A Modified Radiometric Method for Measuring Antenna Radiation Efficiency
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AbstractRadiation efficiency of antennas is shown to be measurable by a modified radiometric technique where the antenna's physical temperature is varied, rather than the noise temperature of its surroundings. The method is accurate, flexible and much more convenient for routine use. A means of avoiding errors caused by temperature-dependent antenna impedance is described. The accuracy of the method is verified by measuring the radiation efficiency of a horn antenna with a 3 dB attenuator to simulate a 50% efficient antenna, and by using microstrip patch antennas, whose measured efficiencies compared well with values computed from a transmission-line model.
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CitationMcEwan, N.J., Abd-Alhameed, R.A., Abidin, M.N.Z. (2003). A Modified Radiometric Method for Measuring Antenna Radiation Efficiency. IEEE Transactions on Antennas and Propagation. Vol. 51, No. 8, pp. 2099- 2105.
Link to publisher’s version10.1109/TAP.2003.815407
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