Spatial diversity performance of printed dual band antennas for WLAN operations

Author

Mavridis, G.A. ; Karapistoli, E.D. ; Christodoulou, C.G. ; Chryssomallis, M.T.

Author_Institution

Dept. of Electr. & Comput. Eng., Democritus Univ. of Thrace, Xanthi, Greece

Volume

1A

fYear

2005

fDate

3-8 July 2005

Firstpage

491

Abstract

Dual band monopole diversity antennas for mobile terminals operating in the ISM band under the linear switched combining method are presented. Diversity performance is evaluated by means of the envelope correlation coefficient, the mean effective gain and the effective diversity gain of the two antennas. Geometries of two and three-branch systems are proposed and investigated. Simulation results include the mentioned key indicators of diversity performance as well as radiation patterns and S-parameters. The proposed configurations achieve satisfactory diversity performance and favorable characteristics such as reduced size, large bandwidth, and different radiation pattern complementarity.

Keywords

S-parameters; antenna radiation patterns; diversity reception; microstrip antennas; mobile antennas; monopole antennas; multifrequency antennas; wireless LAN; ISM band; S-parameters; WLAN; bandwidth; effective diversity gain; envelope correlation coefficient; linear switched combining method; mean effective gain; mobile terminals; monopole diversity antennas; printed dual band antennas; radiation pattern complementarity; reduced size; spatial diversity performance; three-branch systems; two-branch systems; Antenna radiation patterns; Bandwidth; Diversity methods; Diversity reception; Dual band; Geometry; Mobile antennas; Performance gain; Scattering parameters; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1551361

Filename

1551361