Measurements of complex antenna factor by the near-field 3-antenna method

Author

Ishigami, Shinobu ; Iida, Hiroyuki ; Iwasaki, Takashi

Author_Institution

Dept. of Electron. Eng., Univ. of Electro-Commun., Tokyo, Japan

Volume

38

Issue

3

fYear

1996

fDate

8/1/1996 12:00:00 AM

Firstpage

424

Lastpage

432

Abstract

The near-field 3-antenna method for measuring the complex antenna factor (CAF) is proposed in order to reduce the effect of the measurement site and background noise. The transmission coefficients in the far-field region are calculated from those measured in the near-field and theoretically obtained near-field correction factors (NCF). The CAF of monopole antennas are measured using the proposed method in a frequency range up to 6 GHz. From the measurement results, the dependency of CAF values on the antenna distance is small. These results indicate that our theory including the NCF is applicable for the measurements of the CAF of simple-structure antennas

Keywords

antenna radiation patterns; antenna testing; microwave antennas; monopole antennas; antenna distance; background noise; complex antenna factor measurement; far-field region; frequency range; measurement results; measurement site; monopole antennas; near-field 3-antenna method; near-field correction factors; near-field measurement; simple structure antennas; transmission coefficients; Antenna measurements; Coupling circuits; Frequency domain analysis; Frequency measurement; Loaded antennas; Magnetic field measurement; Magnetic sensors; Noise measurement; Receiving antennas; Sensor phenomena and characterization;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.536072

Filename

536072