Which of the following principle is mainly used in frequency independent antennas?(a) Rumsey’s principle(b) Fabry perot(c) Brewster law(d) Archimedes principleThe question was posed to me in examination.Asked question is from Frequency Independent Antenna in chapter Frequency Independent Antenna of Antennas

Which of the following principle is mainly used in frequency independe

1.	Which of the following principle is mainly used in frequency independent antennas?(a) Rumsey’s principle(b) Fabry perot(c) Brewster law(d) Archimedes principleThe question was posed to me in examination.Asked question is from Frequency Independent Antenna in chapter Frequency Independent Antenna of Antennas
Answer» Right answer is (a) Rumsey’s principle Explanation: Rumsey’s principle is used in the frequency INDEPENDENT antennas states that the impedance & pattern of antenna is frequency independent if antennasize is specified in terms of angle. Fabry perot is used with optical WAVES where RAYS are passed only when they are in resonance. Brewster law gives the RELATION to MAXIMUM polarization of light.

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