Wide-angle impedance matching of a planar array antenna by a dielectric sheet
- 1 January 1966
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 14 (1) , 49-53
- https://doi.org/10.1109/tap.1966.1138622
Abstract
For wide-angle scanning array antennas, the magnitude of the reflection changes substantially with scan angle and wave polarization. Conventional matching techniques in the individual element feed lines cannot compensate for these changes. There is a method of wide-angle impedance matching (WAIM) which utilizes a thin, high-k, dielectric sheet spaced in front of the array. It is capable of equalizing the reflection coefficient forEandHpolarization at any specified scan angle, or for any angle in theEandHscan planes. This technique is applied to an array having element aperture windows flush with a metal face. It is adapted for the procedure of matching in a waveguide simulation of an infinite array.Keywords
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