Omron has developed an RF MEMS (microelectromechanical systems) relay up to 20 GHz, claimed to be the world's smallest (among relays with contacts) capable of switching RF signals. The 20 GHz MMR (micromachined relay) is an RF relay developed from Omron's proprietary MEMS technology.
While realising miniaturisation 1/100th the size of conventional mechanical relays, the company claims it also achieves unmatched RF performance (insertion loss of 1,3 dB or less, isolation of 20 dB or greater). The MMR, capable of 20 GHz, realises wafer level chip size packaging and requires no plastic, ceramic or other type of external packaging.
Since the MMR uses tiny mechanical contacts, a wide bandwidth (2-20 GHz) and low loss switching is achieved. Furthermore, noise generated whenever an RF semiconductor switch is used is eliminated, so the previously necessary RF filter and other peripheral parts for communications devices are not needed, reducing the number of parts, and achieving smaller, lighter, and cheaper products compliant to 20 GHz.
Specifications: dimensions 1,8 x 1,8 x 1,0 mm; driving voltage 24 V; switching rate 1,0 ms; frequency band 20 GHz; insertion loss 1,3 dB; isolation 20 dB.
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