Triple Band Circular Patch Microstrip Antenna with Superstrate

A novel compact triple band slit cut circular patch antenna with superstrate is proposed; slits on the patch provide additional resonances. The superstrate (cover) of dielectric layer provides protection to printed circuit antenna from environmental hazards due to abnormal weather conditions. The slits add two resonances in the resonance of a circular patch to achieve triple band antenna for multi services. The dielectric superstrate or cover above the microstrip patch causes the change in fringing fields between the patch and ground plane. The change in fringing field is accounted to calculate the effective relative permittivity. The effective permittivity is considered to evaluate the changes in resonance frequency due to superstrate. The various parameters of the antenna have been investigated and the antenna is simulated on Ansoft’s HFSS software simulator. A prototype of antenna is fabricated to confirm the return loss by measurement using the Agilent Technologies’ N5230A PNA-L S. K. Gupta Department of Electronics Engineering, Ambedkar Polytechnic, Govt. of Delhi, Shakarpur, Delhi 110092, India e-mail: [email protected] S. K. Gupta Department of Electronics Engineering, Uttarakhand Technical University, Dehradun, India A. Sharma · B. K. Kanaujia (B) Department of Electronics and Communication Engineering, Ambedkar Institute of Advanced Communication Technologies and Research, Geeta Colony, Delhi 110031, India e-mail: [email protected]; [email protected] A. Sharma e-mail: [email protected] G. P. Pandey Department of Electronics and Communication Engineering, Maharaja Agrasen Institute of Technology, Delhi, India e-mail: [email protected] G. P. Pandey Department of Electronics Engineering, Uttarakhand Technical University, Dehradun, India