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].
Titolo: | Waveform-selective devices for antenna applications | |
Autori: | ||
Data di pubblicazione: | 2020 | |
Citazione: | 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]. | |
Handle: | http://hdl.handle.net/11590/382693 | |
ISBN: | 978-9-4639-6800-3 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |