×

Electrical cable assembly for a signal measuring instrument and method

  • US 5,119,020 A
  • Filed: 11/06/1989
  • Issued: 06/02/1992
  • Est. Priority Date: 11/06/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A cable assembly for transmitting high frequency signals to electrical measuring instruments having a plurality of wire probe leads with probe tips connectable to a test circuit, a flat electrical cable having electrical characteristics matched with prescribed electrical input characteristics of said measuring instrument for accurately transmitting multiple signals from a test circuit over a wide frequency band to said measuring instrument, said electrical cable being terminated at a first end to a first connector connectable to an input of said measuring instrument having said prescribed electrical input characteristics and terminated at a second end to a second connector having pin sockets connectable to said probe leads, and an interface shroud carried by said second connector connecting said probe leads to said pin sockets of said second connector, said cable assembly comprising:

  • a first printed circuit board carried by said first connector;

    a second printed circuit board carried by said second connector connected to said pin sockets;

    a first resistor-capacitor network carried on said first printed circuit board and electrically connected between said electrical cable and said measuring instrument;

    a second resistor-capacitor network carried on said second printed circuit board and electrically connected between said probe leads and said electrical cable;

    said first and second resistor-capacitor networks having a prescribed ratio of capacitance values providing an increased effective bandwidth over which said cable assembly transmits said signals; and

    said first and second networks on said printed circuit boards having desired values and ratios so that the electrical characteristics of said cable assembly correspond to said input characteristics of said measuring instrument for accurately transmitting multiple signals from a test circuit over a wide frequency band to said measuring instrument.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×