The Agilent/Keysight 11608A is a transistor fixture for S-parameter characterization of stripline transistors and stripline components. Operating in a 50-ohm stripline environment, it delivers precision measurements across DC to 12.4 GHz with return loss performance exceeding 26 dB below 4 GHz. The fixture integrates a throughline microstrip and bolt-in grounding structure machinable for specialized packages, enabling direct integration into test benches and specialized measurement setups.
Technical Specifications
• Frequency Range: DC to 12.4 GHz
• Impedance: 50 ohms nominal
• Return Loss: >26 dB to 4 GHz; >23 dB from 4 to 8 GHz; >19 dB from 8 to 12.4 GHz
• Connectors: 7-mm precision
– Key Features
• Throughline microstrip architecture for minimal insertion loss and phase distortion
• Bolt-in grounding structure with machining capability for custom device packages
• Precision 7-mm connectors ensure repeatability across multiple test cycles
• Designed for 50-ohm stripline environments to maintain system impedance matching
– Typical Applications
• S-parameter measurement and device characterization
• Stripline transistor evaluation
• Broadband component testing from DC through microwave frequencies
• Custom package integration requiring modified grounding structures
– Compatibility & Integration
The 11608A pairs with HP 8753E, HP 85046A, and HP 85047A S-parameter test sets. Optimal performance is achieved when integrated with the HP 8746B S-Parameter Test Set. This product is discontinued but remains fully supported by Keysight, with repair, calibration, and per-incident service options available.
