RFMW announces design and sales support for a series of mmWave, 5G circulators from DiTom Microwave. The D3C2731Q circulator covers Ka-band frequencies from 27 to 31 GHz with 20 dB of isolation. A single-junction design, insertion loss is only 0.6 dB maximum, preserving precious power in the mmWave bands. Average power handing is 5W (30W peak). The D3C2731Q is offered with 2.4 mm female connectors having a maximum VSWR of 1.25:1 and are available with any combination of male or female connectors on the input/output. 2.92 mm (K) connectors are also an option. With operating temperatures from -20 to +65 degrees C, these circulators are suitable for in-box applications or bench-top testing applications. The isolator body measures 0.5 x 0.7” and weighs only 0.9 ounces. RFMW offers a range of DiTom circulators from 26.5 to 43.5 GHz in both narrow and wide-band frequency ranges.