Title :
Dual-frequency electronically tunable CPW-fed CPS dipole antenna
Author :
Kolsrud, AT ; Li, Ming-yi ; Chang, Kai
Author_Institution :
AT&T Bell Labs., Whippany, NJ, USA
fDate :
4/2/1998 12:00:00 AM
Abstract :
A CPW-fed coplanar strip (CPS) dipole antenna is presented which operates at dual frequencies. A wideband CPW-to-CPS balun was designed and used. Dual-frequency operation of the CPS dipole antenna was realised by introducing a small gap in the length of the dipole. Varactors were integrated with CPS dipoles to form integrated antennas. The CPS dipole antenna was electronically tuned by varying the varactor bias voltages. Measurements showed good results of dual operating frequencies, frequency range, and antenna pattern
Keywords :
antenna radiation patterns; coplanar waveguides; dipole antennas; tuning; varactors; waveguide antennas; 2.065 GHz; 3.955 GHz; CPW-fed CPS dipole antenna; antenna pattern; coplanar strip; dual-frequency operation; electronically tunable dipole antenna; frequency range; integrated antennas; varactor bias voltage; varactors; wideband CPW-to-CPS balun;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980495
