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Wideband indoor channel characterisation using microstrip patch antennas at 1.95 GHz with different antenna height configurations

Wideband indoor channel characterisation using microstrip patch antennas at 1.95 GHz with different antenna height configurations

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Results highlighting the improvement in power loss factor n, RMS delay spread and correlation with distance of the indoor channel employing microstrip patch antennas mounted in an optimised height configuration are presented. Extensive power delay profile measurements with four different antenna height configurations in two laboratory environments were conducted using a vector network analyser at 1.95 GHz. Analysis of the measurement results shows improvement of n values from 2.9 to 2 and median RMS delay spread of 10.4 ns to 6.2 ns with changes of antenna configuration.

Inspec keywords: delays; power measurement; telecommunication channels; wireless LAN; microstrip antennas; UHF measurement; antenna testing; indoor radio; UHF radio propagation

Other keywords: 1.95 GHz; UHF; power delay profile measurements; power loss factor; microstrip patch antennas; optimised height configuration; antenna height configurations; indoor channel distance; vector network analyser; wideband indoor channel characterisation; RMS delay spread

Subjects: Testing; Manufacturing processes; Measurement; Production facilities and engineering; Computer communications; Microwave measurement techniques; Single antennas; Radiowave propagation; Power and energy measurement

References

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      • Davies, R., Beach, M.A., McGeehan, J.P.: `Wireless propagation measurements inindoor multipath environments at 1.7 GHz and 60 GHz for small cell systems', IEEE Vehicular Technology Conf. Proc., May 1991, p. 589–593.
    2. 2)
      • Nobles, P., Ashworth, D., Halshall, F.: `Indoor radiowave propagationmeasurements at frequencies up to 20 GHz', IEEE Vehicular Technology Conf. Proc., 1994, 2, p. 873–877.
    3. 3)
      • Wong, M.T., Law, C.L.: `Wideband impulse response of indoor channel at 2 GHz usingdirective patch antennae', IEEE SICON/ICIE '95 Proc., July 1995, p. 532–536.
    4. 4)
      • HIPERLAN, ETSI RES-10.
    5. 5)
      • Rappaport, T.S., Hawbaker, D.A.: `Effects of circular and linear polarizedantennas on wideband propagation parameters in indoor radio channels', IEEE GLOBECOM'91 Proc., 1991, p. 1287–1291.
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