Agilent/Keysight E1368A

The Agilent/Keysight E1368A is a B-size, single-slot VXI module that provides three channels of SPDT coaxial switching for signal routing in automated test systems. Built around the 8762B microwave switch, this register-based device operates from DC to 18 GHz with 50 Ohm termination and break-before-make switching action. Each SPDT channel features three SMA connectors (NC, NO, and Common) and is controlled via SCPI commands for direct integration into test programs. The module includes a 14-pin DIP socket for connecting two additional external switches, expanding routing capability without occupying additional slots.

– Technical Specifications

• VXI Interface: Register-based, A16, slave only
• Frequency Range: DC to 18 GHz
• Channels: 3 × SPDT coaxial switches, 50 Ohm terminated
• Connectors: SMA (labeled 1/NC, 2/NO, C/Common per switch)
• Insertion Loss: <0.20 dB (DC–2 GHz), <0.25 dB (DC–4 GHz), <0.50 dB (DC–18 GHz)
• SWR: <1.1 (to 2 GHz), <1.2 (to 4 GHz), 90 dB to 18 GHz
• Repeatability: 0.03 dB typical
• Actuation: Latching solenoid with break-before-make switching
• Maximum Ratings: 30 V per switch; 1 A maximum per switch control circuit
• Life: 10⁶ cycles typical

– Key Features

• Broad bandwidth operation from DC through 18 GHz supports multiband RF applications
• High isolation (>90 dB) and low repeatability error (0.03 dB) ensure signal integrity across test sequences
• Latching solenoid design minimizes heat generation by opening coil contacts during switching events
• Break-before-make operation prevents signal glitches and maintains 50 Ohm impedance match
• External switch expansion via 14-pin DIP socket doubles available switching channels without additional module slots

– Typical Applications

• Multiband RF signal routing in ATE environments
• Antenna and filter switching in wireless test systems
• Component characterization and production testing from DC to 18 GHz
• Frequency-selective signal path switching in modular test setups

– Compatibility & Integration

The E1368A operates as an A16 slave device in VXI mainframes. C-size chassis require the E1403C adapter for compatibility. SCPI command control enables direct integration with existing test software and automated measurement platforms.