Hat Feed Antenna of Sum and difference Pattern Synthesis
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Potentially Separate waves could propagate independently with arbitrary amplitude and phase, if one longitudinal septum is inserted in the H-Plane of the circular waveguide. The presented paper has implemented this idea in order to excite hat feed antenna simultaneously with two in-phase and out of phase signals and leads to sum and difference patterns.
33rd ESA Antenna Workshop on Challenges for Space Antenna Systems
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Microwave and Millimetrewave Theory and Technology
Antennas and Propagation