Design and realization of two array triangle patch of microstrip antenna with gold plat at frequency 2400–2450 MHz for hexagonal nanosatellite

Ministry of Education and Culture developed a nano-sized satellite technology, or so-called nanosatellite, to design Indonesia inter-University Satellite-1 (IiNUSAT-1) as a learning tool of space engineering, for the universities in Indonesia. These nano satellites orbiting in Low Earth Orbit trajectory (LEO). This satellite has a primary function for data communication. On the space segment subsystems are RSPL (Remote Sensing Payload) as an image sensor payload following the transmitter system (antenna) that can be used for sensing applications earth´s surface. Based on the above conditions, this research was made of two arrays of microstrip antenna with a triangular patch. This antenna works on S-band frequency, on 2400-2450 MHz with VSWR ≤ 1.7. To meet a good data transmit ability, the antenna has been designed with gain above 6 dBi, with the transmitting range of 700 km. On the surface of the patch antenna, will be given a gold plating to extend the life of the antenna from corrosion. From the measurement results, obtained values of VSWR is 1.150 at center frequency in 2.425 GHz for the antenna with the gold plat. Gain obtained from the measurements is 6.120 dBi. This antenna has a transmit pattern of unidirectional and polarized elliptical, circular approach.