PIER Letters
 
Progress In Electromagnetics Research Letters
ISSN: 1937-6480
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 83 > pp. 99-105

NEW ULTRA-WIDEBAND FILTER WITH SHARP NOTCHED BAND USING DEFECTED GROUND STRUCTURE

By J. Liu, W. Ding, J. Chen, and A. Zhang

Full Article PDF (385 KB)

Abstract:
An ultra-wideband microstrip bandpass filter which operates from 3.1 GHz to 10.6 GHz, with high selectivity and sharp notched band is presented and experimentally verified. The filter is composed of a square loop shaped defected ground structure, metal faces, and microstrip lines. By adding two short stubs connected by a short circuit point on the microstrip lines, the filter achieves an attractive capacity in out-of-band rejection. By placing open stubs in microstrips, the filter realizes a notched band in passband. To illustrate the possibilities of the new approach, an ultra-wideband microstrip bandpass filter is designed and fabricated. Measured results agree well with the predicted counterparts.

Citation:
J. Liu, W. Ding, J. Chen, and A. Zhang, "New Ultra-Wideband Filter with Sharp Notched Band Using Defected Ground Structure," Progress In Electromagnetics Research Letters, Vol. 83, 99-105, 2019.
doi:10.2528/PIERL18111302

References:


© Copyright 2010 EMW Publishing. All Rights Reserved