Relevant bibliographies by topics / Stub matching

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Stub matching'

Author: Grafiati
Published: 4 June 2025
Last updated: 11 July 2025

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Journal articles on the topic "Stub matching"

1

Bhadravathi Ghouse, Parveez Shariff, Pradeep Kumar, Pallavi R. Mane, et al. "Dual-Band Antenna at 28 and 38 GHz Using Internal Stubs and Slot Perturbations." Technologies 12, no. 6 (2024): 84. http://dx.doi.org/10.3390/technologies12060084.

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A double-stub matching technique is used to design a dual-band monopole antenna at 28 and 38 GHz. The transmission line stubs represent the matching elements. The first matching network comprises series capacitive and inductive stubs, causing impedance matching at the 28 GHz band with a wide bandwidth. On the other hand, the second matching network has two shunt inductive stubs, generating resonance at 38 GHz. A Smith chart is utilized to predict the stub lengths. While incorporating their dimensions physically, some of the stub lengths are fine-tuned. The proposed antenna is compact with a profile of 0.75λ1×0.66λ1 (where λ1 is the free-space wavelength at 28 GHz). The measured bandwidths are 27–28.75 GHz and 36.20–42.43 GHz. Although the physical series capacitance of the first matching network is a slot in the ground plane, the antenna is able to achieve a good gain of 7 dBi in both bands. The proposed antenna has a compact design, good bandwidth and gain, making it a candidate for 5G wireless applications.
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Slobodan Babic and Cevdet Akyel. "An improved analytical method for triple stub matching (stubs in series)." Global Journal of Engineering and Technology Advances 7, no. 2 (2021): 103–23. http://dx.doi.org/10.30574/gjeta.2021.7.2.0074.

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In this paper we give the new improved analytical method of triple stub tuner for matching the load impedances to provide the maximum power transfer between a generator and a load. The stubs are connected in series with the line at the appropriate distances from the load. The characteristic impedances of the transmission line and the stabs are different. The paper points on the determination of the length for the first stub near the load. The limit lengths for the first and the second stub are found for which the matching is possible. The length of the third stub is directly obtained from the matching conditions. Event though there is not the unique solution for the triple stub matching, we shoved also the existence of the unique solutions under some conditions. The special cases are also treated. The results of this method are verified by using the standing wave ratio SWR. Event though there are not many papers on this subject this work could be useful for engineers and physicist which work in this domain.
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Slobodan Babic and Cevdet Akyel. "An improved analytical method for triple stub matching (Stubs in Parallel)." Global Journal of Engineering and Technology Advances 7, no. 3 (2021): 157–87. http://dx.doi.org/10.30574/gjeta.2021.7.3.0089.

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In this paper we give the new improved analytical method of triple stub tuner for matching the load impedances to provide the maximum power transfer between a generator and a load. The stubs are connected in parallel with the line at the appropriate distances from the load. The characteristic impedances of the transmission line and the stabs are different. The paper points on the determination of the length for the first stub near the load. The limit lengths for the first and the second stub are found for which the matching is possible. The length of the third stub is directly obtained from the matching conditions. Even though there is not the unique solution for the triple stub matching we also shoved the existence of unique solutions under some conditions. The special cases are also treated. The results of this method are verified by those obtained using the Smith chart and there are in exceptionally good agreement. Even though there are not many papers on this subject this work could be useful for engineers, and physicist which work in this domain.
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4

Slobodan, Babic, and Akyel Cevdet. "An improved analytical method for triple stub matching (stubs in series)." Global Journal of Engineering and Technology Advances 7, no. 2 (2021): 103–23. https://doi.org/10.5281/zenodo.5011738.

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Abstract:
In this paper we give the new improved analytical method of triple stub tuner for matching the load impedances to provide the maximum power transfer between a generator and a load. The stubs are connected in series with the line at the appropriate distances from the load.  The characteristic impedances of the transmission line and the stabs are different. The paper points on the determination of the length for the first stub near the load. The limit lengths for the first and the second stub are found for which the matching is possible. The length of the third stub is directly obtained from the matching conditions. Event though there is not the unique solution for the triple stub matching, we shoved also the existence of the unique solutions under some conditions. The special cases are also treated. The results of this method are verified by using the standing wave ratio SWR. Event though there are not many papers on this subject this work could be useful for engineers and physicist which work in this domain.
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5

Slobodan, Babic, and Akyel Cevdet. "An improved analytical method for triple stub matching (Stubs in Parallel)." Global Journal of Engineering and Technology Advances 7, no. 3 (2021): 157–78. https://doi.org/10.5281/zenodo.5052386.

