Micro Harmonics

Micro Harmonics Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Micro Harmonics, Science, Technology & Engineering, 20 S Roanoke Street, Suite 202, Fincastle, VA.

Micro Harmonics is a small business located in Fincastle, Virginia, that produces technology for some of the most innovative and emerging companies in the technology, research, and space sectors.

At sub-terahertz frequencies, reaching the band is only part of the challenge. Engineers also need to control the power ...
08/11/2026

At sub-terahertz frequencies, reaching the band is only part of the challenge. Engineers also need to control the power once they get there.

At the International Microwave Symposium (IMS), Virginia Diodes, Inc. (VDI) demonstrated how that can be done in a high-power vector network analyzer extender setup using a Keysight Technologies PNA, VDI VNAX modules, and a Micro Harmonics Corporation WR-8 voltage-variable attenuator (VVA).

Once measurements move into WR-8 and D-band frequencies, output power does not naturally stay flat across a sweep. That can affect device characterization, amplifier modeling, and confidence in the measurement.

In the demo, our VVA gave the system a controllable element at the high-frequency side of the chain. By adjusting attenuation via software at each frequency point, the system flattened the output power and delivered a more consistent input power level to the device under test.

For engineers developing high-frequency amplifiers, gallium nitride (GaN) devices, radar systems, satellite communications hardware, and next-generation communications links, the demo points to a practical path forward: high-frequency measurements with the accuracy, repeatability, and automation engineers expect at lower microwave frequencies.

Watch a video of the demo here: https://lnkd.in/gq3ehESt

Electronically tunable attenuation at millimeter-wave frequencies has traditionally relied on one of two approaches: PIN...
08/04/2026

Electronically tunable attenuation at millimeter-wave frequencies has traditionally relied on one of two approaches: PIN diodes or rotary vane attenuators.

Now there's another option.

We have developed a new voltage variable attenuator (VA) that uses Faraday rotation to rotate the RF signal polarization into a fixed resistive vane, providing precise, electronically controlled attenuation without moving mechanical parts.

Instead of motors or PIN diodes, attenuation is adjusted by varying the current through a magnetic coil. The resulting magnetic bias field controls the amount of Faraday rotation and, in turn, the attenuation level.

The design offers several key advantages, including:

• No moving parts
• No sensitivity to electrostatic discharge (ESD)
• Smooth, voltage-controlled attenuation

Learn more about our new voltage variable attenuator:
https://lnkd.in/gAFsanY7

🎉 Happy National Intern Day! 🎉 Today, we’re proud to recognize the contributions of our incredible intern, Ishika Vij! S...
07/30/2026

🎉 Happy National Intern Day! 🎉 Today, we’re proud to recognize the contributions of our incredible intern, Ishika Vij! Since joining Micro Harmonics, she has brought a fresh perspective, enthusiasm, and a strong work ethic to our team. Along with her capstone project of international marketing research, Ishika has supported four other side projects that we have implemented, and we’re grateful for the value she has added to our work every day. Thank you, Ishika, for being such an important part of our team this summer. It’s been a pleasure to partner with International Trade in their Virginia Global Business Internship Program, and we can’t wait to see all Ishika will accomplish next!

07/28/2026

Lowering the temperature of a millimeter-wave system is one of the most effective ways to reduce thermal noise.

So why don't all millimeter-wave components perform better at cryogenic temperatures?

The answer is that some components, including conventional Faraday rotation isolators designed for room-temperature operation, can lose performance as they are cooled. Changes in magnetic properties and material behavior at cryogenic temperatures can significantly affect insertion loss, isolation, and overall RF performance.

That's a problem for applications such as radio astronomy, quantum computing, and other cryogenic receiver systems where every fraction of a decibel matters.

To address this challenge, we developed a family of cryogenic isolators specifically engineered for low-temperature operation. Our designs have been tested down to 1 K while maintaining outstanding RF performance.

Cryogenic isolators are currently available in WR-28 through WR-5.1 (26.5 - 220 GHz).

Learn more about the engineering behind our cryogenic isolators:
https://lnkd.in/gpaXcxuH

When performance matters, measured data matters.That's why every Micro Harmonics mmWave component is:- Designed for exce...
07/21/2026

When performance matters, measured data matters.

That's why every Micro Harmonics mmWave component is:
- Designed for exceptionally low insertion loss
- Built to handle high RF power
- Individually characterized across the full waveguide band

Every shipment includes the component's complete vector network analyzer test data, giving you confidence that the device in your system performs exactly as specified.

