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Journal articles on the topic 'Microstrip Bandpass Filter'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

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 bandp

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2

Wang, Hao Ru, Kai Yang, Xiang Rang Ren, and Yi Meng Liu. "Design of Miniaturization Microstrip Filter in L-Band." Advanced Materials Research 816-817 (September 2013): 1037–40. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.1037.

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A curve of the relationship between the gaps of microstrip resonator and coupling coefficients is presented in this paper, which based on the study of small planar microstrip bandpass filter design theory and implementation. According to the curve, a small microstrip bandpass filter with 6.67% relative bandwidth in L-band is designed by Multi-zigzag line and capacitive loading technology. Compared to the similar hairpin line filters, the area of the filter designed in this paper is reduced by 64% with advantage of smaller size and more simple structure. The examples and results of a fifth-orde

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3

Farida, Fitri, and Eko Setijadi. "Perancangan Filter Bandpass dengan Teknik Penggabungan Filter Lowpass dan Highpass." Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan 7, no. 1 (2018): 32–38. http://dx.doi.org/10.31629/sustainable.v7i1.436.

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UWB technology started to become an attraction in the field of research since the Federal Communications Commission (FCC) allowing this communication is used for commercial communications at a frequency (3.1 GHz - 10.6 GHz). UWB has a very wide frequency range so that in practice there is often interference due to signal interference. Therefore in UWB system filter design is required to maintain UWB device. In telecommunications, filter is a transmission device that has the function to pass the desired frequency. In this paper designed bandpass filter which is applied for UWB technology. The d

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4

Mezaal, Y. S., H. H. Saleh, and H. Al-saedi. "New Compact Microstrip Filters Based on Quasi Fractal Resonator." Advanced Electromagnetics 7, no. 4 (2018): 93–102. http://dx.doi.org/10.7716/aem.v7i4.883.

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This paper presents new microstrip devices as single band bandpass and multi band bandstop filters. The proposed filters use slotted patch microstrip resonator based on quasi fractal geometry, simulated by AWR12 software package. Both filters have quasi elliptic frequency response, designed at centre frequency of 2.437 GHz for bandpass filter and at band frequencies of 2.434, 4.032, 4.976 and 5.638 GHz GHz respectively, for multi bandstop filter. All filters are employed using RT/Duroid 6010.8 LM substrate of dielectric constant and 1.27 mm dielectric thickness. Simulation results show that th

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Wang, Gang, Li Xin Xu, and Ting Wang. "Threshold Values Analysis of Substrate Parameters Based on MEMS Microstrip Filter." Key Engineering Materials 483 (June 2011): 745–49. http://dx.doi.org/10.4028/www.scientific.net/kem.483.745.

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High frequency filters are important components in microwave facilities application. With miniature volume, high performance and integratability, MEMS microstrip filter can significantly improve performance of Radio frequency system. By calculating chebyshev coupled microstrip bandpass filter design scheme, Threshold values of MEMS microstrip substrate parameters are defined to analyze dimensions variation property of MEMS microstrip filter relates with substrate parameters. Selection principle of substrate parameters for MEMS microstrip filter is presented, which indicates thickness and relat

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Ragani, Taoufik, N. Amar Touhami, and M. Agoutane. "Designing a Microstrip coupled line bandpass filter." International Journal of Engineering & Technology 2, no. 4 (2013): 266. http://dx.doi.org/10.14419/ijet.v2i4.1173.

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Bandpass filters play a significant role in wireless communication systems. Transmitted and received signals have to be filtered at a certain center frequency with a specific bandwidth, in this paper, a coupled-line bandpass Filter at the center frequency 6 GHz with the wide bandwidth of 2 GHz. this type of filter can be used in WLAN and other applications for the frequency range of 5-7 GHz.

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7

Gopalakrishnan, Ramakrishnan, Sivakumar Rajagopal, Sai Viswanth Reddy, and Anirudh E. R. "Identification of Most Suitable Dielectrics Substrate for UWB Bandpass Filter." ECS Transactions 107, no. 1 (2022): 431–38. http://dx.doi.org/10.1149/10701.0431ecst.

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Identification of a suitable substrate is a critical parameter in the design of microstrip bandpass filters. In this work, the performance of an Ultra Wideband (UWB) bandpass filter based on Electromagnetic Bandgap (EBG) resonators are designed, fabricated, and analyzed. Printed Circuit Board (PCB) with suitable dielectric substrates are used extensively to develop microstrip lines. The filter is fabricated using RT Duroid substrate material and compared with FR4 and Alumina dielectric substrates and the performance results show that the best result is obtained with RT Duroid.

