Agilent 423B, 8470B, 8472B, 8473B/C

Low Barrier Schottky Diode Detectors

Data Sheet

Excellent broadband flatness

Low broadband SWR

High burnout protection

Environmentally rugged

Field replaceable diode elements

Agilent offers a complete family of high performance Low Barrier Schottky Diode

Detectors which cover the 10 MHz to 26.5 GHz frequency range. These general

purpose components are widely used for CW and pulsed power detection,

leveling of sweepers, and frequencyresponse testing of other microwave compo-

nents. These detectors do not require a dc bias and can be used with common

oscilloscopes, thus their simplicity of operation and excellent broadband perfor-

mance make them useful measurement accessories.

These detectors use a Low-Barrier Schottky Diode (LBSD), specially fabricated

with low origin resistance and low junction capacitance. This results in

improved broadband flatness and SWR over point-contact diode detectors,

thus yielding more accurate measurements. These detectors also offer very

good ruggedness and burnout protection. As with all Agilent detectors, these

models integrate the diode with the other circuit elements thus minimizing stray

reactances and optimizing broadband performance. For economical field repair,

replaceable detector modules are available.

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Figure 1. Diode V/I characteristics

50 µA/div

50 mV/div

Typical

LBSD

Typical

Schottky

Diode

I

V

Agilent 423B

Agilent 8470B

Agilent 8472B

Agilent 8473B

Agilent 8473C