Time-Gating Method for V/UHF Antenna Pattern Measurement inside an Anechoic Chamber

作者：Tian Jin, Zhang Linxi, Nanjing Li, Chen Weijun · 年份：2008 · DOI：10.1109/icmmt.2008.4540561 · 被引用次数：6 · 研究领域：Electromagnetic Compatibility and Measurements、Microwave and Dielectric Measurement Techniques、Power Line Communications and Noise

Traditionally, the time-gating method (TGM) is helpful in improvement of ordinary antenna pattern measurement. But for a low frequency antenna under test (AUT), especially a narrow bandwidth AUT, even inside an anechoic chamber, the improvement may be very limited. This paper presents a method of bandwidth expanding for a FD measuring system, which can realize TGM with its fast frequency sweep function. By this means, the interference caused by multi-path reflection can be reduced effectively, and the pattern of V/UHF AUT obtained can be more precise. The results from simulation and experiment show the efficiency of this new method.