C-Band Microstrip Lossy Filter using Resistive-loaded Closed-Loop Resonators

A new C-band inline five-pole microstrip lossy filter centered at 4.9 GHz is at the first time demonstrated in this paper. A flatter passband is achieved by loading resistors on the middle three closed-loop resonators. Using this method, the proposed filter also exhibits a wider upper stopband up to...

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Bibliographic Details
Published in2019 49th European Microwave Conference (EuMC) pp. 360 - 363
Main Authors Rao, Jiayu, Guo, Hongliang, Ni, Jia, Hong, Jiasheng, Iglesias, Petronilo Martin
Format Conference Proceeding
LanguageEnglish
Published European Microwave Association (EuMA) 01.10.2019
Subjects
Band-pass filters
C-band planar filter
Filtering theory
Frequency measurement
Microstrip closed-loop resonator
Microstrip filters
Microstrip lossy filter
Microwave filters
Passband
Resonator filters
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Summary:A new C-band inline five-pole microstrip lossy filter centered at 4.9 GHz is at the first time demonstrated in this paper. A flatter passband is achieved by loading resistors on the middle three closed-loop resonators. Using this method, the proposed filter also exhibits a wider upper stopband up to 15 GHz. In order to verify these advantages, a filter prototype is fabricated and tested. Both the measured and simulated results are presented.
DOI:10.23919/EuMC.2019.8910784