Terminal portion configured to connect an RF signal connector to an electrode pad of an external device over a predetermined distance

Patent metadata

Field	Value
Publication number	US-11876273-B2
Application number	US-202017118688-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Jun 12, 2018
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

The present disclosure relates to a cavity filter and a connecting structure included therein. The cavity filter includes: 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 the terminal portion includes: first side terminal contacted with the electrode pad; and the second side terminal connected to the RF signal connecting portion. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevents 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 external device having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the external device and the RF signal connector,
wherein the terminal portion comprises:
a first terminal in contact with the electrode pad; and
a second terminal connected to the RF signal connector,
wherein the terminal portion is inserted in a terminal insertion port formed in a filter body having the RF signal connector provided therein,
wherein the cavity filter further comprises a dielectric body inserted in the terminal insertion port so as to cover an outer surface of the terminal portion, and
wherein the first terminal of the terminal portion is disposed in the terminal insertion port and moves with the dielectric body by an assembly force applied by an assembler, and
wherein a part of any one of the first terminal and the second terminal is inserted into the other of the first terminal and the second terminal by a predetermined length.

2. The cavity filter of claim 1 , wherein a contact portion of the first terminal of the terminal portion, which is in contact with the electrode pad, has a rounded upper end formed in a hemispherical shape with a predetermined contact area.

3. The cavity filter of claim 1 , wherein a contact portion of the first terminal of the terminal portion, which is in contact with the electrode pad, has an upper end formed in a round cone shape with a predetermined contact area.

4. The cavity filter of claim 1 , wherein the dielectric body has a terminal through-hole in which any one of the first terminal and the second terminal penetrates, and
the any one of the first terminal and the second terminal, which penetrates the terminal through-hole, has a larger diameter than the terminal through-hole so as to be locked to the dielectric body.

5. The cavity filter of claim 1 , wherein the second terminal of the terminal portion is soldered and fixed to a solder hole formed in a plate extended from the RF signal connector.

6. The cavity filter of claim 1 , further comprising an elastic member positioned on an outer circumferential surface of the dielectric body, and configured to elastically support the dielectric body when the dielectric body moves in the terminal insertion port by the assembly force applied by the assembler.

7. The cavity filter of claim 6 , wherein the elastic member comprises two stacked O-rings.

8. The cavity filter of claim 1 , wherein any one of the first terminal and the second terminal has a plurality of tension cut portions.

9. The cavity filter of claim 8 , wherein the tension cut portions are provided in the first terminal, and an upper end portion of the second terminal is inserted in a lower end portion of the first terminal.

10. The cavity filter of claim 8 , wherein the tension cut portions are provided in the second terminal, and a lower end portion of the first terminal is inserted in an upper end portion of the second terminal.

11. The cavity filter of claim 8 , wherein the dielectric body supports an outer circumferential surface of the any of the first terminal or the second terminal having the plurality of tension cut portions formed therein.

12. A cavity filter comprising:
an RF signal connector spaced apart, by a predetermined distance, from an external device having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the external device and the RF signal connector,
wherein the terminal portion comprises:
a first terminal in contact with the electrode pad; and
a second terminal connected to the RF signal connector,
wherein the terminal portion is inserted in a terminal insertion port formed in a filter body having the RF signal connector provided therein, and
wherein the cavity filter further comprises a reinforcement plate configured to reinforce the RF signal connector provided in the terminal insertion port.

13. The cavity filter of claim 12 , wherein the reinforcement plate is fixed to an insertion slot support portion protruding toward the terminal insertion port, as a part of the filter body.

14. The cavity filter of claim 12 , wherein the reinforcement plate has a terminal through-hole in which any one of the first terminal and the second terminal penetrates, and
the any one of the first terminal and the second terminal, which penetrates the terminal through-hole, has a larger diameter than the terminal through-hole so as to be locked to the reinforcement plate.

15. A connecting structure comprising:
an RF signal connector spaced apart, by a predetermined distance, from an external device having an electrode pad provided on a surface thereof; and
a terminal portion configured to electrically connect the electrode pad of the external device and the RF signal connector,
wherein the terminal portion comprises:
a first terminal in contact with the electrode pad; and
a second terminal connected to the RF signal connector,
wherein the second terminal of the terminal portion is soldered and fixed to a solder hole formed in a plate extended from the RF signal connector.

Assignees

• Kmw Inc

Inventors

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

Classifications

• H01P1/045 Primary

  Coaxial joints · CPC title

• H01P1/207 Primary

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

• H01P1/20309

  with dielectric resonator · CPC title

• H01P5/085

  Coaxial-line/strip-line transitions · CPC title

• H01P5/103

  Hollow-waveguide/coaxial-line transitions · CPC title