Polarization state techniques for wireless communications

Details Polarization state techniques for wireless communications Polarization state techniques for wireless communications

2007-12-18

2007-12-18

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C455S130000

Reexamination Certificate

active

10631430

ABSTRACT:
Communication systems include a transmitter that modulates a radio signal transmitted from two differently polarized antennas during a state time in which a wave state of the radio signal conveys information and is based on one or more polarization states selected from a constellation of polarization states comprising at least three polarization states. The communication system includes a receiver that intercepts the radio signal by two differently polarized antennas during the state time, and demodulates the signal. The polarization states may identify user devices or may quantify a portion of the information intended for a user device.

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patent: 6621463 (2003-09-01), Lam
patent: 2002/0077071 (2002-06-01), Williams et al.
Stutzman, Warren L. “Polarization in Electromagnetic Systems”, 1993 Artech House, Inc. ISBN 0-89006-508-X. pp. 18-43; 53-57; 61; 149-151.
Onggosanusi, etal., “Space-Time Polarization Signalling For Wireless Communications,” Department of Electrical and Computer Engineering, University of Wisconsin-Madison, and National Science Foundation, IEEE 2000, pp. 188-192.

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