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Yagi Patch Antenna With Dual-Band and Pattern Reconfigurable Characteristics

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4 Author(s)
Xue-Song Yang ; Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol., Chengdu ; Bing-Zhong Wang ; Weixia Wu ; Shaoqiu Xiao

This letter presents a slot-loaded Yagi patch antenna with dual-band and pattern reconfigurable characteristics. The beam can scan in the E-plane by switching the modes of the antenna, which is implemented by changing the states of the switches installed in the slots etched on the parasitic patches. Different modes of the antenna have different radiation patterns and operating frequency bands. There are three modes having a common band of 9.15-9.45 GHz and their beams direct to -7deg, +33.5deg, and -40deg in the E-plane. Two among three modes also have another common frequency band around 10.3 GHz and the main beams direct to +58.5deg and -62.5deg, respectively. The third mode also has another frequency band around 10.85 GHz and has a dual-beam pattern. Simulated and measured results are given and they agree well with each other. The antenna can be used in radar, satellite communications, etc

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:6 )

Date of Publication:

2007

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