Wideband flush mountable tilted beam antenna
2017
This paper presents a Wideband, Flush mountable C-Band Antenna with Tilted Beam. This design is based on the concepts of Branch-Waveguide Directional Coupler. The antenna is fed by a coaxial probe feeding a tapered waveguide, which in turn, feeds number of Branch Waveguides of approximately quarter wavelength size at design frequency. The design is aimed to achieve about 50° of beam tilt from broadside with a gain of >9dBi and Beamwidths of >50deg in both planes. Antenna Design, Simulation and Measurement results are presented in this paper. The tilted beam at approximately 50° from broadside direction is achieved with a gain of approximately 10dBi. The beamwidths achieved are of the order of 50° and 68° in E and H Planes respectively. Additive Manufacturing has been used for the fabrication of the antenna and the measurement results are in very close agreement with the simulation.
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