Focus Microwaves - Waveguide Tuners
Focus Microwaves pushes the boundaries of tuner technology once again. While 6G frequencies and applications are still being defined, Focus took the initiative and developed a new family of waveguide tuners designed for frequencies greater than 110GHz. Leveraging the success and technology of the DELTA tuners (industry standard for direct connect on wafer applications) and combined it with the micro-metric accuracy and repeatability of the small footprint omega tuners. These new waveguide tuners will revolutionize the Sub-THz bands.
Starting with models from 26 to 40 GHz and now up to 330 GHz using standard WR-3, WR-5, WR-6, WR-10, WR-12, WR-15, WR-22 and WR-28 waveguide sections. The extreme high horizontal (2.5μm) and vertical (1.5μm) probe movement resolution allows dense impedance coverage up to the highest frequency. Focus’ series of waveguide tuners provide high tuning range in a small footprint, making them ideal for on-wafer applications. Multiple models are available for Ka, V, E, W and D bands.
The extreme low loss RF probes used in the waveguide tuners are also designed for optimal tuning accuracy and repeatability and are free of spurious resonances. All Focus tuners are LAN controlled and include on-board impedance synthesis firmware (iTuner) based on previous calibration.
Waveguide Tuners' List
Model |
Min Frequency |
Max Frequency |
VSWR |
Connector Type |
Type |
Datasheets |
| W1280 | 8.0 GHz | 12.0 GHz | ≥ 20:1 | WR-90 | Waveguide | |
| W18120 | 12.0 GHz | 18.0 GHz | ≥ 20:1 | WR-62 | Waveguide | |
| W26180 | 18.0 GHz | 26.5 GHz | ≥ 20:1 | WR-42 | Waveguide | |
| W40260 | 26.5 GHz | 40.0 GHz | ≥ 20:1 | WR-28 | Waveguide | |
| W50330 | 33.0 Ghz | 50.0 Ghz | ≥ 20:1 | WR-22 | Waveguide | |
| W75500B* | 50.0 GHz | 75.0 GHz | ≥ 20:1 (typ. 35:1) | WR-15 | Waveguide | |
| W90600B* | 60.0 Ghz | 90.0 GHz | ≥ 20:1 (typ. 35:1) | WR-12 | Waveguide | |
| W110750B* | 75.0 Ghz | 110.0 Ghz | ≥ 20:1 (typ. 35:1) | WR-10 | Waveguide | |
| W140900B* | 90.0 Ghz | 140.0 GHz | ≥ 20:1 | WR-8 | Waveguide | |
| W1701100B* | 110.0 GHz | 170.0 GHz | ≥ 15:1 | WR-6 | Waveguide | |
| W2201400B* | 140.0 Ghz | 220.0 GHz | ≥ 10:1 | WR-5 | Waveguide | |
| W3302200B* | 220.0 Ghz | 330.0 GHz | ≥ 6:1 (typ. 10:1) | WR-3 | Waveguide | |
| W75500BV** | 50.0 Ghz | 75.0 Ghz | ≥ 20:1 (typ. 35:1) | WR-15 | Waveguide | |
| W90600BV** | 60.0 Ghz | 90.0 GHz | ≥ 20:1 (typ. 35:1) | WR-12 | Waveguide | |
| W110750BV** | 75.0 Ghz | 110.0 GHz | ≥ 20:1 (typ. 35:1) | WR-10 | Waveguide | |
| W140900BV** | 90.0 Ghz | 140.0 Ghz | ≥ 20:1 | WR-8 | Waveguide | |
| W1701100BV** | 110.0 Ghz | 170.0 GHz | ≥ 15:1 | WR-6 | Waveguide | |
| W2201400BV** | 140.0 Ghz | 220.0 GHz | ≥ 10:1 | WR-5 | Waveguide | |
| W3302200BV** | 220.0 Ghz | 330.0 GHz | ≥ 6:1 (typ. 10:1) | WR-3 | Waveguide |
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More Product Information
Focus provides the deepest portfolio of wideband fundamental and harmonic passive tuners. Passive impedance tuners generate controllable reflection factor (Impedance) across the smith chart over a given frequency range. Focus uses two basic technologies:
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From 100MHz to 120GHz we use the slide screw technique in which a reflective probe is inserted into a low loss slotted transmission line.
