Self contained antenna test device

Details Self contained antenna test device Self contained antenna test device

G - Physics

01

R

351/1

G01R 31/00 (2006.01) G01R 29/10 (2006.01)

Patent

CA 1193713

Abstract of the Disclosure Twin lead transmission lines are positioned in close coupling relationship to linearly polarized and planar arrays of antenna radiating elements to provide a self contained instantane- ous antenna test and measurement system. Near field energy from the transmission lines is coupled to the transversely arranged antenna dipole elements to permit testing without degrading antenna performance. Signals induced on the radiating elements are of uniform amplitude and linearly changing phase equivalent to those of a far field plane wave. Various tests such as antenna failure and performance characteristic measurements, including gain, pattern and phase difference, can be made automatically. A balanced power divider distributes RF power equally to the twin lead transmission lines and a system processor controls phase shifter scanning elements and analyzes the various output para- meters to provide the desired test and measurement information concerning the selected array of dipoles and components.

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