Title :
Design and Implementation of Ground Station Antennas for UAV Data Radio Link in UHF Band
Author :
Firouzeh, Z.H. ; Moradian, Masoumeh ; Safari-Hajat-Aghaei, A. ; Mir-Mohammad-Sadeghi, H.
Author_Institution :
Inf. & Commun. Technol. Inst., Isfahan Univ. of Technol.
Abstract :
In this paper, design and implementation of ground station (GS) antennas are presented to control UAV by use of data radio link between UAV and GS based on spread spectrum in frequency band of 780-880MHz at the maximum range of 100Km. Gain, frequency bandwidth, polarization, radiation pattern, and the height of installed antenna from the ground are very important in regard to UAV maneuver and desired range. Helix and omni-directional antennas are designed and implemented to cover short and long ranges. Helix is designed based on Emerson´s relations and optimized by IE3D to match to 50Omega in frequency range of 100MHz by new stub-loaded method. Monopole antenna is designed and optimized by Fidelity software. After implementation, measurement results are in a good agreement with the simulation. Then, we demonstrate how we can dominate the ground effect and multipath effect by use of two-antenna system
Keywords :
UHF antennas; antenna radiation patterns; helical antennas; monopole antennas; radio links; remotely operated vehicles; spread spectrum communication; 100 km; 50 ohm; 780 to 880 MHz; Fidelity software; UAV data radio link; UHF band; frequency bandwidth; frequency polarization; ground station antennas; helix antennas; monopole antenna; omnidirectional antennas; radiation pattern; spread spectrum; Bandwidth; Design optimization; Frequency; Helical antennas; Radio control; Radio link; Satellite ground stations; Spread spectrum communication; UHF antennas; Unmanned aerial vehicles;
Conference_Titel :
Information and Communication Technologies, 2006. ICTTA '06. 2nd
Conference_Location :
Damascus
Print_ISBN :
0-7803-9521-2
DOI :
10.1109/ICTTA.2006.1684746
