Two New Electric Coupling Structures for Double Folded Substrate Integrated Waveguide Cavity Filters with Transmission Zeros

2013 ◽  
Vol 55 (8) ◽  
pp. 1815-1818 ◽  
Author(s):  
Guang Yang ◽  
Wei Liu ◽  
Falin Liu
Keyword(s):  
Substrate Integrated Waveguide ◽  
Electric Coupling ◽  
Transmission Zeros ◽  
Cavity Filters

scholarly journals Novel Hexagonal Dual-Mode Substrate Integrated Waveguide Filter with Source-Load Coupling

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Ziqiang Xu ◽  
Gen Zhang ◽  
Hong Xia ◽  
Meijuan Xu
Keyword(s):  
Center Frequency ◽  
Substrate Integrated Waveguide ◽  
Fractional Bandwidth ◽  
Dual Mode ◽  
Transmission Zeros ◽  
Cavity Structure ◽  
Waveguide Filter ◽  
And Performance ◽  
Single Cavity ◽  
Good Agreement

Hexagonal dual-mode cavity and its application to substrate integrated waveguide (SIW) filter are presented. The hexagonal SIW resonator which can combine flexibility of rectangular cavity and performance of circular cavity is convenient for dual-mode bandpass filters design. By introducing coupling between source and load, the filter not only has good selectivity due to two controllable transmission zeros, but also has a small size by the virtue of its single-cavity structure. A demonstration filter with a center frequency of 10 GHz and a 3 dB fractional bandwidth of 4% is designed and fabricated to validate the proposed structure. Measured results are in good agreement with simulated ones.

A Dual-Mode Substrate Integrated Waveguide Filter With Controllable Transmission Zeros

2015 ◽  
Vol 25 (9) ◽  
pp. 576-578 ◽  
Author(s):  
Fei Cheng ◽  
Xian Qi Lin ◽  
Michael Lancaster ◽  
Kaijun Song ◽  
Yong Fan
Keyword(s):  
Substrate Integrated Waveguide ◽  
Dual Mode ◽  
Transmission Zeros ◽  
Waveguide Filter

Quarter-Mode Cavity Filters in Substrate Integrated Waveguide Technology

2016 ◽  
Vol 64 (8) ◽  
pp. 2538-2547 ◽  
Author(s):  
Stefano Moscato ◽  
Cristiano Tomassoni ◽  
Maurizio Bozzi ◽  
Luca Perregrini
Keyword(s):  
Substrate Integrated Waveguide ◽  
Cavity Filters

Substrate-integrated waveguide cross-coupled filters with mixed electric and magnetic coupling structure

2018 ◽  
Vol 10 (8) ◽  
pp. 896-903 ◽  
Author(s):  
Amit Ranjan Azad ◽  
Dharmendra Kumar Jhariya ◽  
Akhilesh Mohan
Keyword(s):  
Printed Circuit Board ◽  
Single Layer ◽  
Magnetic Coupling ◽  
Frequency Selectivity ◽  
Circuit Board ◽  
Substrate Integrated Waveguide ◽  
Transmission Zeros ◽  
Coupling Structure ◽  
Board Process ◽  
Good Agreement

AbstractThis paper presents a substrate-integrated waveguide (SIW) mixed electric and magnetic coupling structure implemented on a single-layer substrate to create finite transmission zeros (TZs), which can be used to design microwave filters with higher frequency selectivity. Mixed coupling is realized by three slot-lines on the top metal plane combined with an iris-window between two adjacent SIW cavities. The electric and magnetic coupling can be separately controlled by adjusting the dimensions of the slot-lines and the width of the iris-window, and a controllable TZ below or above the passband can be produced. Furthermore, a detailed analysis of the mixed coupling structure is presented. To demonstrate the validity of the proposed structure, third- and fourth-order cross-coupled generalized Chebyshev bandpass filters are designed and fabricated using the standard printed circuit board process. The experimental results are in good agreement with the simulation results. The filters exhibit simple structure and good frequency selectivity.

scholarly journals Balanced substrate integrated waveguide filters with controllable finite transmission zeros

2020 ◽  
Vol 15 (1) ◽  
pp. 1-11
Author(s):  
Qing Liu ◽  
Na An ◽  
Zhongyang He ◽  
Dewei Zhang ◽  
Xian Wang ◽  
...  
Keyword(s):  
Substrate Integrated Waveguide ◽  
Transmission Zeros ◽  
Waveguide Filters

Partially Air-Filled Substrate Integrated Waveguide Filters With Full Control of Transmission Zeros

2019 ◽  
Vol 67 (9) ◽  
pp. 3673-3682 ◽  
Author(s):  
Lorenzo Silvestri ◽  
Anthony Ghiotto ◽  
Cristiano Tomassoni ◽  
Maurizio Bozzi ◽  
Luca Perregrini
Keyword(s):  
Substrate Integrated Waveguide ◽  
Transmission Zeros ◽  
Full Control ◽  
Waveguide Filters

A novel dual-band filter based on single-cavity CTSRR-loaded triangular substrate-integrated waveguide

2019 ◽  
Vol 11 (9) ◽  
pp. 894-898
Author(s):  
Q. F. Geng ◽  
H. J. Guo ◽  
Y. Y. Zhu ◽  
W. Huang ◽  
S. S. Deng ◽  
...  
Keyword(s):  
Split Ring Resonator ◽  
Dual Band ◽  
Substrate Integrated Waveguide ◽  
Transmission Zeros ◽  
Band Filter ◽  
Feeding Technique ◽  
Filter Loading ◽  
Degenerate Modes ◽  
Single Cavity ◽  
Good Agreement

AbstractIn this paper, a novel single-cavity triangular substrate-integrated waveguide (TSIW) dual-band filter loading a complementary triangular split ring resonator (CTSRR) is proposed, which has three transmission zeros (TZs) in the stopband in total. The dual-band response is achieved by the CTSRR and the degenerate modes of the TSIW cavity. In order to control the TZs, we propose two adjustment techniques, shift feeding technique and adding via perturbation. In addition, the CTSRR etched on the surface can produce a new TZ in the upper first-passband. Finally, a dual-band filter with three TZs is simulated, fabricated, and measured. There is a good agreement between the simulated results and measured ones.

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