Title :
Dual-band six-element switched parasitic array for smart antenna cellular communications systems
Author :
Schlub, R. ; Thiel, D.V. ; Lu, J.W. ; O´Keefe, S.G.
Author_Institution :
Radio Sci. Lab., Griffith Univ., Brisbane, Qld., Australia
fDate :
8/3/2000 12:00:00 AM
Abstract :
Simulation results for a dual-band switched parasitic smart antenna array designed for cellular communications systems are presented. The array consists of six loaded monopole elements on an infinite ground plane and offers five switched directions equally spaced through 360°. At 900 and 1900 MHz, the 10 dB bandwidths are 15 and 13%, respectively. The antenna covers the azimuth plane with a maximum gain of 4 dBi and a minimum gain of 2 dBi. The front-to-back ratios of the radiation patterns are better than -15 dB. The design is robust in terms of manufacturing and environmental tolerances
Keywords :
adaptive antenna arrays; antenna radiation patterns; beam steering; cellular radio; genetic algorithms; monopole antenna arrays; multifrequency antennas; sensitivity analysis; 1900 MHz; 900 MHz; azimuth plane; dual-band six-element switched parasitic array; dual-band switched parasitic smart antenna array; electronic beam steering; environmental tolerance; five switched directions; front-to-back ratios; genetic algorithm technique; infinite ground plane; loaded monopole elements; manufacturing tolerance; maximum gain; minimum gain; radiation patterns; robust design; simulation results; smart antenna cellular communications systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000995
