Electromagnetic analysis of effective and apparent diversity gain of two parallel dipoles

Author

Kildal, Per-Simon ; Rosengren, Kent

Author_Institution

Dept. of Electromagn., Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

2

Issue

1

fYear

2003

fDate

6/25/1905 12:00:00 AM

Firstpage

9

Lastpage

13

Abstract

Two parallel dipoles are often used as a reference case for measuring diversity gain. The present paper shows how to calculate the radiation efficiency, effective diversity gain, and apparent diversity gain of two parallel dipoles and how they depend on dipole spacing. We treat several cases for different terminations of the neighboring dipole; open-circuited, short-circuited, and 50 /spl Omega/ termination. The results for 50 /spl Omega/ termination are verified by measurements of effective diversity gain in a reverberation chamber.

Keywords

UHF antennas; antenna theory; dipole antenna arrays; diversity reception; 900 MHz; apparent diversity gain; diversity reception; effective diversity gain; electromagnetic analysis; impedance matching; parallel dipoles; radiation efficiency; reverberation chamber; Antenna measurements; Diversity methods; Diversity reception; Electromagnetic analysis; Electromagnetic measurements; Gain measurement; Impedance; Polarization; Receiving antennas; Reverberation chamber;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2003.810768

Filename

1203841