Tuning Method for a New Electrically Small Antenna With Low Q

被引：16

作者：

Adams, Jacob J. ^{[1
]}

Bernhard, Jennifer T. ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷

基金：

美国国家科学基金会;

关键词：

Bandwidth; electrically small antenna; helical antenna; Q; spherical antenna; RADIATION Q; LIMITS;

D O I：

10.1109/LAWP.2009.2015437

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：

We theoretically describe and experimentally demonstrate a new class of electrically small spherical antennas with near-minimum radiation. The antenna operates by supporting the TM(10) spherical mode and minimizing excitation of higher order modes. The antenna compares favorably to existing electrically small antennas and can be easily designed for any frequency or with any electrical size. The antenna can be matched without an external network using methods described in this work. Measurements of two antennas of different electrical sizes are presented to demonstrate the tunability of the structure.

引用

页码：303 / 306

页数：4

共 12 条

[1]

ADAMS J, 2008, P IEEE POW ENG SOC G, P1

[2]

Adams J.J., 2008, Proc. 2008 Antenna Applications Symp, P165

[3]

[Anonymous], 2008, HFSS VER 11

[4]

Best S.R., 2007, Antenna Appl. Symp, P193

[5] Low Q electrically small linear and elliptical polarized spherical dipole antennas [J].

Best, SR .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2005, 53 (03) :1047-1053

[6] The radiation properties of electrically small folded spherical helix antennas [J].

Best, SR .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2004, 52 (04) :953-960

[7] PHYSICAL LIMITATIONS OF OMNI-DIRECTIONAL ANTENNAS [J].

CHU, LJ .

JOURNAL OF APPLIED PHYSICS, 1948, 19 (12) :1163-1175

[8]

FOLTZ HD, 1999, P IEEE ANT PROP INT, V4, P2702

[9]

MCKINZIE WE, 1997, P IEEE INT S ANT PRO, V1, P542

[10] A re-examination of the fundamental limits on the radiation Q of electrically small antennas [J].

McLean, JS .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1996, 44 (05) :672-676

← 1 2 →