Dual-frequency balun to decrease influence of RF feed cables in small antenna measurements

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Dual-frequency balun to decrease influence of RF feed cables in small antenna measurements

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A dual-frequency balun applied in connection with measurements of small dual-frequency antennas reduces parasitic currents on the surface of the RF feed cable, so that the influence of the RF measurement cable on the radiation pattern is minimised.

Inspec keywords: antenna testing; antenna radiation patterns; baluns; antenna feeds

Other keywords: small antenna measurements; RF feed cables; radiation pattern; RF measurement cable; parasitic currents; dual-frequency balun

Subjects: Antenna accessories; Waveguide and microwave transmission line components

References

    1. 1)
      • C. Icheln , M. Popov , P. Vainikainen , S. He . Optimal reduction of the influence of RFfeed cables in small antenna measurements. Microw. Opt. Technol. Lett. , 3 , 194 - 196
    2. 2)
      • C. Icheln , J. Ollikainen , P. Vainikainen . Reducing the influence of feed cables on smallantenna measurements. Electron. Lett. , 15 , 1212 - 1214
    3. 3)
      • Saario, S., Thiel, D.V., Lu, J.W., O'Keefe, S.G.: `An assessment of cable radiation effectson mobile communications antenna measurements', Proc. 1997 IEEE Int.Symp. Antennas Propagat., 1997, Montreal, Canada, p. 550–553.
    4. 4)
      • DeMarinis, J.: `The antenna cable as a source of error in EMI measurements', Proc. 1988 IEEE Int. Symp. on EMC, 1988, Seattle, Washington, p. 9–14.
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