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A Slot Away Antenna with a Simple Feed Structure for Broadband Multimedia Wireless Applications  

성영제 (고려대학교 전파공학과)
이정수 (고려대학교 전파공학과)
오순수 (고려대학교 전파공학과)
문종용 (텔웨이브)
최원규 (한국전자통신연구원)
표철식 (한국전자통신연구원)
최재익 (한국전자통신연구원)
김영식 (고려대학교 전파공학과)
Publication Information
Abstract
We design and fabricate slot array antenna for BMWS(Broadband Multimedia Wireless System) applications. This paper presents a simple feed structure, which consists of two horns and a parallel-plate waveguide, because antennas operating at 40.5 GHz~43.5 GHz have considerable feeding losses. The simple feed structure has the advantages of high-efficiency and mass-production. The fabricated antenna has a gain of 25.8 dBi with a sidelobe level below -18 ㏈ and a 3 ㏈ beamwidth of approximately 3$^{\circ}$ in the E-plane. In case of H-plane, a 3 ㏈ beamwidth is 17$^{\circ}$ and a sidelobe level is suppressed to below -27 ㏈. The experimental results are in good agreement with the simulation results. The authors expect that narrow 3 ㏈ beamwidth is obtained by combining a few proposed slot array antennas in parallel.
Keywords
BMWS; Waveguide Arrays; Slotted Arrays;
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