Title :
A wideband faceted multibeam antenna
Author :
Gunnarsson, Ronny ; Ouacha, Aziz ; Huss, Lars-Gunnar ; Samuelsson, Carl ; Alfredsson, Mattias
Author_Institution :
Swedish Defence Res. Agency, Linkoping, Sweden
Abstract :
This paper presents the general system architecture as well as simulation results for a wideband faceted multibeam antenna capable of performing both receiving (Rx) and transmitting (Tx) functions. Each facet in the antenna consists of a planar, wideband, microstrip antenna array and a Rotman lens for 1D beam steering in azimuth. The facet can be separately reconfigured for either Tx or Rx functions by controlling switches connected to T/R modules. Simulation results are presented for planar and conformal antenna arrays consisting of bow-tie elements as well as for an infinite planar array consisting of stacked, aperture-coupled, microstrip antenna elements. For the latter, presented simulation results show that the infinite array has an active reflection coefficient approximately lower than -10 dB for scanning angles up to ±30° in the frequency band 5.3-12 GHz.
Keywords :
antenna theory; broadband antennas; microstrip antenna arrays; planar antenna arrays; 1D beam steering; Rotman lens; conformal antenna arrays; frequency 5.3 GHz to 12 GHz; general system architecture; loss 10 dB; microstrip antenna array; planar antenna array; wideband antenna array; wideband faceted multibeam antenna; Arrays; Broadband antennas; Microstrip; Microstrip antenna arrays; Microstrip antennas; Wideband;
Conference_Titel :
Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on
Conference_Location :
Waltham, MA
Print_ISBN :
978-1-4244-5127-2
Electronic_ISBN :
978-1-4244-5128-9
DOI :
10.1109/ARRAY.2010.5613251
