Focus Microwaves - RF Test Fixtures DC-26 GHz
Focus Microwaves provides modular microstrip, high-power, and ultra-low-loss coaxial fixtures designed for load pull testing of packaged transistors. Equipped with TRL calibration standards, these fixtures support transistor packages from under 0.1” to 1” wide. Special features include decade-wide Klopfenstein transformers (Fmax:Fmin ~10:1), water- and air-cooling options, and on-substrate bias networks. Microstrip fixtures (PTJ-x*) offer 50Ω lines, λ/4 or taper transformers, harmonic traps, and DC bias networks, while Minimum Loss coaxial Test Fixtures (MLTF-x*) feature low insertion loss (< 0.03 dB at 2 GHz) with connectors including 7mm, N, and 7/16, spanning up to 18 GHz. Both types support water cooling for RF power up to several hundred Watts.
Model |
Frequency |
Connector |
---|---|---|
MLTF-C |
Up to 6 GHz |
N type, APC-7 |
MLTF-Ku |
Up to 18 GHz |
N type, APC-7 |
MLTF-X |
Up to 12 GHz |
N type, APC-7 |
PTJ-C |
DC - 6 GHz |
SMA, N type, 3.5 mm, APC-7 |
PTJ-Ka |
Up to 26 GHz |
3.5 mm |
PTJ-KLOP |
Up to 8 GHz |
N type |
PTJ-Klopf-404 |
Up to 4 GHz |
APC-7 |
PTJ-Ku |
Up to 18 GHz |
3.5 mm, APC-7 |
PTJ-S |
DC - 4 GHz |
SMA, N type, 3.5 mm, APC-7 |
PTJ-X |
Up to 12 GHz |
N type, 3.5 mm, APC-7 |
More Product Information

In Nordic mythology, Loki is the god of mischief. In the world of Ethernet testing, Z100 Loki is an important part of the Xena product line, which is Xena’s Ethernet Traffic Generation & Analysis (TGA) solution.
Z100 Loki supports testing of NRZ-based Ethernet at data rates of 10G / 25G / 40G / 50G / 100G.
In the Xena line we also have Z10 Odin (NRZ testing 10Mbps to 10G), Z400 Thor (NRZ testing 10 to 100G and PAM4 testing 50G to 400G), Z800 Freya (10G NRZ to 800G PAM4) and the Z1608 Edun (112G & 224G SerDes) which can generate up to 1.6Tbps.

- Up to 12 contacts; any contact can be DC, Power, Logic to 500 MHz,or RF to 20 GHz
- Online design configuration tool helps you to specify your probe in minutes
- All designs are fully quadrant compatible
- Full solution includes probes, calibration substrates, stations, accessories and software
- Scalable architecture for future needs

-
A wide frequency range eliminating the need for antenna changes
-
30W maximum power input allows high filed strengths
-
High efficiency due to a low VSWR and high gain
-
Suitable for broadband digital modulation thanks to a good VSWR flatness
-
Small, light-weight and flat antenna easy to use in narrow spaces
-
Easy handling with a flexible arm
-
A wide radiation pattern makes directivity of the fields no longer an issue

Three phase electric power/energy calibrator for calibration and testing of power meters and power transducers.
- 0.01° phase shift accuracy
- 15 - 1000 Hz output
- Built-in multimeter for transducer calibration
- Floating current outputs for 3-wire power meters
- Voltage from Current function

- Available in single and dual pack versions
- Sensor simulation available to provide thermistor, strain gauges, heater loads, and cell bypass/short.
- Battery behavior easily modified via spreadsheet download to simulate any battery topology including Nickel Metal Hydride, Lithium Ion, and Nickel Cadmium
- Flexible Database Operation
- Fully Programmable
- Completely Configurable
- Attention To Spacecraft Safety
- Eliminates the need for test flight batteries and their associated issues

Three Probe Technologies
- Infinity Probe: best for Al (Si)
- ACP Probe: best for AU (III-Vs)
- |Z| Probe: robust solution (long lifetime)
- Precision contact on a wide variety of materials from 26 GHz to 67 GHz
- Accurate results with excellent crosstalk
- Matching cables and substrates included
Precise Contact Solution
- RF chuck ±3 μm surface planarity
- Unique 500 μm platen contact/ separation stroke with ≤± 1 μm accuracy for repeatable contact
- Precision probe alignment
- Consistent contact force and overtravel
- Stable contact performance
WinCal Calibration Software
- Exclusive 1-, 2-, 3-, and 4-port on-wafer calibration algorithms
- Automated calibration monitoring
- Unique measurement & analysis methods
- Accurate S-parameter measurements
- Automatic calibration setup for higher efficiency
- Fast and easy data interpretation and reporting

The PHD1200 and PHD2000, with advanced pulser-circuit technology, offer unmatched speed, accuracy, and resolution for precise dynamic on-resistance measurement of transistors. Paired with the AU-5 Pulsed IV/RF System, this compact solution delivers exceptional performance.

High resistance decade with built-in test signal meter for calibration of high resistance meters up to 6 kV. Based on M6xx Real-Resistance decade series with short function for short current testing.
- 10 kΩ - 100.0 GΩ, short function
- Hot-switching up to 6 kVdc limit
- Test voltage and current indication

Focus Microwaves offers a range of high-performance pulsed modulators, including 1-channel and 2-channels models, designed for precise signal modulation. These modulators are ideal for RF and microwave applications requiring accurate and reliable pulsed signal generation.

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
Test & Measurement
