# US 12,763,468 B2 · Electronic apparatus comprising antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,763,468 B2 - Document ID: US12763468B2 - Status: Granted - Kind: B2 - Application number: 18/788,993 - Filed: 2024-07-30 - Published: 2025-01-23 - Granted: 2026-10-13 - Earliest claimed: 2023-07-20 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Jiho Kim; Junwoo Kim; Kyungjae Lee; Sungjun Lee; Jungmin Cho; Soonho Hwang - Web page: https://patentgrep.com/patent/US12763468B2 ## CPC - H01Q 5/378: Combination of fed elements with parasitic elements - H01Q 5/50: Feeding or matching arrangements for broad-band or multi-band operation - H04M 1/0216: {Foldable in one direction, i.e. using a one degree of freedom hinge} - H01Q 1/241: {used in mobile communications, e.g. GSM (H01Q1/247, H01Q1/248 take precedence)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract An electronic device includes: a first housing; a second housing; a hinge structure coupled with the first and second housings so that the first and second housings are foldable relative to each other; and a wireless communication circuit on the second housing, wherein the second housing includes: a sixth side portion; a fifth side portion facing the sixth side portion; a fourth side portion facing the hinge structure; a third corner portion between the sixth side portion and the fourth side portion; a fourth corner portion between the fifth side portion and the fourth side portion; and a first matching circuit coupled with the sixth side portion and configured to induce a second surface current having a second phase opposite to a first phase of a first surface current induced on the first and second housings and the hinge structure based on the electronic device being in a folded state. ## Claims ### Claim 1 An electronic device comprising: a first housing; a second housing comprising a second support member; a hinge structure coupled with the first housing and the second housing so that the first housing and the second housing are foldable relative to each other using the hinge structure as a central axis; and a wireless communication circuit provided on the second support member of the second housing, wherein the second housing further comprises: a sixth side portion provided at a side of the second housing, and comprising a first conductive portion; a fifth side portion facing the sixth side portion and comprising a second conductive portion; a fourth side portion facing the hinge structure and comprising a third conductive portion; a third corner portion between the sixth side portion and the fourth side portion and comprising a fourth conductive portion; a fourth corner portion between the fifth side portion and the fourth side portion and comprising a fifth conductive portion; and a first matching circuit on the second support member, and comprising a second switch and at least one first inductor, and wherein the first matching circuit is configured to: turn on the second switch, to electrically couple between the second support member and the sixth side portion through the at least one first inductor, based on the electronic device being in a folded state; and turn off the second switch, to electrically decouple between the second support member and the sixth side portion, based on the electronic device being in an unfolded state. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein a second surface current is induced in case that the second switch is turned on, the second surface current having a second phase opposite to a first phase of a first surface current induced on the first housing, the second housing, and the hinge structure, and wherein a second parasitic resonance formed by the second surface current is configured to shift a frequency band of a first parasitic resonance induced by the first surface current. ### Claim 3 (depends on 1) The electronic device of claim 1, further comprising: a first ground member configured to electrically ground the fourth side portion to the second support member. ### Claim 4 (depends on 1) The electronic device of claim 1, further comprising: a first connecting portion configured to electrically couple with the fourth side portion and the third corner portion. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the first connecting portion comprises a first switch on the second support member. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the first connecting portion is configured to: turn on the first switch based on the electronic device being in the folded state; and turned off the first switch based on the electronic device not being in the folded state. ### Claim 7 (depends on 4) The electronic device of claim 4, wherein the fourth side portion is configured to: receive, from the wireless communication circuit, an electrical signal; and operate as a radiator along with the third corner portion. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein a first end of the first matching circuit is electrically coupled with a first point of the second support member, and wherein a second end of the first matching circuit is electrically coupled with a first point of the sixth side portion. ### Claim 9 (depends on 7) The electronic device of claim 7, wherein a frequency of a second parasitic resonance has an electrical length from one end to another end of the sixth side portion in the first matching circuit. ### Claim 10 An electronic device comprising: a first housing; a second housing comprising a second support member; a hinge structure coupled with the first housing and the second housing so that the first housing and the second housing are foldable relative to each other using the hinge structure as a central axis; and a wireless communication circuit provided on the second support member of the second housing, wherein the second housing further comprises: a sixth side portion provided at a side of the second housing, and comprising a first conductive portion; a fifth side portion facing the sixth side portion and comprising a second conductive portion; a fourth side portion facing the hinge structure and comprising a third conductive portion; a third corner portion between the sixth side portion and the fourth side portion and comprising a fourth conductive portion; a fourth corner portion between the fifth side portion and the fourth side portion and comprising a fifth conductive portion; and a first matching circuit on the second support member, and comprising a second switch and at least one first inductor, wherein the first matching circuit is configured to: turn on the second switch, to electrically couple between the second support member and the sixth side portion through the at least one first inductor, based on the electronic device being in a folded state; and turn off the second switch, to electrically decouple between the second support member and the sixth side portion, based on the electronic device being in an unfolded state. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein a second surface current is induced in case that the second switch is turned on, the second surface current having a second phase opposite to a first phase of a first surface current induced on the first housing, the second housing, and the hinge structure, and wherein a second parasitic resonance formed by the second surface current is configured to shift a frequency band of a first parasitic resonance induced by the first surface current. ### Claim 12 (depends on 10) The electronic device of claim 10, further comprising: a first ground member configured to electrically ground the fourth side portion to the second support member. ### Claim 13 (depends on 10) The electronic device of claim 10, further comprising: a first connecting portion configured to electrically couple with the fourth side portion and the third corner portion. ### Claim 14 (depends on 13) The electronic device of claim 13, wherein the first connecting portion comprises a first switch on the second support member. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the first connecting portion is configured to: turn on the first switch based on the electronic device being in the folded state; and turn off the first switch based on the electronic device not being in the folded state. ### Claim 16 (depends on 13) The electronic device of claim 13, wherein the fourth side portion is configured to: receive, from the wireless communication circuit, an electrical signal; and operate as a radiator along with the third corner portion. ### Claim 17 (depends on 10) The electronic device of claim 10, wherein a first end of the first matching circuit is electrically coupled with a second point of the sixth side portion, and wherein a second end of the first matching circuit is electrically coupled with a second point of the third corner portion.