Termination-dependent diversity performance of coupled antennas: Network theory analysis

被引：102

作者：

Wallace, JW ^{[1
]}

Jensen, MA ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2004年 / 52卷 / 01期

基金：

美国国家科学基金会;

关键词：

antenna array mutual coupling; diversity methods; impedance matching;

D O I：

10.1109/TAP.2003.822444

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new analysis of mutually coupled diversity antenna systems is presented that includes the effects of coupling on the radiation pattern and received power. This analysis, based upon the network scattering parameters, makes use of the singular value decomposition to both specify the characteristics of and analyze terminated antenna networks. The approach facilitates a simplified proof of the multiport conjugate matching condition as well as development of expressions for diversity performance as a function of various impedance terminations. Application of the analysis to coupled dipole antennas characterized using full-wave electromagnetic analysis leads to a comprehensive examination of the diversity performance obtainable for such antennas under different termination conditions. The results from this paper reveal that for closely spaced antennas, the termination can play a noticeable role in determining the diversity gain offered by coupled antennas.

引用

页码：98 / 105

页数：8

共 23 条

[11] Measurement and evaluation of multi-antenna handsets in indoor mobile communication [J].

Norklkit, O ;

Teal, PD ;

Vaughan, RG .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2001, 49 (03) :429-437

[12]

Pozar M. D., 1998, MICROWAVE ENG

[13]

Rockway J.W., 1988, MININEC SYSTEM MICRO

[14] A STATISTICAL-MODEL FOR INDOOR MULTIPATH PROPAGATION [J].

SALEH, AAM ;

VALENZUELA, RA .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1987, 5 (02) :128-137

[15] Advanced design of phased-array beam-forming networks [J].

Speciale, RA .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 1996, 38 (04) :22-34

[16] Modeling the statistical time and angle of arrival characteristics of an indoor multipath channel [J].

Spencer, QH ;

Jeffs, BD ;

Jensen, MA ;

Swindlehurst, AL .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2000, 18 (03) :347-360

[17] Mutual coupling effects on the capacity of multielement antenna systems [J].

Svantesson, T ;

Ranheim, A .

2001 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-VI, PROCEEDINGS: VOL I: SPEECH PROCESSING 1; VOL II: SPEECH PROCESSING 2 IND TECHNOL TRACK DESIGN & IMPLEMENTATION OF SIGNAL PROCESSING SYSTEMS NEURALNETWORKS FOR SIGNAL PROCESSING; VOL III: IMAGE & MULTIDIMENSIONAL SIGNAL PROCESSING MULTIMEDIA SIGNAL PROCESSING, 2001, :2485-2488

[18]

Taflove A., 1995, Computational Electrodynamics: the Finite-Difference Time-Domain Method

[19]

TRUEMAN CW, 1992, APPL COMPUT ELECTROM, V5, P17

[20] CLOSELY SPACED MONOPOLES FOR MOBILE COMMUNICATIONS [J].

VAUGHAN, RG ;

SCOTT, NL .

RADIO SCIENCE, 1993, 28 (06) :1259-1266

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