85072A 10-GHz Split Cylinder Resonator

The Keysight 85072A 10-GHz split cylinder resonator measures permittivity and loss tangent of thin film, un-clad substrates and low loss sheet materials according to the IPC TM-650 2.5.5.13 test method. Designed for robustness and ease of use, it features precision cylinders to ensure high Q factor and loss tangent resolution. Compatible with the Keysight 85071E-300 materials measurement software, the 85072A and can be purchased separately or as part of a complete turn-key solution.

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Features

• Measures complex permittivity and loss tangent of thin film, un-clad substrate and low loss sheet materials
• Complies with IPC test method TM-650 2.5.5.13
• Works with Keysight resonant cavity software
• Innovative design is robust and easy to use

Electrical Characteristics

• TE_O11 resonant mode of closed empty cylinders: frequency = 10.03 ± 0.03 GHz
• TE_O11 resonant mode of closed empty cylinders: Q factor = ≥ 20,000 (input coupling at -50dB)

Typical Uncertainty

• TE₀₁₁ mode: real part of permittivity: ±1%
• TE₀₁₁ mode: loss tangent: ±0.0001
• Useable higher order TE_0np modes: real part of permittivity: ±1 – 2%
• Useable higher order TE_0np modes: loss tangent: ±0.0005

Sample Requirements

• Non-magnetic (µr* = 1-j0), homogeneous and non-isotropic, with uniform thickness and flat parallel sides
• Thickness: 0.1mm to 5mm, typically 1mm
• Minimum length or diameter 56 mm, typically >60 mm
• Suggested values for 1mm thick sample are: real part of permittivity <100, loss tangent <0.01