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This letter presents a low-profile and wideband monocone quasi-Yagi antenna to generate endfire radiation beams. The antenna consists of one driven monocone with two slots cut on the loaded top hat, five identical grounded cones serving as a roll of reflectors, and another two parasitic cones beside the driver to suppress the sidelobe level and improve the front-to-back ratio. The profile of the antenna...
The wideband and low-profile H-plane horn antenna is useful for applications in missiles and unmanned aerial vehicles because of its wide bandwidth and stable radiation beams. The H-plane horn antenna is designed to be mounted on a conducting platform. The grounding platform is an integral part of the antenna. This paper presents some parametric studies of the H-plane horn antenna as a function of...
This paper introduces three types of wideband and low-profile end-fire antennas, which include an H-plane ridged substrate integrated waveguide (SIW) horn antenna, a surface wave antenna, and a log-periodic top-hat monopole antenna. They can achieve the bandwidths of 93%, 100%, and 125% while retaining the antenna thicknesses of 0.13λ0, 0.12λ0, and 0.127λ0 at the center frequency, respectively. These...
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