General Microwave 490R

The General Microwave 490R is a microwave control component engineered for professional RF and microwave systems requiring precise switching or attenuation management. Designed for system integrators and RF engineers, the 490R delivers reliable performance across demanding operational environments where signal integrity and repeatable control are critical.

## Technical Specifications

• **Frequency Range:** Operates across broad microwave frequency bands specified in GHz
• **Control Interface:** Digital control via IEEE-488 (GPIB) programming capability
• **Switching Performance:** Transfer times specified in nanoseconds or microseconds depending on operational mode
• **Power Handling:** Maximum operating levels defined by 1 dB compression threshold; survival power ratings based on semiconductor specifications
• **Connector Type:** SMA RF connectors

## Key Features

• Multi-state switching capability (SPST through SP7T configurations available)
• Reflective and non-reflective design options
• Octave-band, broadband, and ultra-broadband frequency coverage
• Attenuation control with mean attenuation and flatness characterization across operating bands
• Remote programmable operation via standard GPIB interface
• Modular architecture supporting integrated driver integration

## Typical Applications

• Automated RF test and measurement systems
• Microwave signal routing and switching matrices
• Attenuation-based signal conditioning in test setups
• Laboratory and production environments requiring GPIB automation

## Compatibility & Integration

The 490R integrates with IEEE-488 (GPIB) control systems, supporting automated switching sequences and programmable attenuation control. Component design accommodates standard 50 Ω RF systems using SMA connectors, enabling straightforward integration into existing microwave benches and automated test equipment.