Multiple horn feed for parabolic reflector with phase and power adjustments

• US 3,234,559 A
• Filed: 04/27/1961
• Issued: 02/08/1966
• Est. Priority Date: 05/07/1960
• Status: Expired due to Term

• Current Assignee: Heinz Brunner, Johann Bartholoma
• Original Assignee: Heinz Brunner, Johann Bartholoma
• Inventors: JOHANN BARTHOLOMA, HEINZ BRUNNER
• Application Number:
  US04/105,985
• Time in Patent Office: 1,748 Days
• US Class Current: 343/779
• CPC Class Codes: H01Q 19/17 the primary radiating source comprising two or more radiating elements H01Q19/15, H01Q25/00 take precedence
• CPC Class Codes: H01Q 3/26 varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture H01Q3/12, H01Q3/22, H01Q3/24 take precedence

Claims

1. A DEVICE FOR PRODUCING A COMPLEX DIRECTIONAL SECONDARY RADIATION PATTERN FROM A REFLECTOR, COMPRISING IN COMBINATION:

A PLURALITY OF SEPARATE EXCITERS ARRANGED IN A LINE AND DISPOSED TO DIRECT THEIR PRIMARY RADIATIONS INTO SAID REFLECTOR;

A FEEDER TRANSMISSION LINE COMPRISING A SUPPLY WAVE GUIDE MEANS FOR COUPLING SAID EXCITERS TO SAID LINE, SAID MEANS INCLUDING ADJUSTABLE POWER DIVIDERS ASSOCIATED WITH RESPECTIVE ONES OF SAID EXCITERS FOR ADJUSTING THE AMOUNT OF POWER SUPPLIED TO THE PARTICULAR EXCITER TO WHICH THE POWER DIVIDER IS CONNECTED, SAID POWER DIVIDERS BEING CONNECTED TO SAID FEEDER TRANSMISSION LINE TO ALLOW THE POWER DISTRIBUTION TO BE VARIED AT ANY TIME, INCLUDING DURING OPERATION OF THE DEVICE, TO PRODUCE THE PARTICULAR RADIATION PATTERN DESIRED, EACH ADJUSTABLE POWER DIVIDER COMPRISING A METAL SHEET PROJECTING INTO THE SUPPLY WAVEGUIDE AT AT LEAST ONE POINT OF CONNECTION OF A CURVED WAVEGUIDE TO THE SUPPLY WAVEGUIDE;

AND PHASE SHIFTERS ASSOCIATED WITH RESPECTIVE ONES OF SAID EXCITERS FOR ADJUSTING THE PHASE OF THE PARTICULAR EXCITER WITH WHICH THE PHASE SHIFTER IS ASSOCIATED, SAID PHASE SHIFTERS BEING VARIABLE INDEPENDENTLY OF EACH OTHER AND OF SAID POWER DIVIDERS FOR ACHIEVING A UNIFORM PHASE FRONT RADIATED BY SAID EXCITERS.