DocumentCode
2140103
Title
A novel polygonal spiral antenna
Author
Rahman, Nahid ; Afsar, Mohammed ; Cheung, Rudolph
Author_Institution
Dept. of Electr. Eng., Tufts Univ., Medford, MA, USA
fYear
2012
fDate
8-14 July 2012
Firstpage
1
Lastpage
2
Abstract
In this paper, we present a novel 2-18 GHz polygonal spiral antenna that approximates a circular spiral in its highest frequencies and gradually transforms itself into a square spiral antenna at its lowest frequencies of operation. The design has successfully addressed the problem of high axial ratios associated with UWB rectangular spiral antenna systems. Our results demonstrate that the polygonal spiral antenna demonstrates excellent axial ratio and gain-bandwidth performance with ≤3 dB axial ratio over 93.5% of its operational bandwidth.
Keywords
UHF antennas; microwave antennas; spiral antennas; ultra wideband antennas; UWB rectangular spiral antenna systems; circular spiral; frequency 2 GHz to 18 GHz; gain-bandwidth performance; polygonal spiral antenna; square spiral antenna; Bandwidth; Gain; Microwave antennas; Spirals; Ultra wideband antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location
Chicago, IL
ISSN
1522-3965
Print_ISBN
978-1-4673-0461-0
Type
conf
DOI
10.1109/APS.2012.6348530
Filename
6348530
Link To Document