Key Specifications, Waveguide Size: WR-42, Coax Connector Impedance: 50 Ohm, Coax Connector Series: SMA, Coax Connector Gender: Female, Waveguide Adapter Style: Right Angle, Minimum Frequency: 18 GHz, Maximum Frequency: 26.5 GHz. WR-42 UG-597/U Square Cover Flange to SMA Female Waveguide to Coax Adapter Operating from 18 GHz to 26.5 GHz. PEWCA1026 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 WR 42 to SMA connector and has a female gender. Our WR42 to SMA female waveguide adapter transition has a right angle design and has a square cover flange. Pasternack right angle WR-42 to SMA waveguide to coaxial cable transition / adapter has a minimum frequency of 18 GHz and a maximum frequency of 26.5 GHz. WR-42 waveguide to SMA transition adapter to coax PEWCA1026 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.