Phase shifter using dielectric and electronic device including the same
A phase shifter module is provided. The phase shifter module includes a dielectric, a plate, and a PCB including a metal pattern. The metal pattern includes a power divider having first and second transmission branches. The first transmission branch includes a first structure formed between a branch point of the power divider and an output terminal of the first transmission branch. The second transmission branch includes a second structure formed between the branch point of the power divider and the output terminal of the first transmission branch. The dielectric is disposed to overlap at least one of at least a portion of the first structure or at least a portion of the second structure. The dielectric is flexibly disposed so that a first region where the dielectric overlaps the first structure and a second region where the dielectric overlaps the second structure vary, according to movement of the plate.
1 . A module including at least one phase shifter, the module comprising:
a plate;
a dielectric coupled to the plate; and
a printed circuit board (PCB) comprising a metal pattern,
wherein the metal pattern comprises a power divider having a first transmission branch extending from a branch point of the power divider and a second transmission branch extending from the branch point of the power divider,
wherein the first transmission branch comprises a first structure formed between the branch point of the power divider and an output terminal of the first transmission branch,
wherein the second transmission branch comprises a second structure formed between the branch point of the power divider and an output terminal of the second transmission branch,
wherein the output terminal of the first transmission branch is electrically connected to first antenna elements of a sub-array,
wherein the output terminal of the second transmission branch is electrically connected to second antenna elements of the sub-array, different from the first antenna elements of the sub-array,
wherein the dielectric is disposed to overlap at least one of at least a portion of the first structure or at least a portion of the second structure,
wherein, in case that a first region where the dielectric overlaps the first structure expands according to movement of the plate, a second region where the dielectric overlaps the second structure shrinks, and
wherein, in case that the first region shrinks according to the movement of the plate, the second region expands.
2 . The module of claim 1 , wherein the dielectric is configured to rotate from a first position, in which the dielectric overlaps only the first structure of the first transmission branch, to a second position in which the dielectric overlaps only the second structure of the second transmission branch or rotate from the second position to the first position.
3 . The module of claim 1 ,
wherein the first structure comprises a first connection portion for connecting the branch point of the power divider and the output terminal of the first transmission branch, and a first protrusion portion coupled to the first connection portion, and
wherein the second structure comprises a second connection portion for connecting the branch point of the power divider and the output terminal of the second transmission branch, and a second protrusion portion coupled to the second connection portion.
4 . The module of claim 1 ,
wherein the first structure comprises one or more first stubs for slow-wave, and
wherein the second structure comprises one or more second stubs for slow-wave.
5 . The module of claim 4 ,
wherein the one or more first stubs are periodically disposed along a main feeder line of the first transmission branch, and
wherein the one or more second stubs are periodically disposed along a main feeder line of the second transmission branch.
6 . The module of claim 1 , wherein a rotation axis is located in between the first structure and the second structure.
7 . The module of claim 1 , wherein the metal pattern is plated on one surface of the PCB.
8 . The module of claim 1 , further comprising:
a rack coupled to the plate; and
a gear for rotating the dielectric based on a linear movement of the plate,
wherein the gear is coupled to the rack and the dielectric.
9 . The module of claim 1 , wherein a phase difference between a first output of the first transmission branch and a second output of the second transmission branch in a state in which the plate is disposed in a first position is different from a phase difference between the first output of the first transmission branch and the second output of the second transmission branch in a state in which the plate is disposed in a second position.
10 . An electronic device, comprising:
a power source;
at least one processor;
at least one filter;
an antenna printed circuit board (PCB); and
an array antenna comprising a plurality of sub-arrays,
wherein, for each sub-array, the antenna PCB comprises:
a plate,
a dielectric coupled to the plate, and
a PCB comprising a metal pattern,
wherein the metal pattern comprises a power divider having a first transmission branch extending from a branch point of the power divider and a second transmission branch extending from the branch point of the power divider,
wherein the first transmission branch comprises a first structure formed between the branch point of the power divider and an output terminal of the first transmission branch,
wherein the second transmission branch comprises a second structure formed between the branch point of the power divider and an output terminal of the second transmission branch,
wherein the output terminal of the first transmission branch is electrically connected to first antenna elements of a sub-array of the array antenna,
wherein the output terminal of the second transmission branch is electrically connected to second antenna elements of the sub-array, different from the first antenna elements of the sub-array,
wherein the dielectric is disposed to overlap at least one of at least a portion of the first structure or at least a portion of the second structure,
wherein, in case that a first region where the dielectric overlaps the first structure expands according to movement of the plate, a second region where the dielectric overlaps the second structure shrinks, and
wherein, in case that the first region shrinks according to the movement of the plate, the second region expands.
11 . The electronic device of claim 10 , wherein the dielectric is configured to rotate from a first position, in which the dielectric overlaps only the first structure of the first transmission branch, to a second position in which the dielectric overlaps only the second structure of the second transmission branch or rotate from the second position to the first position.
12 . The electronic device of claim 10 ,
wherein the first structure comprises a first connection portion for connecting the branch point of the power divider and the output terminal of the first transmission branch, and a first protrusion portion coupled to the first connection portion, and
wherein the second structure comprises a second connection portion for connecting the branch point of the power divider and the output terminal of the second transmission branch, and a second protrusion portion coupled to the second connection portion.
13 . The electronic device of claim 10 ,
wherein the first structure comprises one or more first stubs for slow-wave, and
wherein the second structure comprises one or more second stubs for slow-wave.
14 . The electronic device of claim 13 ,
wherein the one or more first stubs are periodically disposed along a main feeder line of the first transmission branch, and
wherein the one or more second stubs are periodically disposed along a main feeder line of the second transmission branch.
15 . The electronic device of claim 10 , wherein a rotation axis is located in between the first structure and the second structure.
16 . The electronic device of claim 10 , wherein the metal pattern is plated on one surface of the PCB.
17 . The electronic device of claim 10 , further comprising:
a rack coupled to the plate; and
a gear for rotating the dielectric based on a linear movement of the plate,
wherein the gear is coupled to the rack and the dielectric.
18 . The electronic device of claim 10 , wherein a phase difference between a first output of the first transmission branch and a second output of the second transmission branch in a state in which the plate is disposed in a first position is different from a phase difference between the first output of the first transmission branch and the second output of the second transmission branch in a state in which the plate is disposed in a second position.