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8

Chang, Wei-Chung, and Wen-Hua Tu. "Dual-band bandpass filter for software defined radio and 5G." International Journal of Microwave and Wireless Technologies 12, no. 7 (2020): 629–34. http://dx.doi.org/10.1017/s175907872000080x.

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AbstractThis paper presents the filter design in the student design competition of EuMW 2019. This contest motivates students for the design and implementation of a dual-band bandpass filter able to get outstanding performance, where different implementation technologies, such as microstrip, coplanar, multilayer microstrip, substrate integrated waveguide, and some others can be effectively employed. Filters are evaluated by considering a figure of merit (FoM) defined by the insertion loss level, selectivity, spurious-free response, and size. To this end, three viable dual-band bandpass filters

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9

Hidayat, M. Reza, and Difa Dwi Juliantara Sukmawan. "Analisa Elemen Multiarms Resonator Open Loop Pada Band-Pass Filter Mikrostrip Yang Bekerja Di Frekuensi EHF." Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan 8, no. 2 (2021): 93–104. http://dx.doi.org/10.34010/telekontran.v8i2.3597.

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The use of bandpass filters is commonly used but the use of specifications varies depending on needs, in this case the microstrip bandpass filter is expected to observe the multiarms characteristics of the open loop resonator on the performance of the bandpass filter for EHF frequencies. The design of this microstrip bandpass filter uses a multiarms open loop resonator design where at the beginning of the simulation stage uses only 1 arm with patch width, arm spacing, feeder line width and patch length based on trial and error. The final simulation results are obtained with a connector distanc

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10

Chen, Chia-Mao, Shoou-Jinn Chang, Sung-Mao Wu, Yuan-Tai Hsieh, and Cheng-Fu Yang. "Investigation of Compact Balun-Bandpass Filter Using Folded Open-Loop Ring Resonators and Microstrip Lines." Mathematical Problems in Engineering 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/679538.

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A balun-bandpass filter was proposed by using two folded open-loop ring resonators (OLRRs) to couple three microstrip lines. By tuning the size of the OLRR, the operating frequency of the balun-bandpass filter could be tuned to the needed value. By tuning the size of open stub at the end of microstrip lines, the balanced impedance of the balun-bandpass filter could also be tuned. The fabricated balun-bandpass filter had a wide bandwidth and a low insertion loss at center frequency of the passband. The balun-bandpass filter presented an excellent in-band balanced performance with common-mode re

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11

Zhao, Shuang, and Dian Ren Chen. "Design of the Parallel Coupled Microstrip Bandpass Filter." Advanced Materials Research 1046 (October 2014): 297–300. http://dx.doi.org/10.4028/www.scientific.net/amr.1046.297.

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A design method of microstrip filter with good isolation is presented. In the paper, the design method of microstrip bandpass filter is introduced, and one example filter with 3.075GHz center frequency, 9% relative bandwidth is given. With the aid of microwave HFSS software, the microstrip filter is simulated. The result of simulation shows the microstrip filter has an excellent frequency response.

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12

George, Anitha, Anju Iqubal, and Abdulla P. "A REVIEW OF THE DESIGN AND DEVELOPMENT OF MICROSTRIP MULTIBAND BANDPASS FILTER FOR 5G SYSTEMS." Journal of Applied Science, Engineering, Technology and Management 2, no. 2 (2024): 03–08. https://doi.org/10.61779/jasetm.v2i2.1.

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Microstrip bandpass filters have been the subject of research for a very long period to suit the needs of contemporary multiservice wireless communication systems. Multiband bandpass filters, or BPFs, are necessary for the receiver front end to work as a single unit that can serve many bands simultaneously. Particularly promising are the compact design, low integration cost, and simplicity of manufacture using printed circuit technology of planar bandpass filters. The design and implementation of filters for fifth-generation (5G) mobile communication systems is complicated due to the necessity

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13

Nwajana, Augustine O. "A Step-by-Step Approach to Bandpass/Channel Filter Design." International Journal of Electronics, Communications, and Measurement Engineering 10, no. 2 (2021): 1–14. http://dx.doi.org/10.4018/ijecme.2021070101.

