In this contribution, we investigate several examples of antenna applications of waveform-selective devices, i.e., structures exhibiting different responses depending on the waveform of the incoming waves. In particular, as a first example, we describe an open-ended waveguide capped with an iris band-pass filter loaded with a lumped-element circuit. Thanks to the frequency- and time-domain selectivity properties of the loaded iris, the aperture antenna exhibits different radiating patterns depending on the waveform of the transmitted/received signal. Then, the same lumped-element circuit is used to design an antenna that is made invisible/visible to either a short pulse or a continuous signal. Exploiting a peculiar meandered cloaking metasurface loaded by the lumped-element circuit, the cloaking effects is automatically turned on/off depending on the time-domain characteristics of the incoming signal. This study aims paving the way for the design of antenna systems equipped with both frequency- and time-domain selectivity properties.

Vellucci, S., Barbuto, M., Monti, A., Toscano, A., & Bilotti, F. (2020). Waveform-selective devices for antenna applications. In 2020 33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.23919/URSIGASS49373.2020.9232253].

Waveform-selective devices for antenna applications

Vellucci S.;Barbuto M.;Monti A.;Toscano A.;Bilotti F.
2020

Abstract

In this contribution, we investigate several examples of antenna applications of waveform-selective devices, i.e., structures exhibiting different responses depending on the waveform of the incoming waves. In particular, as a first example, we describe an open-ended waveguide capped with an iris band-pass filter loaded with a lumped-element circuit. Thanks to the frequency- and time-domain selectivity properties of the loaded iris, the aperture antenna exhibits different radiating patterns depending on the waveform of the transmitted/received signal. Then, the same lumped-element circuit is used to design an antenna that is made invisible/visible to either a short pulse or a continuous signal. Exploiting a peculiar meandered cloaking metasurface loaded by the lumped-element circuit, the cloaking effects is automatically turned on/off depending on the time-domain characteristics of the incoming signal. This study aims paving the way for the design of antenna systems equipped with both frequency- and time-domain selectivity properties.
978-9-4639-6800-3
Vellucci, S., Barbuto, M., Monti, A., Toscano, A., & Bilotti, F. (2020). Waveform-selective devices for antenna applications. In 2020 33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.23919/URSIGASS49373.2020.9232253].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11590/382693
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