About Us

Since 1987, Sonoma Scientific has designed and manufactured high quality RF/Microwave ferrite isolators and circulators. We are committed to excellence in every aspect of our business, from our engineering capabilities and customer service, to our manufacturing processes and experienced personnel.

There are many challenges in designing RF products and Sonoma has provided solutions where others could not. Whether you are challenged by poor VSWR (Voltage Standing Wave Ratio), or have the need of a unique dB isolation, Sonoma has the answer. As a broadband high-power expert we have designed products from milliwatts to kilowatts. When you are struggling to match 50 Ω (Ohms) let us help. We have worked with many large defense, communication, satellite and medical companies.


Sonoma Scientific...
tailoring solutions for
customer applications

The secret to Sonoma’s success is our ability and flexibility in tailoring solutions for customer applications. Our engineers are directly accessible to every customer from project concept to completion. We use our own proprietary software to optimize designs, which allows us to connect directly to our vendors, empowering them to manufacture parts with swifter delivery and lower cost. Working in tandem with your engineering staff, we can design a ferrite isolator/circulator to meet your specific requirements, producing cutting-edge, high-performance units. All products are 100% electrically tested using Anritsu Vector Network Analyzers (VNA) before they are shipped. Sonoma Scientific, the global leader in RF isolator/circulator technology, is ready to work on your next project.

Unmatched Tech Support

You can always find a Sonoma Scientific Technical Sales Representative around the Globe. We have established a well-trained sales force located throughout the United States, Canada and internationally. Whether you choose to meet with one of our knowledgeable field representatives or call our corporate office in Nevada you will always get the support you need in a timely manner.