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A Planar Yagi-Uda Dipole Antenna with Dual Tapered Balun by CPW-fed to CPS

CPW-fed to CPS 전이 급전에 의한 이중 테이퍼드 발룬을 포함한 평판형 Yagi-Uda 다이폴 안테나 설계

Lee, Hyeonjin;Kim, Tea-Hong
이현진;김태홍

  • Received : 2015.06.29
  • Accepted : 2015.08.17
  • Published : 2015.12.01

Abstract

In this paper, we proposed a broadband planar Yagi-Uda dipole antenna with dual tapered balance and unblance (balun) by CPW-fed to CPS. This antenna consisted of driver, three directors, dual tapered balun and CPS-fed to CPS. The fed structure of CPW-fed to CPS had a benefit points much simpler than other planar Yagi-Uda antennas and provided design more flexibility in arranging the reflector. The proposed antenna is introduced dual tapered balun to improve the impedance matching. It balun is inserted between the CPW-ground and the CPS. The proposed antenna is exhibited the bandwidth of 4.78 GHz (1.94~6.72 GHz) (S11 < -10 dB) and the gain of 4.9~7.2 dBi within that bandwidth. This antenna will applicate wireless communication.

Keywords

Broadband antenna;CPW-fed to CPs trasition;Dipole antenna;Tapered balun

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