Measurement and evaluation of multi-antenna handsets in indoor mobile communication

Author

Nørklit, Ole ; Teal, Paul D. ; Vaughan, Rodney G.

Author_Institution

New Zealand Inst. for Ind. Res., Lower Hutt, New Zealand

Volume

49

Issue

3

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

429

Lastpage

437

Abstract

A method for evaluating antenna diversity systems is presented with an example of a handset using up to four antennas in indoor mobile communication. The method includes a “two-at-a-time” measurement test setup that uses maximum likelihood estimation of the covariance matrix and compensation for the imperfect match, which typically occurs during the design and evaluation process for compact antennas. The diversity performance of the antenna system can be presented as an effective order of diversity, which is the equivalent number of equal power, uncorrelated diversity branches for the same diversity gain at a given probability

Keywords

UHF antennas; antenna arrays; antenna testing; compensation; covariance matrices; diversity reception; indoor radio; land mobile radio; maximum likelihood estimation; mobile antennas; 1.9 GHz; antenna diversity systems; compact antennas; compensation; covariance matrix; diversity gain; diversity performance; equal power uncorrelated diversity branches; imperfect match; indoor mobile communication; maximum likelihood estimation; multi-antenna handsets; two-at-a-time measurement test setup; Antenna measurements; Antennas and propagation; Array signal processing; Covariance matrix; Decorrelation; Diversity methods; Fading; Mobile antennas; Mobile communication; Telephone sets;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.918617

Filename

918617