이중 대역저지 특성을 가지는 UWB 안테나 설계 및 구현
Design and Implementation of UWB Antenna with Dual Band Rejection Characteristics
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초록
이중 대역저지 특성을 가지는 UWB(Ultra Wide Band) 안테나를 설계 및 구현하였다. 슬롯을 포함한 평면 방사 패치, 스트립선로 양쪽의 기생소자와 아랫면의 접지면으로 제안된 안테나가 구성되어있다. 평면 방사 패치 내에 있는 슬롯과 기생소자가 각각 해당 대역을 저지한다. 슬롯은 WiMAX(World interoperability for Microwave Access, 3.30∼3.70 GHz) 대역을, 기생소자는 X-Band(7.25∼8.395 GHz) 대역을 저지하는데 각각 기여한다. 제안된 안테나의 설계하고 성능을 평가하는데 Ansoft의 HFSS(High Frequency Structure Simulator)가 사용되었다. 전산모의실험 결과는 저지 대역인 3.30∼3.86 GHz, 7.21∼8.39 GHz를 제외한 구간에서 VSWR(Voltage Standing Wave Ratio)는 2.0 이하를 보였다. 구현된 안테나의 VSWR 측정 결과는 저지 대역인 3.25∼3.71 GHz, 7.25∼8.46 GHz를 제외한 3.10∼10.60 GHz 구간에서 VSWR 값이 2.0 이하로 나타났다.
Abstract
An UWB(Ultra Wide Band) antenna with band rejection characteristics is designed and implemented. A planar radiation patch with slot, parasitic elements on both sides of strip and ground plane on back side consist the proposed antenna. The slot in the radiation patch and parasitic elements contribute corresponding bands rejection characteristics. The slot contributes for WiMAX(World interoperability for Microwave Access, 3.30∼3.70 GHz) band rejection and parasitic elements contribute for X-Band(7.25∼8.395 GHz) rejection. Ansoft's HFSS(High Frequency Structure Simulator) was used to design the proposed antenna and performance simulations. Simulation result showed VSWR(Voltage Standing Wave Ratio) less than 2.0 for UWB band except for dual rejection bands of 3.30∼3.86 GHz and 7.21∼8.39 GHz. And VSWR measurement result for the implemented antenna shows less than 2.0 for 3.10∼10.60 GHz band except dual rejection bands of 3.25∼3.71 GHz and 7.25∼8.46 GHz.
참고문헌 (12)
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