Orthomode Transducers: Part 6 – Testing Back-to-Back OMTs David W. Porterfield, PhD Founder, Micro Harmonics This is the sixth blog in a series on orthomode transducers. So far, we have introduced orthomode transducers (OMTs) and their applications [1], explored several common OMT architectures [2], outlined the key performance parameters used to evaluate them [3], explained [...]
For decades the terahertz (THz) region of the electromagnetic spectrum (roughly 300GHz-3THz) has intrigued researchers with its potential to enable faster wireless communications, ultrahigh-resolution spectroscopy and more precise sensing. Yet, despite a solid understanding of the underlying physics, real-world THz systems have remained elusive. A major challenge has been the lack of THz sources capable of [...]
Orthomode Transducers: Part 5 – RF Testing with a Matched Load David W. Porterfield, PhD Founder, Micro Harmonics This is the fifth blog in a series on orthomode transducers [1–4]. In earlier posts, we introduced orthomode transducers (OMTs) and their applications [1], explored several common OMT architectures [2], and outlined the key performance parameters used [...]
Highlights from our November 2025 Newsletter include: Expansion of Orthomode Transducer range between 50-330GHz, Full band Voltage Variable Attenuators employing Faraday rotation, and full band patented Hybrid Circulators. Read more here! Newsletter November 2025
Highlights from our May 2025 Newsletter include: Orthomode Transducers in the WR3.4 Band, Voltage Variable Attenuators in the WR8 band, and full production on Orthomode Transducers in the WR8 and WR5.1 bands respectively. Read more here! Newsletter May 2025
Highlights from our November 2024 Newsletter include: Cryogenic Hybrid Circulators, Voltage Variable Attenuators in the WR8 band, and Patent updates for wide and full band Hybrid Circulators. Read more here! Newsletter November 2024
Highlights from our May 2024 Newsletter include: Full Band Hybrid Circulators, Orthomode Transducers in the WR6.5 Band, and Voltage Variable Attenuator repeatability optimization. Read more here! Newsletter May 2024
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 [...]
Orthomode Transducers: Part 4 – RF Testing with a Short Circuit Termination David W. Porterfield, PhD Founder, Micro Harmonics In previous blogs, we gave a brief introduction to orthomode transducers (OMTs) and their applications [1], showed some of the common OMT architectures [2], and described the important parameters of OMTs, including insertion loss, port reflections, [...]
