Abstract
The design of the dual-band Yagi antenna was developed to support voice communication through voice repeaters on microsatellites in the UHF-VHV frequency from ground stations. The Yagi antenna is a type of half lambda dipole antenna that makes it easy to obtain direction and increase gain. The antenna is designed using the method of moment through a simulation with the CST microwave studio software application. The design used as an antenna element material is a type of copper pipe cylinder. The results of the Yagi antenna design in the VHF frequency consist of one driven element, one reflector element, and three director elements, while the UHF frequency consists of one reflector element and seven directors. The results of simulation parameters are obtained, such as Bandwidth of return loss below 10 dB is 4.3 MHz(VHF), and 44 MHz (UHF), VSWR (2:1) is 1.24 (VHF) and 1.36 (UHF), Gain is 9.19 dBi (VHF) and 10.5 dBi (UHF) and Beam Width is 64 degree (VHF) and 58 degree (UHF). The suitability of the antenna design target is dual-band, and Gain value in UHF is higher than VHF.
Highlights
IntroductionLAPAN-A2 microsatellites have voice communication access technology with the presence of voice repeaters on satellites
Microsatellite technology developed by the National Institute of Aeronautics and Space (LAPAN) Indonesia continues to increase its use in various information and communication needs
LAPAN-A2 Satellite Technology is equipped with a VR application
Summary
LAPAN-A2 microsatellites have voice communication access technology with the presence of voice repeaters on satellites. In line with the development of microsatellite technology in Indonesia, the National Aeronautics and Space Institute (LAPAN), in collaboration with the ORARI organization (Amateur Radio Organization of the Republic of Indonesia) launched the LAPAN-A2 / ORARI [1] satellite. Uplinks are used to send signals to satellites in VHF, and access downlinks are used to send signals from satellites to receivers in UHF The availability of such access must be supported and utilized with the existence of transceiver communication devices on ground stations [2,3]. The purpose of the design of the Yagi antenna is dual-band on the transceiver is to gain access to transmission from the ground station to the satellite repeater load [5,7,8,15]. The target parameter value results from the design of a dual-band antenna, namely: bandwidth from return loss below 10 dB, VSWR (Voltage Standing Wave Ratio) below 2
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