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대칭적 수직 방사패턴을 가지는 ZigBee용 인쇄형 미앤더 모노폴 안테나 설계
민동현(DongHyeon Min),오던토이아 바산체렌(Baasantseren Odontuya),방재훈(JaeHoon Bang),안병철(BierngChearl Ahn) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.5
This paper presents a printed meander monopole antenna with a symmetric vertical radiation pattern for ZigBee applications. Short-range wireless communications often require antennas with radiation patterns omnidirectional in the horizontal plane and symmetric in the vertical direction. In general, printed monopoles have an asymmetric vertical pattern due to the imbalance between the radiating element and the ground plane. In this paper, we presented a printed monopole antenna with an omnidirectional horizontal pattern and a symmetric vertical pattern for 2.4㎓ ZigBee communication. A meander monopole radiator is employed for antenna size reduction. An omnidirectional horizontal pattern is obtained by placing the monopole at the center of the ground plane, while a symmetric vertical pattern is realized by adjusting the ground plane size. Measurements show that the proposed antenna has favorable characteristics such as a 2.98㏈i gain, a 560㎒ bandwidth, an omnidirectional horizontal pattern, and a symmetric vertical pattern with a 82.5° beamwidth.