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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 571 - 580 (10page)
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초록· 키워드
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The design of a slot-coupled directional coupler and a slot-coupled crossover for use in a switched beamforming network operating over wideband has been presented and discussed. In order to achieve wideband characteristics, the coupler and the crossover use slot-coupled microstrip transmission line (MTL) technology. Since the slot-coupled components have a structure in which the two signal lines on the top and bottom side are coupled to each other through the rectangular slot on the common ground plane, the amount of the combined signal is determined by the width of the slot, the width of the line and the height of the substrate. The width of the slot should be set to be wider than the width of signal line to induce proper coupling, and the width of the slot should be about 1.5 times to the width of the signal line. It can be seen that the coupling coefficient increases as the ratio of the width of the line to the height of the substrate increases, which means that the amount of the signal coupled to the output port increases as the width of the line increases. The proposed coupler and the crossover have been obtained high performance of 3±0.5dB coupling, 90±1° phase difference, and 0.5dB coupling and 45±3.5° phase shift in the operating frequency band, respectively. In addition, they have been implemented on the double-layered MTL in a small size and without intersecting lines on microstrip substrate.
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참고문헌 (15)
참고문헌 신청
A. A. M. Ali / 2011 / Design and implementation of two-layer compact wideband butler matrices in SIW technology for Ku-band applications / IEEE Transactions on Antennas Prop
A. M. Martir / 2014 / Wideband slot-coupled butler matrix / IEEE Microwave and Wireless Components Letters 24 (12) : 848 ~ 850
A. Talbi / 2013 / A compact 4×4 butler matrix for UWB applications / Proc. 2013 IEEE Antennas and Propagation Society Int. Symposium(APSURSI) : 1010 ~ 1011
C. J. Chen / 2010 / Design of a 60-GHz substrate integrated waveguide butler matrix?A systematic approach / IEEE Trans. Microwave Theory and Technology 58 (7) : 1724 ~ 1733
D. H. Lee / 2017 / Broadband 44butler matrix with multilayer slot-coupled microstrip transmission lines / International Conference on ELectronics, Information, and Communication (
A. M. Martir / 2014 / Wideband slot-coupled butler matrix / IEEE Microwave and Wireless Components Letters 24 (12) : 848 ~ 850
A. Talbi / 2013 / A compact 4×4 butler matrix for UWB applications / Proc. 2013 IEEE Antennas and Propagation Society Int. Symposium(APSURSI) : 1010 ~ 1011
C. J. Chen / 2010 / Design of a 60-GHz substrate integrated waveguide butler matrix?A systematic approach / IEEE Trans. Microwave Theory and Technology 58 (7) : 1724 ~ 1733
D. H. Lee / 2017 / Broadband 44butler matrix with multilayer slot-coupled microstrip transmission lines / International Conference on ELectronics, Information, and Communication (
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