Wideband feeds for the upgraded GMRT

被引：3

作者：

Bandari, Hanumanth Rao ^{[1
]}

Sankarasubramanian, G. ^{[1
]}

Kumar, A. Praveen ^{[1
]}

机构：

[1] NCRA TIFR, GMRT Observ, Pune 411007, Maharashtra, India

来源：

RADIO AND ANTENNA DAYS OF THE INDIAN OCEAN (RADIO 2012) | 2013年 / 44卷

关键词：

ANTENNA;

D O I：

10.1088/1757-899X/44/1/012023

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 paper describes the existing feeds in use at the GMRT Observatory and details the ongoing development of next generation wideband feeds for the upgraded GMRT. The existing feeds include: feed with folded thick dipoles (for 150 MHz), dipole-disc feed (for 325 MHz), dual-band coaxial feed (for 233 MHZ and 610 MHz), and corrugated horn feed (for 1400-1450 MHz). The new broadband feeds covered in this paper are: cone-dipole feeds for 250-500 and 500-1000 MHz, wideband horn feed for 550-900 MHz, and dual ring feed for 130-260 MHz. Design techniques and performance results for these are described.

引用

页数：4