상세정보
학술지
The Design of Broadband Probe for Efficient Near Field Measurements
- 발행일
- 200709
- 출처
- IEEE Antennas and Wireless Propagation Letters, v.6, pp.440-443
- ISSN
- 1536-1225
- 출판사
- IEEE
- 협약과제
- 07ZR1100, 안테나 측정 시스템 고도화 기술개발, 윤재훈
- 초록
- In this letter, we designed and fabricated a broadband probe with a double-ridged waveguide for broadband near-field measurements. An exponentially tapered ridge in the rectangular waveguide and a novel waveguide transition were used for broadband impedance matching and suppression of higher order modes. The probe has broadband characteristics and its measured impedance bandwidth is approximately 123% (4.17:1) in the range 12.0-50 GHz for standing wave ratios (SWR) < 3.0. The peak radiation gain range and nominal radar cross-section (RCS) are 5.7-14.3 dBi and -30 dBsm, respectively. The performance of this probe was verified using the measured results and is in good agreement with the simulated results. © 2007 IEEE.
- KSP 제안 키워드
- Measured impedance, Ridged waveguide, Standing Wave, Waveguide transition, broadband impedance matching, gain range, higher-order modes, impedance bandwidth, near-field measurements, radar cross section, rectangular waveguide