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Integrated multilayered microwave circuit

  • US 5,400,039 A
  • Filed: 12/17/1992
  • Issued: 03/21/1995
  • Est. Priority Date: 12/27/1991
  • Status: Expired due to Term
First Claim
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1. An integrated multi-layered microwave circuit for use in a radio communication terminal for a mobile station of a mobile radio communication system, comprising:

  • antenna circuit formed by a micro strip line of conductive material;

    communication circuit for controlling a radio wave which can be received and transmitted by and from said antenna circuit;

    at least two dielectric layers laminated between said antenna circuit and said communication circuit;

    at least one conductive layer disposed between said dielectric layers;

    further comprising a feeding portion disposed between said antenna circuit and said communication circuit, signals being transmitted between said antenna circuit and said communication circuit; and

    wherein said communication circuit includes a circuit pattern constituted by conductive material, a receiving portion for demodulating a received radio wave and converting it into information data, a transmitting portion for modulating the information data into a radio wave to be transmitted, a shared portion connected to said feeding portion for separating the received radio wave from the radio wave to be transmitted, an oscillating portion for supplying an oscillation signal to said receiving portion and said transmitting portion, and an interface portion for exchanging the information data obtained by said receiving portion and the information data to be transmitted from said transmitting portion with an external circuit.

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