Keysight P-Series Power Meters
Designed For Today’s Demanding Applications
Today’s complex electronic devices have stringent power requirements. Keysight Technologies, Inc. P-Series power meters and sensors deliver the wide bandwidth and high-performance measurements that you need to be confident that your products are meeting their power specifications.
The P-Series power meters have a 30 MHz video bandwidth and 100 M-sample/s continuous sampling rate for fast, accurate, and repeatable power measurements. When these meters are used with the P-Series wideband power sensors, they provide up to 40 GHz frequency coverage, a wide dynamic range, and extensive measurement capability that has been optimized for aerospace/defense, wireless communication, and wireless networking (IEEE 802.11a/b/g) applications.
The P-Series power meters are now LXI (LAN eXtensions for Instrumentation) Class-C compliant instrument which combines the advantages of Ethernet with simplicity and familiarity of GPIB. This helps the test systems designers and integrators to create faster and more efficient systems. With the power of ethernet, the P-Series power meters reduce the time needed to set up, configure and debug test systems.
N1911A single-channel power meter, 9 kHz to 110 GHz (sensor-dependent)
N1921A wideband power sensor, 50 MHz to 18 GHz
Simplified test set up
The P-Series meters are loaded with time-saving features. Predefined test setups for common measurements (see Figure 2) used in radar and wireless communication applications get you started testing, and an easy-to-use menu structure lets you step quickly through measurement sequences.
Once you have started measuring, it’s easier to fine-tune and save the setup for your unique requirements.
With an auto-pulse detect(1) capability, the power meter can automatically trigger from an unknown input signal to display the entire pulse envelope and you’re ready to begin making measurements.
Internal triggering is exceptionally stable in the P-Series meters. Versatile time-gating features include four independent measurement gates. An external triggering capability lets you synchronize your measurements to an external signal, so the power meters can adapt to a wide range of input signal levels to accommodate many different types of incoming signals.
The high-resolution, color display has a graphical user interface with multiple markers and marker functions for easy manual measurements. An IVI-COM driver for the P-Series power meters and sensors facilitates programming in Keysight VEE, LabView, Labwindows, C, C++, and MATLAB environments.
Backward compatibility of the P-Series meters with Keysight's current offering of power sensors gives you numerous options for extending the usefulness of your Keysight power measurement tools. Identical features and measurements performed by the EPM, EPM-P, and P-Series power meters are code compatible, having the same SCPI commands,
A universal line input lets you plug into a supply voltage just about anywhere without any additional hardware or adjustments, and multiple sensor cable length options (1.5 m, 3 m, and 10 m) make it easy to reach out-of-the-way devices in a variety of test environments.
Save your display information using PC and SCPI commands. Screen dumps can be downloaded to a PC in the form of a bit-map. Power versus time trace displays can also be downloaded for further processing or for hardcopy printouts for your log book or your company literature.
Optimized for Radar Testing
If you design or manufacture components and subcomponents for radar systems, you need a way to accurately measure the output power and timing parameters of the radar pulses. The P-Series power meters and sensors provide a cost-effective peak and average power solution that is ideal for the task.
Ideal in the lab and manufacturing
In the lab or on the manufacturing floor, you can use the P-Series power meters and sensors to check that pulses in radar transmit or receive modules conform to a specified amplitude and shape. You can focus your measurements on a single pulse or on a train of hundreds or even thousands of pulses. Use real-time markers and other features to help you determine whether the pulse power is degrading or the pulse shape is changing over time.
Comprehensive measurements are built-in: peak, average, peak-to-average ratio, time, and instantaneous power at markers 1 and 2 (see Figure 3), time measurements comprising rise time, fall time, pulse width, pulse period, duty cycle, time to positive occurrence, time to negative occurrence and pulse repetitive frequency (see Figure 4). While the power meter and sensor combination make an excellent standalone power measurement system, the drivers included in the system make it easy to integrate into other systems in an ATE environment.
Remote capture of up to 10 pulses
For ATE applications, using SCPI commands, you can automatically measure the important time parameters of pulse duration, separation, and period on the capture of up to 10 pulses.
Optimized for Multi-channel Power Amplifier (MCPA) Testing
The base stations that support today’s high-capacity wireless networks must handle a growing number of data channels. Rather than incorporate a separate amplifier for each channel in the system, engineers are streamlining their designs by using multi-channel power amplifiers (MCPAs). If you are designing or manufacturing MCPAs, you need a wide bandwidth tool that can measure the peak and average power or peak-to-average ratio to verify that your product does not exceed maximum power specifications. The P-Series power meters and sensors offer a complete power measurement solution with a 30 MHz bandwidth. It can measure peak and average power of up to six 3G (5 MHz) carriers over a wide –35 to +20 dBm dynamic range, more than enough for power amplifier testing today and in the future.
The P-Series flat video bandwidth helps to ensure the accuracy of your peak and peak-to-average ratio power measurements. Keysight characterizes the P-Series sensors over their specified temperature, frequency, and power ranges. These correction factors are stored in EEPROM, so that along with an average power measurement accuracy specification of ≤ ±0.2 dB (refer to Data Sheet 5989-2471EN) you don’t have to worry about the effects of error on your measurement.
The P-Series power meters provide four independent time gates (A1-A4) in a single measurement setup (see Figure 5) so you can choose where you locate your measurements of peak, average, and peak-to-average ratio on the trace.
Optimized for Wireless LAN Testing
If you are designing wireless LAN (IEEE 802.11a/b/g) or WiMAX (802.16e) components and subsystems, you will need to analyze burst signals. With 30 MHz of video bandwidth, the P-Series power meters and sensors can capture signal bursts and measure the peak-to-average ratio of the transmitted power in your WLAN or WiMAX products.
By measuring the signal’s rise time and checking the burst profile, you can identify any power transitions that could cause interoperability problems. Measuring the peak-to-average ratio and CCDF enable you to verify that a power amplifier isn’t clipping.
Versatile for R&D and manufacturing
In component manufacturing, time is always money. This is true in the high volume production of wireless network devices and products where fast measurement speed is essential to maximize throughput. Minutes can be shaved from overall test times by combining the internal zero and calibration capability with the fast measurement speeds achieved through your choice of I/O interface (LAN, USB, and GPIB) for data transfer.
A - Half-rack width, 2 U height makes this instrument ideally sized for automated test environments.
B - Large, high-resolution color LCD has back-lighting that provides a wide angle for viewing the displayed data.
C - Full-screen graphical display has three display modes: power versus time, numeric readout, and pseudo-analog display.
D - Display keys let you select the display format for the active window, either single or split-screen formats. Two horizontal windows show the trace display (power versus time) in several formats, a large 1- or 4-line numeric display or an analog display.
E - Hardkeys provide access to the most frequently used functions, such as Trigger and Acquisition.
F - Softkey menus have been simplified so that you can more readily configure the meter to meet your specific measurement needs.
– USB 2.0, Ethernet (LAN), and GPIB connections are standard.
– Rear-panel sensor and 0 dBm Power Ref connectors, replacing the front-panel connectors, are an option (option 003) that makes it easy to incorporate the P-Series meters into a rack for automated testing.
– Trig In accepts a TTL signal for initiating measurements.
– Trig Out outputs a TTL signal for synchronizing with external equipment.
– DC Recorder output, 0 to 1 volt. The N1912A has two recorder outputs as shown.
– Ground connector is available for those applications that require a hard-wired connection between the power meter’s ground and common ground.
– Line power is provided by a universal input voltage range.