PE9801 WR-90 waveguide to coax adapter is also known as a WR-90 waveguide transition. This waveguide to coax adapter / transition is constructed as a WR 90 to type N connector and has a female gender. Our WR90 to N type female waveguide adapter transition has a right angle design and has a square cover flange. Pasternack right angle WR-90 to type N waveguide to coaxial cable transition / adapter has a minimum frequency of 8.2 GHz and a maximum frequency of 12.4 GHz.