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Millimeter and sub-millimeter wave detection

  • US 7,486,247 B2
  • Filed: 01/12/2007
  • Issued: 02/03/2009
  • Est. Priority Date: 02/13/2006
  • Status: Expired due to Fees
First Claim
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1. An antenna assembly comprising an antenna portion and an electrooptic waveguide portion, wherein:

  • the antenna portion comprises at least one tapered slot antenna;

    an electrooptic waveguide extends along at least a portion of an optical path between an optical input and an optical output of the antenna assembly;

    the electrooptic waveguide comprises a waveguide core extending substantially parallel to a slotline of the tapered slot antenna in an active region of the antenna assembly;

    the electrooptic waveguide at least partially comprises a velocity matching electrooptic polymer in the active region of the antenna assembly;

    a velocity ν

    e of a millimeter or sub-millimeter wave signal traveling along the tapered slot antenna in the active region is at least partially a function of the dielectric constant of the velocity matching electrooptic polymer;

    a velocity ν

    O of an optical signal propagating along the waveguide in the active region is at least partially a function of the index of refraction of the velocity matching electrooptic polymer; and

    the active region and the velocity matching electrooptic polymer are configured such that ν

    e and ν

    O satisfy the following relation;



    v e - v O

    v O


    20



    % .

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