DocumentCode :
540315
Title :
Optimization of diversity antenna directivities based on spherical mode expansion
Author :
Arai, Maki ; Iwabuchi, Masashi ; Sakaguchi, Kei ; Araki, Kiyomichi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
fYear :
2010
fDate :
7-10 Dec. 2010
Firstpage :
1577
Lastpage :
1580
Abstract :
This paper proposes a new approach for designing diversity antenna directivities based on spherical mode expansion. The antenna directivity is expanded by spherical wave functions and spherical mode coefficients. Spherical mode coefficients, which specify the antenna directivity, can be estimated from a given antenna volume and an angular profile of incident waves. In this paper, we derive the optimal antenna directivities for diversity system in order to minimize outage probability of combined channel gain in the given environment. The optimal antenna matched to a given propagation environment can be designed by using this approach.
Keywords :
MIMO communication; dipole antenna arrays; directive antennas; diversity reception; antenna volume; diversity antenna directivities; half-wave length dipole antenna array; multiple-input multiple-output system; optimal antenna directivities; spherical mode expansion; Antenna arrays; Correlation; Dipole antennas; Receiving antennas; Transmitting antennas; angular profile; antenna volume; directivity; diversity system; maximum ratio combining; spherical mode expansion;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
Type :
conf
Filename :
5728186
Link To Document :
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