DocumentCode
1682115
Title
Natural and metamaterial spiral antennas
Author
Nakano, H. ; Miyake, J. ; Oyama, M. ; Yamauchi, J.
Author_Institution
Grad. Sch. of Eng., Hosei Univ., Tokyo, Japan
fYear
2012
Firstpage
303
Lastpage
306
Abstract
A low-profile cavity-backed spiral antenna with an absorbing strip exhibits wideband radiation characteristics. An EBG reflector is useful in designing a small spiral for medium frequency bandwidth operation. A modified EBG reflector contributes to mitigation of the partial deterioration of the antenna characteristics in a low-profile equiangular spiral antenna. The circularly polarized radiation from a metamaterial spiral is left-handed at one frequency and right-handed at a different frequency.
Keywords
broadband antennas; metamaterial antennas; photonic band gap; polarisation; spiral antennas; EBG reflector; absorbing strip; cavity-backed spiral antenna; circularly polarized radiation; low-profile equiangular spiral antenna; metamaterial spiral antennas; partial deterioration; wideband radiation; Broadband antennas; Metamaterials; Periodic structures; Reflector antennas; Spirals;
fLanguage
English
Publisher
ieee
Conference_Titel
Antenna Technology (iWAT), 2012 IEEE International Workshop on
Conference_Location
Tucson, AZ
Print_ISBN
978-1-4673-0036-0
Type
conf
DOI
10.1109/IWAT.2012.6178648
Filename
6178648
Link To Document