Software Defined Radio (SDR) is a flexible radio architecture programmed through software, which is reconfigured depending on the usage scenario. SDR consists of a programmable hardware base that is controlled through software. In this paper a subwavelength tunable and steerable Fabry-Perot antennas is analyzed. This antenna consists of a low-profile resonant cavity created by a frequency selective surface placed in close proximity of an active high-impedance surface. The active ground plane is synthesized by loading the high-impedance surface with varactors. Such antenna allows both tuning the high-gain operation frequency and obtaining a beam steering in correspondence of each frequency. For the mentioned characteristics and the simplicity of its realization the structure results suitable for software defined radio and cognitive radio applications.
Low-profile tunable and steerable fabry-perot antenna for software defined radio applications
COSTA, FILIPPO;MONORCHIO, AGOSTINO;MANARA, GIULIANO
2010-01-01
Abstract
Software Defined Radio (SDR) is a flexible radio architecture programmed through software, which is reconfigured depending on the usage scenario. SDR consists of a programmable hardware base that is controlled through software. In this paper a subwavelength tunable and steerable Fabry-Perot antennas is analyzed. This antenna consists of a low-profile resonant cavity created by a frequency selective surface placed in close proximity of an active high-impedance surface. The active ground plane is synthesized by loading the high-impedance surface with varactors. Such antenna allows both tuning the high-gain operation frequency and obtaining a beam steering in correspondence of each frequency. For the mentioned characteristics and the simplicity of its realization the structure results suitable for software defined radio and cognitive radio applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
