The Puck Antenna: A Compact Design With Wideband, High-Gain Operation

被引：25

作者：

Al-Tarifi, Muhannad A. ^{[1
]}

Anagnostou, Dimitris E. ^{[2
]}

Amert, Anthony K. ^{[3
]}

Whites, Keith W. ^{[2
]}

机构：

[1] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA

[2] South Dakota Sch Mines & Technol, Dept Elect & Comp Engn, Rapid City, SD 57701 USA

[3] Osha Liang, Houston, TX 77010 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2015年 / 63卷 / 04期

基金：

美国国家科学基金会;

关键词：

Cavity resonators; compact antennas; dielectric slabs; directive antennas; electromagnetic diffraction; leaky-wave antennas (LWAs); partially reflecting surfaces (PRSs); LEAKY-WAVE ANTENNAS; CAVITY; RADIATION; SURFACES; ENHANCEMENT;

D O I：

10.1109/TAP.2015.2398461

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 develop a high-gain antenna with wideband operation and compact size by placing a small dielectric superstrate (puck) in front of the feeding antenna. The antenna performance is a combination of the leaky-wave effect, naturally existing in this type of antennas, and the edge diffraction effect occurring at the puck perimeter. Compared to the typical resonant cavity antenna utilizing a large superstrate, the proposed puck antenna has nearly four times enhanced performance (gain-bandwidth combination) while using a square puck of side slightly smaller than two wavelengths (at the design frequency). Further enhancement is achieved by making the puck circular in shape in order to add the diffracted fields in phase. The study is conducted through full-wave simulations and validated through measurements in the Ku band. The effect of puck misalignment is then discussed as a potential practical issue. Last, the ground plane is optimized for maximum antenna performance and relatively acceptable values of aperture efficiency (up to 51%).

引用

页码：1868 / 1873

页数：6

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