The HP/Agilent 11612A is a DC bias network that injects bias signals into high-frequency circuits while blocking DC from the RF port, preserving measurement integrity across 45 MHz to 26.5 GHz. It supplies DC bias to the center conductor of a coaxial line for a device under test, making it essential for RF and microwave characterization in laboratory and production environments.
Technical Specifications
• Frequency Range: 45 MHz to 26.5 GHz
• Impedance: 50 ohms
• Operating Temperature: 0 to 55°C
• Insertion Loss (Maximum): 0.8 dB up to 12.4 GHz; 1.3 dB from 12.4 GHz to 26.5 GHz
• Return Loss (Minimum): 20 dB (0.045–8 GHz), 18 dB (8–18 GHz), 14 dB (18–26.5 GHz)
• Maximum SWR: 1.22 up to 8 GHz; 1.29 up to 18 GHz; 1.5 up to 26.5 GHz
• Maximum RF Power: +24 dBm (0.25 Watts)
• Maximum Bias Current (Standard): 500 mA
• Maximum Bias Voltage (Standard): ±40 Vdc
– Key Features
• DC blocking on RF port with bias injection on center conductor
• 3.5mm (female) RF connectors for input and output
• SMB (male) connector for DC bias application
• Included SMB (female) to BNC (male) adapter cable
• Option 001 variant provides high-current bias: 2 amps DC; up to 32 amps in pulsed mode, with ±100 Vdc maximum bias voltage
• Option 001 extends frequency range to 0.4 GHz minimum
– Typical Applications
Transistor testing and characterization, particularly with Option 001 for elevated bias requirements. Suitable for active device measurement where DC and RF signals must be independently controlled.
– Compatibility & Integration
Mates with SMA connectors via 3.5mm RF interfaces. Designed for integration into microwave test benches and automated measurement systems. Serial numbers 2301A and higher supported.
