DocumentCode
2694610
Title
Modal-expansion analysis of electrically steerable passive array radiators (ESPAR)
Author
Wang, Quanxin ; Shen, Zhongxiang
Author_Institution
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fYear
2005
fDate
3-8 July 2005
Firstpage
27
Abstract
The modal-expansion method has been used for analyzing electrically steerable passive array radiators (ESPAR) driven by a gap source. A simple model of a four-element ESPAR antenna has been studied and its S-parameter results are in good agreement with those by HFSS. A designed seven-monopole ESPAR antenna has been discussed and simulation results have shown that it can be used to steer its radiation beam by properly adjusting the loaded varactors of its passive elements.
Keywords
S-parameters; antenna radiation patterns; beam steering; modal analysis; monopole antenna arrays; varactors; S-parameter; electrically steerable passive array radiators; four-element ESPAR antenna; gap source; loaded varactors; modal-expansion analysis; passive elements; radiation beam; seven-monopole ESPAR antenna; Antenna arrays; Bandwidth; Coaxial components; Costs; Directive antennas; Feeds; Polarization; Transmission line antennas; Varactors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN
0-7803-8883-6
Type
conf
DOI
10.1109/APS.2005.1552730
Filename
1552730
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