Waveguide Power Sensors
DATA SHEET
Make accurate and reliable measurements in the 50 to 110 GHz frequency range
with Keysight’s family of waveguide power sensors
Covering the V-band, E-band and W-band spectrums, the Keysight Technologies, Inc. waveguide power sensors offer best SWR, high
reliability and low loss, and come with a 50 MHz calibration port to reduce measurement uncertainties. And with the Keysight E8486A
(Option 200) waveguide sensor, you also get a wide dynamic range spanning from –60 to +20 dBm.
Compatible with your current Keysight power meter
Keysight waveguide power sensors are fully compatible with Keysight EPM (E4418B/19B, N1913A/14A), EPM-P (E4416A/17A) and
P-Series (N1911A/12A) power meters. The V8486A and W8486A are also compatible with the discontinued or obsolete power meters
such as 435B, 436A, 437B, 438A, 70100A, E1416A, E4418A, and E4419A power meters.
Best SWR available
In RF and microwave power measurements, the largest single source of error is usually sensor and source mismatch. To minimize any
measurement uncertainty caused by mismatch, Keysight waveguide sensors offer excellent SWR of 1.06 (> 30 dB return loss).
50 MHz calibration
For easy calibration with the power meter, Keysight waveguide power sensors incorporate a 50 MHz calibration port. This eliminates
the variance in making measurements with different meter/sensor combinations and the uncer tainties due to temperature changes. It
also provides traceability to the U.S National Institute of Standards and Technology (NIST) at millimeter-wave frequencies.
High reliability
Keysight waveguide sensors use the same proven Modified Barrier Integrated Diode (MBID) technology found in other Keysight sensors,
and always operates in the square-law characteristic for true-average detection.
Waveguide power sensors comparison table
Model Frequency range Power linearity
E8486A-100 60 to 90 GHz –30 to +10 dBm: < ± 1% 200 mW avg, 40 W pk
+10 to +20 dBm: < ± 2%
+10 to +20 dBm: <+1, –3%
E8486A-200 60 to 90 GHz –60 to –30 dBm: < ± 1.5% 200 mW avg, 1 W pk
–30 to +10 dBm; < 1.5%
+10 to +20 dBm: < ± 1.5%
V8486A 50 to 75 GHz –30 +10 dBm: (± 1%) 200 mW avg, 40 W pk
+10 to +20 dBm: (± 2%)
W8486A 75 to 110 GHz ± 2% 200 mW avg, 40 W pk
1. Negligible deviation except for those power ranges noted.
2. For EPM series power meters.
3. For all other Keysight power meters.
1
2
3
Maximum power Connector type
Waveguide flange:
(10.μs per pulse, 0.5% duty cycle)
(10.μs per pulse, 0.5% duty cycle)
(10.μs per pulse, 0.5% duty cycle)
(10.μs per pulse, 0.5% duty cycle)
UG-387/U Flange, EIA WR-12
Waveguide flange:
UG-387/U Flange, EIA WR-12
Waveguide flange:
UG-385/U
Waveguide flange:
UG- 3 87/U
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E8486A E-Band Waveguide Power Sensor
Figure 1. E8486A-100 comes without built-in EEPROM. Users need to pre-enter calibration factors printed on the
back of the sensor into the power meter.
Figure 2. E8486A-200 comes with built-in EEPROM to store calibration factors.
Meet the rapid demand in E-band telecommunication applications with the E8486A waveguide power sensor. Designed with a WR-12
flange connector, the E8486A makes precise and direct waveguide measurements in the E-band frequency range and is compatible
with most Keysight power meters. A wide dynamic range of -60 to +20 dBm and a SWR performance of 1.06 minimize measurement
uncertainty caused by mismatch, providing high accuracy even with low power signals. With the E8486A waveguide power sensor, get
the precision and accuracy you need for E-band applications in a single power sensor.
Specifications
Power range Option 100: 1 μW to 100 mW (–30 to +20 dBm)
Frequency range
1
Calibration factor input Option 100: Does not include EEPROM. Users need to pre-enter calibration factors into the power meter; the
Maximum SWR Option 100: < 1.06
Maximum SWR at 50 MHz Option 100: < 1.066
Maximum power (damage level) Option 100: 200 mW avg, 40 W pk (10.μs per pulse, 0.5% duty cycle)
Power linearity Option 100: –30 to +10 dBm: < ± 1%
Zero set Option 100: < ± 200 nW
1. Option 201 is a standard E8486A-200 that has been calibrated at an extended frequency (54 to 95 GHz). Refer to E8486A Option 201 Product Note
(E8486-90701) for more details.
2. For EPM series power meters.
3. For all other Keysight power meters.
Option 200: 1 nW to 100 mW (–60 to +20 dBm)
60 to 90 GHz
calibration factor label will be provided on the power sensor unit.
Option 200: Comes with EEPROM to store calibration factors. Users simply need to input the frequency and the
correct calibration factor will be applied.
