Agilent / Keysight 34946A Dual 1×2 SPDT Terminated Microwave Switch Module for 34980A

The Keysight/Agilent 34946A is a dual 1×2 SPDT terminated microwave switch module for the 34980A Multifunction Switch/Measure Unit. It delivers bidirectional RF switching from DC to 26.5 GHz with two independent 1×2 switches, each featuring three 50 Ω SMA-terminated ports. This architecture maintains signal integrity through impedance matching while supporting switching power up to 50 W.

– Technical Specifications

Switch Configuration: Dual 1×2 SPDT (Single Pole Double Throw) with 3-port terminated design per switch.

Frequency Range: DC to 26.5 GHz. Ordering options available at 4 GHz, 20 GHz, or 26.6 GHz.

Impedance: 50 Ω.

Switching Power: Up to 50 W.

Connectors: SMA.

Performance Characteristics: Insertion loss ranges from <0.42 dB @ 4 GHz to 60 dB @ 26.5 GHz. VSWR varies from <1.15 dB @ 4 GHz to <1.60 dB @ 26.5 GHz.

– Key Features

• Two independent switches per module for multi-signal routing
• Low insertion loss across frequency bands minimizes signal attenuation
• High isolation performance preserves test accuracy at lower frequencies
• Terminated switch design eliminates external termination requirements
• 50 W switching capacity handles moderate RF power levels

– Typical Applications

Multi-band receiver and transmitter testing. Multi-source signal switching. General-purpose microwave signal routing requiring DC-to-microwave frequency coverage.

– Compatibility & Integration

Designed exclusively for the 34980A Multifunction Switch/Measure Unit. External mounting options supported. Option 001 includes cable kit for internal or external switch configuration.