Dual-band shorted patch antenna for dual ISM-band application

摘要

A novel shorted patch antenna with a shorted parasitic patch for dual-band operation is proposed. The upper and lower operating frequencies are, respectively, controlled by the driven and parasitic patches, which are both operated as a quarter-wavelength structure in the proposed design. A prototype of the proposed design for achieving dual ISM-band operation at 2.45 and 5.8 GHz has also been implemented. The constructed prototype occupies a small volume of 5 × 9 × 20 mm{sup}3, and good antenna gain for the two operating bands has been obtained. Details of the proposed design and the experimental results of the constructed prototype are presented.