ELSO Technologies Sdn Bhd
8E, First Floor,
Jalan Tun Dr. Awang,
Bukit Jambul,
11900 Bayan Lepas,
Penang, Malaysia.

Mr Loo (General Manager)
+6016-713 5255

Johor Branch
Lake View Apartment,
Jalan Austin Perdana 1,
Taman Austin Perdana,
81100 Johor Bahru,
Johor, Malaysia.

Chong CW (Sales Manager)
(WhatsApp or whatsapp call only) Oversea trip from
2/12 – 11/12/2019


Selangor Branch
Puchong, Selangor.

Glenys Teoh (Sales Manager)

East Malaysia Branch
Lot 35, Lot 5277,
Lorong 9C1, Jalan Kapor,
93150 Kuching,
Sarawak, Malaysia.

Clement Lau (Sales Engineer)

ELSO Technologies Pte Ltd
Singapore Branch

1 Coleman Street
#10-06 The Adelphi
179803 Singapore.

Chew Peng Seng  (Sales Manager)
+65 9663 8176

85072A 10-GHz Split Cylinder Resonator

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85072A 10-GHz Split Cylinder Resonator Spectrum Analyzers (Signal Analyzers)   Keysight Technologies

Key Features & Specifications


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

Electrical Characteristics

  • TEO11 resonant mode of closed empty cylinders: frequency = 10.03 ± 0.03 GHz
  • TEO11 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 TE0np modes: real part of permittivity: ±1 – 2%
  • Useable higher order TE0np 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


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 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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