Two miniaturized triple‐band filters based on 90 0 sector substrate integrated waveguide

2020 ◽  
Vol 62 (12) ◽  
pp. 3820-3828
Author(s):  
Sheng Zhang ◽  
Ya Guo ◽  
Yu‐Yu Zhou ◽  
Jia‐Sheng Hong
2018 ◽  
Vol 60 (3) ◽  
pp. 575-578 ◽  
Author(s):  
Sheng Zhang ◽  
Jia Yu Rao ◽  
Jun Jie Cheng ◽  
Jia Sheng Hong ◽  
Fa Lin Liu

2020 ◽  
pp. 112-116
Author(s):  
Cowsigan S P ◽  
Saraswady D

Substrate Integrated Waveguide (SIW) is a special antenna technology which retains reduced copper surface waves and low dielectric loss property of classical rectangular waveguides. The antennas developed on SIW have simple configuration with an ease of fabrication in flame redundant wearable and integration in walls and floors. In this sense a Quarter-mode SIW (QMSIW) antenna has been designed, analyzed and its performance has been compared with Half-mode SIW. QMSIW has been precisely designed to operate efficiently in the range of 40 - 57 GHz. It aims at enhancing the bandwidth for 5G applications with a maximum return loss of -36 db at 55 GHz. HMSIW structure has Triple band resonant frequencies at 20.5 GHz, 24.7 GHz & 27 GHz with the return loss values of -34 db, -14 db & -32.5 db respectively. Both antennas operate in 20 – 72 GHz range of 5G applications.


Author(s):  
Sambaiah Pelluri ◽  
M. V. Kartikeyan

Abstract In this paper, a triple-band bandpass filter using a multi-mode half-mode substrate integrated waveguide (HMSIW) cavity is presented. In this design, back-to-back connected half-mode defected ground structure (DGS) is loaded into the HMSIW cavity, which generates the first passband. The first four modes of HMSIW cavity are TM110, TM120, TM310, and TM320. They have been used to generate second and third passbands. The slot line perturbation is used to shift the modes close to each other. Here, TM110 and TM120 constitute second passband, and TM310 and TM320 give third passband. Moreover, the notch band is designed using embedded open-circuited stub to improve the attenuation between the second and third passbands. The proposed filter is designed and fabricated on RT/Duroid 5880 substrate with a thickness of 0.508 mm. The measured results are in line with simulated ones for each of the passbands, and the center frequencies are 6.28, 13, and 19.12 GHz.


2016 ◽  
Vol 58 ◽  
pp. 59-65 ◽  
Author(s):  
Huan-Ying Wang ◽  
Guo-Hui Li ◽  
Yu-Dan Wu ◽  
Wei Yang ◽  
Tong Mou

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