This paper presents the most recent advances within ARASCOM project (MEMS & Liquid Crystal based’ Agile Reflectarray Antennas for Security & COMmunication). One of the objectives of the project is the exploitation of MEMS and Liquid Crystal (LC) technology in mm-wave electronic scanning reflectarrays. In particular two solutions have been investigated: a MEMS-only approach, where the switches are used to obtain reconfigurable elementary cells with 1-bit of phase resolution - an efficient method applicable in large antennas; and a LC/MEMS combined solution, where the LCs provide a continuous phase-shift up to 180° and a MEMS is used to add another 180° when necessary. Preliminary results validate the proposed approach and give indications for future steps.

MEMS and combined MEMS/LC technology for mm-wave Electronic Scanning Reflectarrays

Giacomozzi, Flavio;
2012

Abstract

This paper presents the most recent advances within ARASCOM project (MEMS & Liquid Crystal based’ Agile Reflectarray Antennas for Security & COMmunication). One of the objectives of the project is the exploitation of MEMS and Liquid Crystal (LC) technology in mm-wave electronic scanning reflectarrays. In particular two solutions have been investigated: a MEMS-only approach, where the switches are used to obtain reconfigurable elementary cells with 1-bit of phase resolution - an efficient method applicable in large antennas; and a LC/MEMS combined solution, where the LCs provide a continuous phase-shift up to 180° and a MEMS is used to add another 180° when necessary. Preliminary results validate the proposed approach and give indications for future steps.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11582/179613
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