Focus Microwaves - RF Test Fixtures

Focus’ modular microstrip, high power and ultra low loss coaxial  RF Test Fixtures are designed mainly for load pull testing of packaged transistors. All Focus test fixtures come with TRL calibration standards and support most transistor packages sized from less than 0.1″ and up to 1″.

Special designs include:

  • Decade wide (Fmax:Fmin ~10:1) Klopfenstein transformers,
  • Water and Air cooling and
  • On substrate bias networks.
  • Microstrip fixtures (PTJ-x*; Packaged Test Jig) are available with 50Ω lines or built-in λ/4 or taper (Klopfenstein) transformers, harmonic traps and DC bias networks
  • Minimum Loss coaxial Test Fixtures (MLTF-x*) (insertion loss < 0.03 dB at 2 GHz) are available with 7mm, N and 7/16 connectors in frequency ranges up to 18 GHz. (US patent 6,464,513)

Both RF Test Fixture types can be fitted with water cooling for RF power up to several hundred Watts.

(*) ‘-x’ indicates the frequency range: DC-4GHz, -6GHz, -12GHz and -18GHz.


Modular RF Power Transistor Test Fixtures

Model

Frequency

Connector

PTJ-S DC - 4 GHz, TRL Calibration standards N, 7mm, SMA, 2.9mm, 3.5mm
PTJ-C DC - 6 GHz, TRL Calibration standards N, 7mm, SMA, 2.9mm, 3.5mm
PTJ-X DC - 12 GHz, TRL Calibration standards N, 7mm, SMA, 2.9mm, 3.5mm
PTJ-Ku DC - 18 GHz, TRL Calibration standards N, 7mm, SMA, 2.9mm, 3.5mm
PTJ-Ka DC - 26 GHz, TRL Calibration standards 2.9mm, 3.5mm
PTJ-Klop Klopfenstein, custom design N, 7mm, SMA, 2.9mm, 3.5mm

Add-On Options

Model

Description

TRINW Transistor Insert with water cooling option
WCP Water cooling pump for water cooling option
XDEL Extra delay line, standard
XTRIN Extra Transistor Insert, Standard
XTRFS Extra Transistor Substrate, Custom
TRFS-CUS Extra Transformer Substrate, Custom
XTRCLP Extra Transistor Clamp, flush mount

Minimum Loss Test Fixture (MLTF) Coaxial

Model

Frequency

Connector

MLTF-C DC - 4 GHz 7mm, N, 7/16
MLTF-X DC - 12 GHz 7mm, N
MLTF-Ku DC - 18 GHz 7mm, 3.5mm
MLTF-Ka DC - 26.5 GHz 3.5mm

Minimum Loss Test Fixture (MLTF) Coaxial

Model

Frequency

Connector

MLTF-C DC - 4 GHz 7mm, N, 7/16
MLTF-X DC - 12 GHz 7mm, N
MLTF-Ku DC - 18 GHz 7mm, 3.5mm
MLTF-Ka DC - 26.5 GHz 3.5mm

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 - RF Test Fixtures