

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AbstractThis paper describes the design and characterization of a compact substrate integrated waveguide (SIW) fed antenna for the 122 GHz industrial, scientific, and medical band. The use of a single RO4350B substrate layer and the SIW feeding ensure a low-cost fabrication. Two versions of the antenna are presented differing in antenna gain and size. For measurement purpose, a transition from rectangular waveguide to SIW is introduced. Measurements of the radiation pattern have been performed and show good agreement with the numerical results for both antennas and an antenna gain up to 7.14 dBi.

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16

Liu, Bing, Wei Hong, Zhenqi Kuai, et al. "Substrate Integrated Waveguide (SIW) Monopulse Slot Antenna Array." IEEE Transactions on Antennas and Propagation 57, no. 1 (2009): 275–79. http://dx.doi.org/10.1109/tap.2008.2009743.

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17

Xu, Z. Q., Y. Shi, P. Wang, J. X. Liao, and X. B. Wei. "Substrate integrated waveguide (SIW) filter with hexagonal resonator." Journal of Electromagnetic Waves and Applications 26, no. 11-12 (2012): 1521–27. http://dx.doi.org/10.1080/09205071.2012.703951.

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18

Zhang, Zhen-Yu, and Ke Wu. "A Broadband Substrate Integrated Waveguide (SIW) Planar Balun." IEEE Microwave and Wireless Components Letters 17, no. 12 (2007): 843–45. http://dx.doi.org/10.1109/lmwc.2007.910479.

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19

Moro, Riccardo, Sangkil Kim, Maurizio Bozzi, and Manos Tentzeris. "Inkjet-printed paper-based substrate-integrated waveguide (SIW) components and antennas." International Journal of Microwave and Wireless Technologies 5, no. 3 (2013): 197–204. http://dx.doi.org/10.1017/s1759078713000494.

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This paper presents a novel technology for the implementation of substrate-integrated waveguide (SIW) structures, based on a paper substrate and realized by an inkjet-printing fabrication process. The use of paper permits to implement low-cost microwave structures and components, by adopting a completely eco-friendly implementation technology. SIW structures appear particularly suitable for implementation on paper, due to the possibility to easily realize multilayered topologies and conformal geometries. In this paper, SIW passive components, and antennas (including straight interconnects, band-pass filters, and slotted-waveguide antennas) are proposed for the first time. The design of the components, the steps of the fabrication process, and the experimental characterization of the prototypes are reported in this paper.

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20

Dong, Ya Zhou, Shi Wei Dong, Zhong Bo Zhu, and Ying Wang. "Ka Band Transition between Rectangular Waveguide and Substrate Integrated Waveguide." Advanced Materials Research 443-444 (January 2012): 362–65. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.362.

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This paper presents novel designs of Ka band transitions between standard rectangular waveguide and substrate integrated waveguide (SIW). The proposed transitions can provide simultaneous field and impedance matching. The transition with a height-tapered waveguide exhibits outstanding low-loss performance over an ultra-wideband range (entire Ka-band). And the other one with Chebyshev transformers has a compact profile and low loss better than 2dB in a bandwidth of 11GHz at Ka band. The simulation and analysis of the transitions are carried out with Ansoft HFSS.

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21

Siang, Tan Gan, David Paul David Dass, Siti Zuraidah Ibrahim, Mohd Nazri A. Karim, and Aliya A. Dewani. "Design of Ku-band power divider using Substrate Integrated Waveguide technique." Bulletin of Electrical Engineering and Informatics 8, no. 1 (2019): 172–79. http://dx.doi.org/10.11591/eei.v8i1.1410.

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A Ku-band Substrate Integrated Waveguide power divider is proposed. In this work, the SIW power divider is designed with T-junction configuration. The SIW technique enables the power divider to have low insertion loss, low cost and features uniplanar circuit. An additional of metallic via hole is added in the center of the junction to improve the return loss performance of the Tjunction SIW power divider. The simulated input return losses at port 1 are better than 27 dB, and features equal power division of about -3.1 dB ±0.4 dB at both output ports across frequency range of 13.5-18 GHz. The SIW power divider is fabricated, and the measurement results show acceptable performances. Since there are some losses contributed by the SMA connector of the fabricated SIW power divider prototype, an additional SIW transmission line is simulated and fabricated to analyze the connector loss.

