eCite Digital Repository
A wide-band, active antenna system for long wavelength radio astronomy
Citation
Hicks, BC and Paravastu-Dalal, N and Stewart, KP and Erickson, WC and Ray, PS and Kassim, NE and Burns, S and Clarke, T and Schmitt, H and Craig, J and Hartman, J and Weiler, KW, A wide-band, active antenna system for long wavelength radio astronomy, Publications of the Astronomical Society of the Pacific, 124, (920) pp. 1090-1104. ISSN 0004-6280 (2012) [Refereed Article]
Copyright Statement
Copyright 2012 The Astronomical Society of the Pacific
DOI: doi:10.1086/668121
Abstract
We describe an "active" antenna system for HF/VHF (long wavelength) radio astronomy that has been successfully deployed 256-fold as the first station (LWA1) of the planned Long Wavelength Array. The antenna system, consisting of crossed dipoles, an active balun/preamp, a support structure, and a ground screen has been shown to successfully operate over at least the band from 20 MHz (15 m wavelength) to 80 MHz (3.75 m wave- length) with a noise figure that is at least 6 dB better than the Galactic background emission-noise temperature over that band. Thus, we met the goal to design and construct a compact, inexpensive, rugged, and easily assembled antenna system that can be deployed many-fold to form numerous large individual "stations" for the purpose of building a large, long wavelength synthesis array telescope for radio astronomical and ionospheric observations.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | astronomical Instrumentation |
Research Division: | Physical Sciences |
Research Group: | Astronomical sciences |
Research Field: | Astronomical instrumentation |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the physical sciences |
UTAS Author: | Erickson, WC (Professor William Erickson) |
ID Code: | 83495 |
Year Published: | 2012 |
Web of Science® Times Cited: | 25 |
Deposited By: | Mathematics and Physics |
Deposited On: | 2013-03-15 |
Last Modified: | 2013-07-24 |
Downloads: | 0 |
Repository Staff Only: item control page