Title :
Experiments on the element spacing in multi-antenna systems
Author :
Jungnickel, Volker ; Pohl, Volker ; Von Helmolt, Clemens
Author_Institution :
Fraunhofer-Inst. fur Nachrichtentechnik, Berlin, Germany
Abstract :
Wide-band radio channel measurements at 5.2 GHz using 4 transmit and 4 receive antennas with variable element spacing are reported aiming to evaluate the potential of multiple antennas at mobile terminals. We observe that, for antenna spacing d<0.5·λ(down to 0.2·λ), the link capacity is not smaller than for much larger d, due to mutual coupling between antenna elements. Compact antenna arrays may thus be practical at mobile terminals.
Keywords :
MIMO systems; antenna radiation patterns; broadband networks; channel capacity; dielectric-loaded antennas; land mobile radio; microwave antennas; microwave propagation; mobile antennas; monopole antennas; radio networks; receiving antennas; transmitting antennas; compact antenna arrays; element spacing; link capacity; mobile terminals; multiantenna systems; mutual coupling; receive antennas; transmit antennas; variable element spacing; wideband radio channel measurements; Antenna arrays; Antenna measurements; Electromagnetic scattering; Fading; MIMO; Mobile antennas; Mutual coupling; Rayleigh scattering; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207802
