%0 Journal Article
%T Microstrip Phase Inverter Using Interdigital Strip Lines and Defected Ground
%A Xu-Chun Zhang
%A Chang-Hong Liang
%A Jun Wei Xie
%J PIER     Letters
%D 2012
%I EMW Publishing
%R 10.2528/PIERL11121403
%X A new wide-band microstrip phase inverter is reported in this paper. Interdigital striplines, defected ground and via holes are used to obtain 180กใ phase shift. The structure is simple and can be realized with ordinary microwave integrated circuit (MIC) fabrication process. The bandwidth is enhanced largely. A lumped-element model of the phase shifter is devised. The fabricated phase inverter has a bandwidth of 105.6% (2.065-6.682 GHz), with 1 dB insertion loss and a phase deviation less than 10กใ.
%U http://www.jpier.org/pierl/pier.php?paper=11121403