Compact dual-polarized 1.2 - 10 GHz eleven feed by folding outer elements for large decade-bandwidth radio telescopes
Paper in proceedings, 2011
The Eleven antenna is a log-periodic folded-dipole-pair array which has two unique radiation characteristics: constant beamwidth and fixed phase center location over decade bandwidth. Therefore, the Eleven antenna is very suitable as a feed for reflector antennas. This paper presents a new compact design of 1.2 - 10 GHz Eleven antenna by folding down the outermost elements of the array. By doing so, it is possible to put the Eleven feed inside a compact cryostat, which is critical for applications in radio telescopes. The new compacted Eleven antenna has only 40% volume of the original standard Eleven antenna with similar performance. Simulations and measurements have verified the design and are presented in the paper.
Author
Jian Yang
Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas
Miroslav Pantaleev
Chalmers, Earth and Space Sciences, Onsala Space Observatory
Per-Simon Kildal
Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas
Leif Helldner
Chalmers, Earth and Space Sciences, Onsala Space Observatory
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
15223965 (ISSN)
843-846 5996406Areas of Advance
Information and Communication Technology
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/APS.2011.5996406
ISBN
978-142449563-4