BRANCHED WAVEGUIDE LINE, AND MULTI-LAYER WIRING AND ANTENNA SUBSTRATES HAVING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a miniature waveguide line which has not nearly any electromagnetic-wave leakage and has a small quantity of loss, and multi-layer wiring and antenna substrates having the waveguide line.;SOLUTION: The branched waveguide line branches from a first dielectric waveguide line 1 to an upper second dielectric waveguide line 2 and to a lower third waveguide line 3. A second lower main conductor layer 22 and a third upper main conductor layer 31 comprise one conductor layer. The conductor layer is disposed on the lower-side of a first upper main conductor layer 11 and on the upside of a first lower main conductor layer 12. The end surface of the first dielectric waveguide line 1 is opposed to the end surface of the second dielectric waveguide line 2 and to the end surface of the third dielectric waveguide line 3 which are disposed up and down in an overlapping manner. The structure branched upward and downward from the first dielectric waveguide line 1 to the second and third dielectric waveguide lines 2, 3 is constituted.;COPYRIGHT: (C)2009,JPO&INPIT