DocumentCode :
2744639
Title :
Method of admittance matrix measurement of an antenna array
Author :
Pelletier, M. ; Cummins, J.A. ; Delisle, G.Y.
Author_Institution :
Laval University, Quebec City, Que., Canada
Volume :
13
fYear :
1975
fDate :
27546
Firstpage :
297
Lastpage :
300
Abstract :
A method is described for measuring the admittance matrix of an antenna array considered as an N-port network. The method utilizes the properties of hybrid junctions to apply at the antenna ports, taken two at a time, with all other ports short-circuited, two pairs of incident voltages of known amplitudes and phases. Measurements are obtained of the reflections coefficients ( 
) and of the input admittances ( 
) at the pair of antenna ports under test for both modes of excitations. The desired admittance parameters are then easily determined from the measured quantities as shown in the formulation given below. The proposed method applies to arbitrary arrays and is gererally easier to implement than those that are now available [1-4].
) and of the input admittances ( ) at the pair of antenna ports under test for both modes of excitations. The desired admittance parameters are then easily determined from the measured quantities as shown in the formulation given below. The proposed method applies to arbitrary arrays and is gererally easier to implement than those that are now available [1-4].Keywords :
Admittance measurement; Antenna arrays; Antenna measurements; Equations; Hybrid junctions; Phase measurement; Propagation losses; Q measurement; Reflection; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1975
Type :
conf
DOI :
10.1109/APS.1975.1147410
Filename :
1147410
Link To Document :
