Diversity system

• US 3,144,647 A
• Filed: 12/01/1959
• Issued: 08/11/1964
• Est. Priority Date: 12/01/1959
• Status: Expired due to Term

• Current Assignee: William Sichak
• Original Assignee: William Sichak
• Inventors: WILLIAM SICHAK
• Application Number:
  US03/856,476
• Time in Patent Office: 1,715 Days
• US Class Current: 342/361
• CPC Class Codes: H04B 7/10 Polarisation diversity; Directional diversity

Claims

1. A DIVERSITY COMMUNICATION SYSTEM COMPRISING A TRANSMITTER, AN ANTENNA INCLUDING A PARABOLIC REFLECTOR AND A PLURALITY OF HORNS EVEN IN NUMBER, SAID HORNS BEING DISPOSED IN A SYMMETRICAL RELATION TO THE AXIS OF REVOLUTION OF SAID REFLECTOR AND ADJACENT THE FOCUS THEREOF, MEANS COUPLING THE SIGNAL OF SAID TRANSMITTER TO EACH OF SAID HORNS INCLUDING MEANS TO EXCITE ONE HALF OF SAID HORNS 180 DEGREES OUT OF PHASE WITH RESPECT TO THE OTHER HALF OF SAID HORNS FOR RADIATION OF THE SIGNAL OF SAID TRANSMITTER ACCORDING TO A GIVEN POLARIZATION IN THE FORM OF A PLURALITY OF BEAMS DISPOSED AT AN ANGLE WITH RESPECT TO EACH OTHER AND SAID AXIS OF REVOLUTION, A PLURALITY OF MEANS RESPONSIVE TO SAID PLURALITY OF BEAMS, EACH OF SAID RESPONSIVE MEANS BEING COUPLED TO ONE OF SAID BEAMS TO RECOVER THE SIGNAL CARRIED THEREBY, AND MEANS TO COMBINE THE RESULTANT OUTPUT SIGNAL OF EACH OF SAID PLURALITY OF RESPONSIVE MEANS TO PROVIDE A SINGLE OUTPUT SIGNAL.