MULTI-POLARIZATION ANTENNA FEEDS FOR MIMO APPLICATIONS

• US 20080129634A1
• Filed: 03/14/2007
• Published: 06/05/2008
• Est. Priority Date: 11/30/2006
• Status: Abandoned Application

• Current Assignee: Robert J. Pera, Thomas Birnbaum
• Original Assignee: Robert J. Pera, Thomas Birnbaum
• Inventors: Pera, Robert J., Birnbaum, Thomas
• Application Number:
  US11/685,998
• Publication Number:
  US 20080129634A1
• Time in Patent Office: Days
• US Class Current: 343/853
• CPC Class Codes: H01Q 21/065 Patch antenna array
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H01Q 9/0435 using two feed points
• CPC Class Codes: H04B 7/10 Polarisation diversity; Directional diversity

Abstract

Methods and systems for exploiting orthogonal antenna polarizations which restore MIMO capability to an otherwise single path link are disclosed. Disclosed multi-polarization antennae and antennae arrays create two orthogonally polarized independent channels of communication which are transmitted and received by similar multi-polarization antennae, taking advantage of the fact that orthogonally polarized electromagnetic waves travel independently and can be used as independent communication channels. Transmitters; and receivers comprising such multi-polarization antennae behave as if two independent communication channels are available in the same line-of-sight link, allowing a doubling of the bandwidth and providing a way to exploit MIMO in outdoor and other line-of-sight communication links.

Claims