Title :
Ultra-wideband phase shifter using broadside-coupled microstrip coplanar waveguide
Author :
Guo, Lisheng ; Abbosh, Amin
Author_Institution :
Sch. of ITEE, Univ. of Queensland, St. Lucia, QLD, Australia
Abstract :
A compact planar phase shifter with ultra-wideband (UWB) performance and 180° differential phase shift is proposed. It utilizes a broadside-coupled microstrip/coplanar waveguide (CPW). Thus, the proposed device can be fabricated using a simple double-side printed circuit board. Four open-ended stubs are added to the microstrip patches and CPW in order to achieve the required 180° phase shift. The designed phase shifter operates across the band from 4.2 GHz to 11 Ghz with less than ±10° differential phase imbalance, and less than 1 dB insertion loss.
Keywords :
coplanar waveguides; coupled transmission lines; microstrip lines; microwave phase shifters; printed circuits; bandwidth 4.2 GHz to 11 GHz; broadside coupled microstrip coplanar waveguide; compact planar phase shifter; differential phase imbalance; differential phase shift; double side printed circuit board; insertion loss; microstrip patches; open ended stub; ultrawideband phase shifter; Broadband communication; Coplanar waveguides; Couplings; Microstrip; Microwave circuits; Phase shifters; Ultra wideband technology; Phase shifter; coplanar waveguide; coupled transmission lines; ultra-wideband;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6694985
