Focus Microwaves - Noise Modules

Noise measurements allow the determination of the four Noise Parameters of a device (transistor). Focus’ Noise Modules integrate well with various third party noise receivers.
Noise Parameters: These are four numbers that fully describe the noise behaviour of an active or passive device (twoport) at a given frequency. For practical reasons we use the following quantities as Noise Parameters:
Focus’ noise parameter extraction routines leverage the PNA-X’s unique implementation
of the cold-source noise figure measurement technique. This specific technique requires a noise source to determine the kBG (gain-bandwidth constant) of the system and a passive mechanical tuner is used to characterize the noise receiver across both the impedance and frequency space. This step is imperative to obtain fully vector-source-corrected measurements.

A RF down conversion stage might be required if the frequency of noise measured exceeds the receiver’s bandwidth. Focus offers noise modules which support down conversion for optimal speed and performance.

Hardware

Noise Measurement System

Model Frequency Insertion Loss VSWR Min. Gain Max. VSWR Connector
NMS-2600 up to 26.5 GHz 0.80 dB 1.61 29 for 0.8-26.5GHz 1.8:1 3.5mm
NMS-4000 up to 40 GHz 0.91 dB 1.81 30 for ≤26.5GHz, 29 for 26-40GHz 2.1:1 2.9mm
NMS-5000 up to 50 GHz 0.99 dB 1.8:1 27 for ≤26.5GHz, 27 for 26-40GHz,

28 for 40-50GHz
2:1 2.4mm
NMS-6700 up to 67 GHz 1.12 dB 1.91 29 for ≤26.5GHz, 28.5 for 26-40GHz,

28 for 40-50GHz, 21 for 50-65GHz
3:1 1.85mm
NMS-6700-DC* up to 67 GHz 1.12 dB 1.9:1 29 for ≤26.5GHz, 28.5 for 26-40GHz,

28 for 40-50GHz, 37 for 50-65GHz
3:1 1.85 mm
NMS-75500-DC* 50 to 75 GHz 0.4dB 1.2:1** 40 for 50-75GHz 1.6:1** WR-15
NMS-90600-DC* 60 to 90 GHz 0.9dB 1.3:1** 35 for 60-90GHz 1.8:1** WR-12
NMS-110750-DC* 75 to 110 GHz 1.1dB 1.3:1** 36 for 75-110GHz 1.9:1** WR-10
NMS-1701100-DC* 110 to 170 GHz 1.3dB 1.4:1** 36 for 110-170GHz 2:1** WR-6.5

* with Downconverter

** +/-10%


Graphs

Noise Parameters

Noise Circles & Stability Regions



Noise Parameters: Minimum Noise Figure / Rn / Gamma Opt / Phase of Gamma Opt


Setup

More Product Information

Focus Microwaves

Focus Microwaves is a pioneering engineering company, built around the innovations of its founder Dr. Christos Tsironis who developed his first manual tuner in 1973 and is the inventor of most existing electro-mechanical tuner families. The success of Focus is based on the engineering and manufacturing skills of its highly motivated and experienced team of engineers and technicians, who have been trained and encouraged to develop new technologies. In addition, listening to our customers needs and insights helps us discover and develop new and measurement methods on an ongoing basis, relentlessly pushing the limits of what is possible. 

From humble beginnings in 1988, Focus has become the main supplier of advanced Load Pull and Noise Tuner Systems. Our mission is to provide effective, reliable and innovative solutions for non-50 Ohm testing (Noise and Load Pull) of RF microwave transistors, thus enabling our customers to compete in the marketplace with better designs and to advance the understanding and knowledge of the field.


Contact Details 

Focus Microwaves Inc. Main Head Office 

4555 Chem. du Bois-Franc, Saint-Laurent, QC H4S 1A8, Canada 

Phone: +1-514-684-4554 

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Test & Measurement

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Focus Microwaves - Noise Modules