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Phased array antenna matching: Simulation and optimization of a planar phased array of circular waveguide elementsA computerized simulation of a planar phased array of circular waveguide elements is reported using mutual coupling and wide angle impedance matching in phased arrays. Special emphasis is given to circular polarization. The aforementioned computer program has as variable inputs: frequency, polarization, grid geometry, element size, dielectric waveguide fill, dielectric plugs in the waveguide for impedance matching, and dielectric sheets covering the array surface for the purpose of wide angle impedance matching. Parameter combinations are found which produce reflection peaks interior to grating lobes, while dielectric cover sheets are successfully employed to extend the usable scan range of a phased array. The most exciting results came from the application of computer aided optimization techniques to the design of this type of array.
Document ID
19730002412
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Dudgeon, J. E. (Alabama Univ. University, AL, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1972
Subject Category
Communications
Report/Patent Number
NASA-CR-123820
Accession Number
73N11139
Funding Number(s)
CONTRACT_GRANT: NAS8-25894
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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