Title :
Reactively loaded adaptive circular arrays for wireless communications
Author_Institution :
ENSTA, Paris, France
Abstract :
A non-conventional approach is presented for the adaptivity of antennas dedicated to indoor wireless communications. It is based on the adaptive choice of reactances connected to peripheral monopoles in a circular array, allowing efficient control of the radiation pattern in both elevation and azimuth. The antenna capability to reject spurious signals has been tested by electromagnetic computations and measurements, according to various adaptivity algorithms. The results are surprisingly good, even for a very small number (4) of adjusted reactances.
Keywords :
adaptive antenna arrays; antenna radiation patterns; electric reactance; indoor radio; monopole antenna arrays; adaptive antenna array; adaptivity algorithms; azimuth; electromagnetic computations; elevation; indoor wireless communications; low mobility applications; measurements; monopoles; radiation pattern control; reactance; reactively loaded adaptive circular arrays; spurious signals rejection; wireless communications; Adaptive arrays; Adaptive control; Antenna measurements; Antenna radiation patterns; Azimuth; Communication system control; Electromagnetic radiation; Programmable control; Testing; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.701727