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22

Athanasopoulos, Nikolaos, Dimitrios Makris, and Konstantinos Voudouris. "A 60 GHz Planar Diplexer Based on Substrate Integrated Waveguide Technology." Active and Passive Electronic Components 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/948217.

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This paper presents a millimeter-wave, 60 GHz frequency band planar diplexer based on substrate integrated waveguide (SIW) technology. Diplexer consists of a pair of 5th-order SIW bandpass channel filters with center frequencies at 59.8 GHz and 62.2 GHz providing 1.67% and 1.6% relative bandwidths, respectively. SIW-to-microstrip transitions at diplexer ports enable integration in a millimeter-wave transceiver front end. Measurements are in good agreement with electromagnetic simulation, reporting very good channel isolation, small return losses, and moderate insertion losses in the passbands. The proposed SIW planar diplexer is integrated into a millimeter-wave transceiver front end for 60 GHz point-to-point multigigabit wireless backhaul applications, providing high isolation between transmit and receive channels.

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23

Wu, B., Z. Q. Xu, and J. X. Liao. "Substrate Integrated Waveguide Cross-Coupling Filter with Multilayer Hexagonal Cavity." Scientific World Journal 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/682707.

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Hexagonal cavities and their applications to multilayer substrate integrated waveguide (SIW) filters are presented. The hexagonal SIW cavity which can combine flexibility of rectangular one and performance of circular one is convenient for bandpass filter’s design. Three types of experimental configuration with the same central frequency of 10 GHz and bandwidth of 6%, including three-order and four-order cross-coupling topologies, are constructed and fabricated based on low temperature cofired ceramic (LTCC) technology. Both theoretical and experimental results are presented.

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24

Hussein, Yaqdhan Mahmood, Mohamad Kamal A. Rahim, Noor Asniza Murad, et al. "Substrate integrate waveguide and microstrip antennas at 28 GHz." Bulletin of Electrical Engineering and Informatics 9, no. 6 (2020): 2462–68. http://dx.doi.org/10.11591/eei.v9i6.2190.

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In this paper, two antennas are designed using substrate integrated waveguide (SIW) and microstrip technology at 28 GHz. Parametric study for both antennas is presented to demonstrate the performance at millimeter wave frequency for wireless communication network (5G application). Roger RT5880 substrates with permittivity 2.2 and loss tangent 0.0009 are used to implement the antennas with two thicknesses of 0.508 mm and 0.127 mm respectively. Both antennas have the same size of substrate 12x12 mm with a full ground plane was used. Structures designs have been done by using computer simulation technology (CST). The simulation results showed that the antenna with SIW and roger RT 5880 substrate thickness 0.508 has better performance in term of return loss and radiation pattern than the microstrip patch antenna at 28 GHz. A return loss more than -10 dB and the gain are 6.4 dB obtained with wide bandwidth range of (27.4-28.7) GHz. This proving to increase the realized gain by implementing SIW at millimeter wave band for 5G application network.

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25

Khalil, Hisham, M. Mansoor Ahmed, and Umair Rafique. "Nose-Cone Conformal Substrate-Integrated Waveguide Slot Array Antenna for X-Band Radar Applications." International Journal of Antennas and Propagation 2019 (December 23, 2019): 1–11. http://dx.doi.org/10.1155/2019/6262574.

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This paper presents the design of nose-cone conformal substrate-integrated waveguide (SIW) slot array antenna for modern radar applications. Firstly, the wave propagation characteristics have been investigated in doubly curved SIW, and it has been observed that they are non-uniform along the longitudinal direction of nose-cone conformal SIW. To ensure the constant wave propagation along the length of conformal SIW, the conventional design of SIW is reformulated for nose-cone conformal SIW and circuit model modification has been demonstrated. Secondly, the procedure for designing a SIW-based array on curved surfaces has been developed. In the proposed design, rectangular waveguide (RWG) to SIW feeding structure has been used to avoid spurious radiations. Finally, 1 × 6 element-based nose-cone conformal slotted array has been designed and compared with planar and cylindrical conformal arrays. It has been observed from the results that the nose-cone conformal slot array offers low sidelobe levels (SLLs) and high gain. For the validation of the proposed design, the conformal slotted array has been fabricated and measured, which exhibited a reasonable agreement between the measured and the simulated data.

