Rectangular slitted ground stacked microstrip patch antenna design for public safety purposes

In this paper, a novel multiple slitted and circular stacked microstrip patch antenna with high gain has been proposed. The composite effect of employing slots and stacking provides enhanced return loss (dB), high gain (dB) and directivity (dBi). The proposed antenna design employ FR4 material as a substrate having dielectric constant 4.4. The copper material has been used for patch and ground. The input feed to the proposed antenna design is provided with microstrip feed line having input impedance of 50 Ω which exactly matches with the input impedance of SMA connector having impedance of 50 Ω ensuring maximum power transfer to the antenna. The proposed antenna design has been simulated in CST Microwave Studio 2014, successfully fabricated and tested using E5071C network analyzer and anechoic chamber. It has been observed that the CST simulated antenna results matches with the practically fabricated results of the proposed antenna. The proposed antenna design can be effectively used for public safety purposes (4.94GHz–4.99GHz).