Agilent/Keysight 11612B

The Keysight 11612B is a precision bias network that supplies DC bias to RF and microwave components while blocking DC from the RF port. Operating across 45 MHz to 50 GHz, it maintains 50-ohm impedance throughout its broadband design. The device handles up to 500 mA DC current and 40 V DC bias voltage, with maximum RF power handling of +24 dBm (0.25 W).

– Technical Specifications

• Frequency Range: 45 MHz to 50 GHz
• Impedance: 50 ohms
• DC Bias Current: 500 mA maximum
• DC Bias Voltage: 40 V maximum
• Maximum RF Power: +24 dBm (0.25 W)
• Operating Temperature: 0° to 55° C

– Key Features

Insertion loss scales predictably across the frequency band: 0.8 dB below 10 GHz, 1.5 dB below 30 GHz, 2.5 dB below 45 GHz, and 3.2 dB at 50 GHz. Return loss performance (SWR) exceeds 20 dB below 10 GHz, 15 dB below 20 GHz, 12 dB below 30 GHz, and 10 dB to 50 GHz. RF connectors are 2.4 mm (female) on input and output. DC bias input uses an SMB (male) connector. An SMB (female) to BNC (male) cable is included.

– Typical Applications

The 11612B integrates into network analyzer and spectrum analyzer test setups where active device biasing is required within RF signal paths. It decouples DC supply networks from measurement ports, preventing bias voltage interference with sensitive instrumentation.

– Compatibility & Integration

The unit connects directly to test equipment accepting 2.4 mm RF connectors and external DC bias sources via SMB. Operating manuals are available for serial numbers with last five digits 02234 and higher, as well as documentation for the predecessor 11612A model.