Abstract :
Two frequency-reconfigurable antennas have been designed and combined in a space with limited volume, i.e. 40 times 20 times 6 mm. Each antenna can be reconfigured to operate at different frequency bands depending on the state of an embedded switch, which is implemented using a pin diode. The first antenna can be switched between the 0.82-0.96 GHz band (GSM/CDMA) and the 1.7-2.17 GHz band (DCS/PCS/WCDMA), which are cellular bands. The second antenna can be switched between the 3.4-3.6 GHz band (mWiMax) and the 2.3-2.5 GHz, 5.15-5.35 GHz bands (WiBro/WLAN 11a/ b/g/n), which are connectivity bands. The proposed combined antenna operates over both cellular bands and connectivity bands concurrently.
Keywords :
UHF antennas; cellular radio; microwave antennas; DCS; GSM; PCS; WCDMA; WLAN 11a; WLAN 11b; WLAN 11g; WLAN 11n; WiBro; cellular bands; connectivity bands; frequency 0.82 GHz to 0.96 GHz; frequency 1.7 GHz to 2.17 GHz; frequency 2.3 GHz to 2.5 GHz; frequency 3.4 GHz to 3.6 GHz; frequency 5.15 GHz to 5.35 GHz; mWiMax; pin diode; reconfigurable antenna;
