Sandwich panel type antenna integrated lattice core

Patent metadata

Field	Value
Publication number	US-12512594-B2
Application number	US-202318509191-A
Country	US
Kind code	B2
Filing date	Nov 14, 2023
Priority date	Nov 14, 2022
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

Provided is an antenna integrated structure in which an antenna is inserted into ground vehicle, marine ship and aircraft structure, and more particularly, a sandwich panel type antenna integrated latticecore having a structure for improving communication performance of an antenna module.

First claim

What is claimed is:

1 . A sandwich panel type antenna integrated lattice core, the lattice core comprising:
a core base having a certain area space formed below an upper surface for an antenna module to be inserted into an upper center; and a core cap coupled to the upper surface of the core base to seal the space, wherein each of the core base and the core cap has a plurality of sandwich panel-shaped core units repeatedly coupled with each other in a surface direction, wherein the core base includes a core cap accommodation groove recessed downward from a center of the upper surface for the antenna module and the core cap to be accommodated in the groove, and a periphery of an upper surface of the core cap and a periphery of the upper surface of the core base match each other when the core cap is accommodated in the core cap accommodation groove, wherein the core cap includes an antenna module accommodation groove recessed downward from a lower surface to accommodate and fix the antenna module thereto for the antenna module to be disposed in a center of the lattice core when the core cap is accommodated in the core cap accommodation groove.

2 . The lattice core of claim 1 , wherein a cylinder-shaped accommodation hole for application of a power feeder of the antenna module is formed in a lower surface of the core cap accommodation groove and passes through the core base.

3 . The lattice core of claim 2 , wherein in the lower surface of the core cap accommodation groove, a plurality of lower plate units are spaced apart from each other, and fixed and supported by the core unit.

4 . The lattice core of claim 3 , wherein the lower surface of the core cap accommodation groove is cut horizontally and vertically by the lower plate unit.

5 . The lattice core of claim 2 , wherein in a first side plate forming a side surface of the power feeder accommodation hole, a plurality of first panels are spaced apart from each other along its periphery, and fixed and supported by being coupled with the core unit.

6 . The lattice core of claim 1 , wherein the core unit includes:
a flat upper flange; a flat lower flange disposed below the upper flange; a rod connecting the upper flange with the lower flange; a first arm extending outward in a plane direction of the upper flange and extending obliquely downward; a second arm extending outward in a plane direction of the lower flange and extending obliquely upward; a third arm extending outward in a plane direction of the rod and extending obliquely downward; and a fourth arm extending outward in the plane direction of the rod and extending obliquely upward.

7 . The lattice core of claim 6 , wherein the core unit includes:
a first floor where an end of the second arm and an end of the third arm are coupled with each other; a second floor where an end of the third arm that is disposed at a center of the rod and an end of the fourth arm are coupled with each other; and a third floor where an end of the first arm and an end of fourth arm are coupled with each other.

8 . The lattice core of claim 7 , wherein the plurality of core units are repeatedly formed and coupled with each other in the surface direction.

9 . The lattice core of claim 7 , wherein each of the first to fourth arms has an upward or downward inclination angle of 40 to 50 degrees.

10 . The lattice core of claim 1 , wherein the core cap includes the core unit having a repetitive pattern, and a second side plate surrounds a periphery of the core unit in the surface direction along its periphery.

11 . The lattice core of claim 10 , wherein the second side plate has a plurality of second panels spaced apart from each other along its periphery, and fixed and supported by being coupled with the core unit.

12 . The lattice core of claim 10 , wherein a load transmitted to the core cap is distributed by being sequentially transmitted to the core cap, the core unit disposed in the core cap, the antenna module, the core base, and the core unit disposed in the core base.

13 . The lattice core of claim 1 , wherein the core cap transmits a compressive load applied to the core cap to the core base as a lower edge of the core cap is in direct contact with a lower edge of the core cap accommodation groove of the core base.

14 . The lattice core of claim 1 , wherein a fixing protrusion for fixing the antenna module during fit-coupling of the antenna module protrudes inward from an inner surface of the antenna module accommodation groove.

15 . A sandwich panel type antenna integrated lattice core, the lattice core comprising:
a core base having a certain area space formed below an upper surface for an antenna module to be inserted into an upper center; and a core cap coupled to the upper surface of the core base to seal the space, wherein each of the core base and the core cap has a plurality of sandwich panel-shaped core units repeatedly coupled with each other in a surface direction, wherein the core base includes a core cap accommodation groove recessed downward from a center of the upper surface for the antenna module and the core cap to be accommodated in the groove, and a periphery of an upper surface of the core cap and a periphery of the upper surface of the core base match each other when the core cap is accommodated in the core cap accommodation groove, wherein the core cap accommodation groove includes a first coupling part formed along an inner periphery, the core cap includes a second coupling part formed along an outer periphery, the first coupling part has concave and convex parts repeatedly formed along the periphery, and the second coupling part has convex and concave parts formed along the periphery to correspond to the concave and convex parts to thus couple the core cap to the core base by fit-coupling the first coupling part with the second coupling part.

Assignees

• Korea Aerospace Res Inst

Inventors

• Park Illkyung
• Chang Jae Won

Classifications

• H01Q1/22

  by structural association with other equipment or articles · CPC title

• H01Q1/243

  with built-in antennas · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q1/005

  Damping of vibrations; Means for reducing wind-induced forces · CPC title

• H01Q1/40

  Radiating elements coated with or embedded in protective material · CPC title