# US 11,309,641 B2 · Antenna and wireless module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,641 B2 - Document ID: US11309641B2 - Status: Granted - Kind: B2 - Application number: 16/251,618 - Filed: 2019-01-18 - Published: 2019-05-23 - Granted: 2022-04-19 - Earliest claimed: 2016-07-26 - Assignees: Murata Manufacturing Co., Ltd. - Applicants: Murata Manufacturing Co., Ltd. - Inventors: Yuichi Ito; Masahiro Izawa; Masayuki Kobayashi; Nobumitsu Amachi - Web page: https://patentgrep.com/patent/US11309641B2 ## CPC - H01Q 23/00: Antennas with active circuits or circuit elements integrated within them or attached to them - 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 5/328: between a radiating element and ground - H01Q 5/335: at the feed, e.g. for impedance matching - H01Q 9/0407: {Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40)} - H01Q 19/30: the primary active element being centre-fed and substantially straight, e.g. Yagi antenna - H01Q 25/04: Multimode antennas {(corrugated horns H01Q13/0208)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna (101) includes a grounded conductive foil (110) disposed on a module substrate (140), a first conductive foil (111), and a second conductive foil (112). The first conductive foil (111) and the second conductive foil (112) are disposed on the module substrate (140), are elongated, and do not overlap with the grounded conductive foil (110) in a plan view of the module substrate (140). The first conductive foil (111) has one end supplied with an antenna signal and the other end that is open. The second conductive foil (112) has one end connected to the grounded conductive foil (110) and the other end that is open. A wireless module (120) includes a circuit unit (130) including a communication circuit and provided to the module substrate (140) on which the antenna (101) is formed. ## Claims ### Claim 1 An antenna comprising: a substrate including a first surface and a second surface opposed to the first surface; a grounded conductive foil disposed on the substrate; a first conductive foil; and a second conductive foil, wherein the first conductive foil and the second conductive foil are disposed on the substrate, are elongated, and are not overlapping with the grounded conductive foil in a plan view of the substrate, wherein the first conductive foil has one end supplied with an antenna signal and another end being open; wherein the second conductive foil has one end connected to the grounded conductive foil and another end being open; and wherein the first conductive foil and the second conductive foil are arranged on the first surface, and wherein the grounded conductive foil is arranged on the second surface and is connected to the second conductive foil through a via without overlapping the first and second conductive foils in the plan view of the substrate. ### Claim 2 (depends on 1) The antenna according to claim 1, wherein the first conductive foil and the second conductive foil are disposed substantially parallel to each other and disposed side by side in a direction orthogonal to the elongated direction of each of the first conductive foil and the second conductive foil. ### Claim 3 (depends on 2) The antenna according to claim 2, wherein the second conductive foil includes two second conductive foils being parallel to each other, and wherein the two second conductive foils are respectively disposed at opposite sides of the first conductive foil. ### Claim 4 (depends on 3) The antenna according to claim 3, wherein the one end of the first conductive foil and the one end of each of the two second conductive foils are located along an edge of the grounded conductive foil in the plan view of the substrate. ### Claim 5 (depends on 3) The antenna according to claim 3, further comprising: an impedance element, wherein the one end of each of the two second conductive foils is connected to the grounded conductive foil via the impedance element. ### Claim 6 (depends on 3) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 3. ### Claim 7 (depends on 2) The antenna according to claim 2, wherein the one end of the first conductive foil and the one end of each of the two second conductive foils are located along an edge of the grounded conductive foil in the plan view of the substrate. ### Claim 8 (depends on 2) The antenna according to claim 2, further comprising: an impedance element, wherein the one end of each of the two second conductive foils is connected to the grounded conductive foil via the impedance element. ### Claim 9 (depends on 2) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 2. ### Claim 10 (depends on 1) The antenna according to claim 1, wherein the one end of the first conductive foil and the one end of the second conductive foil are located along an edge of the grounded conductive foil in the plan view of the substrate. ### Claim 11 (depends on 10) The antenna according to claim 10, further comprising: a wiring conductor transmitting the antenna signal, wherein the one end of the first conductive foil is connected to the wiring conductor. ### Claim 12 (depends on 11) The antenna according to claim 11, further comprising: an impedance element, wherein the one end of each of the two second conductive foils is connected to the grounded conductive foil via the impedance element. ### Claim 13 (depends on 11) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 11. ### Claim 14 (depends on 10) The antenna according to claim 10, further comprising: an impedance element, wherein the one end of each of the two second conductive foils is connected to the grounded conductive foil via the impedance element. ### Claim 15 (depends on 10) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 10. ### Claim 16 (depends on 1) The antenna according to claim 1, further comprising: an impedance element, wherein the one end of the second conductive foil is connected to the grounded conductive foil via the impedance element. ### Claim 17 (depends on 16) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 16. ### Claim 18 (depends on 1) A wireless module comprising a communication circuit provided on the substrate of the antenna according to claim 1. ### Claim 19 (depends on 1) The antenna according to claim 1, wherein the second conductive foil is an extension of the grounded conductive foil in the plain view of the substrate. ### Claim 20 (depends on 1) The antenna according to claim 1, wherein the grounded conductive has a recess, and the one end of the first conductive foil is disposed within the recess.