DocumentCode
2979668
Title
Recent progress in antennas with an EBG reflector and antennas with periodically arrayed loops
Author
Nakano, H. ; Oyanagi, H. ; Miyake, J. ; Oishi, Y. ; Yamauchi, J.
Author_Institution
Coll. of Eng., Hosei Univ., Tokyo, Japan
fYear
2011
fDate
7-9 March 2011
Firstpage
98
Lastpage
101
Abstract
A low-profile curl antenna with an EBG reflector has a relatively wide input impedance bandwidth. Low-profile equiangular- and Archimedean-spiral antennas, each backed by an EBG reflector, have a wider input impedance bandwidth than the curl. A low-profile inverted F antenna above an EBG reflector radiates a tilted beam. An array composed of inverted F antennas combined with switching circuits has a beam that can be scanned. A layer of periodically arrayed loops transforms the axial beam of an antenna into a tilted beam with high directivity.
Keywords
antenna arrays; photonic band gap; reflector antennas; spiral antennas; switching circuits; Archimedean-spiral antenna; EBG reflector; arrayed loops transforms; impedance bandwidth; low-profile curl antenna; low-profile equiangular-antenna; low-profile inverted F antenna; switching circuit; tilted beam; Antenna arrays; Metamaterials; Periodic structures; Reflector antennas; Spirals;
fLanguage
English
Publisher
ieee
Conference_Titel
Antenna Technology (iWAT), 2011 International Workshop on
Conference_Location
Hong Kong
Print_ISBN
978-1-4244-9133-9
Type
conf
DOI
10.1109/IWAT.2011.5752378
Filename
5752378
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