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
Copyright 2011 European Space Agency. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the conference's website for access to the definitive, published version.
Microwave and Millimetrewave Theory and Technology
Antennas and Propagation