Design of Frequency Reconfigurable Annular Microstrip Patch Antenna using Pin Diode

In the present work annular microstrip patch antenna has been reconfigured using annular rectangular patch and its simulation has been done on substrate FR4 (Dielectric Constant 4.4). The antenna is slotted with pin in the ground layer. This paper presents the design structure of Annular Microstrip Patch Antenna and simulation in range from S - band to Ku -band. In the present work, return loss, VSWR, gain and directivity of designed antenna has been computed. The proposed antenna is more compact to the other kind of antenna and finds utility for multiband satellite communication.