Analysis and design Rectangular patch with half circle fractal techniques

In this paper, Rectangular patch with circular half geometry design is proposed. The proposed design has operate at dual band of frequency 2.7-2.9 GHz and 7.8-8.5 GHz. The proposed design can be used in the military for meterological purpose and satellite communications. The proposed design is fabricated on RTduroid/5880 with relative permittivity 2.2 and having dimension 42× 42×32mm³. To get the proper impedance matching of 50Ω, coaxial feed line is used. The proposed design has return loss -18.31dB and -23.31dB in frequency band 2.7-2.9Ghz and 7.8-8.5Ghz. Radiation pattern of proposed design in E-plane and Hplane is acceptable. The proposed design is simulated using High Frequency structure simulator.