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Design of Single-Feed Dual-Frequency Patch Antenna for GPS and WLAN Applications

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2 Author(s)
Shun-Lai Ma ; Dept. of Electr. Eng., Nat. Changhua Univ. of Educ., Chang-Hua, Taiwan ; Jeen-Sheen Row

A design of single-feed dual-frequency patch antennas with different polarizations and radiation patterns is proposed. The antenna structure is composed of two stacked patches, in which the top is a square patch and the bottom is a corner-truncated square-ring patch, and the two patches are connected together with four conducting strips. Two operating frequencies can be found in the antenna structure. The radiations at the lower and higher frequencies are a broadside pattern with circular polarization and a conical pattern with linear polarization, respectively. A prototype operating at 1575 and 2400 MHz bands is constructed. Both experimental and simulated results show that the prototype has good performances and is suitable for GPS and WLAN applications.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:59 ,  Issue: 9 )

Date of Publication:

Sept. 2011

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