Title :
Dual and Wide-Band Inductively-Loaded Dipole-Based Antennas for WLAN/UMTS Applications
Author :
Othman, M.A. ; Abuelfadl, Tamer M. ; Safwat, Amr M. E.
Author_Institution :
Electron. & Electr. Commun. Eng. Dept., Cairo Univ., Giza, Egypt
fDate :
3/1/2013 12:00:00 AM
Abstract :
Electrically-small antennas can be designed using inductively-loaded dipoles. A simplified design procedure is carried out, using circuit models and EM simulations, to implement efficient dual and wide-band antennas with omni-directional radiation patterns. Measured performance agrees with simulations, and the proposed designs are employed for the UMTS 1.8/1.9/2.1/2.6-GHz and WLAN 2.4/3.6-GHz frequencies. A USB dongle antenna is prototyped to cover these frequency bands with impedance bandwidth reflection coefficient better than -10 dB.
Keywords :
3G mobile communication; UHF antennas; antenna radiation patterns; dipole antennas; directive antennas; microwave antennas; wireless LAN; EM simulation; USB dongle antenna; WLAN-UMTS Application; antenna radiation pattern; circuit model; dual-band inductively-loaded dipole-based antennas; electrically-small antenna; frequency 1.8 GHz; frequency 1.9 GHz; frequency 2.1 GHz; frequency 2.4 GHz to 3.6 GHz; frequency 2.6 GHz; impedance bandwidth reflection coefficient; omni directional radiation patterns; wide-band inductively-loaded dipole-based antenna; Antenna measurements; Dipole antennas; Frequency measurement; Impedance; Inductors; Resonant frequency; Electrically-small antennas; WLAN antennas; Z-antennas; metamaterial-inspired antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2227659
