Applications for low profile two-way satellite antenna system

• US 20080018545A1
• Filed: 12/29/2006
• Published: 01/24/2008
• Est. Priority Date: 01/07/2004
• Status: Active Grant

• Current Assignee: Gilat Satellite Networks Limited
• Original Assignee: Raysat Antenna Systems, LLC (Gilat Satellite Networks Limited)
• Inventors: Moshe, Bercovich, Spirtus, Danny, Kaplan, Ilan, Gachev, Mario
• Granted Patent: US 7,911,400 B2
• Time in Patent Office: Days
• US Class Current: 343/713
• CPC Class Codes: H01Q 1/125 Means for positioning
• CPC Class Codes: H01Q 1/3275 mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
• CPC Class Codes: H01Q 21/061 Two dimensional planar arrays
• CPC Class Codes: H01Q 3/08 for varying two co-ordinates of the orientation
• 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

Abstract

Antenna and satellite communications assemblies and associated satellite tracking systems that may include a low profile two-way antenna arrangement, tracking systems, and applications thereof. Applications for the system include military, civilian, and domestic emergency response applications. The antenna arrangements may be configured to form a spatial multi-element array able to track a satellite in an elevation plane by electronically dynamically targeting the antenna arrangement and/or mechanically dynamically rotating the antenna arrangements about transverse axes giving rise to generation of respective elevation angles and dynamically changing the respective distances between the axes whilst maintaining a predefined relationship between said distances and the respective elevation angles. The system provides autonomous dynamic tracking of satellite signals and can be used for satellite communications on moving vehicles in a variety of frequency bands for military and civilian applications.

Claims

1. A system for communication comprising:

a. a low profile two-way antenna for satellite communications mounted on a moving vehicle

b. the spacing between the antennas being such that the antennas may operate at low elevation angles.

2. The system according to claim 1 wherein the terminal is stationary

3. The system according to 1 wherein the terminal operates at a designated satellite frequency bands selected from the group consisting of L-band, C-band, X-band, Ku-band, Ka-band, and Q-band.