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Which of the following is Rumsey’s principle?

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Which of the following is Rumsey’s principle?

(a) The impedance & pattern of antenna is frequency independent if antennasize is specified in terms of angle

(b) The impedance & pattern of antenna is frequency dependent if antennasize is specified in terms of angle

(c) The impedance & pattern of antenna is frequency dependent if antennasize is specified in terms of radiated power

(d) The impedance & pattern of antenna is frequency dependent if antennasize is variable

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Question is from Frequency Independent Antenna topic in division Frequency Independent Antenna of Antennas

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Correct answer is (a) The impedance & pattern of antenna is frequency independent if antennasize is specified in terms of angle

The explanation: The frequency independent antennas are fixed in size and operate over wide bandwidth with constant impedance, polarization and pattern. Rumsey’s principle states that the impedance & pattern of antenna is frequency independent if antennasize is specified in terms of angle.

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