Title :
A circular polarized tem horn antenna array with large scanning angle
Author :
Strauss, Georg ; Breitsameter, Klaus
Author_Institution :
Fac. of Electr. Eng. & Inf. Tech., Munich Univ. of Appl. Sci., Munich, Germany
Abstract :
By using open ended parallel plate waveguides (often called TEM horn antennas) a new concept for an electronically steerable phased array antenna is shown. The concept allows a usable bandwidth of more than 100% and is suitable for full duplex communication systems. It provides orthogonal polarizations (both linear and circular) for both the transmit and receive paths. Configured as a two-dimensional (flat) array, scan angles of more than 55° can be achieved by good suppression of cross polarization. Easy integration of planar waveguides as well as rectangular waveguides provides a wide variety of system architectures. We present as examples arrays for X-band and for combined Ku- / Ka-band (17 ... 31 sGHz ) which can be scanned electronically above one axis. Receive path uses LHC, transmit path RHC, polarization.
Keywords :
antenna phased arrays; horn antennas; waveguide antenna arrays; TEM horn antennas; circular polarized TEM horn antenna array; cross polarization; duplex communication systems; electronically steerable phased array antenna; large scanning angle; open ended parallel plate waveguides; orthogonal polarizations; planar waveguides; rectangular waveguides; system architectures; two-dimensional array; Antenna arrays; Antenna measurements; Arrays; Horn antennas; Rectangular waveguides; LHC and RHC; TEM horn antenna; big scan angle; full duplex; high radiation efficiency; phased array;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-7687-9
DOI :
10.1109/RWS.2011.5725477
