Key Specifications, Waveguide Size: WR-51, Gain Min: 15, Flange Size: Square Cover, Frequency, Min: 15 GHz, Frequency, Max: 22 GHz, Beam Width V: 31.8, Beam Width H: 32. WR-51 Standard Gain Horn Antenna Operating From 15 GHz to 22 GHz With a Nominal 15 dB Gain With Square Cover Flange. PE9853-15 WR-51 standard gain horn antenna is also known as a waveguide horn. This WR-51 standard gain horn antenna has a 15 dB nominal gain and a square cover flange. Our 15 dB WR-51 horn antenna has a minimum frequency of 15 GHz and a maximum frequency of 22 GHz. WR-51 standard gain horn waveguide antenna PE9853-15 has a vertical beam width of 31.8 and horizontal of 32 degrees at 3 dB. This WR-51 standard gain horn antenna with 15 dB is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-51 waveguide horn antenna can ship worldwide the same day as it is purchased as with our other available RF parts.