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26

Vincenti Gatti, Roberto, Riccardo Rossi, and Marco Dionigi. "Wideband Rectangular Waveguide to Substrate Integrated Waveguide (SIW) E-Plane T-Junction." Electronics 10, no. 3 (2021): 264. http://dx.doi.org/10.3390/electronics10030264.

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A broadband rectangular waveguide to substrate integrated waveguide power divider for hybrid beam forming networks is presented. Rectangular waveguide symmetric E-plane irises are used to realize a multi-section matching network. A hybrid circuit and full-wave design procedure are described and adopted to synthesize three matching networks with one, two, and three irises, progressively increasing the bandwidth and exceeding the state of the art in the last two cases. Three proof-of-concept prototypes are manufactured and tested to validate the design procedure. Good agreement between simulated and measured performance confirms the validity of the proposed solution.

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27

P. Cowsigan, S., and D. Saraswady. "Structuring, Design and Analysis of a Pentab and SIW Cavity Backed Antenna for Iot Applications." International Journal of Engineering & Technology 7, no. 3.27 (2018): 345. http://dx.doi.org/10.14419/ijet.v7i3.27.17969.

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Substrate Integrated Waveguide (SIW) cavity backed antenna technology is a new form of transmission line facilitating the realization of non-planar (waveguide based) circuits into planar form for easy integration with other planar (Microstrip) circuits and systems. They retain the low copper and dielectric loss property of traditional metallic waveguides and are widely used in integration of walls, floors and flame redundant wearable. SIW-CB antenna is a perfect candidate for IoT based wearable antenna with FR4 substrate. In this sense we structurizean efficient small size antenna for IoT applications to operate in the range of 5 – 15 GHz. FR4-epoxy substrate is chosen so that the losses are minimized hence improving the efficiency. The proposed antenna resonates at 5.4, 6.9,9.1,11.5 & 14.2 GHz hence forming the Pentaband with a maximum return loss of 38.6 db. The other antenna parameter values are Gain 28.5 db, efficiency 90% and VSWR 1.

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28

Prakash, Ved, Sunita Kumawat, and Priti Singh. "Design and Analysis of Full and Half Mode Substrate Integrated Waveguide Planar Leaky Wave Antenna with Continuous Beam Scanning in X-Ku Band." Frequenz 73, no. 5-6 (2019): 171–78. http://dx.doi.org/10.1515/freq-2018-0212.

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AbstractIn this paper, substrate-integrated waveguide (SIW) and half mode substrate integrated waveguide (HM-SIW) periodic leaky wave antennas (LWAs) are presented for the antenna applications. The continuous beam scanning (CBS) is realized by optimizing the unit cell by matching its impedance to the characteristic impedance of the waveguide. This leaky wave antenna is capable of total 60 ° scanning from −38 ° to + 22 ° as the frequency changes from 10.17 GHz to 16.3 GHz with a maximum gain of 11 dBi. Moreover, for further miniaturization, HM-SIW technology is employed in the presented LWA. This LWA is also capable of CBS from −50 ° to + 26 ° in the frequency band of 10 GHz to 16.5 GHz with a maximum gain of 12 dBi. The final prototypes of the both these antenna are fabricated and measured results are in agreement with the simulated ones.

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29

Rhbanou, Ahmed, Seddik Bri, and Mohamed Sabbane. "Analysis of Substrate Integrated Waveguide (SIW) Resonator and Design of Miniaturized SIW Bandpass Filter." International Journal of Electronics and Telecommunications 63, no. 3 (2017): 255–60. http://dx.doi.org/10.1515/eletel-2017-0034.

