Key Specifications, Waveguide Size: WR-42, Gain Min: 15, Flange Size: Square Cover, Frequency, Min: 18 GHz, Frequency, Max: 26.5 GHz, Beam Width V: 31.3, Beam Width H: 31.5. WR-42 Standard Gain Horn Antenna Operating From 18 GHz to 26.5 GHz With a Nominal 15 dB Gain With Square Cover Flange. PE9852-15 WR-42 standard gain horn antenna is also known as a waveguide horn. This WR-42 standard gain horn antenna has a 15 dB nominal gain and a square cover flange. Our 15 dB WR-42 horn antenna has a minimum frequency of 18 GHz and a maximum frequency of 26.5 GHz. WR-42 standard gain horn waveguide antenna PE9852-15 has a vertical beam width of 31.3 and horizontal of 31.5 degrees at 3 dB. This WR-42 standard gain horn antenna with 15 dB is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-42 waveguide horn antenna can ship worldwide the same day as it is purchased as with our other available RF parts.