Compact Ridge Substrate Integrated Waveguide Filter with Transmission Zeros

Liwen Huang; Hao Cha

doi:10.1109/LMWC.2015.2496802

Compact Ridge Substrate Integrated Waveguide Filter with Transmission Zeros

Liwen Huang, Hao Cha

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

In this letter, a compact Ridge Substrate Integrated Waveguide (RSIW) filter with transmission zeros (TZs) is developed by employing the higher-order mode coupling and the mixed electric and magnetic coupling. A novel RSIW cavity with triangular ridge is designed to implement the coupling of the higher-order mode in order to achieve a TZ above the passband. The mixed coupling is employed to obtain another TZ below the passband without increasing the size of the filter. A prototype of the mixed-coupled RSIW filter with triangular ridge is designed and tested. It is shown that high selectivity and compact size are achieved for the proposed filter.

Original language	English
Article number	7332256
Pages (from-to)	778-780
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	25
Issue number	12
DOIs	https://doi.org/10.1109/LMWC.2015.2496802
Publication status	Published - 2 Dec 2015
Externally published	Yes

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author = "Liwen Huang and Hao Cha",

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AU - Cha, Hao

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N2 - In this letter, a compact Ridge Substrate Integrated Waveguide (RSIW) filter with transmission zeros (TZs) is developed by employing the higher-order mode coupling and the mixed electric and magnetic coupling. A novel RSIW cavity with triangular ridge is designed to implement the coupling of the higher-order mode in order to achieve a TZ above the passband. The mixed coupling is employed to obtain another TZ below the passband without increasing the size of the filter. A prototype of the mixed-coupled RSIW filter with triangular ridge is designed and tested. It is shown that high selectivity and compact size are achieved for the proposed filter.

AB - In this letter, a compact Ridge Substrate Integrated Waveguide (RSIW) filter with transmission zeros (TZs) is developed by employing the higher-order mode coupling and the mixed electric and magnetic coupling. A novel RSIW cavity with triangular ridge is designed to implement the coupling of the higher-order mode in order to achieve a TZ above the passband. The mixed coupling is employed to obtain another TZ below the passband without increasing the size of the filter. A prototype of the mixed-coupled RSIW filter with triangular ridge is designed and tested. It is shown that high selectivity and compact size are achieved for the proposed filter.

KW - Microwave filters

KW - microwave integrated circuits

KW - Waveguides

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JF - IEEE Microwave and Wireless Technology Letters

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ER -

Compact Ridge Substrate Integrated Waveguide Filter with Transmission Zeros

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