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World’s Best RF & Microwave Simulation Models
Measurement Based Models

Characterization Services

Modelithics® Inc. provides a broad array of highest quality, RF/microwave/mm-wave characterization services. Modelithics emphasizes wafer probe measurements of semiconductor wafer and chip, as well as surface mount components assembled on hybrid boards. Other measurement configurations involving microstrip or coplanar test fixtures, and measurements to coaxial or waveguide reference planes are available. Among the many measurement capabilities offered, Modelithics can measure s-parameters up to 110GHz standard and even higher frequencies upon request. We offer noise parameter measurements up to 50GHz, load pull, IV, impedance measurements, and more.

Please see our additional services for Modeling and *X-parameters. for examples of some of the modelithics services, see our literature area

Download and complete the applicable services request form and email to Modelithics Sales






 
 

Multiple vector network analyzer (VNA) test platforms cover the following frequency bands:

GetSparEquipment
Equipment Frequency Range Measurement Type
HP 8753 (multiple) 30 kHz to 6 GHz S-Parameter
HP 8510C (multiple) 0.045 to 50 GHz S-Parameter
Keysight PNA 10 MHz to 67 GHz S-Parameter
Keysight PNA-X 10 MHz to 67 GHz S-Parameter
Keysight PNA/Oleson MM-wave Extension Modules 10 MHz to 110 GHz S-Parameter
OML MM-Wave Extension Modules 65 to 110 GHz S-Parameter
True 4-port S-parameter measurements through 67 GHz are available to support mixed-mode circuit design applications

*X-parameters is a trademark and registered trademark of Keysight Technologies in the US, EU, JP, and elsewhere. The X-parameters format and underlying equations are open and documented. For more information, visit Keysight X-Parameters Information

Noise measurements are performed in a screen room to minimize local electromagnetic interface.
GetSparEquipment
Equipment Frequency Range Measurement Type
Custom Test Setup 10Hz to 100 KHz (extension to 1 MHz) Noise
HP 8970/HP8971 10 MHz to 50 GHz (50-110 GHz*) Noise
Maury ATN NP5 0.3 to 50 GHz (75-110 GHz*) Noise
HP 8510C (multiple) 300 MHz to 26.5GHz Noise
Keysight PNA-X 10MHz to 50GHz Noise

Brochures

  Title Author Date
50GHz High Frequency Noise Parameter Measurements Modelithics, Inc. 7/14/2016
1/f Noise Testing Modelithics, Inc. 1/1/2014
Load- and source-pull measurements can be performed to generate impedance contours for optimizing the tradeoff between various amplifier performance parameters, such as output power and 1 dB compression, power-added-efficiency (PAE), transducer gain, and third-order-intermodulation distortion (IM3 or TOI).

GetSparEquipment
Equipment Frequency Range Measurement Type
Maury ATS Fundamental tuning 0.2 to 50 GHz Load/Source-Pull Non-Linear
Maury ATS Fundamental tuning 75 to 110 GHz Load/Source-Pull Non-Linear
Maury ATS Harmonic tuning 2.45 GHz, 5.25 GHz fundamental Load/Source-Pull Non-Linear

 
 
For transistor and diode characterization modeling, DC and pulsed measurements are made using the following equipment:
GetSparEquipment
Equipment Capabilities Measurement Type
HP4142 DC Parameter Analyzer DC IV characterization DC
Accent DIVA Pulsed IV measurements DC
Keithley 590 C-V Measurements DC
Auriga 4750 DC IV measurements DC

 
 

Many other measurements and software tools are available to help support model development requirements, including:

GetSparEquipment
Equipment Frequency Range Measurement Type
Boonton Resonant Coaxial Line Q-factor measurements of discrete passives Other
Keysight 4219A Impedance Analyzer Impedance measurements 1 Mhz to 1.8 Ghz Other
Keysight 4287A Impedance measurements to 3 GHz Other
  • Other Software
  • CAE and electromagnetic simulation software: Keysight Technologies ADS, Keysight Technologies Genesys, ICCAP, Momentum - NI/AWR Design Environment™ - NIST Multical - Maury Microwave test software – Sonnet® software™ - ANSYS® HFSS™ - CADENCE Spectre RF, PSPICE – and other software tools.
Reproduced with Permission of Keysight Technologies, Inc.