Title :
Multi-band polarization-versatile array antenna for smart antenna applications in cellular systems
Author :
Wagner, Martin ; Goebel, Uhland ; Hesselbarth, Jan ; Graeni, Mischa ; Nuechter, Peter
Author_Institution :
Huber + Suhner AG, Pfaffikon, Switzerland
Abstract :
A new array antenna concept for application as smart antenna in cellular systems has been developed. It was implemented as a compact, 4×4 dual polarized, multi-band array together with a calibration network which satisfies the tight tolerances of the system requirements. A three-dimensional radiator structure made of metalized plastic covers more than 20% bandwidth (VSWR<1.5) and allows various polarizations, e.g., dual-slant polarization. A large microstrip board for signal distribution forms a sandwich structure together with a carbon-fiber reinforced back-plate and a foam-filled epoxy radome. These measures keep the weight of the array exceptionally low while ensuring high mechanical stability.
Keywords :
adaptive antenna arrays; calibration; cellular radio; injection moulding; mobile communication; polarisation; 3D radiator structure; calibration network; carbon-fiber reinforced back-plate; cellular systems; dual polarization; dual-slant polarization; foam-filled epoxy radome; injection molding; mechanical stability; metalized plastic covers; microstrip board; multiband array; multiband polarization-versatile array antenna; mutual coupling; signal distribution; smart antenna; Antenna arrays; Bandwidth; Calibration; Mechanical variables measurement; Microstrip antenna arrays; Plastics; Polarization; Sandwich structures; Stability; Weight measurement;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1338941
