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The Lightning family of microwave vector network analyzers encompasses a wide range of high performance, component test tools designed to address the growing needs of defense, satellite, radar, broadband communication, and optoelectronic component markets. Specific models and added options offer higher levels of measurement capability, including Time Domain, Gain Compression, Harmonic, IMD, Frequency Translation, Multiport, and E/O and O/E measurements, in addition to fast and accurate S-parameter measurements. Complete measurement solutions to 20, 40, and 65 GHz are available in microwave models 37x47, 37x69, and 37x97, respectively.

Microwave two-port VNAs for passive component test applications:

• 37247E: 40 MHz to 20 GHz
• 37269E: 40 MHz to 40 GHz
• 37297E: 40 MHz to 67 GHz

Microwave two-port VNAs for active and passive component test applications:

• 37347E: 40 MHz to 20 GHz
• 37369E: 40 MHz to 40 GHz
• 37397E: 40 MHz to 67 GHz

The Lightning 37000E family of VNAs offers the best overall value in any VNA. Above all, it is a solid performance VNA without any architectural compromises to reduce system cost. It is a mature platform that offers measurement speed that is more than suitable for the R&D environment. The 200 series 37200E is configured for passive measurements, without step attenuators or bias tees. The 300 series 37300E has the complete configuration for both active and passive components test.

• High Performance at R&D Suitable Speed
• Flexible Test Port Configuration
• Multiple Upgrade Paths
• Application Versatility
• High Stability and Reliability
• Powerful PC Based Software Tools
• World Class Technical Support
• 3 Year Factory Warranty

High performance features:

• Calibration Choices: A full range of calibration choices from SOLT, offset short, and waveguide to the first commercially available Multiple Line calibration kit for metrology-grade LRL/LRM calibrations
• Adapter Removal Calibration: Adapters used during calibration are later “removed” for accurate measurements of non-insertable devices
• Multiple Source Control: Independently control two sources for testing of mixers, multipliers and frequency-translated devices
• Power Meter Correction: Accurately calibrate the power output of the analyzer for flat, leveled power across the entire frequency sweep

Standard features:

• Measurement Parameters: S11, S21, S22, S12. User-defined combinations of a1, a2, b1, and b2
• Domains: Frequency Domain, CW Draw, and optional High Speed Time (Distance) Domain
• Graph Types: Log Magnitude, Phase, Log Magnitude and Phase, Smith Chart (Impedance), Smith Chart (Admittance), Linear Polar, Log Polar, Group Delay, Linear Magnitude, Linear Magnitude and Phase, Real, Imaginary, Real and Imaginary, SWR, and Power Out
• Limits Lines: Either single or segmented limit lines can be displayed. Two limit lines are available for each trace
  • Single Limit Readouts: Interpolation algorithm determines the exact intersection frequencies of test data and limit lines
  • Segmented Limits: A total of 20 segments (10 upper and 10 lower) can be generated per data trace. Complete segmented traces can be offset in both frequency and amplitude
  • Test Limits: Both single and segmented limits can be used for PASS/FAIL testing. The active channel’s PASS or FAIL status is indicated on the display after each sweep. In addition, PASS/FAIL status is output through the rear panel I/O connector as selectable TTL levels (PASS = 0V, FAIL = +5V or PASS = +5V, FAIL = 0V)
• Tune Mode: Tune Mode optimizes sweep speed in tuning applications by updating forward S-parameters more frequently than reverse ones. This mode allows the user to select the ratio of forward sweeps to reverse sweeps after a full 12-term calibration. The ratio of forward sweeps to reverse sweeps can be set anywhere between 1:1 and 10,000:1
• Data Averaging: Point-by-point (default) {up to 4096}, Sweep-by-Sweep
• IF Bandwidth: 10 kHz to 10 Hz
• Reference Plane: Can be entered in time or in distance (when the dielectric constant is entered). Automatic reference plane feature adds the correct electrical length (delay) compensation. The system compensates reference phase delay for dispersive transmission media, such as waveguide and microstrip
• Measurement Frequency Range: Frequency range of the measurement can be narrowed within the calibration range without recalibration. CW mode permits single frequency measurements, also without recalibration
• Group Delay Aperture: Defined as the frequency span over which the phase change is computed at a given frequency point. The aperture can be changed without recalibration. The minimum aperture is the frequency range divided by the number of points in calibration and can be increased to 20% of the frequency range without recalibration
• Measurement Channels: Four independent channels are available to display any S-parameter or user defined parameter, in any format, with up to two traces per channel for a maximum of eight traces simultaneously. A single channel, two channels (1 and 3, or 2 and 4), or all four channels can be displayed simultaneously. Channels 1 and 3, or channels 2 and 4 can be overlaid
• Display: Color LCD, 8.5 inch diagonal
• Display Colors: The color of data traces, memory, text, markers and limit lines are all user definable
• Trace Overlay: Displays two data traces on the graticule of the active channel simultaneously
• Trace Memory: A separate memory for each channel can be used to store measurement data for later display or subtraction, addition, multiplication or division with current measurement data
• Group Delay Range: The maximum delay range is limited to measuring no more than +180° of phase change within the aperture set by the number of frequency points
• Markers: Six independent markers can be used to read out measurement data
  • Delta Marker: One marker can be selected as the reference for the other five
  • Enhanced Markers: Marker search feature can be used for finding a level or bandwidth on the active channel
  • Marker Sweep: Sweeps upward in frequency between any
    two markers. Recalibration is not required during the marker sweep
• Blank Frequency Information: Blanking function removes all references to frequencies on the display. Frequency references can only be restored through a system reset or GPIB command
• Vector Error Correction: There are six built-in methods of calibration
  • Short-Open-Load-Thru (SOLT): This calibration method uses short circuits, open circuits, and terminations (fixed or sliding)
  • Offset-Short (waveguide): This calibration method uses short circuits and terminations
  • LRL/LRM: The Line-Reflect-Line (LRL) or Line-Reflect-Match (LRM) calibration uses transmission lines and a reflective device or termination (LRM)
  • TRM: The Thru-Reflect-Match calibration uses short circuits and fixed termination
  • Three Offset-Short (SSST): This calibration method uses three short circuits with different offset lengths to calculate all the calibration terms
  • Autocal®: This calibration method uses an automatic calibrator module
• Reference Impedance: It is possible to modify the reference impedance of the measurement to other than 50 Ω (but not 0)
• Dispersion Compensation: Selectable as Coaxial (nondispersive), Waveguide, or Microstrip (dispersive)
• NxN Multiple Device Solutions: The NxN application provides an accurate method of measuring frequency translated devices, such as mixers, providing both magnitude and phase information and the unique ability to measure absolute phase (group) delay
• Power Meter Correction: Power meter correction is available at a user-selectable power level, if it is within the power adjustment range of the internal source. This is performed using an external power meter over the Dedicated GPIB port
• Multiple Source Control Capability: Multiple Source Control capability allows a user to independently control the frequencies of two sources and the receiver without the need for an external controller PC. The frequency sweep may be comprised of up to five separate bands, each with independent source and receiver settings
• Set-On Receiver Mode: The 37000E can be configured to measure the relative harmonic level of test devices with Set-On Receiver Mode capability. The unique phase locking scheme allows it to operate as a tuned receiver by locking all of its local oscillators to its internal crystal reference oscillator
• Embedding/De-embedding: All 37000Es are equipped with an Embedding/De-embedding feature. De-embedding is generally used for removal of test fixture contributions and other S2P networks from measurements. The de-embedding can be applied to a calibration and then stored for future measurements. Similarly, the Embedding function can be used to simulate matching circuits for optimizing amplifier designs or simply adding effects of a known structure to a measurement
• Connectivity
  • GPIB: 2 Ports, system GPIB and dedicated GPIB
  • System GPIB (IEEE-488.2): Connects to an external controller for use in remote programming of the network analyzer. Address can be set from the front panel and can range from 1 to 30
  • Dedicated GPIB: Connects to external peripherals for network analyzer controlled operations (for example, GPIB plotters, frequency counters, frequency synthesizers and power meters)
  • GPIB Data Transfer Formats: ASCII, 32-bit floating point, or 64-bit floating point. 32-bit and 64-bit floating point data can be transferred with LSB or MSB first
• Gain Compression Measurements (for 37347E, 37369E, 37397E only)
  • Swept Power Gain Compression: The VNA displays traditional Power out vs Power in or Phase vs Power in, at one of up to 10 selectable CW frequencies. A separate screen will easily show Power out and Power in at 1 dB or selected Gain compression for all entered frequencies
  • Swept Frequency Gain Compression: Once Gain is measured at the starting power, the user increments Power in, observing Normalized Gain vs Frequency. This aids in analyzing the most critical compression frequencies of a broadband amplifier
• Options for the 37000E Series:
  • Option 1A: Rack Mount Kit
  • Option 2A: High Speed Time (Distance) Domain
  • Option 4A: External Hard Disk Compatibility
  • Option 15: Flexible Test Set
  • Option 99: Premium Calibration