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Abstract In this paper, the substrate integrated waveguide (SIW) resonator is designed to study the influence of dielectric materials on its operating parameters (insertion loss, fractional bandwidth and unloaded Q-factor). The results obtained show that the use of high permittivity substrate in the SIW resonator by increasing its thickness allows reducing the size of resonator by causing the increase in its unloaded Q-factor. A SIW bandpass filter is designed using low temperature co-fired ceramic (LTCC) technology and high permittivity substrate. The filter has a fractional bandwidth of 27 % centered at 14.32 GHz with insertion loss of 0.7 dB.

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Amer, Hafssa, and Mahmood A. "Design of Hilbert Slot Substrate Integrated Waveguide (SIW) Antenna." International Journal of Computer Applications 179, no. 48 (2018): 26–31. http://dx.doi.org/10.5120/ijca2018917269.

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31

Collado, Ana, Fermin Mira, and Apostolos Georgiadis. "Mechanically Tunable Substrate Integrated Waveguide (SIW) Cavity Based Oscillator." IEEE Microwave and Wireless Components Letters 23, no. 9 (2013): 489–91. http://dx.doi.org/10.1109/lmwc.2013.2274040.

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32

Zhang-Cheng Hao, Wei Hong, Ji-Xin Chen, Xiao-Ping Chen, and Ke Wu. "Compact super-wide bandpass substrate integrated waveguide (SIW) filters." IEEE Transactions on Microwave Theory and Techniques 53, no. 9 (2005): 2968–77. http://dx.doi.org/10.1109/tmtt.2005.854232.

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33

Parameswaran, Ananya, Athira P, and S. Raghavan. "Miniaturized Band Pass Filter in Substrate Integrated WaveguideTechnology." International Journal of Engineering & Technology 7, no. 3.13 (2018): 95. http://dx.doi.org/10.14419/ijet.v7i3.13.16332.

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Miniaturization is an important criteria in the selection of devices for next generation communication systems. A novel miniaturization technique for an inductive post filter is investigated in this paper. Miniaturization is not so popular in inductive post Substrate Integrated Waveguide (SIW) filter and so considerable amount of research is to be done in this domain. A band pass filter in SIW technology using inductive posts is realized and further analyses are carried out. The insertion loss in the pass band is found to be 0.5 dB and the return loss is 22 dB. In this paper, we investigate the use of slow wave technology for miniaturization. Unlike the conventional SIW, the slow wave SIW topology requires a double layer substrate with internal metallized vias introduced in the bottom layer connected to the bottom conductive plane. The number of rows of internal metallized vias was chosen based on a parametric study. The proposed miniaturization technique shows that the SIW filter is 21.6 % and 34.6 % miniaturized in size and area respectively. The response of the filter covers Ka band and hence is suitable for satellite communication application. A quality factor of 506 is achieved for the miniaturized filter.

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34

Huang, Yong Mao, Haiyan Jin, Yuliang Zhou, Supeng Leng, and Maurizio Bozzi. "Wideband isolation-improved substrate-integrated waveguide power dividers/combiners." International Journal of Microwave and Wireless Technologies 10, no. 9 (2018): 1019–27. http://dx.doi.org/10.1017/s1759078718000995.

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AbstractIn this paper, a 3 dB H-plane substrate-integrated waveguide (SIW) power divider/combiner with improved isolation is reported. By adding two isolated ports into the Y-junction, it will perform like a multi-port coupler, so that the isolation between its dividing ports can be effectively improved as the newly-added ports are properly matched. To verify the availability and effectiveness of this concept, two prototypes, one is terminated by coaxial terminations and the other is loaded with lumped resistors, are developed. Their measured results are separately in good agreement with their corresponding simulations. Meanwhile, isolations better than 16 dB with fractional bandwidth (FBW) of 35 and 25% are achieved, respectively, as well as low phase and amplitude imbalances. Compared with some reported similar SIW power dividers, the proposed ones exhibit wider FBW with similar isolation, insertion loss, phase, and amplitude balance performance.

