3755815

Information

• Patent Grant
• 3755815

• References
• Source

• Patent Number

  3,755,815

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1973
  51 years ago

• CPC

  • H01Q3/34 - by electrical means
  • H01Q3/44 - varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
  • H01Q3/46 - Active lenses or reflecting arrays
  • H01Q25/002 - providing at least two patterns of different beamwidth; Variable beamwidth antennas
  • H04Q3/34 - for the second preselection stage

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 343 - Communications: radio wave antennas