Learn more about the MHC difference here: https://lnkd.in/g5k_78JY

What will it take to make sub-terahertz communication practical for future 6G networks? A new article from Keysight take...
07/14/2026

What will it take to make sub-terahertz communication practical for future 6G networks? A new article from Keysight takes a closer look at the work of Dr. Guillaume Ducournau and his team at the University of Lille and IEMN, including their research into reconfigurable intelligent surfaces, dual-polarized communication links and the challenges of validating live wireless communication at 285 GHz.

The testbed brought together technology from Keysight, Virginia Diodes and Micro Harmonics.

Our orthomode transducer was used to combine independent horizontally and vertically polarized signals into a single dual-polarized sub-THz beam, helping enable two simultaneous data streams over one link.

The result was a live demonstration showing how a single RIS could split a dual-polarized sub-terahertz signal, directing the vertically and horizontally polarized signals into spatially separated receivers.

It is exciting to see our components playing a role in this kind of advanced 6G research, alongside some of the leading organizations working in high-frequency communications.

Read the full Keysight article here: https://lnkd.in/g_52hqYj

One of the more interesting demonstrations at this year came from IMRA America, Inc., which showcased a source sta...
07/09/2026

One of the more interesting demonstrations at this year came from IMRA America, Inc., which showcased a source stabilization setup using optical frequency locking and OCS spectroscopy.

The system utilized our WR-3.4 full-band hybrid to route and isolate signals within the network while maintaining low loss across the band.

What makes demonstrations like this noteworthy is that they highlight a broader trend occurring across the THz industry.

For years, many advanced THz experiments relied on free-space optical setups that were difficult to scale and sensitive to alignment. Increasingly, researchers are moving toward fully waveguide-based architectures that offer greater stability, repeatability, and practical integration.

This is the same direction highlighted in recent research from IMRA on injection-locked resonant tunneling diode (RTD) sources, where waveguide integration enabled more than 40 dB of gain at 260 GHz while maintaining exceptionally low phase noise.

As THz systems continue to mature, enabling components such as circulators, , and are becoming a critical part of the conversation. Progress is no longer just about sources and detectors. It is increasingly about the complete system architecture that makes those technologies usable.

Great work by the IMRA team pushing the boundaries of practical THz systems.

This Independence Day marks 250 years since the signing of the United States Declaration of Independence.A milestone lik...
07/02/2026

This Independence Day marks 250 years since the signing of the United States Declaration of Independence.

A milestone like that invites reflection. The foundation laid in 1776 continues to shape not just the country, but the industries, technologies, and institutions built on top of it.

At Micro Harmonics, our work in high-frequency systems and advanced communications sits within that broader arc of innovation.

The ability to push boundaries, explore new ideas, and build what comes next traces back to those early principles.

This week is a great time to recognize and remember that history and look ahead to what the next chapter holds.

Happy 4th of July!!!

At millimeter-wave and sub-THz frequencies, no two components behave exactly the same. Small mechanical tolerances, slig...
06/29/2026

At millimeter-wave and sub-THz frequencies, no two components behave exactly the same. Small mechanical tolerances, slight misalignments, and material variations all show up in the frequency response.

At lower frequencies, those differences might be negligible. At MMW, they’re not.

That’s why max, min, and “typical” specs only tell part of the story.

What actually matters is how the specific component you’re putting into your system performs across the full band.

At Micro Harmonics, every component we manufacture is tested on a vector network analyzer across the entire waveguide band.

The full test data is then provided with every single piece of hardware, at no additional cost.

It’s a simple idea: you shouldn’t have to guess how your component will behave once it’s in your system. Don’t settle for anything less.

As systems move higher into the millimeter-wave and sub-THz range, isolation gets harder to achieve without sacrificing ...
06/16/2026

As systems move higher into the millimeter-wave and sub-THz range, isolation gets harder to achieve without sacrificing bandwidth or adding insertion loss. Traditional isolators stop working optimally as you move into higher frequencies.

We helped address that problem with Faraday rotation isolators that extended practical, low-loss isolation higher in frequency, giving engineers a better way to reduce the effects of standing waves, protect sensitive sources, and maintain system performance.

Learn more about our line of mmWave and sub-THz isolators that begin at WR-28 (26.5-40 GHz) and extend all the way up to WR-2.8 (260-400 GHz) here: https://lnkd.in/gPTfPHzN

Address

20 S Roanoke Street, Suite 202
Fincastle, VA
24090

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+18334739983

Website

Alerts

Be the first to know and let us send you an email when Micro Harmonics posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category