# US 12,003,015 B2 · Antenna module, manufacturing method thereof, and collective board > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,015 B2 - Document ID: US12003015B2 - Status: Granted - Kind: B2 - Application number: 17/702,786 - Filed: 2022-03-24 - Published: 2022-07-07 - Granted: 2024-06-04 - Earliest claimed: 2019-09-27 - Assignees: Murata Manufacturing Co., Ltd. - Applicants: Murata Manufacturing Co., Ltd. - Inventors: Yuri Yamakawa; Shigeru Tago; Yoshiki Yamada - Web page: https://patentgrep.com/patent/US12003015B2 ## CPC - H01Q 1/2283: {mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package} - H01Q 1/38: 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)} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 1/523: {between antennas of an array} - H01Q 9/0407: {Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40)} - H01Q 21/0025: {Modular arrays} - H01Q 21/06: Arrays of individually energised antenna units similarly polarised and spaced apart - H01Q 21/065: {Patch antenna array} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna module including a dielectric substrate formed by stacking a plurality of dielectric layers, a radiating element formed on or in the dielectric substrate, a ground electrode facing the radiating element, and peripheral electrodes that are formed in a plurality of layers between the radiating element and the ground electrode at an outer periphery of the dielectric substrate. ## Claims ### Claim 1 An antenna module comprising: a dielectric substrate formed by stacking a plurality of dielectric layers; a plurality of radiating elements formed on or within the dielectric substrate; a ground electrode facing the plurality of radiating elements; and peripheral electrodes formed in the plurality of dielectric layers between the plurality of radiating elements and the ground electrode at an outer periphery of the dielectric substrate when viewed in a plan view in a normal direction of the dielectric substrate, the peripheral electrodes being electrically coupled to the ground electrode, wherein a length of a first peripheral electrode disposed along a long side of the dielectric substrate, among the peripheral electrodes, is different from a length of a second peripheral electrode disposed along a short side of the dielectric substrate, among the peripheral electrodes. ### Claim 2 (depends on 1) The antenna module of claim 1, wherein the plurality of dielectric layers are stacked such that the peripheral electrodes form conductive walls. ### Claim 3 (depends on 1) The antenna module of claim 1, wherein the peripheral electrodes are capacitive-coupled to the ground electrode. ### Claim 4 (depends on 1) The antenna module of claim 1, further comprising: a plurality of vias that connect the peripheral electrodes to each other. ### Claim 5 (depends on 1) The antenna module of claim 1, further comprising: a plurality of vias that connect the peripheral electrodes and the ground electrode. ### Claim 6 (depends on 4) The antenna module of claim 4, wherein when the plurality of vias are viewed in the plan view in the normal direction of the dielectric substrate, vias formed in adjacent dielectric layers of the plurality of dielectric layers do not overlap. ### Claim 7 (depends on 1) The antenna module of claim 1, wherein the peripheral electrodes are formed in all dielectric layers between the plurality of radiating elements and the ground electrode. ### Claim 8 (depends on 1) The antenna module of claim 1, wherein a plurality of cavities are formed in the peripheral electrodes. ### Claim 9 (depends on 1) The antenna module of claim 1, wherein when the peripheral electrodes are viewed in the plan view in the normal direction of the dielectric substrate, the peripheral electrodes are symmetrically arranged with respect to the plurality of radiating elements. ### Claim 10 (depends on 1) The antenna module of claim 1, wherein in the dielectric substrate, a wiring region is formed in a dielectric layer opposite to the plurality of radiating elements with respect to the around, electrode, and the wiring region does not include the peripheral electrodes. ### Claim 11 (depends on 1) The antenna module of claim 1, wherein when viewed in the plan view in the normal direction of the dielectric substrate, as the peripheral electrodes approach the ground electrode, the peripheral electrodes approach a center of the plurality of radiating elements. ### Claim 12 (depends on 1) The antenna module of claim 1, wherein the dielectric substrate includes first and second sides of a first length and third and fourth sides of a second length, the first length being greater than the second length. ### Claim 13 (depends on 12) The antenna module of claim 12, wherein a first plurality of the peripheral electrodes formed along a periphery of the first and second sides have a third length in a lengthwise direction of the first and second sides, and a second plurality of the peripheral electrodes formed along a periphery of the third and fourth sides have a fourth length in a lengthwise direction of the third and fourth sides. ### Claim 14 (depends on 13) The antenna module of claim 13, wherein the third length of the first plurality of the peripheral electrodes is less than the fourth length of the second plurality of the peripheral electrodes. ### Claim 15 (depends on 13) The antenna module of claim 13, wherein a number of the first plurality of the peripheral electrodes is greater than a number of the second plurality of the peripheral electrodes. ### Claim 16 (depends on 1) The antenna module of claim 1, wherein the length of the first peripheral electrode is less than the length of the second peripheral electrode. ### Claim 17 (depends on 1) The antenna module of claim 1, wherein a width of the first peripheral electrode is less than a width of the second peripheral electrode. ### Claim 18 (depends on 1) The antenna module of claim 1, wherein the first peripheral electrode is among a plurality of first peripheral electrodes spaced apart from one another. ### Claim 19 An antenna module comprising: a dielectric substrate formed by stacking a plurality of dielectric layers; a plurality of radiating elements formed on or within the dielectric substrate; a ground electrode facing the plurality of radiating elements; and peripheral electrodes formed in the plurality of dielectric layers between the plurality of radiating elements and the ground electrode, the peripheral electrodes being electrically coupled to the ground electrode and including: first peripheral electrodes disposed along a long side of the dielectric substrate; and second peripheral electrodes disposed along a short side of the dielectric substrate, wherein the first peripheral electrodes have a length that is less than a length of the second peripheral electrodes. ### Claim 20 (depends on 19) The antenna module of claim 19, wherein a width of the first peripheral electrode is less than a width of the second peripheral electrode.