A circular Eleven feed with significantly improved aperture efficiency over 1.3–14 GHz

Author

Yin, Jungang ; Yang, Jian ; Panteleev, Miroslav ; Helldner, Leif

Author_Institution

Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

fYear

2012

fDate

26-30 March 2012

Firstpage

2353

Lastpage

2356

Abstract

A new decade bandwidth circular Eleven feed for future radio telescope projects has been developed, with a significantly improved BOR₁ efficiency (therefore aperture efficiency). This Eleven feed is constructed of “circularly” curved folded dipoles on a flat printed circuit board (PCB), with the aim to make this antenna structure more rotationally symmetrical at a very low manufacture cost. The simulated results show that the BOR₁ efficiency of the circular Eleven feed achieves better than -1 dB over a decade bandwidth of 1.3-14 GHz, which is considered as a significant improvement for decade-bandwidth feed technology.

Keywords

UHF antennas; antenna feeds; printed circuits; radiotelescopes; BOR efficiency; PCB; antenna structure; aperture efficiency; bandwidth 1.3 GHz to 14 GHz; bandwidth circular eleven feed; circularly curved folded dipoles; decade-bandwidth feed technology; flat printed circuit board; radio telescope projects; very low manufacture cost; Antenna feeds; Antenna measurements; Apertures; Dipole antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6205966

Filename

6205966