Richardson Electronics, Ltd. Continues Expansion of RF/Microwave with Quantum Microwave Richardson Electronics, Ltd. Continues Expansion of RF/Microwave with Quantum Microwave LAFOX, Ill., Jan. 28, 2021 — Richardson Electronics, Ltd. (NASDAQ: RELL) announced today a new distribution agreement with Quantum Microwave, a US-based manufacturer of microwave and millimeter-wave solutions. This is a global agreement, excluding Japan, China, and Taiwan. With a specialty in mmWave and microwave products, Quantum Microwave offers a variety of waveguide components and adapters that reach up to 325 GHz as well as connectorized amplifiers, antennas, and mixers. Quantum Microwave also has a range of cryogenic microwave components that support the newly emerging quantum computing market, which work at temperatures as low as 10 mK.