Effect of mismatch on antenna gain measurement by Purcell's method

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Effect of mismatch on antenna gain measurement by Purcell's method

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© The Institution of Electrical Engineers
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The measurement of the power gain of an antenna by Purcell's method demands that the antenna be matched to its waveguide feed with a VSWR of typically 1.01. The letter shows how, using an extension of this method, the measurement may be carried out without this restriction.

Inspec keywords: antennas; antenna feeders; gain measurement

Other keywords: waveguide feed; VSWR; Purcell's method; antenna gain; power gain; mismatch

Subjects: Phase and gain measurement; Antennas

References

    1. 1)
      • S. Silver . (1949) , Microwave antenna theory and design.
    2. 2)
      • A.B. Pippard , O.J. Burrell , E.E. Cromie . The influence of re-radiation on measurements of the power gain of an aerial. J. IEE , 720 - 722
    3. 3)
      • H.M. Barlow , A.L. Cullen . (1950) , Microwave measurements.
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