We have presented simulation and experimental results of wideband coplanar waveguide fed coplanar patch antennas. The antennas were developed to widen the narrow bandwidth of the newly suggested coplanar patch antennas. This was achieved by introducing two identical parasitic patches next to the resonant edges of the main patch. Simulation was done by a commercial package. Antennas operating at 10 GHz were designed and fabricated. The return loss, radiation patterns and gain of the antennas were measured. An impedance bandwidth (return loss <-10 dB) of about 8.0 % and stable radiation patterns were observed, and the gain of the antennas were about 9.0 dBi. Design procedures and the experience of using the antennas have been discussed.