Option 200: < 1.28
Option 200: < 1.077
Option 200: 200 mW avg, 1 W pk ( 10.μs per pulse, 0.5% duty cycle)
+10 to +20 dBm: < ± 2%
+10 to +20 dBm: < +1, –3%
2
3
Option 200: –60 to –30 dBm: < ± 1.5%
–30 to +10 dBm; < 1.5%
+10 to +20 dBm: < 1.5%
Option 200: < ± 200 pW
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E8486A E-Band Waveguide Power Sensor
Specifications (Continued)
Measurement noise Option 100: < 450 nW
Option 200: < 450 pW
Zero drift Option 100: < ± 40 nW
Option 200: < ± 40 pW
Connector type 50 MHz calibration port: Type N (male), 50 Ω nominal impedance
Waveguide flange: UG-387/U Flange, EIA WR-12
Net weight Net: 0.4 kg (0.9 lb)
Shipping: 1 kg (2.2 lb)
Dimensions 38 mm (w) x 199 mm (l) x 60 mm (h)
Mechanical Characteristic
Mechanical characteristics such as center conductor protrusion and pin depth are not performance specifications. They are, however,
important supplemental characteristics related to electrical performance. At no time should the pin depth of the connector be
protruding.
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V8486A V-Band Waveguide Power Sensor
Figure 3. V8486A comes without built-in EEPROM. Users need to pre-enter calibration factors printed on the back of the sensor into the power meter.
Make accurate average power measurements from 50 to 75 GHz with the V8486A V-band power sensor.
Specifications
Power range –30 to +20 dBm
Frequency range 50 to 75 GHz
Maximum SWR < 1.06
Maximum SWR at 50 MHz < 1.073
Maximum power (waveguide port only) 200 mW average, 40 W peak (10 μs pulse, 0.5% duty cycle) or equivalent such that 200 mW maximum
average power and 40 W peak power are not exceeded
Power linearity
Zero set < ± 200 nW
Measurement noise < 450 nW
Zero drift < ± 40 pW
Connector type EIA WR-15, UG-385/U
Equivalent waveguide band designators to EIA
WR-15
Equivalent flange designator to UG-385/U MIL-F-39 2 2/ 67 B -0 02
–30 to +10 dBm: < ± 1%
+10 to +20 dBm: ± 2% (for EPM series power meters)
+10 to +20 dBm: < +1, –3% (for all other Keysight power meters)
IEC R-620
British WG-25
JAN RG-273
MIL-W -8 5/ 3- 018
A special option for the V8486A that extends the power range down to –60 dBm is available. Contact your local Keysight field engineer or sales office
for more information.
Mechanical characteristic
Mechanical characteristics such as center conductor protrusion and pin depth are not performance specifications. They are, however,
important supplemental characteristics related to electrical performance. At no time should the pin depth of the connector be
protruding.
Find us at www.keysight.com
Page 5
W8486A W-Band Waveguide Power Sensor
Figure 4. W8486A comes without built-in EEPROM. Users need to pre-enter calibration factors printed on the back of the sensor into the power meter.
The W8486A waveguide power sensor measures average power over the frequency range 75 to 110 GHz and power range –30 to
+20 dBm.
Specifications
Power range –30 to +20 dBm
Frequency range 75 to 110 GHz
Maximum SWR < 1.08
Maximum SWR at 50 MHz < 1.076
Maximum power (waveguide port only) 200 mW average, 40 W peak (10 μs pulse, 0.5% duty cycle) or equivalent such that 200 mW maximum
average power and 40 W peak power are not exceeded
Power linearity
Zero set
Measurement noise < 450 nW
Zero drift < ± 40 pW
Weight Net: 0.4 kg (0.9 lb)
Connector type Waveguide flange: UG-387/U
(± 2%)
< ± 200 nW
Shipping: 1.0 kg (2.2 lb)
1. A special option for the V8486A that extends the power range down to –60 dBm is available. Contact your local Keysight field engineer or sales office for
more information.
Mechanical characteristic
Mechanical characteristics such as center conductor protrusion and pin depth are not performance specifications. They are, however,
important supplemental characteristics related to electrical performance. At no time should the pin depth of the connector be
protruding.
Find us at www.keysight.com
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Ordering Information
Model Description
E-Band E8486A-100 E-band power sensor, 60 to 90 GHz, –30 to +20 dBm
E8486A-200 E-band power sensor, 60 to 90 GHz, –60 to +20 dBm
E8486A-201 E-band power sensor, 54 to 95 GHz, –60 to +20 dBm
V-Band V8486A V-band power sensor, 50 to 75 GHz, –30 to +20 dBm
W-Band W8486A W-band power sensor, 75 to 110 GHz, –30 to +20 dBm
Standard shipped accessories
Hex ball driver
Waveguide mounting screws
User’s and Service Guide, English
Calibration cycle
1 year
Learn more at: www.keysight.com
For more information on Keysight Technologies’ products, applications or services,
please contact your local Keysight office. The complete list is available at:
www.keysight.com/find/contactus
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This information is subject to change without notice. © Keysight Technologies, 2013 - 2019, Published in USA, July 31, 2019, 5991-3676EN
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