Structure and electronic circuit

Patent metadata

Field	Value
Publication number	US-10128552-B2
Application number	US-201614995436-A
Country	US
Kind code	B2
Filing date	Jan 14, 2016
Priority date	Jan 20, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A structure which cuts off propagation of an electromagnetic wave at one or more frequencies is provided. The structure comprises linear third conductors arranged on a plurality of different layers different from a first layer of a substrate including the first layer where a first conductor is formed and a second layer where a second conductor is formed, and at least one fourth conductor configured to connect one end of one conductor out of the third conductors to one end of another conductor out of the third conductors. At least one of the third conductors has a curved shape.

First claim

What is claimed is:

1. A structure which cuts off propagation of an electromagnetic wave at one or more frequency bands, the structure comprising:
a substrate including a first layer, a second layer, a third layer, and a fourth layer, wherein the third layer and the fourth layer are disposed between the first layer and the second layer;
a first conductor formed on the first layer;
a second conductor formed on the second layer;
a plurality of third conductors formed on the third layer; and
a plurality of fourth conductors formed on the fourth layer,
wherein one end of a first one of the plurality of third conductors is connected to one end of a first one of the plurality of fourth conductors by a first via,
wherein another end of the first one of the plurality of third conductors is connected to one end of a second one of the plurality of fourth conductors by a second via,
wherein another end of the second one of the plurality of fourth conductors is connected to one end of a second one of the plurality of third conductors by a third via,
wherein another end of the second one of the plurality of third conductors is an open end, and
wherein a helical shape with an axis substantially-parallel to the first layer and the second layer is formed by the plurality of third conductors, the plurality of fourth conductors, and a plurality of vias that include the first via, the second via, and the third via.

2. The structure according to claim 1 , wherein one of the ends of each of two of the plurality of third conductors is connected to the second conductor.

3. The structure according to claim 1 , wherein the open end is arranged between the first conductor and the second conductor.

4. The structure according to claim 1 , wherein none of the plurality of third conductors are connected to the second conductor.

5. The structure according to claim 1 , wherein the one end of the first one or the second one of the plurality of third conductors is connected to the second conductor.

6. An electronic circuit comprising:
a first conductor configured to form a signal line;
a second conductor configured to form ground;
a substrate including a first layer, a second layer, a third layer, and a fourth layer, wherein the third layer and the fourth layer are disposed between the first layer and the second layer, the first conductor is formed on the first layer and the second conductor is formed on the second layer; and
a structure configured to cut off propagation of an electromagnetic wave at one or more frequency bands,
wherein the structure includes:
a plurality of third conductors formed on the third layer, and
a plurality of fourth conductors formed on the fourth layer,

wherein one end of a first one of the plurality of third conductors is connected to one end of a first one of the plurality of fourth conductors by a first via,
wherein another end of the first one of the plurality of third conductors is connected to one end of a second one of the plurality of fourth conductors by a second via,
wherein another end of the second one of the plurality of fourth conductors is connected to one end of a second one of the plurality of third conductors by a third via,
wherein another end of the second one of the plurality of third conductors is an open end, and
wherein a helical shape with an axis substantially-parallel to the first layer and the second layer is formed by the plurality of third conductors, the plurality of fourth conductors, and a plurality of vias that include the first via, the second via, and the third via.

Assignees

• Canon Kk

Inventors

• Morita Jun
• Shimura Hajime

Classifications

• H01P1/20345

  Multilayer filters · CPC title

• H03H2001/0085

  Multilayer, e.g. LTCC, HTCC, green sheets · CPC title

• H01P1/2005 Primary

  Electromagnetic photonic bandgaps [EPB], or photonic bandgaps [PBG] · CPC title

• H01P1/203

  Strip line filters · CPC title