# US 10,483,639 B2 · Communication device and antenna assembly thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,639 B2 - Document ID: US10483639B2 - Status: Granted - Kind: B2 - Application number: 16/018,471 - Filed: 2018-06-26 - Published: 2018-12-27 - Granted: 2019-11-19 - Earliest claimed: 2017-06-27 - Assignees: ASUSTeK COMPUTER INC. - Applicants: Asustek Computer Inc. - Inventors: Cheng-Tse Lee - Web page: https://patentgrep.com/patent/US10483639B2 ## CPC - H01Q 5/15: for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements - 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 5/307: Individual or coupled radiating elements, each element being fed in an unspecified way - H01Q 5/314: using frequency dependent circuits or components, e.g. trap circuits or capacitors - H01Q 5/50: Feeding or matching arrangements for broad-band or multi-band operation - H01Q 13/10: Resonant slot antennas - H01Q 13/106: {Microstrip slot antennas (patch antenna elements H01Q9/0407)} - H01Q 1/243: {with built-in antennas} - H01Q 1/273: {Adaptation for carrying or wearing by persons or animals} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract The invention discloses a communication device and an antenna assembly thereof. The communication device includes a metal rim, a device metal member, and an antenna assembly. The device metal member is disposed in the metal rim. The antenna assembly includes an insulating substrate, two electrical coupling portions, a feeding part, and a feeding signal source. The insulating substrate is disposed between the device metal member and the metal rim. The two electrical coupling portions are disposed at two opposite ends of the insulating substrate and electrically coupled to the device metal member and the metal rim. The feeding part is disposed on the insulating substrate and electrically coupled to the metal rim, so as to form a first slot section and a second slot section. The feed part is electrically coupled to the metal rim. The feeding signal source is disposed on the insulating substrate, located between the feeding part and the device metal member, and electrically coupled to the feeding part and the device metal member. ## Claims ### Claim 1 A communication device, comprising: a metal rim; a device metal member, disposed in the metal rim; and an antenna assembly, comprising: an insulating substrate, disposed between the device metal member and the metal rim; two electrical coupling portions, disposed at two opposite ends of the insulating substrate and electrically coupled to the device metal member and the metal rim, a sealed slot section is enclosed by the two electrical coupling portions, the device metal member, and the metal rim; a feeding part, disposed on the insulating substrate and electrically coupled to the metal rim, so as to divide the sealed slot section into a first slot section and a second slot section whose length is less than that of the first slot section, the feeding part is configured to activate resonance modes of the first slot section in a first frequency band and a second frequency band and activate a resonance mode of the second slot section in a third frequency band; and a feeding signal source, disposed on the insulating substrate, located between the feeding part and the device metal member, and electrically coupled to the feeding part and the device metal member. ### Claim 2 (depends on 1) The communication device according to claim 1, wherein the antenna assembly further comprises a grounding part, disposed on the insulating substrate and electrically coupled to the device metal member, the two electrical coupling portions, and the feeding signal source. ### Claim 3 (depends on 2) The communication device according to claim 2, further comprising an insulating member, wherein the insulating member is disposed in the metal rim, and the device metal member is disposed on the insulating member. ### Claim 4 (depends on 3) The communication device according to claim 3, wherein the length of the device metal member in a first direction is greater than the length of the grounding part in the first direction, and the length of the device metal member in a second direction perpendicular to the first direction is greater than 0.125 time a wavelength of an electromagnetic wave at a lowest frequency in the first frequency band. ### Claim 5 (depends on 2) The communication device according to claim 2, wherein the antenna assembly further comprises a matching part, disposed in the first slot section, adjacent to the feeding part and electrically coupled to the metal rim and the grounding part. ### Claim 6 (depends on 2) The communication device according to claim 2, wherein the two electrical coupling portions are respectively electrically coupled to the grounding part. ### Claim 7 (depends on 1) The communication device according to claim 1, wherein the two electrical coupling portions comprise a capacitor component, an inductor component, or a combination thereof. ### Claim 8 An antenna assembly, applied to a communication device, the communication device comprising a metal rim and a device metal member, the device metal member being disposed in the metal rim, and the antenna assembly comprising: an insulating substrate, disposed between the device metal member and the metal rim; two electrical coupling portions, disposed at two opposite ends of the insulating substrate and electrically coupled to the device metal member and the metal rim, a sealed slot section is enclosed by the two electrical coupling portions, the device metal member, and the metal rim; a feeding part, disposed on the insulating substrate and electrically coupled to the metal rim, so as to divide the sealed slot section into a first slot section and a second slot section whose length is less than that of the first slot section, the feeding part is configured to activate resonance modes of the first slot section in a first frequency band and a second frequency band and activate a resonance mode of the second slot section in a third frequency band; and a feeding signal source, disposed on the insulating substrate, located between the feeding part and the device metal member, and electrically coupled to the feeding part and the device metal member. ### Claim 9 (depends on 8) The antenna assembly according to claim 8, further comprising a grounding part, disposed on the insulating substrate and electrically coupled to the device metal member, the two electrical coupling portions, and the feeding signal source. ### Claim 10 (depends on 9) The antenna assembly according to claim 9, further comprising a matching part, disposed in the first slot section, adjacent to the feeding part, and electrically coupled to the metal rim and the grounding part.