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- Ribbenfjärd, David, et al.
(författare)
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Omnidirectional Vehicle Antenna for Measurement of Radio Coverage at 2 GHz
- 2004
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Ingår i: IEEE Antennas and Wireless Propagation Letters. - 1536-1225. ; 3:1, s. 269-272
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Tidskriftsartikel (refereegranskat)abstract
- To accurately determine radio coverage, it is necessary to have an omnidirectional antenna pattern. Our measurement results show that this is not the case for an antenna mounted on a vehicle. We present two improved antenna solutions with an additional ground plane in the form of a disk and a corrugated cone. The peak-to-peak variation in the horizontal plane is then reduced from 5 to 2.5 dB and 1.7 dB, respectively. Although our results are limited to a medium-size vehicle and frequencies around 2 GHz, we believe that they are of interest for all measurements where high accuracy is desired.
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