everything RF recently interviewed Diane Kees, the CEO of Micro Harmonics Corporation. Diane is a microwave engineer with deep expertise in ferrite devices for millimeter-wave applications, supported by advanced study in microwave engineering at the University of Virginia and specialized research on Faraday-rotation isolators and waveguide circulators. Since joining Micro Harmonics, she has played a [...]
Researchers at IMRA America have demonstrated a new THz source architecture that overcomes several long-standing limitations. By combining a resonant tunneling diode (RTD), a photomixed dual-wavelength Brillouin laser, and a Micro Harmonics low-loss waveguide circulator, the team achieved more than 40 dB of gain at 260 GHz. Read the full story from everythingRF to learn [...]
Micro Harmonics' OMT proved essential to the success of a recent joint demonstration with VDI and Keysight to successfully transmit two independent wideband signals over a single 142 GHz link using orthogonal polarizations, effectively doubling data capacity. The breakthrough was enabled by Micro Harmonics’ high‑isolation, low‑loss OMT, which allowed 40 GHz of combined bandwidth to pass through [...]
An article published in EE Design It discusses a growing reality in mmWave system design: traditional attenuation approaches stop scaling once you push into the D-band. The story features our new WR-8 voltage-variable attenuator as the solution. That is because we addressed the problem, not with a refinement of conventional techniques, but by switching to [...]
We are excited to announce the release of our newest millimeter-wave voltage-variable attenuator (VVA) that harnesses Faraday rotation technology. The WR-8 VVA is optimized for systems operating in the 90-140 GHz frequency range, delivering full band performance. Read the full release in Microwave Journal:
Keysight Technologies published a white paper on: 6G - A New Approach to Increasing Data Throughput. The company, in collaboration with Virginia Diodes, utilized our Orthomode Transducers (OMTs) in a new approach to combine the vertical and horizontal polarized signals into one dual-polarized signal to double the data throughput relative to a single-polarized transmission. This [...]
An article in Microwave Product Digest discusses one of the central engineering challenges in sub-THz communication is the limited availability of hardware and the underlying components required for it to operate reliably at these frequencies. The story is about a recent effort led by Virginia Diodes, Inc. (VDI) and Keysight Technologies, using the Micro Harmonics [...]
Micro Harmonics Corporation has announced the release of its new mmWave orthomode transducer (OMT), engineered for high frequency applications requiring low loss, excellent polarization purity and wideband operation. The WR-3.4 orthomode transducer is optimized for systems operating in the 220 to 330 GHz frequency range, delivering performance that meets or exceeds stringent requirements for satellite [...]
Doubling data at sub-THz: one link, two polarizations, twice the data. As part of the pursuit of sub-terahertz (THz) systems, engineers from Keysight and VDI used a MMW OMT from Micro Harmonics to successfully transmit two independent, wideband signals, each on an orthogonal polarization, through a single spatial link at 142 GHz. By combining both [...]
A 60-year-old theory is changing the game for millimeter-wave attenuators (MMW). An article published in New Electronics explains how engineers have long relied on PIN diodes and resistive vane attenuators to manage signal strength. Yet, both come with serious tradeoffs at high frequencies. Now, a breakthrough in Faraday rotation is unlocking a third path forward, [...]
