Proceedings of the Korean Institute of Information and Commucation Sciences Conference (한국정보통신학회:학술대회논문집)
- 2007.06a
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- Pages.565-568
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- 2007
The considerations of the characteristics of Broadband Probe for Near Field Measurements
근접전계 측정을 위한 광대역 프로브의 특성에 대한 고찰
- Moon, Jung-Ick (Electronics and Telecommunications Research Institute)
- 문정익 (한국전자통신연구원)
- Published : 2007.06.01
Abstract
In this paper, 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. 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. The performance of this probe was verified using the measured results and is in good agreement with the simulated results.
본 논문에서는 안테나 근역장 측정의 광대역성을 위해 이중리지 도파관 프로브를 설계하고 제작한 결과를 보여주고 있다. 광대역 임피던스 정합을 위해 구형 도파관내에 테이퍼 리지와 도파관 천이기를 사용하였다. 본 프로브는 정재파비 3.0이하에서 약 123%(4.17:1)정도의 광대역 특성을 가지고 있으며 방사이득은