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Diode detectors for RF measurement
| Note: The pdf article by DWK given below gives a detailed discussion of the various possible diode detector configurations; but as pointed out by Dr Denis Jaisson, the formulae developed from p44 onwards are flawed because they rely on a turn-on angle and a forward voltage that cannot be determined rigorously. Instead, it is necessary to apply a transcendental equation for which the solution involves the W0 branch of the Lambert W function. A rigorous demonstration is given in Denis's paper (available from Researchgate) and leads to a set of closed formulae of sufficient simplicity to be entered directly into a spreadsheet.  www.researchgate.net/publication/337921929_Simple_closed_formulae_for_a_RF_diode-detector_with_zero-bias Denis's theory supercedes the theory given below, but the general discussion of detector configurations and history might nevertheless be found informative.  Rectifier
circuits, theory and calculation procedures
(incomplete). + Spreadsheet calculations 
det_models.ods
,Old worksheets IN5711.ods
, det_Rin.ods
. Open document spreadsheets
can be viewed and modified using Open
Office. Measurements using
simple diode detectors:See: RF Bridges, Background theory and experiment. Current transformer efficiency factor. Amplitude response of conventional and maximally-flat current transformers. |
Diode data and application notes
| Agilent Technologies
www.agilent.com/ Agilent
1N5711, 1N5712, 5082-2303, 5082-28xx, 5082-2900.
Schottky Barrier Diodes for General Purpose Applications. AN923:
Schottky Barrier Diode Video Detectors. AN956-4:
Schottky Diode Voltage Doubler. AN956-5:
Dynamic Range Extension of Schottky Detectors. AN956-6:
Temperature Dependence of Schottky Detector Voltage Sensitivity. AN986:
Square Law and Linear Detection. AN987:
Is Bias Current Necessary? AN988:
All Schottky Diodes are Zero Bias Detectors. AN1156:
Diode detector simulation using Agilent Technologies EEsof ADS software. Avago
HSMS-280x series High reverse breakdown (70 VRM ) surface-mount
Schottky diodes and diode arrays. Avago
HSMS-282x series surface-mount Schottky diodes and
diode arrays. Avago Technologies www.avagotech.com/ Agilent
HSMS-285x-series Low threshold surface-mount
Schottky diodes and arrays Pico-Amp
diodes: Vishay Siliconix low reverse-leakage diodes
- now discontinued by SIliconix but available from Linear systems. PAD
series: Linear systems low reverse leakage diodes.Linear Systems www.linearsystems.com/ |
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(glass tube diameter is 4.7 mm. PVC outer sleeve has been removed). Similar to the Sylvania 1N34A and Philips OA50 and OA60 series. |
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