US 7,126,532 B2 · Apparatus for tracing an optimal direction to receive satellite signal in active phase array antenna system

Abstract

The present invention relates to a signal combining apparatus of the active phase array antenna. The signal combining apparatus includes a plurality of signal distributors for receiving a signal from an antenna array element located at boundary between sub antenna arrays and distributing the signal to the sub antenna arrays, which include the antenna array element; and a plurality of signal combiners for combining the signal from a plurality of antenna elements and the signal distributors in corresponding sub antenna array. The present invention can prevent degrade a performance caused by sudden phase difference and can effectively receive tracing signal by passing a signal of antenna element located at boundary between sub arrays antenna to both signal combiners corresponding to both of sub antenna arrays.

Claims2

Dependent claims

A signal combining apparatus of an active array antenna, comprising:

a plurality of antenna elements arranged to form at least two sub antenna arrays, wherein each of the sub antenna arrays has an associated boundary antenna element located at a boundary between two neighboring sub antenna arrays;
distribution means for receiving a signal from the boundary antenna element and distributing the signal;
combine means for combining the distributed signal with signals of the antenna elements in the corresponding sub antenna array to produce combined signals;
and
circuitry to compare phases of each of the sub antenna arrays based on the combined signals to locate an optimal direction of a satellite signal.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/456,844Filed 6 Jun 2003

Priority

KR 10-2002-005221631 Aug 2002

Published

US 2005/0017917 A127 Jan 2005

Granted

24 Oct 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01Q 21/061
Arrays of individually energised antenna units similarly polarised and spaced apart: two dimensional planar arrays
G01S 3/42
Using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition…
G01S 3/46
Systems for determining direction or deviation from predetermined direction: using antennas spaced apart and measuring phase or time difference…
H01Q 3/2605
Varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of…

Apparatus for tracing an optimal direction to receive satellite signal in active phase array antenna system

Life of this patent

Apparatus for tracing an optimal direction to receive satellite signal in active phase array antenna system

Life of this patent

Abstract

Claims2