Key Specifications, Waveguide Size: WR-90, Gain Min: 20, Flange Size: Square Cover, Frequency, Min: 8.2 GHz, Frequency, Max: 12.4 GHz, Beam Width V: 16.5, Beam Width H: 16.1. WR-90 Standard Gain Horn Antenna Operating From 8.2 GHz to 12.4 GHz With a Nominal 20 dB Gain With Square Cover Flange. PE9856-20 WR-90 standard gain horn antenna is also known as a waveguide horn. This WR-90 standard gain horn antenna has a 20 dB nominal gain and a square cover flange. Our 20 dB WR-90 horn antenna has a minimum frequency of 8.2 GHz and a maximum frequency of 12.4 GHz. WR-90 standard gain horn waveguide antenna PE9856-20 has a vertical beam width of 16.5 and horizontal of 16.1 degrees at 3 dB. This WR-90 standard gain horn antenna with 20 dB is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-90 waveguide horn antenna can ship worldwide the same day as it is purchased as with our other available RF parts.