Radio Astronomy Based S-Band Horn Antenna for CubeSat Application

The CubeSat is commonly used for low earth orbit for remote sensing and communication cube sat with 9 cm X 9cm are used in solar cell to convert the solar light which is stored in lithium- ion battery. The radio as tronomy is a sub field of the as tronomy that identifies the celestial object at radio frequency. The s-band frequency range of 5 GHz and wavelength of 1500nm is used to design horn antenna. Horn antenna is used in high - speed and inter -satellite links where high data rates are favored which is used to transmit bulk data. It is also used for remote sensing applications. Design and simulation of horn antenna which works at micro wave domain starts at frequency of 3GHZ, to improve the antenna medium gain. Pyramidal horn antenna is used and designed in the frequency of 5GHZ. When the same antenna is designed Changing with frequency of 10GHz and 15GHz Gain, Directivity value and Efficiency are improved From the results, VSWR value is reduced when the frequency is increased It shows that, by using horn antenna, the amount of reflection can be reduced While increasing the amount of radiated efficiency, powers radiated by an antenna to the power fed in the antenna's excitation port ratios are determined.