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35

Rhbanou, Ahmed, Fadl El, Nawfal Jebbor, and Seddik Bri. "New design of miniature C-band substrate integrated waveguide bandpass filters using ceramic material." FME Transactions 49, no. 1 (2021): 103–12. http://dx.doi.org/10.5937/fme2101103r.

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This article presents new structures and methods of design of miniature third-order substrate integrated waveguide (SIW) bandpass filters on a high-permittivity ceramic substrate for the C-band. The aim was to appraise the feasibility of such filters by using a 3D electromagnetic (EM) simulator. The substrate integrated waveguide (SIW) offers good quality factors and electrical performances compared with other planar techniques. Its integration capabilities and fabrication cost are other benefits that make it attractive. Ceramic material offer electrical properties suitable in designing of passive devices. High relative permittivity with low dielectric losses makes it possible to miniaturize passive components while exhibiting high temperature stability, which is an important selection criterion for a filter designed to equip the payload of a satellite. Three SIW filters were designed on a Trans-Tech ceramic substrate (thickness = 254 mm, er = 90, and tand = 0.0009) with drastic specifications for space application. The first filter is composed of three SIW resonators with direct coupling, the second is composed of three SIW resonators with a cross-coupling to create a transmission zero, and the third is composed of three SIW resonators with circular holes etched on the top of the metal layer to achieve a super-wide band. The obtained results for the proposed filters are presented, discussed, and compared with relevant published literature. The proposed filter can be used to enhance the performance of microwave devices used for C-band, especially Satellite communications.

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Li, Linfeng, and Jie-Bang Yan. "A Low-Cost and Efficient Microstrip-Fed Air-Substrate-Integrated Waveguide Slot Array." Electronics 10, no. 3 (2021): 338. http://dx.doi.org/10.3390/electronics10030338.

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A microstrip-fed air-substrate-integrated waveguide (ASIW) slot array with high efficiency and low cost is presented. The design cuts out the substrate material within SIW, replaces the vias with metallic sidewalls, and uses a simple microstrip line-waveguide transition to feed the slot array. Radiating slots are cut on a 5-mil brass-plate, which covers the top of the substrate cutout to resemble a hollow waveguide structure. This implementation provides a simple and efficient antenna array solution for millimeter-wave (mm-wave) applications. Meanwhile, the fabrication is compatible with the standard printed circuit board (PCB) manufacturing process. To demonstrate the concept, a 4-element ASIW slot array working at the n257 band for 5G communications was designed using low-cost Rogers 4350B and FR4 substrate materials. Our simulation result shows 18% more efficiency than a conventional SIW slot array using the same substrate. The fabricated prototype shows |S11| < −15 dB over 27–29 GHz and a peak realized gain of 10.1 dBi at 28.6 GHz. The design procedure, prototyping process, and design analysis are discussed in the paper.

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Sellal, Kheireddine, and Larbi Talbi. "Design of a Two-Element Antenna Array Using Substrate Integrated Waveguide Technique." International Journal of Microwave Science and Technology 2011 (September 14, 2011): 1–7. http://dx.doi.org/10.1155/2011/278070.

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The design of a two-element antenna array using the substrate integrated waveguide (SIW) technique and operating at 10 GHz is presented. The proposed antenna array consists of two SIW phase shifter sections with two SIW slot antennas. The phase shifting is achieved by changing the position of two inductive posts inserted inside each element of the array. Numerical simulations and experimental measurements have been carried out for three differential phases between the two antenna array elements, namely, 0°, 22.5°, and 67.5°. A prototype for each differential phase has been fabricated and measured. Results have shown a fairly good agreement between theory and experiments. In fact, a reflection coefficient of better than 20 dB has been achieved around 10 GHZ. The E-plane radiation pattern has shown a beam scan between 5° and 18° and demonstrated the feasibility of designing an SIW antenna phased array.

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Cano, Juan Luis, Angel Mediavilla, and Ana R. Perez. "Full-Band Air-Filled Waveguide-to-Substrate Integrated Waveguide (SIW) Direct Transition." IEEE Microwave and Wireless Components Letters 25, no. 2 (2015): 79–81. http://dx.doi.org/10.1109/lmwc.2014.2372480.

