Paper
15 February 2022 A novel stepped trapezoidal CMRC with ultra-wide suppressed frequency band
Author Affiliations +
Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121661V (2022) https://doi.org/10.1117/12.2613543
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong
Abstract
A novel compact microstrip resonant cell (CMRC) with an ultra-wide suppressed frequency band is proposed. It consists of a pair of symmetrical stepped trapezoidal-shaped patches, two cross-connected high impedance microstrip lines and two low impedance open-ended microstrip stubs. A demonstrative low-pass filter (LPF) using a single cell of the stepped trapezoidal CMRC (STCMRC), with a compact size of 23.8mm×11mm, is designed, fabricated and measured. The insertion loss (IL) including that of testing fixture is less than 0.37dB in the pass band of 0 to 2GHz. The suppressed frequency band with a rejection better than 10dB spans from 3 to 18.2GHz, corresponding to a relative frequency bandwidth of 143%.
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Hongying Zhang "A novel stepped trapezoidal CMRC with ultra-wide suppressed frequency band", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121661V (15 February 2022); https://doi.org/10.1117/12.2613543
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KEYWORDS
Linear filtering

Signal attenuation

Microwave radiation

Computer simulations

Information science

Photography

Prototyping

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