Wideband Miniaturized L-probe Fed Fractal Clover Leaf Microstrip Patch Antenna

A novel fractal called Fractal Clover Leaf (FCL) is introduced and shown to have well miniaturization capabilities. The proposed patches are fed by L-shape probe to achieve wide bandwidth operation in PCS band. A numerical parametric study on the proposed antenna is presented. It is found that the antenna can attain more than 72% size reduction as well as 17% impedance bandwidth (VSWR<2), in cost of less gain. It is also shown that impedance matching could be reached by tuning probe parameters. The proposed antenna is suitable for handset applications and tight packed planar phased arrays to achieve lower scan angels than rectangular patches.