Cavity filter and connecting structure included therein

Patent metadata

Field	Value
Publication number	US-11482803-B2
Application number	US-202017119530-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Jun 12, 2018
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

The present invention relates to a cavity filter including: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein a part of the terminal portion, positioned between the electrode pad and the RF signal connecting portion, is elastically deformed to absorb assembly tolerance existing in a terminal insertion port. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevent disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.

First claim

The invention claimed is:

1. A cavity filter comprising:
an RF signal connector spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connector,
wherein a part of the terminal portion, positioned between the electrode pad and the RF signal connector, is elastically deformable,
wherein the terminal portion comprises:
a first terminal which is in contact with the electrode pad, and elastically deformable by an assembly force provided by an assembler; and
a second terminal connected to the first terminal, fixed so as not to be moved in the terminal insertion port, and having a lower end portion soldered and fixed to the RF signal connector.

2. The cavity filter of claim 1 , wherein the terminal portion comprises a single body in the terminal insertion port.

3. The cavity filter of claim 2 , wherein the first terminal has an upper end portion formed in a question mark shape.

4. The cavity filter of claim 2 , wherein the terminal portion comprising the single body is bent and connected to the RF signal connector provided on one side right under the terminal insertion port.

5. The cavity filter of claim 2 , wherein the terminal portion comprising the single body has an elastic deformation elastically deformable portion which is elastically deformable by the assembly force.

6. The cavity filter of claim 5 , wherein the elastically deformable portion is formed in a partially cut ring shape.

7. The cavity filter of claim 5 , wherein the elastically deformable portion is bent in a zigzag shape.

8. The cavity filter of claim 1 , wherein the first terminal and the second terminal are each made of a conductive material.

9. The cavity filter of claim 1 , further comprising a dielectric body inserted into the terminal insertion port so as to cover a part of the terminal portion.

10. The cavity filter of claim 1 , further comprising a reinforcement plate inserted into the terminal insertion port and configured to fix a part of the terminal portion.

11. The cavity filter of claim 10 , wherein any one of the first terminal and the second terminal has a plurality of tension cut portions elongated in a top-to-bottom direction,
wherein the tension cut portions are provided in the second terminal, and an upper end portion of the second terminal is housed in a lower end portion of the first terminal.

12. A cavity filter comprising:
an RF signal connector spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connector,
wherein a part of the terminal, positioned between the electrode pad and the RF signal connector, is elastically deformable,
wherein the terminal portion comprises:
a first terminal which is in contact with the electrode pad, and moved in the terminal insertion port by an assembly force provided by an assembler; and
a second terminal connected to the first terminal, elastically deformable by the assembly force provided from the first side terminal, and soldered and fixed to the RF signal connector.

13. A connecting structure comprising:
an RF signal connector spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connector,
wherein a part of the terminal portion, positioned between the electrode pad and the RF signal connector, is elastically deformable,
wherein the terminal portion comprises a single body which is bent and connected to the RF signal connector provided on one side right under the terminal insertion port.

Assignees

• Kmw Inc

Inventors

• Park Nam Shin
• Kim Joung Hoe
• Jang Sung Ho

Classifications

• H01P1/04

  Fixed joints · CPC title

• H01R2201/02

  for antennas · CPC title

• H01R13/2478

  spherical · CPC title

• H01P1/207 Primary

  Hollow waveguide filters (H01P1/212, H01P1/213, H01P1/215, H01P1/219 take precedence) · CPC title

• H01R13/2407

  characterized by the resilient means · CPC title