Tracking feed for multi-band operation

• US 7,646,263 B1
• Filed: 05/24/2004
• Issued: 01/12/2010
• Est. Priority Date: 05/30/2002
• Status: Expired due to Fees

• Current Assignee: North South Holdings Incorporated (Spherix Incorporated)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Zarro, Michael, Ergene, Ahmet D.
• Primary Examiner(s): Pascal; Robert J.
• Assistant Examiner(s): Glenn; Kimberly E
• Application Number:
  US10/851,066
• Publication Number:
  US 20100019981A1
• Time in Patent Office: 2,059 Days
• Field of Search: 333/21.A, 333/125, 333/126, 333/129, 333/132, 333/135, 333/137
• US Class Current: 333/137
• CPC Class Codes: H01Q 13/0208 Corrugated horns waveguide mouth antenna with corrugated flange H01Q13/065; manufacturing details H01Q13/0283
• CPC Class Codes: H01Q 13/025 Multimode horn antennas; Horns using higher mode of propagation H01Q13/0241 takes precedence; multiple beam H01Q25/04
• CPC Class Codes: H01Q 25/02 providing sum and difference patterns H01Q25/04 takes precedence

Abstract

An antenna feed system having a single corrugated horn wave guide ports in one of the corrugations, a combiner network which receives signals at approximately 20 GHz from the four wave guide ports and provides sum and difference signals, and a transducer which provides transmit signals at approximately 30 GHz and approximately 44 GHz to a rear end of the single horn.

Claims

1. A method for conducting signals, comprising the steps of:

(a) simultaneously providing two transmit signals to a single orthomode transducer at the same frequency but different polarizations;

(b) simultaneously transmitting the two transmit signals from the transducer to a single horn; and

(c) simultaneously transmitting the two transmit signals from the single horn using the TM01 mode

providing a third transmit signal to the transducer simultaneously with the two previously mentioned transmit signals at a different frequency from the frequency of the two transmit signals;

transmitting three transmit signals from the single orthomode transducer to the horn; and

transmitting three transmit signals simultaneously from the single horn using the TM01 mode.

2. The method of claim 1, further comprising:

providing a fourth transmit signal to the single orthomode transducer simultaneously with the three transmit signals, the fourth transmit signal having the same frequency but a different polarization from the third transmit signal;

transmitting four transmit signals from the single orthomode transducer to the single horn simultaneously; and

transmitting four transmit signals simultaneously from the single horn using the TM01 mode.