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Browse Journals & Magazines > Antennas and Propagation, IEE ...> Volume:58 Issue:6 Help

The Broadband Spiral Antenna Design Based on Hybrid Backed-Cavity

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5 Author(s)
Chunheng Liu ; Northern Inst. of Electron. Equip. of China, Beijing, China ; Yueguang Lu ; Chunlei Du ; Jingbo Cui
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Here, a hybrid backed-cavity with electromagnetic band-gap (EBG) structure and a perfect electronic conductor (PEC) is proposed for an Archimedean spiral antenna. This cavity makes the spiral antenna work operate over the 10:1 bandwidth and without the loss introduced by absorbing materials that are used conventionally to broadband spirals. Based on the artificial magnetic conductor (AMC) characteristic, an EBG is placed in the outer region of backed-cavity to improve the blind spot gain at low frequency. A PEC at the center of the structure is used to obtain high gain at high frequency. The antenna performances are improved significantly for of the low profile spiral antenna is improved significantly. A typical spiral antenna with a hybrid backed cavity is fabricated and studied experimentally. The experimental data are consistent with that of the simulation results.

Published in:
Antennas and Propagation, IEEE Transactions on  (Volume:58 ,  Issue: 6 )

Date of Publication: June 2010

Page(s):
1876 - 1882
ISSN :
0018-926X
INSPEC Accession Number:
11328329
Digital Object Identifier :
10.1109/TAP.2010.2041147
Product Type:
Journals & Magazines
Date of Publication :
22 January 2010
Date of Current Version :
01 June 2010
Issue Date :
June 2010
Sponsored by :
IEEE Antennas and Propagation Society

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