Polarization control of parabolic antennas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 16, 2004
Grant Date -
Aug 22, 2002
app pub date -
Dec 21, 2001
filing date -
Dec 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Systems and devices for mechanically rotating the polarisation of a signal emanating from or being received by an antenna system. The rotation of the polarisation is achieved by mechanically rotating the feed using a non-metallic drive cord or belt connected to a motor which is displaced outside or behind the radiating aperture. For a linear array of multiple antenna elements, each feed for each antenna element is rotated simultaneously and by an equal amount through the use of a drive system common to all the feeds. The drive system is coupled to each feed and to a drive motor. When the motor is activated, the drive system simultaneously rotates each feed by a given amount. By rotating the feed, the polarisation of the signal is correspondingly rotated and compensation for polarisation loss is provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully