A Dual-Polarized 2-18-GHz Vivaldi Array for Airborne Radar Measurements of Snow

被引：96

作者：

Yan, Jie-Bang ^{[1
]}

Gogineni, Sivaprasad ^{[1
]}

Camps-Raga, Bruno ^{[1
]}

Brozena, John ^{[2
]}

机构：

[1] Univ Kansas, Ctr Remote Sensing Ice Sheets CReSIS, Lawrence, KS 66045 USA

[2] Naval Res Lab, Marine Phys Branch, Washington, DC 20375 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 02期

关键词：

Airborne radar; phased array; snow backscattering; ultrawideband array; Vivaldi; BAND;

D O I：

10.1109/TAP.2015.2506734

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 communication presents the experimental results of a ultrawideband 2-18-GHz dual-polarized Vivaldi antenna array for airborne radar measurements of snow. The antenna design is based on the previously reported all-metal flared-notch array by Kindt and Pickles for operation over the frequency range 0.7-9 GHz. An antenna array prototype consisting of 8 x 8 active dual-polarized elements was fabricated with precise aluminum machining and tested in the anechoic chamber. Beamsteering upto 30 degrees was experimental demonstrated from 2 to 18 GHz. The measurement results are in a good agreement with the full-wave simulation results in both polarization configurations. Preliminary sample results from data collected using the Vivaldi array are also presented. The antenna array enables full polarimetric measurements of snow-over-sea-ice for estimating the snow-water-equivalent (SWE), as well as fine-resolution mapping of snow-air and snow-ice interfaces for estimating thickness.

引用

页码：781 / U544

页数：5

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