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Zener-diode noise generators

Zener-diode noise generators

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© The Institution of Electrical Engineers
Published

Zener diodes operated in the breakdown region have been investigated as transfer noise standards in the r.f. region. A close correlation has been found between the variation in excess noise ratio (e.n.r., dB) and the temperature coefficient of Zener diodes. In particular, diodes having zero temperature coefficient of voltage also have zero temperature coefficient of e.n.r.

Inspec keywords: Zener diodes; measurement standards; noise generators; electrical impedance measurement

Other keywords: breakdown region; noise generators; temperature coefficient; Zener diodes; transfer noise standards

Subjects: Junction and barrier diodes; Other electric variables measurement; Measurement standards and calibration; Measurement standards and calibration

References

    1. 1)
      • J. Millman , C.C. Halkias . , Electronic devices and circuits.
    2. 2)
      • D.L. Hollway , P.I. Somlo . Stable broadband variable noise source for microwave radiometry. Electron. Lett. , 24 - 25
    3. 3)
      • D.E. Susans . Semiconductor-diode v.h.f. and u.h.f. noise sources. Electron. Lett. , 72 - 73
    4. 4)
      • D.E. Susans . Noise calibrator for v.h.f. and u.h.f. field-strength-measuring receivers. Electron. Lett. , 354 - 355
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