The patch antennas with an array of pins（pin array patch antennas）with excellent radiation characteristics are investigated for various substrate thicknesses.The radiation in the horizontal plane of a pin array patch antenna is very small compared to that of a conventional patch antenna.And the increase of forward radiation and the decrease of backward radiation of a pin array patch antenna are obtained than those conventional one’s.Also the half-power beamwidth of E-plane radiation pattern of a pin array patch antenna is narrower compared to that of the conventional so that the directivity is improved.
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机译：análisevideolaringoestroboscópicadepacientessubmetidosàradioterapiapara tratamentodecâncerglóticoVideolaryngostroboscopicanalysis of patients for radiation therapy for radiation therapy for glottic cancer
