# US 10,122,070 B2 · Diversity antenna and mobile terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,070 B2 - Document ID: US10122070B2 - Status: Granted - Kind: B2 - Application number: 15/347,790 - Filed: 2016-11-10 - Published: 2017-09-21 - Granted: 2018-11-06 - Earliest claimed: 2016-03-16 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Linchuan Wang; Zonglin Xue; Xiaofeng Xiong - Web page: https://patentgrep.com/patent/US10122070B2 ## CPC - H01Q 1/243: {with built-in antennas} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 5/314: using frequency dependent circuits or components, e.g. trap circuits or capacitors - H01Q 5/335: at the feed, e.g. for impedance matching - H01Q 5/371: Branching current paths - H01Q 5/50: Feeding or matching arrangements for broad-band or multi-band operation - H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)} - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 13/10: Resonant slot antennas - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A diversity antenna applied in a mobile terminal and a mobile terminal are provided. The mobile terminal includes a metal housing and the metal housing includes a housing body and a receiving region located over the housing body, and the receiving region is a frame structure in which a side is provided with a slit. The diversity antenna includes a feed point, a first ground point and a second ground point, and the feed point, the first ground point and the second ground point are all arranged on the housing body, and a distance between the feed point and the slit is 3 mm to 15 mm. The diversity antenna further includes a capacitive element connected to the frame structure and arranged in series with the feed point, and a switch arranged in series with the first ground point. ## Claims ### Claim 1 A diversity antenna applied in a mobile terminal having a metal housing, the metal housing comprising a housing body and a receiving region located over the housing body, the receiving region being a frame structure in which a side is provided with a slit, wherein the diversity antenna comprises: a feed point, a first ground point and a second ground point, wherein the feed point, the first ground point and the second ground point are all arranged on the housing body, and a distance between the feed point and the slit is 3 mm to 15 mm; a capacitive element connected to the frame structure and arranged in series with the feed point; and a switch arranged in series with the first ground point. ### Claim 2 (depends on 1) The diversity antenna according to claim 1, wherein the capacitive element is a variable capacitor. ### Claim 3 (depends on 2) The diversity antenna according to claim 2, wherein the switch is a single-pole single-throw switch or a single-pole double-throw switch. ### Claim 4 (depends on 1) The diversity antenna according to claim 1, wherein the first ground point and the second ground point are arranged at the same side of the feed point. ### Claim 5 (depends on 4) The diversity antenna according to claim 4, wherein the first ground point is arranged between the second ground point and the feed point. ### Claim 6 (depends on 1) The diversity antenna according to claim 1, wherein a total path length of the feed point and the first ground point is less than a half wavelength of 800 MHz to 960 MHz. ### Claim 7 (depends on 2) The diversity antenna according to claim 2, wherein a total path length of the feed point and the first ground point is less than a half wavelength of 800 MHz to 960 MHz. ### Claim 8 (depends on 3) The diversity antenna according to claim 3, wherein a total path length of the feed point and the first ground point is less than a half wavelength of 800 MHz to 960 MHz. ### Claim 9 (depends on 4) The diversity antenna according to claim 4, wherein a total path length of the feed point and the first ground point is less than a half wavelength of 800 MHz to 960 MHz. ### Claim 10 (depends on 5) The diversity antenna according to claim 5, wherein a total path length of the feed point and the first ground point is less than a half wavelength of 800 MHz to 960 MHz. ### Claim 11 (depends on 1) The diversity antenna according to claim 1, wherein a total path length of the feed point and the second ground point is less than a half wavelength of 700 MHz to 800 MHz. ### Claim 12 (depends on 2) The diversity antenna according to claim 2, wherein a total path length of the feed point and the second ground point is less than a half wavelength of 700 MHz to 800 MHz. ### Claim 13 (depends on 3) The diversity antenna according to claim 3, wherein a total path length of the feed point and the second ground point is less than a half wavelength of 700 MHz to 800 MHz. ### Claim 14 (depends on 4) The diversity antenna according to claim 4, wherein a total path length of the feed point and the second ground point is less than a half wavelength of 700 MHz to 800 MHz. ### Claim 15 (depends on 5) The diversity antenna according to claim 5, wherein a total path length of the feed point and the second ground point is less than a half wavelength of 700 MHz to 800 MHz. ### Claim 16 (depends on 1) The diversity antenna according to claim 1, wherein the capacitive element is suspended. ### Claim 17 (depends on 2) The diversity antenna according to claim 2, wherein the capacitive element is suspended. ### Claim 18 (depends on 3) The diversity antenna according to claim 3, wherein the capacitive element is suspended. ### Claim 19 (depends on 16) The diversity antenna according to claim 16, wherein the slits are provided at two sides of the frame structure. ### Claim 20 A mobile terminal, comprising: a metal housing comprising a housing body and a receiving region located over the housing body, wherein the receiving region is a frame structure in which a side is provided with a slit; a diversity antenna comprising a feed point, a first ground point and a second ground point, wherein the feed point, the first ground point and the second ground point are all arranged on the housing body, and a distance between the feed point and the slit is 3 mm to 15 mm; a capacitive element connected with the frame structure and arranged in series with the feed point; and a switch arranged in series with the first ground point.