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
I
Typical
Agilent 423B
Agilent 8470B
50 µA/div
LBSD
Typical
Schottky
Diode
V
50 mV/div
Figure 1. Diode V/I characteristics
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.
Agilent 8472B
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.
Agilent 8473B
Agilent 8473C
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