Experimental demonstration of highly localized pulses (X waves) at microwave frequencies

Experimental demonstration of highly localized pulses (X waves) at microwave frequencies

A device that radiates transverse magnetic Bessel beams in the radiative near field is reported. The cone angle of the emitted radiation remains constant over a wide frequency range (18–30 GHz), allowing highly localized pulses (X waves) to be generated under a broadband excitation. The design proce...

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Veröffentlicht in:Physical review. B 2018-02, Vol.97 (8), Article 085136
Hauptverfasser: Chiotellis, Nikolaos, Mendez, Victor, Rudolph, Scott M., Grbic, Anthony
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Sprache:eng
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Beams (radiation)
Broadband
Microwave frequencies
Radiators
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container_title Physical review. B
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creator Chiotellis, Nikolaos
Mendez, Victor
Rudolph, Scott M.
Grbic, Anthony
description A device that radiates transverse magnetic Bessel beams in the radiative near field is reported. The cone angle of the emitted radiation remains constant over a wide frequency range (18–30 GHz), allowing highly localized pulses (X waves) to be generated under a broadband excitation. The design process, based on ray optics, is discussed. Both frequency and time domain experimental results for a prototype are presented. The measured fields show close agreement with simulation results, and demonstrate the radiator's ability to emit X waves within its nondiffracting range.
doi_str_mv 10.1103/PhysRevB.97.085136
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subjects Beams (radiation)
Broadband
Microwave frequencies
Radiators
title Experimental demonstration of highly localized pulses (X waves) at microwave frequencies
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