A Compact Triple-Mode Bandpass Hmsiw Filter

Wang, Zicheng; Yang, Tao; Dong, and Jun

doi:10.2528/pierl14060802

Cited by 2 publications

(1 citation statement)

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“…Filters have always been an indispensable part in microwave and millimeter wave systems, and their performances affect the communication quality of the whole system [1]. Traditional metal waveguides are bulky and difficult to integrate with the planar structures.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Hmsiw Dual-Band Filter Based on CSRRS and Microstrip Open-Stubs

Lv¹,

Meng²,

Zou³

2018

PIER Letters

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A method is proposed for a half-mode substrate integrated waveguide (HMSIW) bandpass filter (BPF) to obtain dualband below the cutoff frequency. Complementary split-ring resonators (CSRRs) and microstrip open-stubs are integrated on the top of an HMSIW cavity. The structure produces two center frequencies both below the cutoff frequency of the original HMSIW without increasing the cavity size. Results indicate that the center frequencies are 2.95 GHz and 3.99 GHz, and 3 dB fractional bandwidths (FBWs) are 9.1% and 4.6%, respectively. There is a transmission zero between the two frequencies, which enhances the out-of-band suppression performance. The measured results are in good agreement with the simulated ones. This new combination not only obtains two usable passbands below the cutoff frequency, but also makes the filter more compact. The filter has some practical and application significance.

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Section: Introductionmentioning

confidence: 99%