Atec Agilent-8757D - Manual (Page 8)

8
Detectors
Agilent 85037 series precision detectors (AC/DC)
The 85037 series precision detectors are designed
specifically for operation with the Agilent 8757D
scalar network analyzer and are not compatible
with the 8757A/E, 8756, or 8755 scalar network
analyzers. These detectors may be used in either
AC or DC detection modes. For improved power
measurement accuracy versus frequency, each
85037 series precision detector includes detector
specific frequency response data, stored in an
internal EEPROM, which is automatically read
by the 8757D. When used in conjunction with the
8757D’s internal power calibrator (Option 002),
these detectors provide the maximum absolute
power measurement accuracy.
Agilent 85025 and 85026 series detectors (AC/DC)
The 85025 and 85026 series detectors are designed
specifically for operation with the Agilent 8757
scalar network analyzer and are not compatible
with either the 8756 or the 8755. The 85025/26
detectors may be used in either AC or DC
detection modes.
General information—coaxial detectors
Impedance: 50 ohms nominal
Maximum input power: +20 dBm (100 mW)
Maximum input voltage: 10 VDC
Dimensions: Cable length is 1.22 m (48 in.)
Weight: Net 0.24 kg (0.5 lb), Shipping 1.0 kg (2.2 lb)
Detector adapters
The Agilent 85025C detector adapters match the
scalar analyzer display to most standard crystal,
silicon, and gallium arsenide detectors. This
enables the user to operate up to 110 GHz with
the Agilent 8757. The 85025C detector adapters
are designed for use with the 8757 only, and can
operate in either AC or DC detection modes.
Maximum measurable input: ±3 V peak
Maximum allowable input: ±10 V peak
Connector: SMA (m)
System accessories
Precision Detector Summary, Agilent 85037 Series 1
For use with the 8757D in either AC or DC detection modes
Frequency Connector Return Frequency
Model range type Dynamic range Frequency loss response 3
85037A 10 MHz to 18 GHz Type-N (m) AC mode +20 to –55 dBm 0.01 to 0.04 GHz 10 dB ±0.35 dB
7 mm 2 DC mode +20 to –50 dBm 0.04 to 18 GHz 20 dB ±0.18 dB
85037B 10 MHz to 26.5 GHz 3.5 mm (m) AC mode +20 to –55 dBm 0.01 to 0.04 GHz 10 dB ±0.35 dB
DC mode +20 to –50 dBm 0.04 to 18 GHz 20 dB ±0.18 dB
18 to 26.5 GHz 18 dB ±0.22 dB
Power Dynamic accuracy 4,5 Absolute accuracy 4,6
Model (50 MHz) Corrected Default Corrected Default
85037A/B 20 dBm ±0.25 dB ±0.40 dB ±0.25 dB ±0.40 dB
10 dBm ±0.11 dB ±0.40 dB ±0.11 dB ±0.40 dB
–30 dBm ±0.11 dB ±0.40 dB ±0.11 dB ±0.40 dB
–40 dBm ±0.40 dB ±0.80 dB ±0.40 dB ±0.80 dB
–50 dBm ±0.85 dB ±1.30 dB ±0.85 dB ±1.30 dB
–55 d8m ±0.85 dB ±1.30 dB — —
Temperature coefficient of linearity: 0.01 dB/°C temperature change after calibration
1. The 85037A/B specifications are only applicable when used with the 8757D
scalar network analyzer.
2. Option 001 changes to 7 mm connector.
3. –10 dBm, 25 ±5 °C
4. The corrected specifications apply after a calibration via the 8757D-002 internal
power calibrator. The default specifications apply when the calibrator is not used.
Power calibrator uncertainty is included in the 85037A/B corrected specifications.
5. Dynamic accuracy refers to measurement accuracy as power varies (in dB) from
a 0 dBm reference. 25 ±5 °C. 50 MHz, calibration and measurement at the same
temperature.
6. DC mode. 25 ±5 °C, calibration and measurement at the same temperature.