DocumentCode :
82683
Title :
A Compact Microstrip Phase Shifter Employing Reconfigurable Defected Microstrip Structure (RDMS) for Phased Array Antennas
Author :
Can Ding ; Guo, Y. Jay ; Pei-Yuan Qin ; Yintang Yang
Author_Institution :
Sch. of Micro-Electron., Xidian Univ., Xi´an, China
Volume :
63
Issue :
5
fYear :
2015
fDate :
May-15
Firstpage :
1985
Lastpage :
1996
Abstract :
A compact phase shifter using reconfigurable defected microstrip structure (RDMS) is proposed for phased array antennas. A complete phase shifter design scheme that serves as an engineering guidance is described. Stepwise phase shifters that have phase-shifting ranges of 90° and 180° with a step size of 45° are designed, fabricated, and tested. The experimental results demonstrate that the size, maximum insertion loss of the phase shifters, and the quantity of the lumped elements are reduced by 80%-90%, 25%-30%, and 50%, respectively, compared to our previous work. Subsequently, a four-element phased array is built employing such RDMS-based phase shifters, realizing a size reduction of 55% in the array size. The measurement results show that the phased array antenna is able to switch its main beam between -15°, 0°, and 15° in the H-plane, with the average realized gain around 10 dBi.
Keywords :
antenna phased arrays; microstrip antenna arrays; microwave phase shifters; RDMS-based phase shifter; compact microstrip phase shifter; insertion loss; lumped element; phased array antenna; reconfigurable defected microstrip structure; Arrays; Insertion loss; Loss measurement; Mathematical model; Microstrip; Microstrip antenna arrays; Phase shifters; Insertion loss; Reconfigurable; defected microstrip structure (RDMS); phase shift; phased array antennas; reconfigurable defected microstrip structure (RDMS);
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2015.2408357
Filename :
7051255
Link To Document :
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