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Abstract:
In this paper we give the new improved analytical method of triple stub tuner for matching the load impedances to provide the maximum power transfer between a generator and a load. The stubs are connected in parallel with the line at the appropriate distances from the load.  The characteristic impedances of the transmission line and the stabs are different. The paper points on the determination of the length for the first stub near the load. The limit lengths for the first and the second stub are found for which the matching is possible. The length of the third stub is directly obtained from the matching conditions. Even though there is not the unique solution for the triple stub matching we also shoved the existence of unique solutions under some conditions. The special cases are also treated. The results of this method are verified by those obtained using the Smith chart and there are in exceptionally good agreement. Even though there are not many papers on this subject this work could be useful for engineers, and physicist which work in this domain. 
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6

Liu, Rufan, Shimiao Lai, Tao Hong, et al. "A Low-Reflection Tuning Strategy for Three-Stub Waveguides." Electronics 13, no. 7 (2024): 1304. http://dx.doi.org/10.3390/electronics13071304.

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In high-power microwave applications, the reflection of energy can be effectively reduced by adjusting the three-stub waveguide. However, most of the existing tuning algorithms do not make an arrangement for the adjustment sequence of stubs, and accurately calculating the depth of the stubs requires a great deal of time via electromagnetic (EM) simulations, which may cause large reflection in the matching process. To solve these problems, we first propose an improved calculation method that can accurately calculate the input impedance of a three-stub waveguide. Then, an impedance matching algorithm is designed based on the equivalent circuit model that can quickly and accurately calculate the optimal depth of the stubs. Finally, we present a low-reflection tuning strategy to suppress the large reflection during the adjustment of the stub process. An experimental system is built to verify the calculation method and the tuning strategy. The results show that the strategy can avoid large reflection in the case of load mutation and can maintain low reflection when the load changes continuously. The algorithm meets the needs of the industry and can be used for automatic and real-time adjustment of three-stub waveguides of different specifications.
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Ahmad, Husham J., and Firas M. Z. Mahmood. "Single and Double Stub Tuner Impedance Matching of Microwave Circuits Using Mathcad Software." Cihan University-Erbil Scientific Journal 8, no. 2 (2024): 1–8. http://dx.doi.org/10.24086/cuesj.v8n2y2024.pp1-8.

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In this paper impedance matching, using tuning stubs of different types and forms are designed and analyzed using Mathcad Software. The aim of this paper is impedance matching which is to connect an arbitrary complex-valued load impedance to a source with a given resistive internal impedance (Intrinsic Impedance Zo) without causing input reflection and to ensure transfer of maximum power from source to load (ZL). Smith chart is designed in this paper with a Mathcad software. This tool is considered as a very powerful tool to show the results on Smith chart. Single and double stub tuners are designed and analyzed with examples. The designed software is used in this paper for different cases, such as single stub and double stub tuners (open-ended and short-ended) for matching capacitive and inductive loads. The software designed in this paper is useful for designers working in this field as well as in education process.
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Susilawati, Helfy, Ahmad Fauzi, and Akhmad Hasyim. "Impedance Matching Simulation for Microstrip Antenna on Frequency 3.4-3.7 GHz Using Double Stub." TELKA - Telekomunikasi Elektronika Komputasi dan Kontrol 6, no. 2 (2020): 113–23. http://dx.doi.org/10.15575/telka.v6n2.113-123.

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Impedance matching is an attempt to adjust the antenna impedance with the characteristic impedance of the transmission line. Impedance matching has functions to avoid reflected power from the antenna so that power cannot be received by the receiver. In this study, impedance matching was used double stub. The voltage standing wave ratio (VSWR) indicates how well the impedance matching is made. Simulation of this impedance matching will use to microstrip antenna on frequency 3.4 – 3.7 GHz. CST Studio Suite is used to simulating the antenna microstrip with double stub. Based on the result, this research shows that VSWR and return loss in single and double rectangular microstrip antenna have a better value if use impedance matching than without using impedance matching.
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Mo, Lingfei, and Chunfang Qin. "Tunable Compact UHF RFID Metal Tag Based on CPW Open Stub Feed PIFA Antenna." International Journal of Antennas and Propagation 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/167658.

