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Design of Microstrip Diplexer with Wide Band-stop

By: Wenmei Zhang; Xinwei Chen; Chunhui Yao;

2007 / IEEE / 1-4244-1048-7


This item was taken from the IEEE Conference ' Design of Microstrip Diplexer with Wide Band-stop ' This paper introduces a three-port microstrip diplexer. The diplexer is made up of two band-pass filters based on symmetric microstrip electromagnetic band gap (EBG) structure and two 1/4 ¿ micro-strips (¿ is the guiding wavelength at the resonant frequency of every filter.) The result of simulation shows that the micro-strip diplexer has excellent performances of lower insertion loss and higher suppression band-stop. Also, the second harmonic falls into the stopband and can be suppressed directly.