Phase shifter including a fixed board unit and at least one moving board unit, where a guide bracket guides the at least one moving board unit relative to the fixed board unit

Patent metadata

Field	Value
Publication number	US-11652263-B2
Application number	US-202117145382-A
Country	US
Kind code	B2
Filing date	Jan 10, 2021
Priority date	Jul 11, 2018
Publication date	May 16, 2023
Grant date	May 16, 2023

Abstract

Disclosed is a phase shifter. According to an embodiment of the present invention, provided is a phase shifter comprising: an elongated fixed board unit including one or more fixed circuit boards each having a circuit pattern formed on one surface thereof, a guiding bracket surrounding the fixed board unit and fixed to the fixed board unit, and one or more moving board units disposed between the guiding bracket and at least one surface of the fixed board unit, guided by the guiding bracket, and including one or more moving circuit boards having conductive strips formed thereon that are coupled to the circuit patterns on the fixed circuit boards.

First claim

What is claimed is:

1. A phase shifter, comprising:
an elongated fixed board unit including at least one fixed circuit board having a circuit pattern formed on one surface of the fixed board unit;
a guiding bracket surrounding the fixed board unit and fixed to the fixed board unit; and
at least one moving board unit disposed between the guiding bracket and the one surface of the fixed board unit, wherein the at least one moving board unit is guided by the guiding bracket, wherein the at least one moving board unit includes at least one moving circuit board having conductive strips formed thereon, and wherein the conductive strips are coupled to the circuit pattern formed on the one surface of the fixed board unit,
wherein the guiding bracket comprises a first segment disposed on the one surface of the fixed board unit and a second segment disposed on another surface of the fixed board unit and detachably engageable with the first segment.

2. A communication device comprising the phase shifter according to claim 1 .

3. The phase shifter of claim 1 , wherein the at least one moving board unit comprises a moving housing comprising a guiding rib on one surface of the at least one moving board unit, the guiding rib extending along a longitudinal direction of the at least one moving board unit and guided by the guiding bracket, on the one surface of the at least one moving board unit.

4. The phase shifter of claim 3 , wherein the guiding bracket comprises a plurality of rollers in contact with the at least one moving board unit.

5. The phase shifter of claim 4 , wherein the guiding rib is located between the plurality of rollers and is guided by the plurality of rollers.

6. The phase shifter of claim 1 , wherein the first segment comprises a first coupling part formed at one end of the first segment and a second coupling part formed at another end of the first segment, the second segment comprises a third coupling part formed at one end of the second segment and a fourth coupling part formed at another end of the second segment, and the first coupling part and the second coupling part are detachably engageable with the third coupling part and the fourth coupling part, respectively.

7. The phase shifter of claim 1 , wherein the fixed board unit comprises side grooves formed at edges thereof, and
the guiding bracket is configured to engaged with the side grooves so as to restrict movement of the guiding bracket in a longitudinal direction of the fixed board unit.

8. The phase shifter of claim 1 , wherein the fixed board unit further comprises a base board, and the at least one fixed circuit board is disposed on both surfaces of the base board, and
one of the at least one moving board unit is disposed in a space between the one surface of the fixed board unit and the first segment and another of the at least one moving board unit is disposed in a space between the another surface of the fixed board unit and the second segment.

9. The phase shifter of claim 8 , wherein the base board is made from a material having a dielectric constant of 2.0 or more.

10. A phase shifter, comprising:
an elongated fixed board unit including at least one fixed circuit board having a circuit pattern formed on one surface of the fixed board unit;
a guiding bracket surrounding the fixed board unit and fixed to the fixed board unit, and
at least one moving board unit disposed between the guiding bracket and the one surface of the fixed board unit, wherein the at least one moving board unit is guided by the guiding bracket, wherein the at least one moving board unit includes at least one moving circuit board having conductive strips formed thereon, and wherein the conductive strips are coupled to the circuit pattern formed on the one surface of the fixed board unit,
wherein a protruding pin is formed on an inner surface of the at least one moving board unit, and the protruding pin is inserted into a coupling hole formed in the at least one moving circuit board to fix the at least one moving board unit.

11. A phase shifter, comprising:
an elongated fixed board unit including at least one fixed circuit board having a circuit pattern formed on one surface of the fixed board unit;
a guiding bracket surrounding the fixed board unit and fixed to the fixed board unit, and
at least one moving board unit disposed between the guiding bracket and the one surface of the fixed board unit, wherein the at least one moving board unit is guided by the guiding bracket, wherein the at least one moving board unit includes at least one moving circuit board having conductive strips formed thereon, and wherein the conductive strips are coupled to the circuit pattern formed on the one surface of the fixed board unit,
wherein a leaf spring is disposed between an inner surface of the at least one moving board unit and the at least one moving circuit board.

Assignees

• Kmw Inc

Inventors

• Kang Seong-Man
• Han Yong Hee
• So Sung-Hwan
• Park Dae-Myung
• Roh Hae Ri
• Jo Gyo Jin
• Seo Chang Won

Classifications

• H01P1/184 Primary

  Strip line phase-shifters (H01P1/181, H01P1/185, H01P1/19 take precedence) · CPC title

• H01Q3/32

  by mechanical means · CPC title

• H01Q3/36 Primary

  with variable phase-shifters · CPC title

• H01Q1/246

  specially adapted for base stations · CPC title