A Low Side Lobe Level Parabolic Antenna for Meteorological Applications

被引：1

作者：

Eszes, A. ^{[1
,2
]}

Szabo, Zs. ^{[1
]}

Ladanyi-Turoczy, B. ^{[2
]}

Kalacska, I. ^{[2
]}

机构：

[1] Pazmany Peter Catholic Univ, Fac Informat Technol & Bion, Budapest, Hungary

[2] Grante Antenna Dev & Prod Co, Esztergom, Hungary

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2024年 / 115卷

基金：

芬兰科学院;

关键词：

HAT FEED; SURFACES; SOFT;

D O I：

10.2528/PIERL23091206

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 novel corrugated subreflector is developed to achieve sufficient side lobe level suppression for antenna systems used in meteorological applications. The subreflector operates at 9.41 GHz, with a 60 MHz bandwidth and an efficiency of more than 70%. Its structure is rotational symmetric and is suitable for parabolic antenna applications. It can be utilized in single-polarized or polarimetric radar systems. The pattern-forming property of the subreflector is achieved with corrugations of different depths. Analytical design formulas have been deduced by solving the aperture integral. The analytical formulas provide the initial geometrical configuration and the reference illumination pattern in the objective function to which full-wave electromagnetic optimizations are performed to obtain the final corrugation depths. The subreflector has been manufactured with CNC machining. The radiation characteristics are measured, and for both polarizations, suppression of -28 dB side lobe level has been achieved with a 1.2 m diameter main reflector.

引用

页码：91 / 98

页数：8

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