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Noise considerations in active monopoles

Noise considerations in active monopoles

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© The Institution of Electrical Engineers
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Limitations in the noise performance of untuned active monopoles are discussed with respect to their low radiation resistance. The noise performance of tuned active monopoles is analysed and shown to be much superior to the untuned monopole. The method of analysis is based on lumped equivalent circuits for both antenna and amplifier, and a figure of merit for comparing the noise performance of passive and active antennas is proposed. Experimental results for the noise output of λ/20 and λ/10 tuned active monopoles are presented to confirm the analysis

Inspec keywords: equivalent circuits; dipole antennas; lumped parameter networks; electric noise measurement; active networks

Other keywords: figure of merit; passive antennas, dipole antennas; noise performance; noise output; resistance; untuned active monopoles; tuned active monopoles; lumped equivalent circuits; active antennas; SNR; amplifier

Subjects: Other electric variables measurement; Active filters and other active networks; Lumped linear networks; Single antennas

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      • T. Tang , M.W. Gunn . The terminal voltage of a receiving dipole antenna. IEEE Trans. , 307 - 309
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