Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2014.25.9.879

Three Axis Isotropic Field Strength Measuring Antenna  

Choi, Suk-Hwan (Microwave Technologies Group)
Kim, Dong-Seok (Microwave Technologies Group)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.9, 2014 , pp. 879-885 More about this Journal
Abstract
In this paper, we designed and fabricated wideband 3-axis isotropic antenna for the Electro-Magnetic Fields(EMFs) measurement. Each part of proposed 3-axis antenna has isotropic characteristics and arbitrary axis of proposed 3-axis antenna could be selectable using RF switch. Also, a resistor was inserted in each axis of proposed 3-axis antenna for improving antenna gain and noise suppression characteristics, and port impedance of each dipole antenna were matched by balun. For the performance verification of antenna, GTEM Cell which generates standard electromagnetic field was used for the derivation of antenna factor and receiver sensitivity. As a result, fabricated 3-axis isotropic antenna has receiver sensitivity of 0.12~4.2 mV/m and typical VSWR of 3.3:1 within a wide operation frequency range from 0.03 MHz to 3 GHz.
Keywords
EMF Measurement; Isotropic Antenna; GTEM Cell; Receiving Sensitivity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 박정욱, "전자파에 대한 인체보호 정책 및 연구동향", 방송통신전파저널, 53, pp. 20-29, 2012년 12월.
2 박병권, "EMC 측정용 도선형 바이코니컬 안테나의 설계.제작 및 특성 측정", 전자공학회논문지, 38(4), pp. 93-101, 2001년 12월.
3 조원서, 황호정 "30 MHz에서 300 MHz 대역의 전자파장해 측정용 광대역 기준 안테나", 한국통신학회지, 25(3), pp. 413-423, 2000년 3월.
4 Kangwook Kim, Waymond R. Scott, Jr., "A resistive linear antenna for ground-penetrating radars", SPIE Proceedings, vol. 5415, pp. 359-370, 2004.
5 Jun-Hwa Oh, "Characterization of a broadband reactively and resistively loaded antenna", Department of Electrical and Electronic Engineering, Yonsei University, Sep. 2008.
6 Ping Hui, "Application of GTEM Cells to wireless communication transceiver designs", Microwave Journal, vol. 46, issue 9, p. 168, Sep. 2003.
7 James McLean, Robert Sutton, and Rob Hoffman, "Interpreting antenna performance parameters for EMC applications", TDK RF Solutions Inc., pp. 18-26, 2004.