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This paper presents a step-by-step approach to the design of bandpass/channel filters. The chapter serves as a reference source to microwave stakeholders with little or no filter design experience. It should help them design and implement their first filter device using the microstrip technology. A 3-pole Chebyshev bandpass filter (BPF) with centre frequency of 2.6 GHz, fractional bandwidth of 3%, passband ripple of 0.04321 dB, and return loss of 20 dB has been designed, implemented, and simulated. The designed filter implementation is based on the Rogers RT/Duroid 6010LM substrate with a 10.7

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14

Alqaisy, Mushtaq, Chandan K. Chakrabraty, Jawad K. Ali, Adam Reda Alhawari, and Tale Saeidi. "Switchable square ring bandpass to bandstop filter for ultra-wideband applications." International Journal of Microwave and Wireless Technologies 9, no. 1 (2015): 51–60. http://dx.doi.org/10.1017/s1759078715001373.

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In this manuscript, serial-shunt of square ring resonators with step-impedance open circuited stub resonators to produce a new on-off switchable bandpass to bandstop response in the same ultra-wideband microstrip filter structure is proposed. The closed ring of series-shunt square ring resonators with a combine stubs are introduced to excite the bandpass response while bandstop characteristic excited when gaps are embedded in the corners of the square ring resonators. The main advantage of this microstrip filter is its capability to switch from bandpass-to-bandstop operation using open-short g

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15

Li, Yang. "Narrowband Bandpass Microstrip Filter Design." Advanced Materials Research 945-949 (June 2014): 2338–41. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.2338.

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This paper analyzes the basic theory of the microstrip narrow-band filter design and accomplishes the design of narrow band-pass filter whose center frequency is on L-band with the help of the Agilent ADS simulation software. The filter adopts Chebyshev’s prototype structure and consists of coupled microstrip line. Its fluctuation is less than 0.5dB and attenuation is less than 1.5dB between 1.9GHZ and 2.1GHZ .Its port Reflection coefficient less than-15dB and attenuation is greater than 20dB at 1.72GHZ and 2.3GHZ. Layout simulation meets the requirement of filter design.

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16

Et.al, Kavitha Devi CS. "A Compact Bandpass Microstrip Filter for Wireless Communication Applications." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 6 (2021): 161–65. http://dx.doi.org/10.17762/turcomat.v12i6.1281.

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A design of Compact Bandpass Microstrip Filter is proposed for wireless communication applications like Bluetooth, Wi-Fi, and 5G. Filter is constructed using parallel-coupled Microstrip lines to form 5th order filter of an inverted C structure. Ground slotted technique is used to enhance the bandwidth with dielectric constant of 9.9. The designed filter is simulated at a center frequency of 5.87GHz and bandwidth of 1.9GHz with an insertion loss of -0.5dB, return loss of greater than 12dB. The proposed filter has a compact size, good increased bandwidth and cost-effective. These results are ver

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17

Jianxin, Chen, Yu Mengxia, Xu Jun, and Xue Quan. "A novel microstrip bandpass filter." Microwave and Optical Technology Letters 41, no. 6 (2004): 505–6. http://dx.doi.org/10.1002/mop.20185.

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18

Fomin, Dmitriy G., Stanislav N. Darovskikh, Nikolay V. Dudarev, Igor I. Prokopov, and Svyatoslav V. Dudarev. "Simulation of band pass filters based on multilayer technology." Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics 22, no. 1 (2022): 77–87. http://dx.doi.org/10.14529/ctcr220106.

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One of the integral parts of modern radio transmitting devices are bandpass filters that limit the out-of-band spectrum of electromagnetic radiation and the side effect of electromagnetic radiation, which is important in the framework of the dense distribution of the radio frequency band between radio services. Similar functions of bandpass filters are made as part of radio receivers and placed at the input. At the same time, they also perform the functions of a matching device between the radio receiving connection and the antenna-feeder path. Currently, there are known methods for the develo

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19

Melhem, Zeina, Chadi Nader, B. Bayard, J. Bechara, and Jean Jacques Rousseau. "Microstrip Bandpass Sensor Based on Distributed Capacitors." Advanced Materials Research 324 (August 2011): 445–48. http://dx.doi.org/10.4028/www.scientific.net/amr.324.445.

