Keysight (Agilent) W11644A Mechanical Calibration Kit, 75 to 110 GHz

The Keysight W11644A Mechanical Calibration Kit delivers precision calibration for Vector Network Analyzer (VNA) measurements in the 75 to 110 GHz band. This WR-10 waveguide calibration standard set eliminates systematic errors and ensures traceable, repeatable characterization across Keysight network analyzer platforms. The kit implements Thru-Reflect-Line (TRL) calibration methodology, delivering high-accuracy error correction without external power or complex setup.

Technical Specifications

Frequency Range: 75 to 110 GHz Waveguide: WR-10 W-band Calibration Method: Thru-Reflect-Line (TRL) Termination Return Loss: ≥ 36.6 dB Quarter-Wavelength Shim Return Loss: 46 dB Standard Section Return Loss: ≥ 36.6 dB Mechanical Tolerance: Waveguide shorts flat within 0.008 mm

Key Features

• Precision airline standard for direct TRL calibration


• Flush short-circuit standard with guaranteed mechanical flatness


• Quarter-wavelength precision shims for phase reference


• Fixed termination loads with high return loss


• NIST-traceable certification on precision airlines and shorts


• Electrical specifications derived from modeled mechanical measurements


• Temperature stability critical for optimal performance; minimize handling during calibration


• Supplied with user and service documentation including replacement part numbers, maintenance procedures, and firmware .xkt files

Typical Applications

• Waveguide component and device characterization at W-band frequencies


• Systematic error removal in VNA measurements


• Calibration standard replacement and kit refresh


• High-frequency transmission line and filter validation

Compatibility & Integration Supported VNA platforms include Keysight 8510, 872x, and PNA series instruments. Documentation covers both connector types (X, P, K) and alternate waveguide configurations (R, Q, U, V, W), ensuring broad instrument compatibility.