# US 12,763,474 B2 · Antenna apparatus and terminal device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,763,474 B2 - Document ID: US12763474B2 - Status: Granted - Kind: B2 - Application number: 18/706,129 - Filed: 2022-10-20 - Published: 2026-05-07 - Granted: 2026-10-13 - Earliest claimed: 2021-11-05 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Qing Liu; Qi Shi; Qun Guo - Web page: https://patentgrep.com/patent/US12763474B2 ## CPC - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 1/243: {with built-in antennas} - H01Q 5/335: at the feed, e.g. for impedance matching - H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna apparatus includes an antenna patch, a feed line, a capacitor, and a ground line. One end of the feed line is connected to the antenna patch. The other end of the feed line is connected to the capacitor in series. One end of the ground line is connected to the antenna patch. The other end of the ground line is configured to connect to the ground plane. The antenna patch and the ground plane remain spaced apart. The antenna patch, the feed line, the capacitor and the ground line are together arranged in a configuration to excite operation modes corresponding to three resonances. ## Claims ### Claim 1 An antenna apparatus, comprising: an antenna patch comprising: a first horizontal radiating metal patch comprising two ends: a first vertical radiating metal patch; and a second vertical radiating metal patch, wherein the first vertical radiating metal patch and the second vertical radiating metal patch are respectively vertically connected to the two ends of the first horizontal radiating metal patch; a capacitor; a feed line, wherein a first end of the feed line is connected to the antenna patch, and wherein a second end of the feed line is connected in series to the capacitor; a feed point connected to the capacitor; and a ground line, wherein a first end of the ground line is connected to the antenna patch, wherein a second end of the ground line is configured to couple with a ground plane, wherein the antenna patch and the ground plane are spaced apart, wherein the first vertical radiating metal patch and the second vertical radiating metal patch extend toward the ground plane, and wherein the antenna patch, the feed line, the capacitor, and the ground line are configured to excite operation modes corresponding to three resonances to encompass a frequency band of 698 megahertz (MHz) to 1500 MHz. ### Claim 2 (depends on 1) The antenna apparatus of claim 1, wherein the first end of the feed line and the first end of the ground line are connected to the first horizontal radiating metal patch, wherein the feed line is disposed between the ground line and the first vertical radiating metal patch, wherein the ground line is connected to a center position of the first horizontal radiating metal patch, and wherein the first vertical radiating metal patch and the second vertical radiating metal patch are symmetrically distributed with respect to a position of the ground line. ### Claim 3 (depends on 1) The antenna apparatus of claim 1, wherein the operation modes corresponding to the three resonances are a first common mode, a differential mode, and a second common mode, wherein in the second common mode a local current is sequentially directed through the feed line, a portion of the first horizontal radiating metal patch that is located between the feed line and the first vertical radiating metal patch, and the first vertical radiating metal patch, and wherein a sum of a length of the feed line, a length of the portion of the first horizontal radiating metal patch that is located between the feed line and the first vertical radiating metal patch, and a length of the first vertical radiating metal patch is ¼ of a resonance wavelength of the second common mode. ### Claim 4 (depends on 1) The antenna apparatus of claim 1, further comprising a dielectric block connected to the ground plane, the antenna patch, the feed line, and the ground line. ### Claim 5 (depends on 4) The antenna apparatus of claim 4, wherein the antenna patch comprises: a second horizontal radiating metal patch; a third vertical radiating metal patch; and a fourth vertical radiating metal patch, wherein the third vertical radiating metal patch and the fourth vertical radiating metal patch are respectively vertically connected to two ends of the second horizontal radiating metal patch, wherein the second horizontal radiating metal patch, the third vertical radiating metal patch, and the fourth vertical radiating metal patch each are attached to a top face of the dielectric block, wherein the feed line and the ground line are each attached to a side face of the dielectric block that is adjacent to the top face, and wherein the first end of the feed line and the first end of the ground line are each connected to the second horizontal radiating metal patch. ### Claim 6 (depends on 5) The antenna apparatus of claim 5, wherein a length of the third vertical radiating metal patch is less than a length of the fourth vertical radiating metal patch. ### Claim 7 (depends on 5) The antenna apparatus of claim 5, wherein the ground line is connected a first distance from a center position of the second horizontal radiating metal patch, wherein the first distance is in a direction toward the third vertical radiating metal patch. ### Claim 8 (depends on 7) The antenna apparatus of claim 7, wherein the first distance is 3 millimeters (mm). ### Claim 9 (depends on 1) The antenna apparatus of claim 