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A microstrip bandpass filter with rectangular patch coupled resonator is presented. The filter is designed to be more affected by the dielectric layer above the conductors compared to the same type of parallel-coupled bandpass filter. The filter is designed to operate between 1 GHz to 3 GHz and this can be a sensor base on distributed capacitors. The agreement between the circuit simulator and measured results is excellent and gives a very good prediction for the filter characteristics. The aim of this prototype filter is to show insertion loss (IL) at the bandpass transmission response when a

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20

Khan, Zuhani Ismail, Nur Emileen Abd Rashid, Khairul KhaiziMohd Shariff, Nor Ayu Zalina Zakaria, and S. A. Enche Ab Rahim. "Dual-Path Coupled-Line Dual-Band Bandpass Filter with Synthesis." International Journal of Emerging Technology and Advanced Engineering 12, no. 11 (2022): 116–22. http://dx.doi.org/10.46338/ijetae1122_13.

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A dual-band bandpass filter topology based on the use of dual-path coupled lines is presented. It exhibits a 2nd order dual-band response with three transmission zeros that gives a wide separation of the passbands, and from the rejection bands. A simplified circuit diagram of the topology is proposed along with a global synthesis that can be used to control the transmission zeros, the center frequency, and the bandwidth of the passbands, by varying the length and impedance of the filter elements. The filter topology was implemented in the design of two dual-band microstrip filters on TRF45 sub

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21

Razinkin, V. P., K. Ya Aubakirov, and T. G. Serikov. "QUASI-ELLIPTIC MICROSTRIP FILTER." Issues of radio electronics, no. 4 (May 10, 2019): 75–80. http://dx.doi.org/10.21778/2218-5453-2019-4-75-80.

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Currently, modern telecommunication and radio-electronic systems widely use wireless information transmission technologies over the radio channel. Therefore, an urgent task is to ensure electromagnetic compatibility of a large number of simultaneously operating radio facilities using high-selective bandpass filters. This paper presents circuit solutions for microstrip filters using incomplete inclusion of loads and communication elements. This construction makes it possible to obtain additional attenuation poles in the near zone of the stop band, which frequencies are determined by the load in

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Беляев, Б. А., С. А. Ходенков, И. В. Говорун та А. М. Сержантов. "Микрополосковые фильтры с широкими полосами пропускания". Письма в журнал технической физики 47, № 7 (2021): 30. http://dx.doi.org/10.21883/pjtf.2021.07.50796.18581.

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New microstrip designs of bandpass filters based on a low-pass filter was developed. Several or all the sections of high-impedance microstrip lines of the designed filters were connected to the ground by stubs. The filters have high frequency-selective properties, and their fractional bandwidths are in the range of 30 % –150 %. An experimental sample of a filter with a 2 GHz central frequency of the passband and 70% fractional bandwidth was made on an alumina substrate 1 mm thick. The filter has a substrate area of 46 × 21 mm2. Good agreement of the measured frequency response of the filter wi

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23

Li, Wei Ping, Hui Luo, and Xui Hui Guan. "The Modeling and Simulation of Mirostrip Bandpass Filter Using ADS." Advanced Materials Research 421 (December 2011): 192–95. http://dx.doi.org/10.4028/www.scientific.net/amr.421.192.

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Microstrip filter is used widely in wireless communication area, especially in WLAN. Compared to the conventional manufacturing techniques using lumped element, we can get extremely better characters in high frequency wave band using microstrip lines. ADS2008 (Agilent Advanced Design System 2008) is an excellent software platform for high frequency and high speed EDA manufacturing. In this letter, the modeling of microstrip filter which works at appointed frequency is got by transforming the lumped elements to microstrip elements. Finally, the microstrip filter simulated, optimized by ADS2008.

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Kaddour, Darine, Jean-Daniel Arnould, and Philippe Ferrari. "A semi-lumped microstrip UWB bandpass filter." International Journal of Microwave and Wireless Technologies 1, no. 1 (2009): 57–64. http://dx.doi.org/10.1017/s1759078709000117.

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In this paper, a miniaturized bandpass filter for ultra-wide-band applications is proposed. It is based on the embedding of high-pass structures in a low-pass filter. A semi-lumped technology combining surface-mounted capacitors and transmission lines has been used. The filter design rules have been carried out. Furthermore, two filters having a 3-dB fractional bandwidth of 142 and 150%, centered at 0.77 and 1 GHz, respectively, have been realized for a proof of concept. Measured characteristics, in good agreement with simulations, show attractive properties of return loss (|S11| <−18 dB),

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La, Dong-Sheng, Xin Guan, Shuai-Ming Chen, Yu-Ying Li, and Jing-Wei Guo. "Wideband Band-Pass Filter Design Using Coupled Line Cross-Shaped Resonator." Electronics 9, no. 12 (2020): 2173. http://dx.doi.org/10.3390/electronics9122173.

