Directional coupler

Directional coupler

  • CN 1,906,800 B
  • Filed: 03/31/2005
  • Issued: 05/14/2014
  • Est. Priority Date: 05/18/2004
  • Status: Active Grant
First Claim
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1. a directional coupler, described directional coupler comprises the first and second dielectric layers and is respectively formed at two line electrodes on described the first and second dielectric layers,When described two line electrodes comprise inner wire electrode and see from top around the outer lines electrode of described inner wire electrode,Wherein the electric current in the described inner wire electrode parallel zone adjacent with described outer lines electrode transmits in the same direction,The one end that is formed on the described inner wire electrode on described the first dielectric layer is connected by the first through hole being formed in described the first dielectric layer with the one end that is formed on the described inner wire electrode on described the second dielectric layer,The one end that is formed on the described outer lines electrode on described the first dielectric layer is connected by the second through hole being formed in described the first dielectric layer with the one end that is formed on the described outer lines electrode on described the second dielectric layer,Also comprise the 4th dielectric layer, be formed on the grounding electrode on described the 4th dielectric layer, wherein, electric capacity is formed between described grounding electrode and described inner wire electrode and each end of described outer lines electrode,Described directional coupler also comprises:

  • The first capacitor electrode electrode substrate, is formed with first electrode for capacitors except extra-regional whole region, edge and ground connection on the main surface that substantially covers this first capacitor electrode electrode substrate;

    The second capacitor electrode electrode substrate, is formed with first and second the banded electrode for capacitors being connected with each end of described outer lines electrode respectively;

    The 3rd capacitor electrode electrode substrate, is formed with second electrode for capacitors except extra-regional whole region, edge and ground connection on the main surface that substantially covers the 3rd capacitor electrode electrode substrate;

    AndThe 4th capacitor electrode electrode substrate, is formed with the 3rd and the four-tape shape electrode for capacitors that are connected with each end of described inner wire electrode respectively.

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