Arbitrary Prescribed Flat Wideband Group Delay Absorptive Microstrip Bandpass Filters

Author(s):  
Girdhari Chaudhary ◽  
Yongchae Jeong
Keyword(s):  
2005 ◽  
Vol 53 (4) ◽  
pp. 1164-1167 ◽  
Author(s):  
A.R. Djordjevic ◽  
A.G. Zajic
Keyword(s):  

Author(s):  
Hussein Ali Hussein ◽  
Yaqeen Sabah Mezaal ◽  
Ban M. Alameri

In this paper, the miniaturized microstrip diplexer has been designed for dual channels based on FR4 substrate material. It consists of two bandpass filters (BPFs) functioning under dissimilar frequency bands coupled with a unified junction. Every BPF has been created by a meandered line resonator, step impedance resonator, uniform impedance resonator, and input/output feed lines. The AWR electromagnetic simulator has been used for characterizing the frequency responses of the projected diplexer. Noble scattering parameter results with narrow band responses and negative group delay values are obtained for the proposed diplexer. The microstrip diplexer has an interesting band isolation between the two filters around 31 dB. The device has been successfully fabricated and verified with the simulations.


2002 ◽  
Vol 41 (16) ◽  
pp. 3172 ◽  
Author(s):  
Keqi Zhang ◽  
Jue Wang ◽  
Erik Schwendeman ◽  
David Dawson-Elli ◽  
Ralf Faber ◽  
...  

Author(s):  
Keqi Zhang ◽  
Jue Wang ◽  
Erik Schwendeman ◽  
David Dawson-Elli ◽  
Ralf Faber ◽  
...  

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