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Liu, Yuanzhi, and Mustapha C. E. Yagoub. "Substrate Integrated Waveguide Filtering Slot Antenna for Ka-Band Satellite Communications." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (April 6, 2021): 63–65. http://dx.doi.org/10.37394/23204.2021.20.8.

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This paper proposes a substrate integrated waveguide (SIW) filtering slot antenna. Based on four SIW cavity resonators and a slot locating on the last resonator, a filtering antenna was designed, targeting the near 20 GHz satellite communication band. Simulated in the Ansys-HFSS commercial software, it exhibits a - 10 dB impedance bandwidth of 1.5 GHz and a flat gain of 5.5 dBi in the operating frequency band. Besides, the filtering antenna has good selectivity at passband edges and features such as compact size, low profile, and low cost, making it suitable for Ka-band satellite ground terminals.

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Song, Kaijun, Mou Luo, Cuilin Zhong, and Yuxuan Chen. "High-isolation diplexer based on dual-mode substrate integrated waveguide resonator." International Journal of Microwave and Wireless Technologies 12, no. 4 (2019): 288–92. http://dx.doi.org/10.1017/s1759078719001387.

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AbstractA high-isolation diplexer based on a dual-mode substrate integrated waveguide (SIW) resonator is proposed in this paper. Based on the theory of the dual-mode resonator, the miniaturized diplexers are designed by using the SIW dual-mode resonators. The superior isolation of the diplexers is obtained because the two operating modes of the dual-mode SIW resonators are not directly coupled and there is no interference with each other. In order to further improve the isolation of the circuit, the number of the order of the diplexer is added. Equivalent circuits are given to analyze and design the dual-mode high-isolation diplexers. Detailed analyses are given according to the equivalent circuits. The dual-mode third-order and fourth-order diplexers are designed and fabricated. The measured results agree well with the simulated ones. The total sizes of the fabricated third-order and fourth-order diplexers are 1.78λg × 2.64λg and 1.79λg × 3.63λg, respectively.

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Salim, Ahmed, Sung-Hwan Kim, Joong Yull Park, and Sungjoon Lim. "Microfluidic Biosensor Based on Microwave Substrate-Integrated Waveguide Cavity Resonator." Journal of Sensors 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/1324145.

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A microfluidic biosensor is proposed using a microwave substrate-integrated waveguide (SIW) cavity resonator. The main objectives of this noninvasive biosensor are to detect and analyze biomaterial using tiny liquid volumes (3 μL). The sensing mechanism of our proposed biosensor relies on the dielectric perturbation phenomenon of biomaterial under test, which causes a change in resonance frequency and return loss (amplitude). First, an SIW cavity is realized on a Rogers RT/Duroid 5870 substrate. Then, a microwell made from polydimethylsiloxane (PDMS) material is loaded on the SIW cavity to observe the perturbation phenomenon. The microwell is filled with phosphate-buffered saline (PBS) solution (reference biological medium). To demonstrate the sensing behavior, the fibroblast (FB) cells from the lungs of a human male subject are analyzed and one-port S-parameters are measured. The resonance frequency of the structure with FB cells is observed to be 13.48 GHz. The reproducibility and repeatability of our proposed biosensor are successfully demonstrated through full-wave simulations and measurements. The resonance frequency of the FB-loaded microwell showed a shift of 170 MHz and 20 MHz, when compared to those of empty and PBS-loaded microwells. Its analytical limit of detection is 213 cells/μL. Our proposed biosensor is noncontact and reliable. Furthermore, it is miniaturized, inexpensive, and fabricated using simple- and easy-design processes.

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Guvenli, Kemal, Sibel Yenikaya, and Mustafa Secmen. "Analysis, Design, and Actual Fabrication of a Hybrid Microstrip-SIW Bandpass Filter Based on Cascaded Hardware Integration at X-Band." Elektronika ir Elektrotechnika 27, no. 1 (2021): 23–28. http://dx.doi.org/10.5755/j02.eie.27479.

