Title :
Bandwidth enhancement of ground antenna using resonant feeding circuit
Author :
Zhang, Rongting ; Liu, Yanbing ; Kim, H.H. ; Kim, Heonhwan
Author_Institution :
Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
A loop-type ground antenna with wide-band operation is proposed for USB dongle applications. The solution for improving the bandwidth is based on a resonant feeding circuit that includes both an inductor and a capacitor. By choosing an appropriate ratio of the inductance to the capacitance, the impedance bandwidth (VSWR <; 2) is 21.8<; at 2.2 GHz, sufficient bandwidth to cover both the WCDMA and WiMax frequency bands.
Keywords :
WiMax; antenna feeds; bandwidth allocation; capacitors; circuit resonance; code division multiple access; electric impedance; inductance; inductors; loop antennas; wavelength division multiplexing; USB dongle application; WCDMA; WiMax frequency band; bandwidth enhancement; capacitance; capacitor; impedance bandwidth; inductance; inductor; loop-type ground antenna; resonant feeding circuit; wide-band operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.0691