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In this paper, a wideband bandpass filter with a coupled line cross-shaped resonator (CLCSR) is proposed. The proposed bandpass filter is composed of two open-end parallel coupled lines, one short-end parallel coupled line, one branch microstrip line, and the parallel coupled line feed structure. With the use of the even and odd mode approach, the transmission zeros and transmission poles of the proposed bandpass filter are analyzed. The coupling coefficient of the parallel coupled line feed structure is big, so the distance between the parallel coupled line is too small to be processed. A thr

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Kumar, A., R. Patel, and M. V. Kartikeyan. "Investigation on Microstrip Filters with CSRR Defected Ground Structure." Advanced Electromagnetics 5, no. 2 (2016): 28. http://dx.doi.org/10.7716/aem.v5i2.353.

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This paper consists the design studies of complementary split ring resonator (CSRR) defected ground structure (DGS) microstrip filter with low insertion loss in the passband and high rejection in stopband with a comparison of various CSRR-DGS structure has been proposed. Various parameters of microstrip filters have been studied with CSRR-DGS such as roll off rate, bandwidth, effective inductance and capacitance. On the basis of these studies, microstrip low-pass, bandpass and dual-band bandstop filters have been designed and realized with enhanced properties of filters.

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Moradi, Bahareh, Raul Fernández-García, and Ignacio Gil. "Meander Microwave Bandpass Filter on a Flexible Textile Substrate." Electronics 8, no. 1 (2018): 11. http://dx.doi.org/10.3390/electronics8010011.

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This paper presents an alternative process to fabricate flexible bandpass filters by using an embroidered yarn conductor on an electronic textile. The novelty of the proposed miniaturized filter is its complete integration on the outfit, with benefits in terms of compressibility, stretchability, and high geometrical accuracy opening the way to develop textile filters for wearable applications in sport and medicine. The proposed design consists of a fully embroidered microstrip topology with a length equal to quarter wavelength (λ/4) to develop a bandpass filter frequency response. A drastic re

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Nurjihan, Shita Fitria, and Yenniwarti Rafsyam. "Ultra-Wideband Microstrip Bandpass Filter and Its Equivalent Circuit." IJITEE (International Journal of Information Technology and Electrical Engineering) 5, no. 2 (2021): 52. http://dx.doi.org/10.22146/ijitee.65695.

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Microstrip filters can be designed with various methods to obtain good performances, such as defected ground structure, open-ended slot, planar edge coupled, and split ring resonator with groundplane windowing. In this paper, the design of an ultra-wideband microstrip bandpass filter used the defected ground structure (DGS) method by adding a circular slot to the groundplane. The addition of the circular slot was carried out to improve the value of S parameter (return loss and insertion loss) from the initial filter design without a circular slot. In the simulation process, optimization was ca

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Semernya, Roman E., Sergey L. Chernyshev, Artem R. Vilenskiy, and Eduard O. Mozharov. "DESIGN OF COMPACT BANDPASS QUASI-ELLIPTIC MICROSTRIP FILTERS." Journal of the Russian Universities. Radioelectronics, no. 6 (January 18, 2019): 41–53. http://dx.doi.org/10.32603/1993-8985-2018-21-6-41-53.

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This paper considers an algorithm for development of the sixth order compact microstrip bandpass filters with quasi-elliptic characteristics. The proposed technique is applied for synthesis of two filters for the L- and X-band. The recursive computational approach is employed to obtain the coupling matrix with simple topological implementation. Next, the full-wave transmission line analysis based on spectral-domain method of moments is applied for calculation of coupled microstrip resonator eigen frequencies. This approach is then used to compute magnitude and sign of the coupling coefficient

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Sasic, Mubina, and Sehabbedin Taha Imeci. "Design of microstrip coupled-line bandpass filter." Heritage and Sustainable Development 3, no. 1 (2021): 44–52. http://dx.doi.org/10.37868/hsd.v3i1.55.

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This project contains basic information, design, 3D projection, simulation, and analysis of Microstrip Bandpass Filter. The filter was composed of the feed lines connected to the two ports with the parallel coupled lines between them. The separation between these elements is reduced to the minimum for the purpose of reducing the error. Ultimately, the microstrip bandpass filter was designed with a 400 MHz bandwidth. We end up with these result: at the 4.43 GHz, S11 parameter is -9.868 dB and S22 is -1.808 dB, while at the 4.83 GHz, S11 is -9.995 dB and S22 is -1.826 dB.

