DocumentCode
251005
Title
Layered Butler matrix circuit for vertical multi beam of cellular base station antenna
Author
Kozuki, Yoshihiro ; Arai, Hiroyuki
Author_Institution
Grad. Sch. of Eng., Yokohama Nat. Univ., Yokohama, Japan
fYear
2014
fDate
2-5 Dec. 2014
Firstpage
561
Lastpage
562
Abstract
To enhance the channel capacity of cellular systems, we need to reduce the size of coverage area for small cell, provided by sectorization in vertical plane. The multi-sector in vertical plane is given by multi-beam antenna fed by Butler matrix. This paper proposes a layered butler matrix circuit for multi beam antenna feeding system and demonstrates how to use in cellular base station antennas.
Keywords
antenna feeds; cellular radio; matrix algebra; multibeam antennas; wireless channels; cellular base station antenna; cellular system channel capacity; layered butler matrix circuit; vertical multibeam antenna feeding system; vertical plane sectorization; Antenna radiation patterns; Base stations; Butler matrices; Proposals; Substrates; Surface impedance; Base station; Butler matrix;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location
Kaohsiung
Type
conf
DOI
10.1109/ISANP.2014.7026775
Filename
7026775
Link To Document