CAD for Dual-Band Polarizers in Corrugated Rectangular Waveguide

被引：7

作者：

Leal-Sevillano, Carlos A. ^{[1
]}

Montejo-Garai, Jose R. ^{[1
]}

Rebollar, Jesus M. ^{[1
]}

Ruiz-Cruz, Jorge A. ^{[2
]}

机构：

[1] Univ Politecn Madrid, Dept Electromagnestismo & Teoria Circuitos, Escuela Tecn Super Ingenieros Telecomunicac, Ave Compluense 30, E-28040 Madrid, Spain

[2] Univ Autonoma Madrid, Escuela Politecn Super, E-28049 Madrid, Spain

来源：

2011 41ST EUROPEAN MICROWAVE CONFERENCE | 2011年

关键词：

Waveguide polarizers; dual-band; corrugated waveguide; Mode-Matching; optimization; FIELD-THEORY DESIGN; SEPTUM;

D O I：

10.23919/EuMC.2011.6101919

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：

Waveguide polarizers are essential devices in feeders for radio transmission systems with circular polarization. In this paper two different dual-band polarizers are designed and compared. The structure of both polarizers is based on the classical corrugated rectangular waveguide. This structure can be analyzed very efficiently like an H-plane and an E-plane problem. The Mode-Matching technique, in combination with global search algorithms, is used for the full-wave analysis and optimization of the polarizers. In the first polarizer, the height of the corrugations is designed according to a taper-type shape. For the second polarizer, no restrictions in the height of the corrugations are imposed and all the dimensions are optimized. The performance of both polarizers is compared, showing certain improvement in terms of polarization purity for the second one.

引用

页码：822 / 825

页数：4

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