Compact Triple-Band Printed Antenna with a via Hole Connecting to a Parasitic Patch for Wlan and Wimax Applications

C. Wang National Key Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xian, Shaanxi 710071, China;, Email: [email protected]

Z.-H. Yan National Key Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xian, Shaanxi 710071, China

P. Xu National Key Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xian, Shaanxi 710071, China

B. Li National Key Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xian, Shaanxi 710071, China

Abstract

A compact triple-band printed antenna for wireless local area network and worldwide interoperability for microwave access (WLAN and WiMAX) applications is proposed. The antenna occupies only a small area of 34 × 11 mm² and consists of branch strips, a parasitic patch and a modified ground plane. With the use of a plated-through via connecting the parasitic patch with the branch strips on the both sides, multiple impedance bandwidths covering WLAN/2.4/5.2/5.8 and WiMAX/3.5 are obtained. In addition, the proposed antenna has good radiation characteristic and peek gains to be 3.92, 2.8 and 3.8 dBi at 2.45, 3.5 and 5.5 GHz, respectively.

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Compact Triple-Band Printed Antenna with a via Hole Connecting to a Parasitic Patch for Wlan and Wimax Applications

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Compact Triple-Band Printed Antenna with a via Hole Connecting to a Parasitic Patch for Wlan and Wimax Applications

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