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In this paper, the Microstrip-Substrate Integrated Waveguide (M-SIW) bandpass filter is designed, simulated, and fabricated based on the theoretical analysis. The Substrate Integrated Waveguide (SIW) highpass filter and the microstrip lowpass filter are combined in a hybrid design to achieve the M-SIW bandpass filter in the X-band. This design is more comprehensible and easier to achieve a bandpass filter at a desired frequency. The SIW highpass filter and the microstrip lowpass filter are connected in series to achieve the bandpass filter. To the measured results of the fabricated M-SIW bandpass filter, the center frequency is 10.20 GHz and the bandwidth is 2.40 GHz. When the analytical and measurement results are compared, the frequency change in the cut-off frequency is 6.02 % and the frequency change in the bandwidth is 8.74 %. It is generally seen that analytical, simulation, and measurement results are compatible with each other. The M-SIW bandpass filter can be broadly used in radar, Worldwide Interoperability for Microwave Access (WiMAX), and satellite technologies. The filters are simulated in Computer Simulation Technology (CST) Studio Suite.

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AL-Fadhali, Najib, Huda A. Majid, Rosli Omar, et al. "Wideband millimeter-wave substrate integrated waveguide cavity-backed antenna for satellites communications." Bulletin of Electrical Engineering and Informatics 9, no. 5 (2020): 1933–40. http://dx.doi.org/10.11591/eei.v9i5.2238.

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This paper presents a new type of wideband waveguide (SIW) cavity-backed patch antenna for millimeter wave (mmW). The antenna proposed applies to applications of 31-36 GHz Ka-band such as satellites communications. The SIW is intended with settings for particular slots. The antenna is constructed on Rogers RT5880 (lossy) with 2.2 dielectric constant, l.27 mm thickness, and 0.0009 loss tangent. It is simulated in the programming of computer simulation technology (CST) Microwave Studio. The simulated results show that the SIW antenna resonates across 31 to 36 GHz bands, which means that this new antenna covers all applications within this range. The reflection coefficients in targeting range are below 10 dB. The antenna achieves good efficiency and gain with 80% and 8.87 dBi respectively.

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Zhou, Yi Hong, Hai Yang Wang, and Jia Yin Li. "A Novel Wideband Transition between Waveguide and SIW." Advanced Materials Research 760-762 (September 2013): 174–77. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.174.

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Based on a linearly tapered antipodal finline, a novel low-loss wideband transition between waveguide and substrate integrated waveguide (SIW) is discussed. Results show that a low insertion loss (1.2-2.1dB) and a return loss better than 15dB across the entire Ka-band are obtained for a back-to-back transition structure.

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Gatti, Roberto Vincenti, Riccardo Rossi, and Marco Dionigi. "Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network." Applied Sciences 9, no. 3 (2019): 389. http://dx.doi.org/10.3390/app9030389.

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A broadband right-angle rectangular waveguide to substrate integrated waveguide transition for hybrid RWG-SIW (rectangular waveguide–substrate integrated waveguide) feeding networks is presented. The narrower return loss bandwidth issue with respect to in-line configurations is addressed with the introduction of a multi-section matching network consisting of a number of symmetric E-plane irises in the rectangular waveguide section. A hybrid design procedure based on circuit simulation and full-wave optimization is outlined and adopted to synthesize three matching networks with respectively one, two, and three irises, according to the bandwidth to be covered. The design procedure is experimentally validated with a proof-of-concept prototype.

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Nwajana, Augustine O., Amadu Dainkeh, and Kenneth S. K. Yeo. "Substrate Integrated Waveguide (SIW) Bandpass Filter with Novel Microstrip-CPW-SIW Input Coupling." Journal of Microwaves, Optoelectronics and Electromagnetic Applications 16, no. 2 (2017): 393–402. http://dx.doi.org/10.1590/2179-10742017v16i2793.

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Punati, Mounika, and R. Yuvaraj. "Substrate integrated circuits for high frequency of opto electronics." International Journal of Reconfigurable and Embedded Systems (IJRES) 9, no. 3 (2020): 224. http://dx.doi.org/10.11591/ijres.v9.i3.pp224-228.

