Anritsu 37247B Vector Network Analyzer (40 MHz to 20 GHz)

The Anritsu 37247B is a microprocessor-controlled vector network analyzer designed for high-performance S-parameter characterization of passive and active RF devices. Operating from 40 MHz to 20 GHz, this compact bench-top instrument integrates a synthesized signal source, S-parameter test set, and tuned four-channel receiver into a single system. It delivers fast, accurate measurements of RF circuits, amplifiers, antennas, and transmission line properties with 12-term error-corrected sweeps and rapid GPIB data transfer to LCD color display or external VGA monitor.

– Technical Specifications

Frequency Range: 40 MHz to 20 GHz

Measurement Capabilities
• S-parameter measurements (S11, S21, S22, S12) and user-defined combinations of incident and reflected waves (a1, a2, b1, b2)
• LRL/LRM and Adapter Removal calibration methods
• Gain compression measurements vs. input power or frequency
• Power meter assisted flat output power calibration for dBm measurements
• Automatic reference plane compensation for electrical length differences
• Display formats: Log Magnitude, Phase, Log Magnitude and Phase, Smith Chart (impedance & admittance), Log Polar Group Delay, Linear Magnitude, Linear Magnitude and Phase, Real, Imaginary, Real & Imaginary, SWR
• High speed time domain and distance measurement capability (Option 2)

Source Performance
• Port 1 Output Power: 0 dBm (40 MHz to 40 GHz)
• Port 1 Step Attenuator: 1 watt, 70 dB (60 dB above 40 GHz)
• Port 2 Step Attenuator: 40 dB
• ALC Range: 20 dB
• Internal bias tees for DC biasing; external amplifier loop supports up to 1 watt insertion

Receiver Performance
• Four independent measurement channels
• High Level Noise: <0.03 dB and <0.4° peak-to-peak (1 kHz IF bandwidth, ≤20 GHz); <0.08 dB and 20 GHz)
• Noise Floor: -70 dBm @ 40 MHz, -96 dBm @ 20 GHz, maximum -98 dBm @ 2 GHz
• Receiver Dynamic Range: 90 dB @ 40 MHz, 99 dB @ 20 GHz, maximum 101 dB @ 2 GHz
• System Dynamic Range: 70 dB @ 40 MHz, 96 dB @ 20 GHz, maximum 98 dB @ 2 GHz

Data Storage
• Up to 1601 measurement data points per sweep, or 2 to 501 discrete arbitrary points
• Internal hard-disk drive for setup and calibration storage
• 1.44 MB MS-DOS floppy drive; external SCSI-2 hard disk support

– Key Features

• Fast synthesized sweeping source with step attenuators on both ports
• Four-channel receiver for simultaneous multi-parameter acquisition
• Extensive calibration and measurement format library
• On-board storage with external expansion capability

– Typical Applications

Device characterization, filter and amplifier testing, antenna impedance measurement, transmission line analysis, and active device bias circuit verification.

– Compatibility & Integration

GPIB interface for automated test sequences and data acquisition. External monitor support for larger display implementations.