Key Specifications, Waveguide Size: WR-42, Coax Connector Series: SMA, Coax Connector Gender: Female, Waveguide Adapter Style: Right Angle, Minimum Frequency: 17.6 GHz, Maximum Frequency: 26.7 GHz, Maximum VSWR: 1.25:1. WR-42 UBR220 Flange to SMA Female Waveguide to Coax Adapter Operating from 17.6 GHz to 26.7 GHz in Brass. PEWCA1100 WR-42 waveguide to coax adapter is also known as a WR-42 waveguide transition. This waveguide to coax adapter / transition is constructed as a WR42 to SMA connector and has a female gender. Our WR-42 to SMA female waveguide adapter transition has a right angle design and has a UBR220 flange. Pasternack right angle WR-42 to SMA waveguide to coaxial cable transition / adapter has a minimum frequency of 17.6 GHz and a maximum frequency of 26.7 GHz. WR42 waveguide to SMA transition adapter to coax PEWCA1100 is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-42 waveguide adapter transition with SMA interface can ship worldwide the same day that it is purchased as with our other available RF parts.