Key Specifications, Waveguide Size: WR-51, Coax Connector Impedance: 50 Ohm, Coax Connector Series: SMA, Coax Connector Gender: Female, Waveguide Adapter Style: Right Angle, Minimum Frequency: 15 GHz, Maximum Frequency: 22 GHz. WR-51 Square Cover Flange to SMA Female Waveguide to Coax Adapter, 15 GHz to 22 GHz, N Band, Aluminum, Paint. PEWCA1027 WR-51 waveguide to coax adapter is also known as a WR-51 waveguide transition. This waveguide to coax adapter / transition is constructed as a WR-51 to SMA connector and has a female gender. Our WR-51 to SMA female waveguide adapter transition has a right angle design and has a square cover flange. Pasternack right angle WR-51 to SMA waveguide to coaxial cable transition / adapter has a minimum frequency of 15 GHz and a maximum frequency of 22 GHz. WR-51 waveguide to SMA transition adapter to coax PEWCA1027 is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-51 waveguide adapter transition with SMA interface can ship worldwide the same day that it is purchased as with our other available RF parts.