Title :
A non-uniform pitch dual band helix antenna
Author_Institution :
Motorola Inc., Libertyville, IL, USA
Abstract :
The designs of dual band cellular antennas have been reported in several papers. A non-uniform pitch helix antenna for dual band applications has been presented. The dual band frequencies are obtained by adjusting the total length of the wire for the low band and the pitch angle for the high band. By varying the total length of the wire and the pitch angle, the dual frequencies can be tuned to any dual frequency desired.
Keywords :
UHF antennas; cellular radio; helical antennas; mobile antennas; multifrequency antennas; wire antennas; 1800 MHz; 1900 MHz; 800 MHz; 900 MHz; AMPS/GSM applications; PCS/DCS applications; UHF; dual band cellular antennas; dual band frequencies; nonuniform pitch dual band helix antenna; pitch angle; wire length adjustment; Cellular phones; Dipole antennas; Distributed control; Dual band; Frequency; GSM; Helical antennas; Personal communication networks; Resonance; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873761
