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There is a continuous battle in designing modern wireless communication systems to save few decibels in power budgets to improve performance using all possible means. Antenna serves as a key critical component in such a design. Here, we are proposing to improve the basic antenna element that is being used at the base station antenna systems. It is suggested that more metalization in the radiating...
An experimental setup is realized to practically generate Bessel beams in the microwave regime. The setup, which consists of a series of circular loop antennas inserted coaxially inside a circular metallic waveguide, excites the waveguide's transverse-electric modes such that their superposition forms a Bessel beam at the open-end of the waveguide. The excitation currents are calculated from the needed...
Novel circularly polarized (CP) antenna configurations derived from Moxon type antenna (bent dipole element over a ground plane) for broadband UHF SATCOM applications. A sequence of topologies starting from a single vertical element to two vertical elements of the Moxon arms, then widened strip arm elements were studied. Further, arms were widened to bowtie structures with bents at 90°. for achieving...
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