Tx-Rx Lens-Based Satellite-on-the-Move Ka-Band Antenna

被引：22

作者：

Silva, Joana S. ^{[1
,2
]}

Lima, Eduardo B. ^{[1
]}

Costa, Jorge R. ^{[1
,3
]}

Fernandes, Carlos A. ^{[1
]}

Mosig, Juan R. ^{[2
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Inst Telecomunicaoes, P-1049001 Lisbon, Portugal

[2] Ecole Polytech Fed Lausanne, Lab Electromagnet & Acoust, CH-1015 Lausanne, Switzerland

[3] ISCTE Inst Univ Lisboa, Dept Ciencias & Tecnol Informacao, P-1049001 Lisbon, Portugal

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

关键词：

Ka-band; low-cost; mechanical beam-steering; satellite communications; shaped dielectric lens; wideband feed;

D O I：

10.1109/LAWP.2015.2409316

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 simple low-cost mobile ground terminal antenna for Ka-band satellite communications is presented. The antenna is composed of a shaped dielectric lens which tilts and rotates in front of a feed to direct the beam. The wideband feed system is composed of a quad-ridged horn with a slant aperture and a coaxial-to-quad-ridged circular waveguide transition. The lens allows simple mechanical beam steering from 0 to 65 in relation to the zenith and 360 in azimuth by rotating both the lens and the feed slanted aperture. Performance measurements of a manufactured prototype prove the beam tilting capabilities in elevation with a maximum gain of 22 dBi and scan loss below 3 dB at 20 GHz and 24 dBi gain with less than 4.5 dB scan loss at 30 GHz.

引用

页码：1408 / 1411

页数：4

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