Broad-band antenna array with application to radio astronomy

Autor:	W. Cronyn, K. Neal, C. Rufenach
Rok vydání:	1973
Předmět:	Physics business.industry Loop antenna Antenna aperture Antenna measurement Condensed Matter Physics Antenna tuner law.invention Antenna array Passive radiator Optics law Physics::Accelerator Physics Dipole antenna Electrical and Electronic Engineering Antenna (radio) business
Zdroj:	IEEE Transactions on Antennas and Propagation. 21:697-700
ISSN:	0096-1973
DOI:	10.1109/tap.1973.1140558
Popis:	A broad-band antenna element and beam-forming matrix have been developed for reception of signals at 25-100 MHz. The element is a zig-zag log-periodic antenna with a nominal impedance of 430\Omega and a VSWR of less than 1.9. The matrix utilizes time-delay gradients to obtain frequency-independent beam positions and also allows several different beam positions to be monitored simultaneously. Observations of natural radio sources using a 16-element array have verified its usefulness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::341b28aa22081b440028bd0fe20f5335 https://doi.org/10.1109/tap.1973.1140558 Zobrazit plný text záznamu