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Microwave Techniques

The Global Leader in High-Power Microwave

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Waveguide Auto-Tuners

Microwave Techniques manufactures waveguide auto-tuners with industry-leading technology for high-power microwave and RF applications. These compact devices bring a new level of reliability, efficiency, and intelligence to industrial microwave processing applications with real-time control and data monitoring.

Waveguide Auto Tuners Microwave
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EH Style Waveguide Auto-Tuner, WR975, 915 MHz

The WR975 EH Style Waveguide Auto-Tuner builds on decades of high-power RF design experience to provide a solution capable of continuously tuning out a 10:1 mismatch at any reflection phase, under full 100 kW power conditions. This device, which is superior to any other device in the industry, utilizes standard components and a simple electronic control system, fully integrated into the unit.

There is continuous monitoring of power, frequency, and load impedance. Also, the data logging capability built in provides the operator with a means to characterize applicator RF behavior under varying conditions.

Key Features

Waveguide Auto-Tuners
  • Real-time control and monitoring
  • Local HMI touchscreen and remote discreet or web-based control and monitoring
  • Ability to tune out 10:1 mismatch
  • No auxiliary cooling required
  • Short ROI with immediate efficiency gains
  • Advanced data-logging capabilities
  • Additional remote control add-ons available per request

Electrical Specifications

Frequency915 + 15 MHz
Input Match< 1.05:1
Tuning RangeUp to 10:1
Operation ModesManual, One-Shot, Automatic
Bringing Major Efficiency Gains To Your High-Power Microwave Process

This device, which ensures maximum power is transferred to the applicator and your process, not only results in major energy efficiency gains, potentially >20%, but also provides real time control, and a means of gaining a better understanding of the process. In addition, this device was designed to overcome the many issues and limitations with legacy 3-stub tuners such as complexity, frequent overheating, required water cooling, and limited mismatch correction.


To learn more about waveguide auto-tuners, contact our team of microwave experts today!

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Microwave Techniques, LLC

MT Components
28/29 Sanford Drive
Gorham, ME 04038

MT Systems
104 Perimeter Road
Nashua, NH 03063

MT Hamburg
Bötelkamp 31, D-22529
Hamburg, Germany

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