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;
2012-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
