Data Sheet Excellent broadband flatness broadband High burnout protect

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Data Sheet Excellent broadband flatness broadband High burnout protect

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Agilent 423B, 8470B, 8472B, 8473B/C Barrier Schottky Diode Detectors
Data Sheet Excellent broadband flatness broadband High burnout protection Environmentally rugged Field replaceable diode elements
Agilent 423B
Agilent 8470B
Figure Diode characteristics.
Agilent 8472B
Agilent offers complete family high performance Barrier Schottky Diode Detectors which cover 26.5 frequency range. These general purpose components widely used pulsed power detection, leveling sweepers, frequencyresponse testing other microwave components. These detectors require bias used with common oscilloscopes, thus their simplicity operation excellent broadband performance make them useful measurement accessories. These detectors Low-Barrier Schottky Diode (LBSD), specially fabricated with origin resistance junction capacitance. This results improved broadband flatness over point-contact diode detectors, thus yielding more accurate measurements. These detectors also offer very good ruggedness burnout protection. with Agilent detectors, these models integrate diode with other circuit elements thus minimizing stray reactances optimizing broadband performance. economical field repair, replaceable detector modules available.
Agilent 8473B
Agilent 8473C
Field-replaceable detector elements
event diode burnout, field-replaceable detector elements available economical customer repair. critical components supplied (and tested) integrated unit, with mount playing only minor role determining frequency response SWR. following table lists field-replaceable detector modules that have been tested their respective specifications. Agilent model 423B 8470B 8472B 8473B 8473B 8473B 8473C 8473C 8473C Agilent replacement part number 00423-60003 08470-60012 08470-60012 08473-80001 08473-80002 08473-80003 08473-80004 08473-80005 08473-80006
Figure Detector frequency response specifications.
Figure Detector specifications.
Figure Drawing dimensions given specification table.
Figure Measurement uncertainty detector source mismatch.
Figure Typical detector square-law response.
Specifications
Specifications1 Frequency range2 Frequency response Octave band flatness (over octave GHz) Broadband flatness Agilent 423B 0.01 12.4 ±0.2 Agilent 8473B 0.01 ±0.2 Agilent 8473C 0.01 26.5 ±0.2 Agilent 8470B 0.01 ±0.2 Agilent 8472B 0.00 ±0.2
0.01 12.4 GHz: ±0.3
0.01 12.4 GHz: ±0.3 0.01 12.4 GHz: ±0.3 0.01 GHZ: ±0.6 0.01 GHz: 26.5 GHz: ±1.5 0.01 GHz: ±0.6 from linear slope 0.01 GHz: GHz: 26.5 GHz: watt (typical) >0.5 mV/µW 0.01 GHz: GHz: GHz: watt (typical)
0.01 12.4 GHz: ±0.3 0.01 12.4 GHz: ±0.3 0.01 GHz: ±0.5 0.01 GHz: ±0.5 0.01 GHz: ±0.6 0.01 GHz: 1.15 GHz: 1.30 12.4 GHz: 1.50 12.4 GHz: 1.70 watt (typical) 0.01 GHz: 1.20 GHz: 1.35
SWR3, maximum 0.01 GHz: 1.15 characteristic impedance) 12.4 1.30
Maximum operating input (Peak average) Short- term maximum Input (less than min.) Sensitivity4
watt (typical) >0.5 mV/µW
watt (typical) >0.5 mV/µW
0.01 GHz: >0.5 mV/µW >0.5 mVµW 26.5 GHz: >0.1 mV/µW
Noise peak-to-peak with power applied produce output) Environmental qualifications Operating temperature Vibration G's, 2000 Shock G's, Output polarity Input connector Output connector Video impedance bypass capacitor Dimensions (inches) Length Diameter Weight grams (oz) Shipping Option Matched response Must order quantity standard units with quantity 001's pair detectors with matched frequency response Option Optimum square-law load Option Positive polarity Negative Type Male (SMA Compatible) Female (typical) 30pF (typical) (2.47) (038) (16) Tracking: 0.01 12.4 GHz: ±0.2
+85° G's, 2000 G's, Negative Male (SMA Compatible) Female (typical) (typical) (1.89) (0.39) (0.5) (16)
+85° G's, 2000 G's, Negative Male Type Male/Option Female (typical) (typical) (1.89) (0.39) (0.5) (16)
+85° G's, 2000 G's, Negative APC-7 Female (typical) (typical) (2.50) (0.75) (16)
+85° G's, 2000 G's, Negative Male Female (typical) (typical) (2.50) (0.56) (16)
Tracking: Tracking: 0.01 12.4 GHz: ±0.2 0.01 12.4 GHz: ±0.2 12.4 GHz: ±0.3 12.4 GHz: ±0.3 26.5 GHz: ±0.5
Tracking: Tracking: 0.01 12.4 GHz: ±0.2 0.01 12.4 GHz: ±0.2 12.4to GHz: ±0.3 12.4to GHz: ±0.3
Optimum square -Law load Positive polarity Output
Optimum square -Law load Positive polarity Output
Optimum square -Law load Positive polarity Output
Positive polarity Output
Positive polarity Output
Specifications given +25° unless otherwise noted. Specifications describe instrument's warranted performance. Supplemental characteristics italics) intended provide information useful applying instrument giving typical, warranted, performance parameters. leak through video connector especially below GHz; objectionable, this eliminated with low-pass filter. measured dBm. Sensitivity decreases with increasing temperature typically from +25° from +25° +40v from +40° +55° 1.25 from +55° +75° from +75° +85°
Applications
These detectors used wide variety applications ranging from production measurements systems components. Because their flatness match, these detectors used accurately measuring transmission reflection characteristics swept-frequency measurements. these applications which both flat-frequency response square-law characteristics important, Option provides matched pair detectors that track each other within tenths Option (external square-law load) extends square-law region least dBm). Other common applications include with coupler power splitter externally level source, display pulsed-RF AM-modulated signals. systems applications, broadband flatness ruggedness these detectors make them particularly well suited closed-loop leveling circuits microwave instrumentation.
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Square-law response
many reflection transmission measurements desirable detector square-law region where output voltage proportional input power. shown figure LBSD typically operate within square-law from tangential signal sensitivity (TSS) level dBm. specifying Option 002, specially selected loading resistor provided which extends this square-law region approximately with associated decrease sensitivity shown figure
Pulse response
LBSD detectors have extremely good pulse detection characteristics when working into low-capacitance, low-resistance loads. When loaded externally with LBSD detector typically display rise times. Figure illustrates equivalent circuit detector, well typical values diode impedance bypass capacitor.
Figure Detector equivalent circuit.
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Product specifications descriptions this document subject change without notice. Agilent Technologies, Inc. 1990, 2001 Printed USA, August 2001 5952-8299

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