Title :
Mutual coupling compensation in uniform circular arrays with center element using a coupling matrix based on phase modes
Author_Institution :
Dept. of Inf. Technol., Ghent Univ.
Abstract :
By expanding the radiation characteristics into phase modes, a coupling matrix is constructed to compensate for mutual coupling in uniform circular arrays with a center element. Relying on a limited number of phase modes, this matrix fully describes the dependency of the receive and transmit characteristics on azimuth angle, for a given elevation angle and for arbitrary terminations placed at the different antenna ports. A sample dual band uniform circular array with center element illustrates the use of the coupling matrix for direction of arrival estimation
Keywords :
antenna accessories; antenna arrays; antenna radiation patterns; array signal processing; azimuth angle; center element; coupling matrix; direction of arrival estimation; dual band uniform circular array; elevation angle; mutual coupling compensation; phase modes; radiation characteristics; Antenna arrays; Azimuth; Direction of arrival estimation; Impedance; Loaded antennas; Multiple signal classification; Mutual coupling; Phased arrays; Shadow mapping; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710736