Antenna module including insulator, and base station including same antenna module
The present invention relates to: a communication technique for converging an IoT technology with a 5G communication system for supporting a higher data transfer rate beyond the 4G system; and a system therefor. The present invention provides an antenna module including at least one antenna array, wherein the antenna array comprises: a first insulator having a shape of a plate and having a conductive pattern formed thereon to allow the flow of an electrical signal; a first radiator disposed such that the lower end surface thereof is spaced a predetermined first length apart from the upper end surface of the first insulator; a second radiator spaced a predetermined second length apart from the first radiator on a horizontal plane on which the first radiator is disposed; at least one feeder unit electrically connected to the conductive pattern to supply an electrical signal to the first radiator and the second radiator; and a second insulator disposed on the upper end surface of the first insulator to fix the at least one feeder unit such that the at least one feeder unit is spaced a predetermined third length apart from the lower end surface of the horizontal plane on which the first radiator and the second radiator are arranged.
1. An antenna module comprising at least one antenna array, the antenna array including:
a first insulator having a plate shape and having a conductive pattern formed to allow an electrical signal to flow;
a first radiator disposed to be spaced apart from an upper surface of the first insulator to a lower surface thereof by a predetermined first distance;
a second radiator disposed to be spaced apart from the first radiator by a predetermined second distance on a horizontal plane where the first radiator is disposed;
at least one feeder electrically connected to the conductive pattern and formed to supply electrical signals to the first and second radiators; and
a second insulator disposed on the upper surface of the first insulator and fixing the at least one feeder to be spaced apart by a predetermined third distance from a lower surface of a horizontal plane where the first and second radiators are disposed.
2. The antenna module of claim 1 , wherein the at least one feeder includes:
a first feeder having one end electrically connected to the conductive pattern, having other end spaced apart from a lower surface of the first radiator by the third distance, and supplying an electrical signal related to horizontal polarization to the first radiator;
a second feeder having one end electrically connected to the conductive pattern, having other end spaced apart from the lower surface of the first radiator by the third distance, and supplying an electrical signal related to vertical polarization to the first radiator;
a third feeder having one end electrically connected to the conductive pattern, having other end spaced apart from a lower surface of the second radiator by the third distance, and supplying an electrical signal related to horizontal polarization to the second radiator; and
a fourth feeder having one end electrically connected to the conductive pattern, having other end spaced apart from the lower surface of the second radiator by the third distance, and supplying an electrical signal related to vertical polarization to the second radiator.
3. The antenna module of claim 2 , wherein each of the first, second, third, and fourth feeders includes:
a first segment forming a right angle with the upper surface of the first insulator and extending toward the first or second radiator, and
a second segment forming a right angle with the first segment and being spaced apart by the third distance from, in parallel with, the lower surface of the horizontal plane where the first and second radiators are disposed.
4. The antenna module of claim 3 , wherein an extension line of the second segment of the first feeder and an extension line of the second segment of the second feeder form a right angle with each other, and an extension line of the second segment of the third feeder and an extension line of the second segment of the further feeder form a right angle with each other.
5. The antenna module of claim 1 , wherein the antenna array further includes a third insulator disposed on the upper surface of the first insulator and fixing the first and second radiators such that lower surfaces of the first and second radiators are spaced apart from the upper surface of the first insulator by the first distance.
6. The antenna module of claim 1 , wherein the antenna array further includes a radome disposed on the upper surface of the first insulator and having a first radiator mounting portion and a second radiator mounting portion such that the first and second radiators are fixed to and spaced apart from the upper surface of the first insulator by the first distance.
7. The antenna module of claim 1 , wherein the antenna array further includes a partition wall having a metallic material and disposed between the first radiator and the second radiator.
8. The antenna module of claim 1 , wherein the antenna array further includes a wireless communication chip or circuit board disposed on a lower surface of the first insulator and supplying an electrical signal to the at least one feeder.
9. A base station comprising a plurality of antenna arrays, the antenna array including:
a first insulator having a plate shape and having a conductive pattern formed to allow an electrical signal to flow;
a first radiator disposed to be spaced apart from an upper surface of the first insulator to a lower surface thereof by a predetermined first distance;
a second radiator disposed to be spaced apart from the first radiator by a predetermined second distance on a horizontal plane where the first radiator is disposed;
at least one feeder electrically connected to the conductive pattern and formed to supply electrical signals to the first and second radiators; and
a second insulator disposed on the upper surface of the first insulator and fixing the at least one feeder to be spaced apart by a predetermined third distance from a lower surface of a horizontal plane where the first and second radiators are disposed.
10. The base station of claim 9 , wherein the at least one feeder includes:
a first feeder having one end electrically connected to the conductive pattern, having other end spaced apart from a lower surface of the first radiator by the third distance, and supplying an electrical signal related to horizontal polarization to the first radiator;
a second feeder having one end electrically connected to the conductive pattern, having other end spaced apart from the lower surface of the first radiator by the third distance, and supplying an electrical signal related to vertical polarization to the first radiator;
a third feeder having one end electrically connected to the conductive pattern, having other end spaced apart from a lower surface of the second radiator by the third distance, and supplying an electrical signal related to horizontal polarization to the second radiator; and
a fourth feeder having one end electrically connected to the conductive pattern, having other end spaced apart from the lower surface of the second radiator by the third distance, and supplying an electrical signal related to vertical polarization to the second radiator.
11. The base station of claim 10 , wherein each of the first, second, third, and fourth feeders includes:
a first segment forming a right angle with the upper surface of the first insulator and extending toward the first or second radiator, and
a second segment forming a right angle with the first segment and being spaced apart by the third distance from, in parallel with, the lower surface of the horizontal plane where the first and second radiators are disposed.
12. The base station of claim 11 , wherein an extension line of the second segment of the first feeder and an extension line of the second segment of the second feeder form a right angle with each other, and an extension line of the second segment of the third feeder and an extension line of the second segment of the further feeder form a right angle with each other.
13. The base station of claim 9 , wherein the antenna array further includes a third insulator disposed on the upper surface of the first insulator and fixing the first and second radiators such that lower surfaces of the first and second radiators are spaced apart from the upper surface of the first insulator by the first distance.
14. The base station of claim 9 , wherein the antenna array further includes a radome disposed on the upper surface of the first insulator and having a first radiator mounting portion and a second radiator mounting portion such that the first and second radiators are fixed to and spaced apart from the upper surface of the first insulator by the first distance.
15. The base station of claim 9 , wherein the antenna array further includes a partition wall having a metallic material and disposed between the first radiator and the second radiator.