Title :
Adaptive beam steering antenna: Improvements and experimental validation
Author :
Ratajczak, Philippe ; Brachat, Patrice ; Fargeas, Jean-Marc
Author_Institution :
Antennas R&D Unit, Orange Labs., La Turbie
Abstract :
Latest developments, concerning the performances of an adaptive beam steering antenna, are presented in this paper. In a previous breadboard the radiation control was altered above 1.7 GHz because of the inverse capacitance of the PIN diodes used. A new breadboard has been manufactured and tested with an optimized reconfigurable EBG material using new diodes and a modified structure. The measurements, in different configurations (single or multi beam), have been made and have shown the adaptive capabilities of the new antenna and a control of the radiation up to 2.8 GHz with a level of losses in the EBG material compatible with the foreseen application of the antenna.
Keywords :
UHF antennas; antenna radiation patterns; beam steering; p-i-n diodes; photonic band gap; PIN diode; adaptive beam steering antenna; antenna radiation control; frequency 2.8 GHz; optimized reconfigurable EBG material; Adaptive arrays; Antenna measurements; Beam steering; Capacitance; Diodes; Loss measurement; Manufacturing; Materials testing; Metamaterials; Periodic structures;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
