Shortened horn antenna with multiple phased feed

• US 3,146,453 A
• Filed: 08/24/1959
• Issued: 08/25/1964
• Est. Priority Date: 08/24/1959
• Status: Expired due to Term

• Current Assignee: Boynton G. Hagaman
• Original Assignee: Boynton G. Hagaman
• Inventors: Hagaman, Boynton G.
• Application Number:
  US03/835,730
• Time in Patent Office: 1,828 Days
• US Class Current: 343/778
• CPC Class Codes: H01Q 13/02 Waveguide horns

Claims

1. AN ELECTROMAGNETIC WAVE ANTENNA COMPRISING A FLARED HORN HAVING A SHORT LENGTH AND AN APERTURE LYING IN A GIVEN PLANE, A RECTANGULAR WAVE GUIDE CONNECTED TO THE SMALL END OF SAID HORN, SAID WAVE GUIDE HAVING A PLURALITY OF LONGITUDINALLY EXTENDING METALLIC WALLS DIVIDING THE WAVE GUIDE INTO INNER AND OUTER SECTIONS, WHEREBY THE INNER WAVE GUIDE SECTION ILLUMINATES PREDOMINANTLY THE MIDDLE PORTION OF THE HORN APERTURE AND OUTER SECTIONS OF THE WAVE GUIDE ILLUMINATE PREDOMINANTLY THE END PORTIONS OF THE HORN APERTURE, A SOURCE OF RADIO WAVES, MEANS FOR SUPPLYING THE RADIO WAVES FROM SAID SOURCE TO SAID WAVE GUIDE, AND MEANS FOR COMPENSATING FOR THE RELATIVE PHASE DIFFERENCES BETWEEN WAVES ARRIVING AT THE APERTURE OF SAID HORN, SAID COMPENSATING MEANS COMPRISING MEANS FOR DELAYING THE WAVES SUPPLIED FROM SAID SOURCE TO THE INNER WAVE GUIDE SECTION RELATIVE TO THE WAVES SUPPLIED TO SAID OUTER WAVE GUIDE SECTIONS.