Title :
Compact dual-frequency PIFA designs using LC resonators
Author :
Lui, Gabriel K H ; Murch, Ross D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Clear Water Bay, China
fDate :
7/1/2001 12:00:00 AM
Abstract :
We report our investigation into single-feed dual-frequency planar inverted F antenna (PIFA) designs which make use of LC resonators (or “RF traps”). We introduce three basic methods for incorporating the LC resonator into the PIFA, including a variant of the meandering PIFA. Experimental results are provided and these show that dual-frequency operation at 900 (cellular systems) and 1800 MHz (personal communication systems) can be achieved for all three designs
Keywords :
UHF antennas; antenna feeds; capacitance; cellular radio; inductance; multifrequency antennas; personal communication networks; resonators; transmission line theory; 1800 MHz; 900 MHz; LC resonators; RF traps; UHF; antenna radiation patterns; approximate transmission line model; cellular radio systems; chip capacitor; chip inductor; compact dual-frequency PIFA designs; meandering PIFA; personal communication systems; single-feed planar inverted F antenna; Capacitance; Capacitors; Geometry; Impedance; Inductance; Inductors; Resonance; Resonant frequency; Transmission lines; Transmitting antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