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For frequencies from 10MHz to 170MHz we use a lumped element technology, whereby variable capacitors are connected with optimized lengths of coaxial cable. To view our Low Frequency Tuners, Click Here!
Most Focus Passive Tuners use long lasting RF probes which are designed for optimal tuning accuracy and are free of spurious resonances. The combination of multiple probes provide ultra wideband coverage in one single tuner. All Focus Passive Tuners are LAN controlled and include on-board impedance synthesis firmware.
For more information on Passive Tuners, visit our youtube channel!
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Probe loss is 3 dB typical between 140 and 200 GHz, S11/S22 15 dB typical
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Reduced unwanted couplings and transmission modes
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Able to shrink pad geometries to 25 x 35 µm (best case)
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Typical contact resistance < 0.05 Ω on Al, < 0.02 Ω on Au
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WR15, WR12, WR10, WR8, WR6, WR4, WR3, and WR2 bands available.
Focus Microwaves’ DELTA series of electro-mechanical tuners is designed specifically for high frequency on wafer measurements. The tuner’s low profile allows it to be placed within the wafer perimeter and allows for a direct connection between the probe tip and the tuner, eliminating all possible insertion loss between the DUT and the tuner. This revolutionary new tuner design enables the engineer to achieve optimum tuning range, with a tuner whose footprint and weight has been dramatically reduced.
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Versatile temperature range for extreme environments
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IEEE 1588 PTP
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Power over Ethernet
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EF lens control
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Monochrome (GT1930L) and color (GT1930LC) models
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GigE Vision interface with Power over Ethernet
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Screw mount RJ45 Ethernet connector for secure operation in industrial environments
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Supports cable lengths up to 100 meters (CAT-6 recommended)
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The Sony IMX174 Exmor is a high sensitivity CMOS sensor
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Trigger over Ethernet Action Commands allow for a single cable solution to reduce system costs
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Comprehensive I/O functionality for simplified system integration
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Planarity adjustable (PA) EF Lens Mount for electronic control of aperture and autofocus
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Easy camera mounting via standard M3 threads at all sides and 1/4-20 tripod mounting hole
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Easy software integration with Allied Vision's Vimba Suite and compatibility to the most popular third party image-processing libraries.
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.
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.
Focus Microwaves pushes the boundaries of tuner technology once again. While 6G frequencies and applications are still being defined, Focus took the initiative and developed a new family of waveguide tuners designed for frequencies greater than 110GHz. Leveraging the success and technology of the DELTA tuners (industry standard for direct connect on wafer applications) and combined it with the micro-metric accuracy and repeatability of the small footprint omega tuners. These new waveguide tuners will revolutionize the Sub-THz bands.
Noise measurements allow the determination of the four Noise Parameters of a device (transistor). There are four Noise Parameters which fully describe the noise behaviour of an active or passive device at a given frequency.
The low frequency tuners are a unique product technology using MPT algorithms for low frequency wideband tuning. Three or more cascaded tuning sections use series transmission cables and parallel rotary capacitors.
The length of the cables and number of tuning sections are optimized for maximum tuning range over a given bandwidth. HLFT tuners use 6 tuning sections allowing second harmonic frequency tuning.
- The LL167 Series provides a focused line of illumination in a passively cooled design.
- Only available in White (for color illumination in a similar package refer to our LL137 Series).
- Provides a high intensity level of 472kLux (working distance of 75mm).
- Available in pre-engineered sizes from 6” (152mm) to 96” (2438mm) in 6″ increments.
- A 3″ (75mm) length option is also available.
- Available intensity control provides illuminance adjustability for every 6″ increment via a 0 – 10v input
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
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