# US 12,113,275 B2 · Printed antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,275 B2 - Document ID: US12113275B2 - Status: Granted - Kind: B2 - Application number: 17/846,215 - Filed: 2022-06-22 - Published: 2022-10-06 - Granted: 2024-10-08 - Earliest claimed: 2019-12-23 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Dongwei Wu; Jinjin Shao; Cao Shi - Web page: https://patentgrep.com/patent/US12113275B2 ## CPC - 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 3/247: {by switching different parts of a primary active element} - H01Q 7/00: Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop - H01Q 7/005: {with variable reactance for tuning the antenna} - H01Q 15/14: Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} - H01Q 19/10: using reflecting surfaces - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A printed antenna may include a loop antenna body, a feed port, and a switch component. The loop antenna body includes a first end and a second end, there is a spacing between the first end and the second end, a connection line between the first end and the second end forms a closed loop with the loop antenna body. The feed module is configured to output a feed signal to the loop antenna body by using the feed port. The loop antenna body includes a plurality of loop antenna branches, the switch component is disposed between every two adjacent loop antenna branches, and the switch component is configured to connect or disconnect the two adjacent loop antenna branches. ## Claims ### Claim 1 A printed antenna, wherein the printed antenna is printed on a substrate, a feed module is further disposed on the substrate, and the printed antenna comprises a loop antenna body, a feed port, and at least one switch component; the loop antenna body comprises a first end and a second end, there is a spacing between the first end and the second end, a connection line between the first end and the second end forms a closed loop with the loop antenna body, the first end is configured to be connected to the feed module through the feed port, and the second end is configured to be connected to a ground point (GND); the feed module is configured to output a feed signal to the loop antenna body through the feed port; the loop antenna body comprises a plurality of loop antenna branches, the switch component is disposed between every two adjacent loop antenna branches, and the switch component is configured to connect or disconnect the two adjacent loop antenna branches; and the printed antenna further comprises a first reflector antenna body, the first reflector antenna body is disposed on one side of the loop antenna body, and the first reflector antenna body is connected to the feed module, and the first reflector antenna body comprises two first reflector antenna branches, a second switch component is disposed between the two first reflector antenna branches, and the second switch component located between the two first reflector antenna branches is configured to connect or disconnect the two first reflector antenna branches. ### Claim 2 (depends on 1) The printed antenna according to claim 1, wherein the switch component is a 0-ohm resistor; and one end of the 0-ohm resistor is connected to one of the two adjacent loop antenna branches, and the other end of the 0-ohm resistor is connected to the other one of the two adjacent loop antenna branches; or the one end of the 0-ohm resistor is connected to one of the two adjacent loop antenna branches, and the other end of the 0-ohm resistor is disconnected from the other one of the two adjacent loop antenna branches; or the one end of the 0-ohm resistor is disconnected from one of the two adjacent loop antenna branches, and the other end of the 0-ohm resistor is disconnected from the other one of the two adjacent loop antenna branches. ### Claim 3 (depends on 1) The printed antenna according to claim 1, wherein a control module is further disposed on the substrate, the switch component is a diode, and the control module is connected to the diode; one end of the diode is connected to one of the two adjacent loop antenna branches, and the other end of the diode is connected to the other one of the two adjacent loop antenna branches; and the control module is configured to control the diode to be turned on or off. ### Claim 4 (depends on 1) The printed antenna according to claim 1, wherein the printed antenna further comprises a second reflector antenna body, the second reflector antenna body is disposed on the other side of the loop antenna body, and the second reflector antenna body is connected to the feed module; and the second reflector antenna body comprises two second reflector antenna branches, third switch component is disposed between the two second reflector antenna branches, and the third switch component located between the two second reflector antenna branches is configured to connect or disconnect the two second reflector antenna branches. ### Claim 5 (depends on 1) The printed antenna according to claim 1, wherein another switch component is disposed between the second end and the GND, and the another switch component located between the second end and the GND is configured to connect or disconnect the second end and the GND. ### Claim 6 (depends on 1) The printed antenna according to claim 1, wherein the at least one switch component of the printed antenna comprises a plurality of switch parts including a first switch part, a second switch part, a third switch part, and a fourth switch part; the plurality of loop antenna branches of the loop antenna body comprises a first loop antenna branch, a second loop antenna branch, a third loop antenna branch, and a fourth loop antenna branch; one end of the first loop antenna branch is connected to the feed module through the feed port, and the first switch part is disposed between the other end of the first loop antenna branch and the second loop antenna branch; and the second switch part is disposed between the second loop antenna branch and the third loop antenna branch, the third switch part is disposed between the third loop antenna branch and one end of the fourth loop antenna branch, and the fourth switch part is disposed between the other end of the fourth loop antenna branch and the GND. ### Claim 7 (depends on 6) The printed antenna according to claim 6, wherein the first loop antenna branch is a monopole antenna. ### Claim 8 (depends on 6) The printed antenna according to claim 6, wherein an operating frequency band of the printed antenna comprises an operating frequency band of a wireless local area network WLAN standard and an operating frequency band of a long term evolution LTE standard; and radiation directions of the printed antenna comprise horizontal omnidirectional, horizontal directional, and vertical coverage. ### Claim 9 (depends on 1) The printed antenna according to claim 1, wherein: the at least one switch component includes a first switch part and a second switch part; the plurality of loop antenna branches includes a first loop antenna branch, a second loop antenna branch, and a third loop antenna branch, the first loop antenna branch is adjacent to the second loop antenna branch, and the second loop antenna branch is adjacent to the third loop antenna; the first switch part is positioned between the first and second loop antenna branches, and the second switch part is positioned between the second and third loop antenna branches. ### Claim 10 (depends on 9) The printed antenna according to claim 9, wherein: each of the first and second switch parts is a 0-ohm resistor. ### Claim 11 (depends on 9) The printed antenna according to claim 9, wherein: each of the first and second switch parts includes a diode. ### Claim 12 A printed antenna, wherein the printed antenna is printed on a substrate, a feed module is further disposed on the substrate, and the printed antenna comprises a loop antenna body, a feed port, and at least one switch component; the loop antenna body comprises a first end and a second end, there is a spacing between the first end and the second end, a connection line between the first end and the second end forms a closed loop with the loop antenna body, the first end is configured to be connected to the feed module through the feed port, and the second end is configured to be connected a ground point (GND), the feed module is configured to output a feed signal to the loop antenna body through the feed port; the loop antenna body comprises a plurality of loop antenna branches, the switch component is disposed between every two adjacent loop antenna branches, and the switch component is configured to connect or disconnect the two adjacent loop antenna branches; the at least one switch component includes a first switch component and a second switch component, the plurality of loop antenna branches includes a first loop antenna branch, a second loop antenna branch, and a third loop antenna branch, the first loop antenna branch is adjacent to the second loop antenna branch, and the second loop antenna branch is adjacent to the third loop antenna; the first switch component is positioned between the first and second loop antenna branches, and the second switch component is positioned between the second and third loop antenna branches; and the printed antenna further comprises a first reflector antenna body having a first reflector antenna branch, a second reflector antenna branch, and a third switch component positioned between the first and second reflector antenna branches. ### Claim 13 (depends on 12) The printed antenna according to claim 12, wherein the printed antenna further comprises a second reflector antenna body having a third reflector antenna branch, a fourth reflector antenna branch, and a fourth switch component positioned between the third and fourth reflector antenna branches. ### Claim 14 (depends on 13) The printed antenna according to claim 13, wherein the first and second reflector antenna bodies are respectively positioned on opposite sides of the loop antenna body.