Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2012.23.11.1217

Antenna Gain Measurement in Time Domain  

Park, Jungkuy (National Radio Research Agency of KCC)
Kim, Woo-Nyun (National Radio Research Agency of KCC)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.11, 2012 , pp. 1217-1227 More about this Journal
Abstract
There are several antenna calibration methods, so-called 3-Antenna Method, Standard Site Method, and Standard Antenna Method which measure the antenna gains or antenna factors. These methods yield the free space or quasi free space antenna gains in only the frequency domain. In this paper, an antenna calibration method using the time domain in the open area test site is discussed. The reflected waves due to the ground are traced in the time domain. After they are removed by the time gating function of network analyzer, the free space transmission coefficient $S_{21}$ is extracted. Such a way is applied to the broad band horn antenna ranging 1 GHz to 18 GHz, and the free space gains are obtained by Friis transmission equation. The method is checked by Standard Site Method in open area test site. The results show comparatively good agreement except for 18 GHz.
Keywords
Time Domain; Frequency Domain; Gating; 3-Antenna Method; Standard Site Method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Albert A. Smith, "Standard site method for determining antenna factors", IEEE Trans. on Electromagnetic Compatibility, vol. EMC-24, no. 3, pp. 316-322, Aug. 1982.   DOI
2 Jungkuy Park, Dongchan Jeong, Hun Youn, Myoungwon Seo, Daehoon Yu, and Jaeman Ryoo. "3-Antenna height scanning average method of EMI antenna calibration", 2009 IEEE EMC Symposium, Aug. 2009.
3 Dennis Camell, Robert T. Johnk, David Novotny, and Chriss Grosvenor, "Free-space antenna factors through the use of time-domain signal processing", 2007 IEEE EMC Symposium, Aug. 2007.
4 Agieint, "Agilent time domain analysis using a network analyzer", Aplication Note 1287-12.
5 H. T. Friis, "A note a simple transmission formula", Proc IRE., pp. 254-256, May 1946.
6 ANSI C63.5-2006 American National Standard for Electromagnetic Compatibility- Radiated Emission Measurement in Electromagnetic interference(EMI) Control - Calibration of Antenna(9 kHz-40 GHz).
7 Constantine A. Balanis, Antenna Theory : Analysis and Design, pp. 296-303, Jonh Wiley & Sons, 1982.
8 R. E. Collin, Antennas and Radiowave Propagation, p. 293, McGraw-Hill Series in Electrical Engineering, 1985.