Design Of Multiband Microstrp Antenna On Cubesat For Ads-B Communication

Abstrak

Automatic Dependent Surveillance-Broadcast
(ADS-B) is a new technology in aircraft observation that uses the
global positioning system (GPS) to track the position, speed, wind
direction and altitude of the aircraft. The research aims to
compare the results of application simulations and the results of
field measurements. ADSB simulation results return loss -21.13
dB, VSWR 1.2181, gain 0.5 dBi, and axial ratio 3.06. S-Band
antenna simulation, return loss of -15.35 dB, VSWR of 3.89, gain
of 3.88 dBi, and axial ratio of 9.7 dB. The measurement results
obtained for the ADS-B antenna return loss -19.376 dB, VSWR
1.25, gain 2.67 dBi, and axial ratio 1.341 dB. Measurement of the
S-Band antenna return loss is -15.36 dB, VSWR is 1.35, gain is
0.62 dBi and axial ratio is 1.33 dB. In the simulation and
measurement of the ADS-B antenna, a close value is obtained. In
the simulation and measurement of the S-Band antenna, there are
differences in the measurement frequency from 300 MHz to 2700
MHz, while in the simulation it is 2400 MHz. The factor that
affects the difference in results is the material used is not the same
as the material used in the simulation.

Keywords: ADS-B, S-Band, Microstrip Antenna, CubeSat