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이제선(Jea-Sun Lee),Gombo Otgonbaatar(오곤바타 검보),윤금노(Keum-No Yoon),방재훈(Jae-Hoon Bang),안병철(Bierng-Chearl Ahn) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.1
In this paper, a planar dipole with a quasi-isotropic radiation pattern is proposed for use in 2.45㎓ ZigBee communications. A quasi-isotropic radiation pattern is realized by employing a C-shaped dipole electrode pattern on the FR-4 substrate. The antenna electrode shape is optimized using a commercial software so that the dipole shows minimum gain difference, wide frequency bandwidth and good impedance matching performances. The designed antenna is fabricated and its performance is measured. Measured performances of the fabricated antenna are 1.9㏈i maximim gain, 6.9㏈ gain difference, and 310㎒ bandwidth, which are in good agreement with the design goal.