1 Introduction
10 U2000 Series Operating and Service Guide
This technique will ensure the diodes in the selected signal path are kept in
their square law region, thus the output current (and voltage) is proportional
to the input power. The diode pair/attenuator/diode pair assembly can yield
the average of complex modulation formats across a wide dynamic range,
irrespective of the signal bandwidth. The dual range Modified Barrier
Integrated Diode (MBID)
1
package includes further refinements to improve
power handling allowing accurate measurement of high level signals with high
crest factors without incurring damage
2
to the sensor.
These sensors measure average RF power on a wide variety of modulated
signals and are independent of the modulation bandwidth. They are ideally
suited to the average power measurement of multi- tone and spread spectrum
signals such as CDMA, W- CDMA and digital television formats.
1
November 1986 Hewlett-Packard Journal pages 14-2, “Diode Integrated Circuits for
Milimeter-Wave Applications.
2
Refer to“Maximum Power” on page 42 for maximum power handling specifications.
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