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For the ultrahigh frequency radio frequency identification (UHF RFID) metal tag, it always has the difficulties of compact designing, especially for the conjugate impedance matching, low antenna gain, and fabrication or environmental detuning. In this paper, a tunable compact UHF RFID metal tag is designed based on CPW open stub feed PIFA antenna. By changing the length of the open stub, the impedance of the PIFA antenna could be tuned in a large scale for conjugate impedance matching. The open stub makes it easy to tune the resonant frequency to alleviate the fabrication detuning or the environmental detuning, even after the manufacture. Moreover, the CPW structure of the open stub feed can resist the effects of the metallic surface and increase the antenna gain for the compact PIFA antenna. Modeling analysis and simulation are in good agreement with the measurement results. It showed that the UHF RFID metal tag could be designed compact with good performance based on the CPW open stub feed PIFA antenna.
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10

Giannini, F., G. Bartolucci, and M. Ruggieri. "Low-impedance matching: The straight stub solution." Microwave and Optical Technology Letters 2, no. 3 (1989): 96–101. http://dx.doi.org/10.1002/mop.4650020307.

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Dissertations / Theses on the topic "Stub matching"

1

Lin, Hung-Hsun, and 林宏勳. "Design of Microwave Filters Using Multi-stub Matching Technique." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/20758253141651918315.

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碩士<br>國立中興大學<br>電機工程學系所<br>95<br>Three kinds of design methods for lowpass filters and highpass filters are presented in the thesis. Three kinds of microwave filters are the A-type, B-type and C-type separately. The A-type filter is only suitable for the odd orders. The B-type filter is only suitable for the even orders. The C-type filter is suitable for the odd orders and even orders. Due to the limitation of PCB board fabrication. This thesis concentrates on matching by changing multi-stub impedances in the research . This work demonstrates three kinds of design formula in filters design and further discuss the impedance match of the multi-stub impedance and the admittance J inverters. The microstrip line obtain a new length value when the multi-stub impedances are matched at the same value. Therefore, a novel filter can be designed by adjusting the multi-stub impedance value. Afterward the work further discusses the variation of the multi-stub impedance. The simulation results show that the insertion loss and the return loss have obvious improvement. During the increase of impedance value, the attenuation performances of the filter become sharply. Practically, the designed lowpass and highpass filters are made by LTCC (low-temperature co-fired ceramics) process. At last, the thesis would demonstrate that the simulation results and the measurement results are identical.
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Lee, Heung Ki. "Adaptive Resource Management Schemes for Web Services." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7608.

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Web cluster systems provide cost-effective solutions when scalable and reliable web services are required. However, as the number of servers in web cluster systems increase, web cluster systems incur long and unpredictable delays to manage servers. This study presents the efficient management schemes for web cluster systems. First of all, we propose an efficient request distribution scheme in web cluster systems. Distributor-based systems forward user requests to a balanced set of waiting servers in complete transparency to the users. The policy employed in forwarding requests from the frontend distributor to the backend servers plays an important role in the overall system performance. In this study, we present a proactive request distribution (ProRD) to provide an intelligent distribution at the distributor. Second, we propose the heuristic memory management schemes through a web prefetching scheme. For this study, we design a Double Prediction-by-Partial-Match Scheme (DPS) that can be adapted to the modern web frameworks. In addition, we present an Adaptive Rate Controller (ARC) to determine the prefetch rate depending on the memory status dynamically. For evaluating the prefetch gain in a server node, we implement an Apache module. Lastly, we design an adaptive web streaming system in wireless networks. The rapid growth of new wireless and mobile devices accessing the internet has contributed to a whole new level of heterogeneity in web streaming systems. Particularly, in-home networks have also increased in heterogeneity by using various devices such as laptops, cell phone and PDAs. In our study, a set-top box(STB) is the access pointer between the internet and a home network. We design an ActiveSTB which has a capability of buffering and quality adaptation based on the estimation for the available bandwidth in the wireless LAN.
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Book chapters on the topic "Stub matching"

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Chaturvedi, Prakash Kumar. "Transmission Lines, Waveguides, Strip Lines, and Stub Matching by Smith Chart." In Microwave, Radar & RF Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7965-8_2.

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Shanmugam, Anusha, Prasanta Kumbhakar, and Madhu Thalakulam. "Superconducting Stub Tuner Impedance Matching Circuit for High-Frequency Measurements of Nanoscale Devices." In Springer Proceedings in Physics. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1571-8_34.

