RE-CONFIGURATION METHOD AND COMMUNICATION SYSTEM ON ORBIT OF REFLECTOR FORMED BY DEFOCUS OF FEEDER/REFLECTOR AND GIMBAL OPERATION OF REFLECTOR

Title:

RE-CONFIGURATION METHOD AND COMMUNICATION SYSTEM ON ORBIT OF REFLECTOR FORMED BY DEFOCUS OF FEEDER/REFLECTOR AND GIMBAL OPERATION OF REFLECTOR

Document Type and Number:

Japanese Patent JPH10247812

Kind Code:

A

Abstract:

To provide a method and a system for revising a radiation pattern of a satellite by defocusing an antenna assembly.

This communication system for a satellite circulating around the earth is made up of a sliding mechanism 24, a reflector antenna 16 for sending a radiation pattern of electromagnetic energy, a sub-reflector 20 that emits the radiation pattern of the electromagnetic energy to the reflector antenna, and a feeder 18 consisting of a feed element 22, the reflector antenna 16 sends the electromagnetic energy received from the feeders 22, 20 to the earth by means of a radiation pattern, at least one of the reflector antenna 16 and the feeder 18 is slidably mounted to the sliding mechanism 24, and the distance between them is changed for changing the radiation pattern with defocusing between reflector antenna 16 and the feeder 18.

Inventors:

RAMANUJAM PARTHASARATHY
FERMELIA LOUIS R
DIXON CYNTHIA A
ESTEVEZ MIGUEL A

Application Number:

JP32478997A

Publication Date:

September 14, 1998

Filing Date:

November 26, 1997

Export Citation:

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Assignee:

HUGHES AIRCRAFT CO

International Classes:

H01Q19/18; H01Q1/18; H01Q1/28; H01Q3/16; H01Q3/18; H01Q3/20; H01Q15/14; (IPC1-7): H01Q3/16; H01Q1/28; H01Q19/18

Attorney, Agent or Firm:

Takehiko Suzue (4 outside)

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