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Study of Time Domain Measurement and Analysis Technique Using Network Analyzer for UWB Antenna link Characterization

UWB 안테나 링크 특성화를 위한 네트워크 분석기를 이용한 시간영역 측정 및 분석기술 연구

  • Koh, Young-Mok (Department of Electronic Engineering, Kwangwoon University) ;
  • Kim, Jung-Min (Department of Electronic Engineering, Kwangwoon University) ;
  • Kim, Keun-Yong (Department of Electronic Engineering, Kwangwoon University) ;
  • Ra, Keuk-Hwan (Department of Electronic Engineering, Kwangwoon University)
  • Received : 2012.08.18
  • Published : 2012.10.25

Abstract

In this paper, we studied the time-domain measurement and analysis techniques using a network analyzer for characterization UWB antenna link radiating impulse signal. For this purpose, we developed the CZT(Chirp z-Transform) algorithm which has characterized zoom-in function and transformed the acquired data from network analyzer to time domain format. Using the CZT algorithm, we proves that it would be better efficient and more faster than the DFT for analyzing the waveform and also be able to zoom-in the arbitrary region.

본 논문에서는 임펄스 신호를 방사하는 UWB 안테나의 링크 특성을 분석하기 위해 주파수영역에서 안테나 특성을 측정하기 위해 사용하는 네트워크 분석기를 이용한 시간영역 측정 및 분석기술에 대해 연구하였다. 이를 위해 네트워크 분석기에서 획득한 데이터를 줌-인(Zoom-In)이 가능한 시간영역으로 변환하기 위한 CZT(Chirp z-Transform) 알고리즘을 개발하였다. 개발된 CZT 알고리즘을 이용하여 주파수영역에서 각 안테나 링크에 대한 파형분석을 통해 표준이산푸리에 변환(Discrete Fourier Transform)보다 고속으로 변환이 가능하고 임의의 원하는 구간을 줌-인 함으로서 효율적으로 파형분석이 가능함을 증명하였다.

Keywords

References

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