Optically Controlled Reconfigurable Antenna Array for mm-Wave Applications

This letter reports the concept and development of the first optically controlled reconfigurable antenna for millimeter-wave (mm-wave) applications. It is based on a slotted-waveguide antenna array and two photoconductive switches, which are used to control the slot electrical length. This novel pho...

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Veröffentlicht in:	IEEE antennas and wireless propagation letters 2017, Vol.16, p.2142-2145
Hauptverfasser:	da Costa, I. F., Cerqueira S, Arismar, Spadoti, D. H., da Silva, L. G., Ribeiro, J. A. J., Barbin, S. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna arrays Antenna radiation patterns Computer simulation Frequencies millimeter-wave (mm-wave) Optical control Optical distortion Optical polarization Optical switches Optical waveguides optically controlled antennas Photonics reconfigurable antennas Reconfiguration Switches Waveguide antennas
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Beschreibung
Zusammenfassung:	This letter reports the concept and development of the first optically controlled reconfigurable antenna for millimeter-wave (mm-wave) applications. It is based on a slotted-waveguide antenna array and two photoconductive switches, which are used to control the slot electrical length. This novel photonics-based reconfigurable strategy enables frequency tunability and radiation pattern reconfiguration through the 28- and 38-GHz frequency bands. Numerical simulations and experimental results illustrate its applicability for mm-wave indoor applications. The measured gain is approximately 8.0 and 9.0 dBi at 28 and 38 GHz, respectively.
ISSN:	1536-1225 1548-5757
DOI:	10.1109/LAWP.2017.2700284