# US 2023/0056876 A1 · An array antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0056876 A1 - Document ID: US20230056876A1 - Status: Published application - Kind: A1 - Application number: 17/796,905 - Filed: 2020-02-05 - Published: 2023-02-23 - Earliest claimed: 2020-02-05 - Assignees: Saab AB - Applicants: Saab AB - Inventors: Max Wallén; Bengt Svensson; Mussie Gebretnsae - Web page: https://patentgrep.com/patent/US20230056876A1 ## CPC - H01Q 21/0087: {Apparatus or processes specially adapted for manufacturing antenna arrays (manufacturing waveguides H01P11/00)} - H01Q 1/12: Supports; Mounting means - H01Q 1/523: {between antennas of an array} - H01Q 13/18: the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas} - H01Q 21/064: {using horn or slot aerials (slotted waveguides arrays H01Q21/005)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract The present disclosure relates to an array antenna extending along a first axis in a first direction in a first plane and a second axis in a second direction in the first plane, the first direction being perpendicular to the second direction, the array antenna including; a substrate having a first side and an opposing second side; a plurality of connectors extending in a third direction from the first side, the third direction being perpendicular to the first plane; an antenna element module having a radiating side and an opposing coupling side, wherein the antenna element module includes a plurality of antenna elements arranged on the radiating side and an electromagnetic shielding structure arranged on the coupling side. ## Claims ### Claim 1 An array antenna extending along a first axis in a first direction in a first plane, and a second axis in a second direction in the first plane, the first direction being perpendicular to the second direction, the array antenna comprising: a substrate having a first side and an opposing second side; a plurality of connectors extending in a third direction from the first side, the third direction being perpendicular to the first plane; and an antenna element module having a radiating side and an opposing coupling side, wherein the antenna element module comprises a plurality of antenna elements arranged on the radiating side and an electromagnetic shielding structure arranged on the coupling side, the electromagnetic shielding structure having a connecting portion arranged to be mounted to the first side of the substrate; wherein the substrate is arranged to be coupled to the antenna element module such that the first side of the substrate faces the coupling side of the antenna element module and such that each connector is coupled to a corresponding antenna element of the plurality of antenna elements, and wherein the connecting portion of the electromagnetic shielding structure is joined to the first side. ### Claim 2 (depends on 1) The array antenna according to claim 1, wherein the electromagnetic shielding structure, extends from the coupling side in a direction opposite to the third direction, wherein the electromagnetic shielding structure comprises a plurality of chambers, each chamber being defined by an inner shielding surface enclosing each chamber. ### Claim 3 (depends on 1) The array antenna according to claim 1, wherein the substrate further comprises at least one electrical component on the first side, and wherein each electrical component is enclosed by a corresponding one of plurality of chambers. ### Claim 4 (depends on 1) The array antenna according to claim 1, wherein the electromagnetic shielding structure further comprises a plurality of connector enclosures, each connector enclosure being defined by an inner enclosure surface, wherein the plurality of connector enclosures each extend in the third direction through the coupling surface, forming a passage to a radiating section. ### Claim 5 (depends on 4) The array antenna according to claim 4, wherein each connector is enclosed by a corresponding one of the plurality of connector enclosures. ### Claim 6 (depends on 1) The array antenna according to claim 1, wherein at least a part of the electromagnetic shielding structure forms a continuous structure. ### Claim 7 (depends on 1) The array antenna according to claim 1, wherein each of the connectors are galvanically isolated from the electromagnetic shielding structure. ### Claim 8 (depends on 1) The array antenna according to claim 1, wherein the antenna elements are at least one of slot antenna elements, notch antenna elements, and dipole antenna elements. ### Claim 9 (depends on 2) The array antenna according to claim 2, wherein the plurality of chambers comprises a tubular and/or any polygonal form extending in a direction perpendicular to the first plane. ### Claim 10 (depends on 4) The array antenna according to claim 4, wherein the plurality of connector enclosures comprises a tubular and/or polygonal form extending in a direction perpendicular to the first plane. ### Claim 11 (depends on 1) The array antenna according to claim 1, wherein there is a distance between the first side of the substrate and the coupling side of the antenna element module in the third direction. ### Claim 12 (depends on 1) The array antenna according to claim 1, wherein the connecting portion of the electromagnetic shielding structure is joined to the first side of the substrate by at least one of adhesive, welding, soldering, and pressure. ### Claim 13 A method for manufacturing an array antenna extending along a first axis in a first direction in a first plane and a second axis in a second direction in the first plane, the method comprising: providing a substrate having a first side and a second side; forming an antenna element module having a radiating side and an opposing coupling side, the antenna element module comprising a plurality of antenna elements, and an electromagnetic shielding structure having a connecting portion, wherein the plurality of antenna elements are arranged on the radiating side and the electromagnetic shielding structure arranged on the coupling side of the antenna element module; assembling a connector on the first side of the substrate, the connector extending in a third direction being perpendicular to the first plane and; mounting the connecting portion of the electromagnetic shielding structure to the first side of the substrate. ### Claim 14 (depends on 13) The method according to claim 13, further comprising: preceding the step of mounting the connecting portion of the electromagnetic shielding structure to the first side of the substrate, mounting at least one electrical component on the first side of the substrate, wherein the electromagnetic shielding structure comprises a plurality of chambers, and a plurality of connector enclosures, wherein the step of mounting the connecting portion of the electromagnetic shielding structure to the first side of the substrate is performed such that each electrical component is enclosed by a corresponding one of the plurality of chambers and each connector is enclosed by a corresponding one of the plurality of connector enclosures. ### Claim 15 (depends on 13) The method according to claim 13, wherein the antenna element module is formed by additive manufacturing or milling. ### Claim 16 (depends on 1) A vehicle comprising the array antenna according to claim 1. ### Claim 17 (depends on 1) A base station comprising the array antenna according to claim 1.