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Mohd, Nasiruddin Hushim, Ab Wahab Norfishah, Syarifah Atifah Tn. Mat Zin Tn., and Ghazali Norlia. "Inter-connected coupled lines resonator topology for bandpass filter application." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 3 (2020): 2523–34. https://doi.org/10.11591/ijece.v10i3.pp2523-2534.

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This paper presents an inter-connected side-shorted coupled-line resonator topology as a base cell. The base cell is built from two single-shorted quarter-wavelength coupled-line sections, connected in series to give a half-wavelength coupled-line that creates a single resonance of bandpass filter response. Higher-order bandpass filter is produced by adding new single-shorted coupled-line sections, cascaded in an inter-connected manner to the base cell. This new topology creates a unique arrangement that caused cross coupling effects between the resonators, resulting to the occurrence of trans

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Chen, Chia-Mao, Shoou-Jinn Chang, Yen-Liang Pan, Cheng-Yi Chen, and Cheng-Fu Yang. "Fabrication of Compact Microstrip Line-Based Balun-Bandpass Filter with High Common-Mode Suppression." Mathematical Problems in Engineering 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/985064.

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A new type of balun-bandpass filter was proposed based on the traditional coupled-line theory and folded open-loop ring resonators (OLRRs) configuration. For that, a new device with both filter-type and balun-type characteristics was investigated and fabricated. Both magnetic and electric coupling structures were implemented to provide high performance balun-bandpass responses. The fabricated balun-bandpass filters had a wide bandwidth more than 200 MHz and a low insertion loss less than 2.51 dB at a center frequency of 2.6 GHz. The differences between the two outputs were below 0.4 dB in magn

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Guan, Xuehui, Ping Gui, Tao Xiong, Baoping Ren, and Lei Zhu. "Hybrid Microstrip/Slotline Ultra-Wideband Bandpass Filter with a Controllable Notch Band." International Journal of Antennas and Propagation 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/2398610.

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An ultra-wideband (UWB) bandpass filter (BPF) with a controllable notch band is presented by using hybrid microstrip/slotline structure. Firstly, a slotline resonator with symmetrically loaded stubs is fed by two microstrip lines to produce a UWB bandpass filtering response. Secondly, a microstrip triangular loop resonator is externally loaded over the slotline, and a notch band is introduced in the UWB passband. The notch band is determined by the perimeter of the loop resonator. Thirdly, two patches are added as the perturbation element to the corners of the microstrip resonator to excite a

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Zaid, A. Abdul Hassain, Abbood AL-Behadili Amer, and R. Azeez Adham. "First order parallel coupled BPF with wideband rejection based on SRR and CSRR." TELKOMNIKA Telecommunication, Computing, Electronics and Control 17, no. 6 (2019): 2704–12. https://doi.org/10.12928/TELKOMNIKA.v17i6.10790.

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is presented to obtain better results (wideband rejection, high selectivity and low bandpass insertion loss) compared to conventional design. The proposed filter (a tri-formation consisting of CSRR, SRR and stubs of stepped impedance are loaded microstrip resonator) can be configured, by laying split ring resonator (SRR) and complementary split ring resonator (CSRR) with 50 Ω microstrip lines, in addition to effect of loading two stubs of stepped impedance around center of midline microstrip with impedance line 55.36 Ω of parallel coupled. The proposed filter produces high selectiv

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Trieu Van Diep and Bui Thi Hang. "A proposal for design of 2 – 4 GHz wideband bandpass filter using suspended substrate stripline for passive radar systems." Journal of Military Science and Technology 99 (November 25, 2024): 35–43. http://dx.doi.org/10.54939/1859-1043.j.mst.99.2024.35-43.

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This article proposes a solution to design of front-end bandpass filters which finds application in wideband receivers for passive radar systems. The structure employs suspended substrate stripline as base transmission lines, dual-frequency resonators, and broad-side coupling patterns to render a wideband, steep cutoff and low-loss bandpass filter that aims at replacing lossy microstrip-based or bulky waveguide-based filters. The structure is able to scale to different operating frequency ranges in electronic warfare systems.

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36

Wu, Q. S., Q. Xue, and C. H. Chan. "Bandpass filter using microstrip ring resonators." Electronics Letters 39, no. 1 (2003): 62. http://dx.doi.org/10.1049/el:20030035.