1, wherein the feed line and the ground line are spaced apart by a preset second distance. ### Claim 10 (depends on 9) The antenna apparatus of claim 9, wherein the preset second distance ranges from 6.5 millimeters (mm) to 8 mm. ### Claim 11 A terminal device, comprising: an antenna apparatus, comprising: an antenna patch comprising: a first horizontal radiating metal patch comprising two ends: a first vertical radiating metal patch; and a second vertical radiating metal patch, wherein the first vertical radiating metal patch and the second vertical radiating metal patch are respectively vertically connected to the two ends of the first horizontal radiating metal patch; a capacitor; a feed line, wherein a first end of the feed line is connected to the antenna patch, and wherein a second end of the feed line is connected to the capacitor in series; a feed point connected to the capacitor; and a ground line, wherein a first end of the ground line is connected to the antenna patch, wherein a second end of the ground line is configured to couple with a ground plane, wherein the antenna patch and the ground plane are spaced apart, wherein the first vertical radiating metal patch and the second vertical radiating metal patch extend toward the ground plane, and wherein the antenna patch, the feed line, the capacitor, and the ground line are configured to excite operation modes corresponding to three resonances to encompass a frequency band of 698 megahertz (MHz) to 1500 MHz. ### Claim 12 (depends on 11) The terminal device of claim 11, wherein the first end of the feed line and the first end of the ground line are connected to the first horizontal radiating metal patch, and wherein the feed line is disposed between the ground line and the first vertical radiating metal patch. ### Claim 13 (depends on 12) The terminal device of claim 12, wherein the ground line is connected to a center position of the first horizontal radiating metal patch, and wherein the first vertical radiating metal patch and the second vertical radiating metal patch are symmetrically distributed with respect to a position of the ground line. ### Claim 14 (depends on 12) The terminal device of claim 12, wherein the operation modes corresponding to the three resonances are a first common mode, a differential mode, and a second common mode, wherein in the second common mode a local current is sequentially directed through the feed line, a portion of the first horizontal radiating metal patch that is located between the feed line and the first vertical radiating metal patch, and the first vertical radiating metal patch, and wherein a sum of a length of the feed line, a length of the portion of the first horizontal radiating metal patch that is located between the feed line and the first vertical radiating metal patch, and a length of the first vertical radiating metal patch is ¼ of a resonance wavelength of the second common mode. ### Claim 15 (depends on 11) The terminal device of claim 11, further comprising a dielectric block connected to the ground plane, the antenna patch, the feed line, and the ground line. ### Claim 16 (depends on 15) The terminal device of claim 15, wherein the antenna patch comprises: a second horizontal radiating metal patch; a third vertical radiating metal patch; and a fourth vertical radiating metal patch, wherein the third vertical radiating metal patch and the fourth vertical radiating metal patch are respectively vertically connected to two ends of the second horizontal radiating metal patch, wherein the second horizontal radiating metal patch, the third vertical radiating metal patch, and the fourth vertical radiating metal patch each are attached to a top face of the dielectric block, wherein the feed line and the ground line are each attached to a side face of the dielectric block that is adjacent to the top face, and wherein the first end of the feed line and the first end of the ground line are each connected to the second horizontal radiating metal patch. ### Claim 17 (depends on 16) The terminal device of claim 16, wherein a length of the third vertical radiating metal patch is less than a length of the fourth vertical radiating metal patch. ### Claim 18 (depends on 16) The terminal device of claim 16, wherein the ground line is connected a first distance from a center position of the second horizontal radiating metal patch, wherein the first distance is 3 millimeters (mm) in a direction toward the third vertical radiating metal patch. ### Claim 19 (depends on 11) The terminal device of claim 11, wherein the feed line and the ground line are spaced apart by 6.5 millimeters (mm) to 8 mm. ### Claim 20 An antenna apparatus, comprising: an antenna patch; a capacitor; a feed line, wherein a first end of the feed line is connected to the antenna patch, and wherein a second end of the feed line is connected in series to the capacitor; a feed point connected to the capacitor; and a ground line, wherein a first end of the ground line is connected to the antenna patch, wherein a second end of the ground line is configured to couple with a ground plane, wherein the feed line and the ground line are spaced apart by a preset second distance, wherein the preset second distance ranges from 6.5 millimeters (mm) to 8 mm, wherein the antenna patch and the ground plane are spaced apart, and wherein the antenna patch, the feed line, the capacitor, and the ground line are configured to excite operation modes corresponding to three resonances to encompass a frequency band of 698 megahertz (MHz) to 1500 MHz.