# US 12,603,429 B2 · Mobile device supporting wideband operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,429 B2 - Document ID: US12603429B2 - Status: Granted - Kind: B2 - Application number: 18/896,144 - Filed: 2024-09-25 - Published: 2026-01-08 - Granted: 2026-04-14 - Earliest claimed: 2024-07-05 - Assignees: Acer Incorporated - Applicants: Acer Incorporated - Inventors: Kun-Sheng Chang; Ching-Chi Lin - Web page: https://patentgrep.com/patent/US12603429B2 ## CPC - H01Q 1/2266: {disposed inside the computer} - H01Q 5/20: characterised by the operating wavebands - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 5/10: Resonant antennas - H01Q 5/357: using a single feed point - H01Q 5/378: Combination of fed elements with parasitic elements - H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)} - H01Q 9/40: Element having extended radiating surface - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A mobile device includes a feeding radiation element, a first radiation element, a second radiation element, a grounding radiation element, a shorting radiation element, and a third radiation element. The first radiation element is coupled to the feeding radiation element. The second radiation element is coupled to the feeding radiation element. The first radiation element and the second radiation element substantially extend in opposite directions. The first radiation element is further coupled through the grounding radiation element to a ground voltage. The shorting radiation element is coupled between the feeding radiation element and the grounding radiation element. A closed loop structure is formed by the feeding radiation element, the first radiation element, the grounding radiation element, and the shorting radiation element. The third radiation element is coupled to the ground voltage. The third radiation element is adjacent to the feeding radiation element and the second radiation element. ## Claims ### Claim 1 A mobile device supporting wideband operations, comprising: a feeding radiation element, having a feeding point; a first radiation element, coupled to the feeding radiation element; a second radiation element, coupled to the feeding radiation element, wherein the first radiation element and the second radiation element substantially extend in opposite directions; a grounding radiation element, wherein the first radiation element is further coupled through the grounding radiation element to a ground voltage; a shorting radiation element, coupled between the feeding radiation element and the grounding radiation element, wherein a closed loop structure is formed by the feeding radiation element, the first radiation element, the grounding radiation element, and the shorting radiation element; and a third radiation element, coupled to the ground voltage, wherein the third radiation element is adjacent to the feeding radiation element and the second radiation element; wherein an antenna structure is formed by the feeding radiation element, the first radiation element, the second radiation element, the grounding radiation element, the shorting radiation element, and the third radiation element. ### Claim 2 (depends on 1) The mobile device as claimed in claim 1, further comprising: a dielectric substrate, wherein the feeding radiation element, the first radiation element, the second radiation element, the grounding radiation element, the shorting radiation element, and the third radiation element are disposed on a same surface of the dielectric substrate. ### Claim 3 (depends on 1) The mobile device as claimed in claim 1, wherein the third radiation element has a first notch and a second notch, and the second radiation element at least partially extends into the first notch. ### Claim 4 (depends on 1) The mobile device as claimed in claim 1, wherein a first coupling gap is formed between the feeding radiation element and the third radiation element. ### Claim 5 (depends on 4) The mobile device as claimed in claim 4, wherein a second coupling gap is formed between the second radiation element and the third radiation element. ### Claim 6 (depends on 5) The mobile device as claimed in claim 5, wherein a width of each of the first coupling gap and the second coupling gap is from 1 mm to 2 mm. ### Claim 7 (depends on 1) The mobile device as claimed in claim 1, wherein the antenna structure covers a first frequency band, a second frequency band, and a third frequency band. ### Claim 8 (depends on 7) The mobile device as claimed in claim 7, wherein the first frequency band is from 2400 MHz to 2500 MHz. ### Claim 9 (depends on 7) The mobile device as claimed in claim 7, wherein the second frequency band is from 5150 MHz to 5850 MHz. ### Claim 10 (depends on 7) The mobile device as claimed in claim 7, wherein the third frequency band is from 5925 MHz to 7125 MHz. ### Claim 11 (depends on 7) The mobile device as claimed in claim 7, wherein a total length of the feeding radiation element, the first radiation element, and the grounding radiation element is substantially equal to 0.5 wavelength of the first frequency band. ### Claim 12 (depends on 7) The mobile device as claimed in claim 7, wherein a total length of the feeding radiation element and the first radiation element is substantially equal to 0.5 wavelength of the second frequency band. ### Claim 13 (depends on 7) The mobile device as claimed in claim 7, wherein a length of the third radiation element is substantially equal to 0.25 wavelength of the second frequency band. ### Claim 14 (depends on 1) The mobile device as claimed in claim 1, wherein a length of the shorting radiation element is from 1 mm to 3 mm. ### Claim 15 (depends on 1) The mobile device as claimed in claim 1, wherein the shorting radiation element is coupled to a first connection point on the feeding radiation element, and a distance between the first connection point and the feeding point is from 1 mm to 2 mm.