Small Square Reconfigurable Antenna with Switchable Single/Tri-Band Functions
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A novel frequency reconfigurable slot antenna for suitable switchable radiations at WLAN and a tri-band at Bluetooth, WiMAX and upper WLAN applications is designed and fabricated. Switchable frequency responses are achieved by implementation of a PIN diode within the antenna ground plane. The antenna structure is consist of a square radiation patch with an E-shaped slot, a modified ground plane with an inverted T-shaped strip that act as a parasitic stub and two parallel slots and a protruded strip which is connected to the parasitic stub with a PIN diode. The presented antenna has a compact size of 20×20 mm2 while providing switchable radiations at 2.36-2.5 GHz Bluetooth, 3.51-3.79 GHz WiMAX, and 5.47-5.98 GHz WLAN when diode is ON and 5.04-6.13 GHz WLAN when diode is OFF.
KeywordsE-shaped slot, frequency reconfigurable, inverted T-shaped strip, parasitic stub, rectangular-shaped notches
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2016 vol. 25, č. 1, s. 40-45. ISSN 1210-2512
- 2016/1