Focus Microwaves - Bi-Directional Couplers 5-120 GHz
Focus Microwaves' bi-directional couplers, available in 40, 67, 110 and 120 GHz models, offer high directivity and low insertion loss. These couplers provide precise measurements, making them ideal for advanced RF and microwave testing, ensuring accuracy and efficiency in both R&D and production environments.
Model |
Input/Output Connector |
Coupling Port |
Frequency Range |
Insertion Loss |
Directivity |
Coupling |
Datasheet |
---|---|---|---|---|---|---|---|
BC-40 |
2.9 mm (FM) |
2.9 mm (F) |
5 GHz - 40 GHz |
0,3 dB |
10 / 15 dB |
30 dB |
|
BC-67 |
1.85 mm (FM) |
1.85 mm (F) |
5 GHz - 67 GHz |
0,4 dB |
10 / 15 dB |
30 dB |
|
BC-110 |
1 mm (F) |
1 mm (F) |
5 GHz - 110 GHz |
1,5 dB |
10 / 15 dB |
20 dB |
|
BC-120 |
1 mm (F) |
1 mm (F) |
5 GHz - 120 GHz |
1,5 dB |
10 / 15 dB |
20 dB |
More Product Information

The Focus Compact Model (FCM) utility is a streamlined software package designed to be used with Focus’ AURIGA high-end Pulsed-IV system

Focus Microwaves' Harmonic Tuners are engineered to enable precise control of impedance at the fundamental and harmonic frequencies (typically f₀, 2f₀, and 3f₀), making them essential for nonlinear device characterization and power amplifier design.
These tuners feature multiple cascaded probes within a single tuner body, allowing independent or simultaneous tuning at multiple frequencies. Their robust design ensures high tuning accuracy, minimal insertion loss, and excellent repeatability across a broad frequency range. Harmonic tuners are the ideal solution for advanced Load Pull measurements where harmonic control is critical.

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.

The Low Frequency Tuner (LFT) is a unique product technology using M 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.

Auriga’s Bias Tees balance impressive RF performance with heavy-duty power handling across multiple frequency bands ranging from 0.1 GHz to 67 GHz. They are designed for rigorous usage without sacrificing RF performance.

- 3 Measurement States; Quiescent (OFF-State), Non Quiescent (ON-State), and Pre-State
- The Pre State is a short high voltage state used to activate the traps in the semiconductor.
- Adjustable delay (Δt) between the Pre state and Non Quiescent state down to 0s.
- Independently adjustable timing settings for the Three-state gate pulser and drain pulser
- Easy Integration into existing mainframes

Focus Microwaves’ RAPID DT, built on Keysight’s M5000 PXI modules, delivers fast, broadband load pull and S-parameter testing up to 18 GHz. It supports CW and pulsed signals across wide bandwidths, making it ideal for advanced standards like 4096QAM 802.11be.

- Part of the MicroBrite™ family of high performance, compact machine vision lights.
- Our DF196 Series delivers direct illumination at a low angle to cast shadows used to identify surface defects, embossed text, etc.
- This dark field ring light is more directional and less diffuse than the DF198.
- Available in 4 sizes with an intesity of 72kLux (working distance of 25mm with DF196-100)

Discover the frontier of tuner technology with Focus Microwaves' new waveguide tuners, designed for frequencies exceeding 110GHz. Combining the success of DELTA and omega tuners, these instruments promise to revolutionize Sub-THz bands, offering a high tuning range in a compact footprint. With extreme precision and low-loss RF probes, these tuners ensure optimal accuracy and repeatability, setting a new standard in on-wafer applications.

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
