# US 10,374,314 B2 · Composite patch antenna device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,314 B2 - Document ID: US10374314B2 - Status: Granted - Kind: B2 - Application number: 15/776,648 - Filed: 2016-11-18 - Published: 2018-11-15 - Granted: 2019-08-06 - Earliest claimed: 2015-11-19 - Assignees: Harada Industry Co., Ltd. - Applicants: Harada Industry Co., Ltd. - Inventors: Shinji Iino - Web page: https://patentgrep.com/patent/US10374314B2 ## CPC - H01Q 9/0414: {in a stacked or folded configuration} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 5/35: using two or more simultaneously fed points - H01Q 9/0428: {radiating a circular polarised wave} - H01Q 9/0435: {using two feed points} - H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} - H01Q 21/30: Combinations of separate antenna units operating in different wavebands and connected to a common feeder system - H01Q 1/32: Adaptation for use in or on road or rail vehicles - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A composite patch antenna composite patch antenna device is capable of receiving signals in multiple frequency bands. The composite patch antenna composite patch antenna device includes a circuit board, a gap patch antenna, and a dielectric patch antenna. The gap patch antenna has a radiation element that is disposed in parallel with a predetermined air gap with respect to the circuit board, that has a hole section passing through substantially a center. The dielectric patch antenna is stacked on the radiation element of the gap patch antenna in the state of being electrically insulated, and has a second feeding line that is connected to the radiation electrode and that is connected to the second feeding section the circuit board by passing through the through-hole of the dielectric layer and the hole section of the radiation element of the gap patch antenna. ## Claims ### Claim 1 A composite patch antenna device capable of receiving signals in multiple frequency bands, comprising: a circuit board to which a cable from external equipment is connected and on which an amplifier circuit is placed, the circuit board having a first feeding section for a first frequency band, a second feeding section for a second frequency band different from the first frequency band, and a ground plate disposed on a surface opposite to a surface on which the amplifier circuit is placed; a gap patch antenna corresponding to the first frequency band, the gap patch antenna having a radiation element that is disposed in parallel with the circuit board with a predetermined air gap with respect to the circuit board, that has hole section passing through substantially a center of the radiation element, and that constitutes a circularly polarized wave microstrip antenna together with the ground plate of the circuit board, and a first feeding line that is configured of the same member as the radiation element, that extends from a peripheral section of the radiation element, and that is connected to the first feeding section of the circuit board; and a dielectric patch antenna corresponding to the second frequency band and being stacked on the radiation element of the gap patch antenna in the state of being electrically insulated from the radiation element, the dielectric patch antenna having a dielectric layer that has a through-hole, a radiation electrode that is disposed on one surface of the dielectric layer, a ground electrode that is disposed on the other surface of the dielectric layer and that has a hole section at a position corresponding to the through-hole of the dielectric layer, and a second feeding line that is connected to the radiation electrode and that is connected to the second feeding section of the circuit board by passing through the through-hole of the dielectric layer, the hole section of the ground electrode and the hole section of the radiation element of the gap patch antenna. ### Claim 2 (depends on 1) The composite patch antenna device according to claim 1, wherein the dielectric patch antenna is disposed in which the radiation electrode is disposed to be rotated around the second feeding line with respect to the radiation element of the gap patch antenna by a predetermined angle for improving an antenna characteristic. ### Claim 3 (depends on 2) The composite patch antenna device according to claim 2, wherein a cable connected to the circuit board is connected in such that a longitudinal direction thereof is orthogonal to a peripheral section of the circuit board, and the first feeding line of the gap patch antenna extends from a peripheral section of the radiation element in an orthogonal direction with respect to an extended axis in the longitudinal direction of the cable connected to the circuit board. ### Claim 4 (depends on 2) The composite patch antenna device according to claim 2, wherein the first frequency band of the circuit board is higher than the second frequency band. ### Claim 5 (depends on 2) The composite patch antenna device according to claim 2, wherein the first frequency band of the circuit board is lower than the second frequency band. ### Claim 6 (depends on 1) The composite patch antenna device according to claim 1, wherein a cable connected to the circuit board is connected in such that a longitudinal direction thereof is orthogonal to a peripheral section of the circuit board, and the first feeding line of the gap patch antenna extends from a peripheral section of the radiation element in an orthogonal direction with respect to an extended axis in the longitudinal direction of the cable connected to the circuit board. ### Claim 7 (depends on 6) The composite patch antenna device according to claim 6, wherein the first frequency band of the circuit board is higher than the second frequency band. ### Claim 8 (depends on 6) The composite patch antenna device according to claim 6, wherein the first frequency band of the circuit board is lower than the second frequency band. ### Claim 9 (depends on 1) The composite patch antenna device according to claim 1, wherein the first frequency band of the circuit board is higher than the second frequency band. ### Claim 10 (depends on 1) The composite patch antenna device according to claim 1, wherein the first frequency band of the circuit board is lower than the second frequency band.