WAVEGUIDE - NGK SPARK PLUG CO

Title:

WAVEGUIDE

Document Type and Number:

WIPO Patent Application WO/2020/059595

Kind Code:

A1

Abstract:

Provided is a waveguide that has a power supply structure capable of mitigating sudden changes in impedance, and can prevent trouble during manufacturing such as dielectric substrate warping, cracking, and filling defects. This waveguide comprises: a dielectric substrate (10); a first conductor layer (11) and a second conductor layer (12) that are formed on a lower surface and an upper surface thereof; a pair of side wall parts (13) that form side walls of both sides of the waveguide; and a feed part (15) that feeds an input signal to the waveguide. The feed part is structured including a feed terminal (20) that is formed on the lower surface of the dielectric substrate and does not contact the first conductor layer, one or a plurality of first via conductors (30) that are each connected at a lower end thereof to the feed terminal, a first connection pad (21) that is connected to an upper end of each first via conductor, and a plurality of second via conductors (31) that are each connected at a lower end thereof to the first connection pad. The sum of the cross-sectional areas of the plurality of second via conductors is greater than the sum of the cross-sectional area(s) of the one or plurality of first via conductors.

Inventors:

TAKAHASHI HIROYUKI (JP)
HIRANO SATOSHI (JP)
MORI NAOKO (JP)
AOKI IKURO (JP)
ADACHI TAKUYA (JP)

Application Number:

PCT/JP2019/035706

Publication Date:

March 26, 2020

Filing Date:

September 11, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NGK SPARK PLUG CO (JP)

International Classes:

H01P5/103; H01P3/12

Foreign References:

JPH10190320A	1998-07-21
US20050011674A1	2005-01-20
JPS464108B1

Other References: