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Design and Manufacture of Modified Ring antenna with Stub and Ground Slot for WLAN Applications

WLAN 시스템에 적용 가능한 그라운드 슬롯과 stub를 갖는 변형된 링 안테나 설계와 제작

  • Koo, Yung-Seo (Defence Agency for Technology and Quality) ;
  • Im, Dae-Soo (Department of Electron Engineering, Silla University)
  • Received : 2013.08.19
  • Accepted : 2013.09.16
  • Published : 2013.10.31

Abstract

In this paper, a dual-band circular ring monopole antenna with stub and ground slot for is proposed WLAN(Wireless Local Area Networks) applications. The proposed antenna is based on a planar monopole design, and composed of one circular ring of radiating patches, and modified feed line, and rectangular slot in the ground plane for dual-band operation. To obtain the optimized parameters, we used the simulator, Ansoft's High Frequency Structure Simulator(HFSS) and found the parameters that effect antenna characteristics. Using the obtained parameters, the antenna is fabricated, and the return loss coefficient, gain, and radiation patterns are determined for WLAN application.

본 논문에서는 WLAN 시스템에 적용 가능한 이중 공진을 갖는 변형된 원형 링 안테나를 설계 및 제작 하였다. 제안된 안테나는 평면형 모노폴 설계를 기본으로 원형 링 모양의 구조와 변형된 급전선로, 그리고 접지면의 사각 슬롯으로 구성함으로서 이중대역 특성을 갖도록 설계하였다. 최적화된 파라메타를 얻기 위해 상용 툴(HFSS)을 사용하여 시뮬레이션 하였으며 안테나 성능에 민감하게 작용하는 파라메타를 찾아내서 최적화된 수치를 얻었다. 얻어진 최적화된 수치를 사용하여 제안된 안테나를 제작하였으며 WLAN 대역에서 반사손실, 이득, 방사패턴의 특성을 측정하였다.

Keywords

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