×

Remote millimeter-wave antenna fiber optic communication system using dual optical signal with millimeter-wave beat frequency

  • US 5,710,651 A
  • Filed: 12/13/1995
  • Issued: 01/20/1998
  • Est. Priority Date: 12/13/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A transmission system comprising:

  • (A) a transmitter station comprising,(1) a dual optical signal generator producing a first optical signal and a second optical signal respectively, wherein said first optical signal is offset in frequency from said second optical signal by a difference frequency,(2) a coupler for combining said first and second optical signals to produce a combined output signal;

    (3) an external modulator for modulating, in accordance with a baseband signal, said combined output signal;

    (B) an optical fiber having one end coupled to said combined output signal; and

    (c) a remote antenna station comprising,(1) a photodetector coupled to another end of said optical fiber for converting said combined output signal to an electrical signal, and(2) an antenna coupled to said electrical signal.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×