Title :
Dual Band Meander Line Antenna for Wireless LAN Communication
Author_Institution :
Inst. d´´Electronique et de Telecommun. de Rennes
fDate :
3/1/2007 12:00:00 AM
Abstract :
A printed meander line antenna is described with a shaped ground plane and a back coupled rectangular patch. The prototype is proposed for wireless local-area network (WLAN) applications in the 2.4-2.48GHz and 5.15-5.35 GHz frequency range. Dual-band operation, resonance impedance matching, and wide impedance bandwidth are the characteristics of the antenna. The antenna impedance matching for the first-resonance is provided by applying a shaped ground plane. The second even-mode resonance is generated by adding a rectangular patch at the back of the meander antenna. The impedance bandwidth for a return-loss less than -10 dB is 11% and 6% for the first- and the second-resonance, respectively. Furthermore, the second-resonance frequency can be tuned by the length of the rectangular patch and it meets the requirements for the IEEE 802.11a WLAN (5.15-5.35 GHz and 5.470-5.725 GHz or 5.725-5.825GHz). In fact, the second-resonance frequency can be continuously adjusted between 5.2 and 7 GHz with a little effect on the first-resonance
Keywords :
UHF antennas; electromagnetic coupling; impedance matching; microstrip antennas; microwave antennas; multifrequency antennas; wireless LAN; 2.4 to 2.48 GHz; 5.15 to 5.35 GHz; 5.2 to 7 GHz; WLAN; back coupled rectangular patch; dual band meander line antenna; resonance impedance matching; shaped ground plane; wide impedance bandwidth; wireless LAN communication; wireless local-area network; Bandwidth; Broadband antennas; Connectors; Dual band; Impedance matching; Prototypes; Resonance; Resonant frequency; Slabs; Wireless LAN; Antenna; dual-band; efficiency; meander line; wideband; wireless local area network (WLAN);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.891873
