A quad-band reconfigurable microstrip-fed circular disc monopole antenna for multiradio wireless systems

摘要

A quad-band reconfigurable monopole antenna for multiradio wireless systems is presented and designed on Rogers 5880 substrate. The quad-band antenna comprised of circular patch, parasitic double T-stub, two inverted L-stubs. Single diode is employed between stubs to make antenna reconfigurable and obtained four resonance at 2.3/3.89/4.96/5.70 GHz. Impedance bandwidth of antenna are 350/410/110/650 MHz for LTE 2300 and 2.4 GHz WLAN, C-band, 4.9 GHz WLAN, 5.5 GHz WiMAX and 5.8 GHz WLAN bands.