Characteristic-Mode-Based Improvement of Circularly Polarized U-Slot and E-Shaped Patch Antennas

被引：116

作者：

Chen, Yikai ^{[1
]}

Wang, Chao-Fu ^{[1
]}

机构：

[1] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2012年 / 11卷

关键词：

Characteristic modes; circular polarization; microstrip antennas; GENETIC ALGORITHM; DESIGN;

D O I：

10.1109/LAWP.2012.2231046

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：

Characteristic mode (CM) analysis is carried out to understand the underlying physics of two popular circularly polarized (CP) microstrip patch antennas, namely U-slot and E-shaped CP patch antennas, for achieving better performance. Modifications of these two CP antennas with optimal feed position and compact patch size are explicitly obtained through examining the CMs, modal significance, and characteristic angle. Compared to conventional designs, the two modified designs have better axial ratio (AR) and cross-polarization performance without introducing any additional design cost or complexity. It is also interesting to find that: 1) offset probe feed in CP U-slot patch antennas will provide excellent AR performance; 2) cutting off the redundant section from CP E-shaped patch antenna will yield low cross polarization and more compact configuration.

引用

页码：1474 / 1477

页数：4

共 11 条

[1]

[Anonymous], 2002, COMPACT BROADBAND MI

[2] The theory of characteristic modes revisited:: A contribution to the design of antennas for modern applications [J].

Cabedo-Fabres, Marta ;

Antonino-Daviu, Eva ;

Valero-Nogueira, Alejandro ;

Bataller, Miguel Ferrando .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2007, 49 (05) :52-68

[3] ELECTRICALLY LOADED YAGI-UDA ANTENNA OPTIMIZATIONS USING CHARACTERISTIC MODES AND DIFFERENTIAL EVOLUTION [J].

Chen, Y. ;

Wang, C. -F. .

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2012, 26 (8-9) :1018-1028

[4] Synthesis of Reactively Controlled Antenna Arrays Using Characteristic Modes and DE Algorithm [J].

Chen, Yikai ;

Wang, Chao-Fu .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2012, 11 :385-388

[5] THEORY OF CHARACTERISTIC MODES FOR CONDUCTING BODIES [J].

HARRINGTON, RF ;

MAUTZ, JR .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1971, AP19 (05) :622-+

[6] Antenna design with a mixed integer genetic algorithm [J].

Haupt, Randy L. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2007, 55 (03) :577-582

[7]

Khidre A, 2010, IEEE ANTENN PROPAG M, V52, P219, DOI 10.1109/MAP.2010.5687512

[8] Circularly polarized U-Slot antenna [J].

Tong, Kin-Fai ;

Wong, Ting-Pong .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2007, 55 (08) :2382-2385

[9] Analysis of Ultra-Wideband Printed Planar Quasi-Monopole Antennas Using the Theory of Characteristic Modes [J].

Wu, Weixia ;

Zhang, Y. P. .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2010, 52 (06) :67-77

[10] Wide-band E-shaped patch antennas for wireless communications [J].

Yang, F ;

Zhang, XX ;

Ye, XN ;

Rahmat-Samii, Y .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2001, 49 (07) :1094-1100

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