논문 해외 국제전문학술지(SCI급) A cost-effective variable coupler with sliding printed circuit boards
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-01
- 저자명 이동호,김주성,이창석,이옥구
- 학술지명 International Journal of Microwave and Optical Technology
- 발행처명 International Academy of Microwave and Optical Technology (IAMOT)rawat@ee.unr.edu
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
홈페이지논문 초록 (Abstract)
A variable coupler has been designed and implemented utilizing two pieces of printed circuit boards (PCB) in edge-coupled configuration. The coupling amount is tuned by varying the spacing of two edge-coupled striplines. The proposed variable coupler by two sliding PCBs achieves 10 to 30 dB coupling with the spacing of 0.1 to 5.1 mm, while ensuring 50-Ω terminations at each port. The two PCBs have identical structures and dimensions, which are based on microstrip lines. Each PCB has been implemented with low-cost FR-4 dual-sided PCBs of which the thickness was 2.4 mm. The proposed coupling architecture with two flipped and overlapped PCBs provides a simple and intuitive implementation by having variable edge-coupled striplines.