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Another age of high-recurrence coordinated circuits is displayed, which is called substrate incorporated circuits (SICS). Current cutting edge of circuit plan and implementation stages dependent on this new idea are assessed and dis-cussed in delail. Various potential outcomes and various favorable circumstances of the SICS are appeared for microwave, millimeter-wave and opto hardware applications. Down to earth models are delineated with hypothetical and trial results for substrate coordinated waveguide (SIW), substrate incorporated chunk waveguide (SISW) and substrate incorporated non-transmitting dielectric (SI") direct circuits. Future innovative work patterns are likewise dis-cussed regarding ease imaginative plan of millimeter-wave and optoelectronic coordinated circuits.

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Wang, Jun, and Yu Jian Cheng. "W-Band Hybrid Unequal Feeding Network of Waveguide and Substrate Integrated Waveguide for High Efficiency and Low Sidelobe Level Slot Array Antenna Application." International Journal of Antennas and Propagation 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/7183434.

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A W-band hybrid unequal feeding network of waveguide and substrate integrated waveguide (SIW) is presented in this paper. It comprises a two-way hybrid waveguide-SIW E-plane divider and an unequal SIW dividing network. Firstly, the two-way hybrid divider is developed to realize the waveguide-to-SIW vertical transition and power division at the same time. Besides, it has a wider bandwidth and more compact configuration compared with those of conventional structures including a transition and a cascading divider. Secondly, an SIW 1-to-16-way unequal dividing network is developed with the phase self-compensation ability. This W-band dividing network is able to generate the desired amplitude and phase distribution. Finally, two back-to-back SIW 16 × 16 antenna arrays are grouped and fed by the proposed feeding network. The low sidelobe levels (SLLs) can be achieved at E- and H-plane of the antenna. The total aperture size of the antenna is 15% less than that of a conventional antenna with a separated divider and a transition. With such a multifunctional feeding network, the antenna is able to achieve low loss and high efficiency as well.

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Zhang, Xiao Hong, Guo Qing Luo, and Lin Xi Dong. "Substrate Integrated Waveguide Fed Cavity Backed Slot Antenna for Circularly Polarized Application." International Journal of Antennas and Propagation 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/316208.

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A novel planar low-profile cavity-backed slot antenna for circularly polarized applications is presented in this paper. The low-profile substrate integrated waveguide (SIW) cavity is constructed on a single PCB substrate with two metal layers on the top and the bottom surfaces and metallized via array through the substrate. The SIW cavity is fed by a SIW transmission line. The two orthogonal degenerate cavities resonanceTM110mode are successfully stimulated and separated. The circularly polarized radiation has been generated from the crossed-slot structure whose two arms’ lengths have slight difference Its gain is higher than 5.4 dBi, the peak cross-polarization level is lower than −22 dB, and the maximum axial ratio (AR) is about −1.5 dB. Compared with the previous presented low-profile cavity-backed slot antenna work, the spurious radiation from the proposed antenna’s feeding element is very low and it has less interference on the following circuits.

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Wang, Ning, Xiao-Chun Li, and Jun-Fa Mao. "High-Speed Interconnect System Using QPSK Scheme Based on Substrate Integrated Waveguide." Journal of Circuits, Systems and Computers 27, no. 01 (2017): 1850014. http://dx.doi.org/10.1142/s0218126618500147.

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In this paper, Quadrature Phase Shift Keying (QPSK) modulation and demodulation system based on a Substrate Integrated Waveguide (SIW) is designed and implemented for high-speed data transmission. The technique of orthogonal multiplexing allows two independent channels to transmit data simultaneously through one waveguide structure. For this proof-of-principle study, a fabricated SIW prototype with bandwidth of 14–28 GHz is designed and optimized through full-wave simulations. The QPSK system prototype is verified with different data rates and bit patterns. Experimental results demonstrate that the bit error rates (BERs) of the received data in channel I/Q are less than 10–12 and the transmission rate can reach up to 15 Gb/s for 27-1 Pseudo Random Binary Sequence (PRBS). The transmission data rate of the proposed QPSK system is two times higher than that of the conventional mixing system.

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