E4416A_E4417A EPM-P Series Power Meters and E-Series E9320 Peak and Average Power Sensors.pdf - 第3页

Find us at www.keys ight.com Page 3 Single Sensor Dynamic Range E- series E9320 pea k and average power sensors 70 dB maximum (normal mode) 85 dB maximum (average only mode) E- series CW power sensors 90 dB E- series E93…

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EPM-P Power Meter Specifications

Specifications describe the instrument’s warranted performance and apply after a 30 minute warm-up.

These specifications are valid over its operating and environmental range unless otherwise stated and

after performing a zero and calibration procedure.

Supplemental characteristics are intended to provide additional information; useful in applying the

instrument by giving typical (expected), but not warranted performance parameters. These

characteristics are shown in italics

or labeled as ‘typical’, ‘nominal’ or ‘approximate’.

Measurement uncertainties information can be found in, Fundamentals of RF and Microwave Power

Measurements, Application Note, literature number 5965-6630E.

Compatibility, the EPM-P series power meters operate with the E-series E9320 family of power sensors

for peak, average and time-gated power measurements. The EPM-P series also operates with the

existing 8480 and N8480 series, E-series CW and the E9300 range of power sensors for average power

measurements. For specifications pertaining to the 8480 and E-series CW and E9300 power sensors,

please refer to the EPM Series Power Meters, E-Series and 8480 Series Power Sensors, Technical

Specification, literature number 5965-6382E. For specifications pertaining to the N8480 series power

sensors, please refer to the N8480 Series Thermocouple Power Sensors, Technical Specification,

literature number 5989-9333EN.

Measurement modes, the EPM-P series power meters have two measurement modes:

•

Normal mode (default mode using E9320 sensors) for peak, average and time-related

measurements, and

•

Average only mode. This mode is primarily for average power measurements on low-level

signals, when using E9320 sensors, and is the mode used with 8480 and N8480 series

sensors, E-series CW sensors and E-series E9300 sensors.

Frequency range: 9 kHz to 110 GHz, sensor dependent

Power range: –70 to +44 dBm, sensor dependent

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Single Sensor Dynamic Range

E-series E9320 peak and average

power sensors

70 dB maximum (normal mode)

85 dB maximum (average only mode)

E-series CW power sensors

90 dB

E-series E9300 average power

sensors

80 dB maximum

8480 series sensors

50 dB maximum

N8480 series sensors

55 dB maximum

Display units

Absolute

Watts or dBm

Relative

Percent or dB

Display resolution Selectable resolution of 1.0, 0.1, 0.01, 0.001 dB in logarithmic mode,

or 1 to 4 significant digits in linear mode

Offset range

± 100 dB in 0.001 dB increments, to compensate for external loss or gain

Video bandwidth

5 MHz (set by meter and is sensor dependent)

Note that the video bandwidth represents the ability of the power sensor and meter to follow the power

envelope of the input signal. The power envelope of the input signal is, in some cases, determined by

the signal’s modulation bandwidth, and hence video bandwidth is sometimes referred to as modulation

bandwidth.

Video bandwidth/dynamic range optimization

The power measurement system, comprising the sensor and meter, has its maximum video bandwidth

defined by the E9320 sensor. To optimize the system’s dynamic range for peak power measurements,

the video bandwidth in the meter can be set to High, Medium and Low, as detailed in the following table.

The filter video bandwidths stated in the table are not the 3 dB bandwidths as the video bandwidths are

corrected for optimal flatness. Refer to Figures 6 to 8 for information on the sensor’s peak flatness

response. A filter OFF mode is also provided.

Table 1. Video bandwidth versus peak power dynamic range.

Sensor model Video bandwidth/Max peak power dynamic range

OFF

High

Medium

Low

E9321A

300 kHz/–40 dBm to +20 dBm 300 kHz/–42 dBm to +20 dBm 100 kHz/–43 dBm to +20 dBm 30 kHz/–45 dBm to +20 dBm

E9325A

E9322A

1.5 MHz/–37 dBm to +20 dBm 1.5 MHz/–38 dBm to +20 dBm 300 kHz/–39 dBm to +20 dBm 100 kHz/–39 dBm to +20 dBm

E9326A

E9323A

5 MHz/–32 dBm to +20 dBm 5 MHz/–32 dBm to +20 dBm 1.5 MHz/–34 dBm to +20 dBm 300 kHz/–36 dBm to +20 dBm

E9327A

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Accuracy

Instrumentation

Please add the corresponding power sensor linearity percentage; see Tables 6a and 6b for the E9320

sensors.

Average only mode

Absolute

Logarithmic

± 0.02 dB

Linear

± 0.5%

Relative

Logarithmic

± 0.04 dB

Linear

± 1.0%

Normal mode Calibration temperature

± 5 °C Temperature 0 to 55 °C

Absolute accuracy (log)

± 0.04 dB

± 0.08 dB

Absolute accuracy (linear)

± 0.8%

± 1.7%

Relative accuracy (log)

± 0.08 dB

± 0.16 dB

Relative accuracy (linear)

± 1.6%

± 3.4%

Time base accuracy

0.01%

1 mW power reference

Power output 1.00 mW (0.0 dBm). Factory set to ± 0.5% traceable to the National Physical

Laboratories (NPL), UK

Accuracy For two years

± 0.5% (23 ± 3 °C)

± 0.6% (25 ± 10 °C)

± 0.9% (0 to 55 °C)

Frequency

50 MHz nominal

SWR

1.06 maximum (1.08 maximum for Option E41xA-003)

Connector type

Type N (f), 50 ohms

1 Power meter is within ± 5 °C of its calibration temperature.

2 National metrology institutes of member states of the Metre Convention, such as the National Institute of Standards

and Technology in the USA, are signatories to the ComitÈ International des Poids et Mesures Mutual Recognition

Arrangement. Further information is available from the Bureau International des Poids et Mesures, at

http://www.bipm.fr/