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37

Kao-Cheng Huang, D. Hyland, A. Jenkins, D. Edwards, and D. Dew-Hughes. "A miniaturized interdigital microstrip bandpass filter." IEEE Transactions on Appiled Superconductivity 9, no. 2 (1999): 3889–92. http://dx.doi.org/10.1109/77.783877.

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38

Suginosita, F., K. Imai, N. Yazawa, et al. "13.3 GHz YBCO microstrip bandpass filter." Electronics Letters 28, no. 4 (1992): 355. http://dx.doi.org/10.1049/el:19920222.

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39

Jung, Dong-Jin, Jung-Kyu Lee, and Kai Chang. "Wideband bandpass filter using microstrip ring." Microwave and Optical Technology Letters 53, no. 1 (2010): 154–55. http://dx.doi.org/10.1002/mop.25678.

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Hsu, Cheng-Hsing, Hsin-Han Tung, and Chen-Kang Hsu. "Miniaturization interdigital hairpin microstrip bandpass filter." Microwave and Optical Technology Letters 51, no. 5 (2009): 1363–66. http://dx.doi.org/10.1002/mop.24314.

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Mu, Ruonan, Yongle Wu, Leidan Pan, Wei Zhao, and Weimin Wang. "A Miniaturized Low-Loss Switchable Single- and Dual-Band Bandpass Filter." International Journal of RF and Microwave Computer-Aided Engineering 2023 (August 18, 2023): 1–8. http://dx.doi.org/10.1155/2023/9025980.

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In this paper, a novel switchable bandpass filter is proposed. By switching p-i-n diodes on/off, the proposed filter can be switched between the single-band bandpass filter and the dual-band bandpass filter. The filter is mainly composed of eight pairs of series LC resonators, which generate passbands and transmission zeros. Considering the requirement of miniaturization and low cost, the filter is realized by interdigital capacitors and microstrip section inductors. The layout is designed by 3D simulation software HFSS, and the active part is designed by ADS software. The proposed filter has

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42

Mabrok, Mussa, Zahriladha Zakaria, Yully Erwanti Masrukin, and Tole Sutikno. "Dual-band bandpass filter based on two u-shaped defected microstrip structure." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 909–18. https://doi.org/10.11591/ijeecs.v22.i2.pp909-918.

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This paper presents design of dual-band bandpass filter by integrating conventional quarter-wavelength short circuit stubs bandpass filter with Ushaped defected microstrip structure notch filter. Based on the parametric analysis, it is found that high attenuation level can be achieved by using two U-shaped defected microstrip structure separated by specific distance. The designed circuit simulated using advanced design system and fabricated based on Roger 4350B. The simulation results are in good agreement with measured results. The designed filter covered two pass bands centered at 2.51 GHz a

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Zana, Saleem Mohammed, and Ulker Sadık. "MICROSTRIP COUPLED LINE FILTER DESIGN FOR ULTRA WIDEBAND APPLICATIONS." International Journal Of Microwave Engineering (JMICRO) 1, no. 2 (2023): 9. https://doi.org/10.5281/zenodo.7549525.

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A compact microstrip parallel coupled line filter for ultra wide band applications by means of combining a network of coupled line and defected ground is proposed. The design equations for three and five interconnected networks are derived and implemented. Simulations for three different configurations for filters are optimized. Then three prototype circuits are constructed, a bandpass filter with center frequency 2.25 GHz and two different bandpass filters (in terms of perturbations) with center frequencies 2.33GHz. For 2.25 GHz circuit wide fractional bandwidth of about 90% is obtained but u

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Liu, Guo Gao, and Li Tian. "A Novel Bandpass Filter Using Asymmetric Open Stub-Loaded SIRs." Applied Mechanics and Materials 198-199 (September 2012): 1720–25. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.1720.

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A novel microstrip bandpass filter using stepped impedance resonators (SIRs) with asymmetric open stub-loaded is proposed in this paper. The filter uses asymmetric open stubs as capacitive loads, resulting in higher-order spurious frequencies suppression and wider upper stopband. Compared with the traditional filter based on stepped impedance resonators at the same design frequency of 2.4 GHz, the proposed filter can significantly reduce the circuit size of 45 %. By changing the geometric dimensions of the asymmetric open stub-loaded SIRs, which can achieve single-band bandpass filter at the c

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45

Vineetha, Kottapadikal Vinodan, Boddapati Taraka Phani Madhav, Munuswamy Siva Kumar, Sudipta Das, Tanvir Islam, and Moath Alathbah. "Development of Compact Bandpass Filter Using Symmetrical Metamaterial Structures for GPS, ISM, Wi-MAX, and WLAN Applications." Symmetry 15, no. 11 (2023): 2058. http://dx.doi.org/10.3390/sym15112058.

