Design a compact CPW monopole antenna on rubber substrate for ISM band application

One of the most challenging works on compact antenna design is to maintain flexibility orientation. This paper demonstrates a coplanar waveguide (CPW) fed monopole with rubber substrate at 2.45 GHz center frequency for ISM band application. The proposed attained realized gain 4.06 dB radiation efficiency around 90% peak value and bandwidth 541.5 MHz. was designed using CPW structure. CST microwave studio applied simulation. main purposed this study improve performances specially bandwidth, gain, efficiency. Moreover, another aim that reduce size thickness upon existing related substrate.