×

Impedance matching circuit capable of broadband operation

  • US 9,130,534 B2
  • Filed: 02/16/2011
  • Issued: 09/08/2015
  • Est. Priority Date: 02/23/2010
  • Status: Active Grant
First Claim
Patent Images

1. An impedance matching circuit, comprising:

  • a signal port;

    a load port for coupling to at least one antenna;

    a signal path coupled between the signal port and the load port;

    an intermediate node arranged in the signal path;

    a first variable-capacitance capacitive element coupled between the signal port and the intermediate node;

    a second variable-capacitance capacitive element coupled between the intermediate node and the load port;

    a first inductive element coupled between the intermediate node and a ground node;

    a second inductive element coupled between the load port and the ground node; and

    a third inductive element coupled between the signal port and the load port in a parallel path parallel to the signal path.

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