Vol. 104

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2022-06-20

Miniaturizing Bandpass Filter Based on Half-Mode SIW for Sub-mm 5G Applications

By Nabil Cherif, Mehadji Abri, Sarosh Ahmad, Adnan Ghaffar, Chahira Khial, Fellah Benzerga, Mohammed El Amine Chaib, Hadjira Abri Badaoui, and Bouabdallah Roumeiça
Progress In Electromagnetics Research Letters, Vol. 104, 155-160, 2022
doi:10.2528/PIERL22032303

Abstract

A miniaturized half-mode substrate-integrated-waveguide (HMSIW) based bandpass filter with defected ground surface (DGS) for sub-5G applications is presented in this research. The novelty in this article is the proposal of an original configuration of an SIW Filter composed of a mix of DGS cells; each couple of C shapes is etched exactly beneath of two cross shapes, which give us long rejection. We have used six periodic cross-shaped slots as DGS in top of the cavity plane for disturbing the current and creating stopband rejection, and we have also used three couples of C-shaped DGS cells in the bottom plane to improve the performances of the proposed filter. This novel bandpass filter is developed on a 1.54 mm-thick FR-4 (with relative permittivity of 4.3 and the tangent loss of 0.025) operating in the band ranging from 3.4 GHz to 3.8 GHz with a bandwidth of 400 MHz and having the size of 13.5 × 38.6 mm2. The proposed HMSIW-based filter is simulated, fabricated, and measured. The measurement results are in decent agreement with the simulation results.

Citation


Nabil Cherif, Mehadji Abri, Sarosh Ahmad, Adnan Ghaffar, Chahira Khial, Fellah Benzerga, Mohammed El Amine Chaib, Hadjira Abri Badaoui, and Bouabdallah Roumeiça, "Miniaturizing Bandpass Filter Based on Half-Mode SIW for Sub-mm 5G Applications," Progress In Electromagnetics Research Letters, Vol. 104, 155-160, 2022.
doi:10.2528/PIERL22032303
http://www.jpier.org/PIERL/pier.php?paper=22032303

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