Examination of near-field vehicular antenna coupling

Author

Levin, R.J. ; Wheeler, M.L.

Author_Institution

Georgia Tech Res. Inst., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

1993

fDate

9-13 Aug 1993

Firstpage

73

Lastpage

77

Abstract

The authors explore the limitations of using the far-field antenna coupling equation to predict the coupling between two VHF (30 to 88 MHz) antennas for separation distances as small as 0.05 wavelengths. Results of finite ground plane and scale model antenna coupling measurements conducted in an anechoic chamber were compared to antenna coupling values calculated with the far-field antenna coupling equation. The results indicate that the far-field dipole coupling equation can be used to predict the coupling (+2/-3 dB) between two low-gain 0.25-wavelength monopole antennas mounted on a flat plate for close spacings of 0.4 to 2.5 wavelengths

Keywords

anechoic chambers; antenna radiation patterns; earthing; mobile antennas; monopole antennas; 30 to 88 MHz; VHF antennas; anechoic chamber; antenna coupling measurements; army vehicle; far-field antenna coupling equation; far-field dipole coupling equation; finite ground plane; flat plate; low gain antenna; near-field vehicular antenna coupling; quarter wavelength monopole antenna; scale model; separation distances; Anechoic chambers; Antenna measurements; Connectors; Electromagnetic coupling; Equations; Frequency; Intelligent vehicles; Receiving antennas; Testing; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1993. Symposium Record., 1993 IEEE International Symposium on

Conference_Location

Dallas, TX

Print_ISBN

0-7803-1304-6

Type

conf

DOI

10.1109/ISEMC.1993.473775

Filename

473775