DocumentCode :
1933012
Title :
A dual-band compact L-Quad antenna array for radio localization
Author :
Pralon, Mariana G. ; Popugaev, Alexander ; Schulz, Dominik ; Hein, Matthias A. ; Thoma, Reiner S.
Author_Institution :
Electron. Meas. Res. Lab., Ilmenau Univ. of Technol., Ilmenau, Germany
fYear :
2015
fDate :
13-17 April 2015
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents a dual-band compact antenna array for radio localization. The proposed antenna includes two single-band L-Quad subarrays (1710 - 1785 MHz and 2400 - 2480 MHz), each of them comprises three full-polarimetric antennas arranged in an equilateral triangle. One of the main advantages of the antenna investigated is the feature of having two polarizations. With it, it is possible to eliminate some errors and improve the algorithm for direction finding. The angular field-of-view of the array is approximately ±60°. The radio emitter localization is achieved in terms of Direction of Arrival (DoA) estimation and the figure of merit that this work focuses on is the Cramér-Rao Lower Bound (CRLB). This paper addresses mutual coupling (with the aim of designing compact arrays) via an eigen-analysis in which a modal decomposition is performed and modal radiation efficiencies are computed. Results for the CRLB and the eigen-efficiencies demonstrate the performance of the antenna both in terms of direction finding and mutual coupling. Finally, a comparison is drawn between the six-element dual-band antenna array and a six-element single-band antenna array.
Keywords :
antenna arrays; cognitive radio; direction-of-arrival estimation; eigenvalues and eigenfunctions; Cramer-Rao lower bound; angular field-of-view; direction finding; direction of arrival estimation; dual-band compact L-quad antenna array; eigen-analysis; equilateral triangle; full-polarimetric antennas; mutual coupling; radio emitter localization; radio localization; six-element dual-band antenna array; six-element single-band antenna array; Antenna arrays; Arrays; Couplings; Direction-of-arrival estimation; Directive antennas; Dual band; Cramér-Rao lower bound; compact arrays; direction of arrival estimation; multiband antenna; mutual coupling; radio localization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
Type :
conf
Filename :
7228736
Link To Document :
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