Title :
Design of Single-Feed Dual-Frequency Patch Antenna for GPS and WLAN Applications
Author :
Ma, Shun-Lai ; Row, Jeen-Sheen
Author_Institution :
Dept. of Electr. Eng., Nat. Changhua Univ. of Educ., Chang-Hua, Taiwan
Abstract :
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.
Keywords :
Global Positioning System; UHF antennas; antenna radiation patterns; microstrip antennas; multifrequency antennas; polarisation; wireless LAN; GPS; UHF antennas; WLAN; antenna radiation patterns; circular polarization; conical pattern; corner-truncated square-ring patch; frequency 1575 MHz; frequency 2400 MHz; linear polarization; single-feed dual-frequency patch antenna; stacked patches; Antenna measurements; Antenna radiation patterns; Frequency measurement; Global Positioning System; Microstrip antennas; Patch antennas; Resonant frequency; Circular polarization; conical radiation; dual frequency; patch antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2161453
