Design of a Microstrip Low-Pass-Bandpass Diplexer Using Direct-Feed Coupled-Resonator Filter

Autor: Wei-Da Lin, Ren-Chuan Liu, Wei Lo, Pu-Hua Deng
Rok vydání: 2017
Předmět:
Zdroj: IEEE Microwave and Wireless Components Letters. 27:254-256
ISSN: 1558-1764
1531-1309
DOI: 10.1109/lmwc.2017.2661971
Popis: Previous systematic low-pass-bandpass diplexer was using coupled-feed line to design its bandpass channel response. However, a coupled-feed line coupled-resonator bandpass filter typically leads to the realization problem in the external quality factor because of the line space limitation between the coupled-feed line and the resonator. Based on our investigation, systematic low-pass-bandpass diplexer design using direct-feed coupled-resonator bandpass filter to relax this problem has never been published in the literature. Therefore, a low-pass-bandpass diplexer using direct-feed coupled-resonator bandpass filter is presented and a systematic matching design is also included in this letter.
Databáze: OpenAIRE