Effect of External Antenna Patterns for a GMR-1 3G Handset on Satellite Forward Link Radio Channels
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Abstract
Based on the measurements for a GEO-mobile radio-1 third generation (GMR-1 3G) handset with different external antennas in free space as well as with the head and hand setups, effects of the antenna patterns on a satellite forward link radio channel are studied in this paper. When merging the antenna gain patterns into Rayleigh and Ricean channels proposed in GMR-1 3G standard, it’s found that the received power in satellite forward link has big deviation from original Rayleigh and Ricean distributions. At the same time, the performances for different external antennas are evaluated, it’s found that helix octafilar with 16 mm diameter is much better than other external antennas which are aimed to be directed to a specific angular range in the elevation plane for a geo-satellite mobile system.
Keywords
GMR-1 3G Antenna pattern Rayleigh Rice Radio channel Signal powerNotes
Acknowledgements
This work is supported by the Department of Science and Technology, State Grid, China. Thank Mr. Liang Li for helping us to format the final version of this paper.
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