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Design and Fabrication of Reflective Array Type Wideband SAW Dispersive Delay Line
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  • Design and Fabrication of Reflective Array Type Wideband SAW Dispersive Delay Line
  • Design and Fabrication of Reflective Array Type Wideband SAW Dispersive Delay Line
저자명
Choi. Jun-Ho,Yang. Jong-Won,Nah. Sun-Phil,Jang. Won
간행물명
Journal of the Korea Electromagnetic Engineering Society
권/호정보
2006년|6권 2호|pp.110-116 (7 pages)
발행정보
한국전자파학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

A reflective array type surface acoustic wave(SAW) dispersive delay line(DDL) with high time-bandwidth at the V/UHF-band is designed and fabricated for compressive receiver applications. This type of the SAW DDL has the properties of the relative bandwidth of 20 %, the time delay of 49.89 usec, the insertion loss of 38.5 dB and the side lobe rejection of 39 dB. In comparison with a commercial SAW DDL, the insertion loss, amplitude ripple and side lobe rejection are improved by $1.5dB{pm}0.6dB$ and 4 dB respectively. Using the fabricated SAW DDL, the prototype of the compressive receiver is developed. It is composed of RF converter, fast tunable LO, chirp LO, A/D converter, signal processing unit and control unit. This prototype system shows a fine frequency resolution of below 30 kHz with high scan rate.