Low-Profile Dual Circularly Polarized Antenna Array for Satellite Communications in the X Band

被引：61

作者：

Garcia-Aguilar, Andres ^{[1
]}

Inclan-Alonso, Jose-Manuel ^{[1
]}

Vigil-Herrero, Lucia ^{[1
]}

Fernandez-Gonzalez, Jose-Manuel ^{[1
]}

Sierra-Perez, Manuel ^{[1
]}

机构：

[1] Univ Politecn Madrid, Radiat Grp, Tech Univ Madrid, E-28040 Madrid, Spain

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 05期

关键词：

Antenna arrays; dual-polarized antennas; microstrip antennas; satellite communication; BRANCH-LINE COUPLERS; MICROSTRIP; DESIGN;

D O I：

10.1109/TAP.2012.2189729

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 planar antenna is introduced that works as a portable system for X-band satellite communications. This antenna is low-profile and modular with dimensions of 40 x 40 x 2.5 cm.It is composed of a square array of 144 printed circuit elements that cover a wide bandwidth (14.7%) for transmission and reception along with dual and interchangeable circular polarization. A radiation efficiency above 50% is achieved by a low-loss stripline feeding network. This printed antenna has a 3 dB beamwidth of 5, a maximum gain of 26 dBi and an axial ratio under 1.9 dB over the entire frequency band. The complete design of the antenna is shown, and the measurements are compared with simulations to reveal very good agreement.

引用

页码：2276 / 2284

页数：9

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