WR3.4 Waveguide Multiplier 220-330 GHz – AT-AM18-220330

New 220–330 GHz X18 Active Frequency Multiplier from AT Microwave
bq-microwave is pleased to introduce the AT-AM18-220330 X18 Active Frequency Multiplier from AT Microwave, a high performance millimeter wave component designed for applications in the 220 GHz to 330 GHz frequency range. This advanced frequency multiplier enables reliable signal generation in the J band and sub-terahertz spectrum, supporting modern research, imaging systems, and high frequency communication technologies.
The AT-AM18-220330 converts a relatively low microwave input signal into a much higher frequency output by multiplying the input frequency by a factor of 18. With a compact waveguide module design and integrated buffer stages, the device provides stable output power while requiring only a modest drive level. This makes it ideal for laboratory setups, measurement systems, and advanced sensing platforms operating in the sub-THz range.
The multiplier accepts an input frequency between 12.22 GHz and 18.33 GHz through an SMA female connector and generates an output signal in the 220 GHz to 330 GHz range via a WR-3.4 waveguide interface with a UG-387/M flange. Typical output power reaches +3 dBm, allowing efficient signal distribution to high frequency test equipment or imaging systems.
The design integrates internal input and output buffers, ensuring consistent output performance while maintaining low input drive requirements. The device operates from a single power supply, which simplifies system integration in both laboratory and industrial environments.
Key Specifications
- Frequency Range (Output) 220 GHz to 330 GHz
- Input Frequency 12.22 GHz to 18.33 GHz
- Multiplier Factor x18
- Typical Output Power +3 dBm (220 GHz to 320 GHz) 0 dBm typical near 330 GHz
- Input Power Range 0 dBm to +8 dBm +3 dBm typical drive level
- Waveguide Output Interface WR-3.4 with UG-387U/M anti cocking flange
- RF Input Connector SMA female
- Supply Voltage +9 V to +10 V
- Current Consumption Approximately 0.5 A
Typical Applications
- Sub-THz and J band imaging systems
- Foreign object debris detection systems
- Millimeter wave and terahertz research
- RF over Fiber systems
- High frequency test and measurement equipment
- Signal generation for laboratory experiments
- Spectroscopy and sensing systems
- Advanced communication technology development
Supporting Next Generation Sub-THz Systems
As interest in sub-terahertz technology, high resolution imaging, and advanced sensing continues to grow, reliable signal sources in the 200 GHz to 330 GHz range are becoming increasingly important. The AT-AM18-220330 multiplier provides a practical and compact solution for generating these high frequencies from standard microwave sources.
With its stable output power, integrated buffering stages, and simple power requirements, this multiplier is well suited for engineers, researchers, and system integrators developing next generation millimeter wave and terahertz systems.
For engineers working in sub-THz test setups, imaging platforms, or RF research laboratories, the AT-AM18-220330 offers an efficient and robust way to extend microwave sources into the J band frequency spectrum.
If you are looking for Waveguide Multipliers, we can offer the from WR22 to WR2.8 to frequency ranges of 400 GHz in fullband versions. Please feel free to contact us through our contact form on our website or use info@bq-microwave.de
Click below to download the latest WR3.4 Waveguide Multiplier sheet.