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Mishra, Rashmita, Subhrajit Pradhan, and Kailash Chandra Rout. "Design and Analysis of 2nd-Order Bandpass Filters Using SIW and Microstrip Patch Transitions with Stub Matching." In Advances in Sustainability Science and Technology. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2277-0_16.

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S, Pavithra, and AmeeliaRoseline A. "Circularly Polarized MIMO Antenna Using F-Shaped Mirrored Structure." In Intelligent Systems and Computer Technology. IOS Press, 2020. http://dx.doi.org/10.3233/apc200180.

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In MIMO(multiple input multiple output) system, antenna performance are degraded by mutual coupling hence to overcome this we go for circular polarization. In this paper we use planar, circularly polarized MIMO patch with three grounded stubs, F-shaped mirrored structure to achieve same time isolation &amp;matching with offset feeding between two patches for circularly polarization.The elements of antenna are closely packed with 0.06λ0 of edge to edge distance at 2.5 GHZ frequency. The proposed antenna will results the impedance matching S11 &lt; -10 dB and high isolation of S12 &lt; -20 dB.
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Conference papers on the topic "Stub matching"

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Murat, Caner, Mohammad Alibakhshikenari, Patrizia Liveri, and Ernesto Limiti. "A Stub Matching Fed High Gain Array Antenna Design for mm-Wave Application." In 2024 17th United Conference on Millemetre Waves and Terahertz Technologies (UCMMT). IEEE, 2024. http://dx.doi.org/10.1109/ucmmt62975.2024.10737812.

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Sangpet, Patchadaporn, Wanchalerm Chanwattanapong, Chayapol Sangmook, et al. "Design of Ultra-Wideband Antipodal Vivaldi Antenna with Improving Impedance Matching using Elliptical Stub for GPR Applications." In 2025 13th International Electrical Engineering Congress (iEECON). IEEE, 2025. https://doi.org/10.1109/ieecon64081.2025.10987673.

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Bilik, Vladimir. "Stub swapping in automatic three-stub impedance matching systems." In 2013 13th Conference on Microwave Techniques (COMITE). IEEE, 2013. http://dx.doi.org/10.1109/comite.2013.6545069.

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Vian, James. "Double-stub impedance matching algorithm." In 2007 IEEE Antennas and Propagation Society International Symposium. IEEE, 2007. http://dx.doi.org/10.1109/aps.2007.4396537.

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Unlu, M., K. Topalli, H. Atasoy, et al. "A Reconfigurable RF MEMS Triple Stub Impedance Matching Network." In 2006 European Microwave Conference. IEEE, 2006. http://dx.doi.org/10.1109/eumc.2006.281272.

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Yazdani, Farzad, and Raafat R. Mansour. "Realizing reconfigurable stub impedance matching networks using MEMS switches." In 2017 47th European Microwave Conference (EuMC). IEEE, 2017. http://dx.doi.org/10.23919/eumc.2017.8231034.

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Yazdani, Farzad, and Raafat R. Mansour. "Realizing reconfigurable stub impedance matching networks using MEMS switches." In 2017 12th European Microwave Integrated Circuits Conference (EuMIC). IEEE, 2017. http://dx.doi.org/10.23919/eumic.2017.8230728.

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Hardock, Andreas, Renato Rimolo-Donadio, Heinz-Dietrich Bruns, and Christian Schuster. "Double stub matching in multilayered printed circuit board using vias." In 2012 IEEE 62nd Electronic Components and Technology Conference (ECTC). IEEE, 2012. http://dx.doi.org/10.1109/ectc.2012.6249124.

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Liu, Te-Wei, and Wen-Hua Tu. "CPW-fed tri-band slot antenna with impedance matching stub." In 2016 IEEE/ACES International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES). IEEE, 2016. http://dx.doi.org/10.1109/ropaces.2016.7465431.

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Abrianto, Hari Heru, Norliza Mohamed, Rudzidatul Akmam Dziyauddin, Suriani Mohd Sam, Mohd Azri Mohd Izhar, and Norulhusna Ahmad. "Enhancement of Antenna Array Bandwidth through Matching Impedance Modification Using Double Stub Matching on Feeding." In 2021 IEEE Symposium On Future Telecommunication Technologies (SOFTT). IEEE, 2021. http://dx.doi.org/10.1109/softt54252.2021.9673147.

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Reports on the topic "Stub matching"

1

Zheng S. and J. M. Brennan. Computer Aided Design of Stub Tuners for Impedance Matching. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/1061699.

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