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This article describes the development of a compact microstrip bandpass filter (BPF) for multiple wireless communication utilizations. The proposed bandpass filter consists of metamaterial unit cells that are symmetrical in shape. The design process involves the placement of four symmetrical split-ring resonators (SRRs) on the top plane of the BPF. It exhibits improved filter characteristics through the implementation of these SRRs. The filter was modeled and fabricated and its performance was evaluated using a Vector Network Analyzer. The designed bandpass filter shows a 5 GHz bandwidth cover

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Wang, Z. P., P. S. Hall, J. Kelly, and P. Gardner. "Microstrip Tunable Bandpass Filter with the Colinear Resonators." International Journal of Antennas and Propagation 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/960138.

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This paper presents the lumped element circuit and transmission line equivalent circuit for a varactor-tuned bandpass filter. The filter consists of transmission lines, fixed capacitors, and a varactor diode. The colinear resonant sections, in this filter, are not configured in parallel, as they are in a conventional combline filter. For this reason the overall area of the filter is reduced. The passband of the filter can be tuned from 0.69 GHz to 1.20 GHz by varying the capacitance of the varactor diode. The insertion loss of this filter changes from 1.2 dB to 2.1 dB across this bandwidth.

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Shevtsov, Kostiantyn, and Ilya Galitskiy. "MODELING OF BANDPASS FILTERS WITH ATTENUATION POLES USING PARALLEL COUPLING CHANNELS." Information and Telecommunication Sciences, no. 2 (December 23, 2024): 53–67. https://doi.org/10.20535/2411-2976.22024.53-67.

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Background. Microwave filters are critical components in modern communication systems, playing a fundamental role in signal processing by allowing specific frequency bands to pass while attenuating unwanted frequencies. Over the years, significant advancements have been made in the design and development of various types of microwave filters, including directional, microstrip, and multi-resonator filters. These filters are widely used in radar, satellite communications, and wireless networks, where high performance and precise frequency control are essential. Objective. This paper is dedicated

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Alvi, Talha Shahid, Muhammad Haris Ahsan, Muhammad Ali, et al. "A High-Performance, Low-Cost, and Integrated Hairpin Topology RF Switched Filter Bank for Radar Applications." Sensors 24, no. 2 (2024): 434. http://dx.doi.org/10.3390/s24020434.

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Switched filter banks find widespread application in frequency-hopping radar systems and communication networks with multiple operating frequencies, especially in situations demanding elevated filter element isolation. In this paper, the design and implementation of a highly isolated switchable narrow-bandpass filter bank architecture using hairpin microstrip topology is presented. The filter bank has four discrete bandpass filters with passbands of 2.0–2.2 GHz, 2.3–2.5 GHz, 3.1–3.3 GHz, and 3.9–4.1 GHz. These filters span the radar S-frequency band (2.0–4.0 GHz). In order to switch between ch

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49

Mabrok, Mussa, Zahriladha Zakaria, Yully Masrukin, and Tole Sutikno. "Dual-band bandpass filter based on two U-shaped defected microstrip structure." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 909. http://dx.doi.org/10.11591/ijeecs.v22.i2.pp909-918.

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Abstract:

This paper presents design of dual-band bandpass filter by integrating conventional quarter-wavelength short circuit stubs bandpass filter with U-shaped defected microstrip structure notch filter. Based on the parametric analysis, it is found that high attenuation level can be achieved by using two U-shaped defected microstrip structure separated by specific distance. The designed circuit simulated using advanced design system and fabricated based on Roger 4350B. The simulation results are in good agreement with measured results. The designed filter covered two pass bands centered at 2.51 GHz

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50

Ching-Wen Tang and Ming-Guang Chen. "A Microstrip Ultra-Wideband Bandpass Filter With Cascaded Broadband Bandpass and Bandstop Filters." IEEE Transactions on Microwave Theory and Techniques 55, no. 11 (2007): 2412–18. http://dx.doi.org/10.1109/tmtt.2007.908671.

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