Evaluation of a Double-Shell Integrated Scanning Lens Antenna

被引：31

作者：

Costa, Jorge R. ^{[1
,2
]}

Silveirinha, Mario G. ^{[3
]}

Fernandes, Carlos A. ^{[1
]}

机构：

[1] Inst Telecomunicacoes, IST, P-1049001 Lisbon, Portugal

[2] Inst Super Ciencias Trabalho & Empresa, Dept Ciencias & Tecnol Informat, P-1649026 Lisbon, Portugal

[3] Univ Coimbra, Dept Elect Engn, Inst Telecomunicacoes, P-3030 Coimbra, Portugal

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2008年 / 7卷

关键词：

Integrated lens antennas; millimeter and submillimeter wave antennas; scanning antennas; shaped beam antennas;

D O I：

10.1109/LAWP.2008.2008403

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：

This letter presents the design and evaluation of a high dielectric constant double-material integrated lens antenna for multibeam or scanning applications. The lens is formed by two shaped embedded shells of different material permittivity to enhance both power transmission across the lens interfaces and the lens scanning characteristics over a broad frequency range, when the feeds are integrated at the lens base. Design is based on geometrical optics formulation and the lens performance is evaluated using the classic hybrid geometrical optics/physical optics approach (GO/PO). The proposed lens concept is experimentally validated with a fabricated MACOR (TM)/acrylic prototype, showing less than 1-dB scan loss up to +/- 20 degrees with Gaussicity better than 95% over 40% frequency band at millimeter waves.

引用

页码：781 / 784

页数：4

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