Title :
Switchable multi-band coplanar antenna
Author :
Mansour, Ghaith ; Hall, Peter S. ; Gardner, Peter ; Rahim, M.K.A.
Author_Institution :
Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham Edgbaston, Birmingham, UK
Abstract :
A switchable microstrip patch antenna for multi-frequency operation is presented. The antenna is fed by coplanar waveguide via capacitive coupling slot. The antenna allows an easy reconfigurability of the frequency band of operation by incorporating switches in the coupling slot. The resonant frequency of the antenna can be adjusted by setting the switches on or off. The antenna is capable of switching between 1.6, 1.8, 2.0 and 2.4 GHz. Measurements show that the realized gain is 5.2, 4.4 and 4.9 dB for the 1.6, 2.0 and 2.4 GHz frequency bands respectively. Both simulation and measurement results indicate that the proposed antennas demonstrate very good impedance matching, stable radiation patterns and reasonable gain at all frequency bands.
Keywords :
antenna feeds; antenna radiation patterns; impedance matching; microstrip antennas; multifrequency antennas; planar antennas; slot antennas; antenna fed; antenna radiation patterns; capacitive coupling slot; coplanar waveguide; frequency 1.6 GHz; frequency 1.8 GHz; frequency 2.0 GHz; frequency 2.4 GHz; gain 4.4 dB; gain 4.9 dB; gain 5.2 dB; impedance matching; microstrip patch antenna; multifrequency operation; switchable multiband coplanar antenna; Antenna measurements; Couplings; Microstrip antennas; Resonant frequency; Switches;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6114024
