# US 2014/0152405 A1 · Coupler structure of mobile terminal and mobile terminal including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152405 A1 - Document ID: US20140152405A1 - Status: Published application - Kind: A1 - Application number: 14/096,687 - Filed: 2013-12-04 - Published: 2014-06-05 - Earliest claimed: 2012-12-05 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Jae-Young HUH; Kyu-Sub KWAK; Dong-Churl KIM; In-Kuk YUN; Jea-Hyuck LEE - Web page: https://patentgrep.com/patent/US20140152405A1 ## CPC - H04B 5/266: {One coil at each side, e.g. with primary and secondary coils} - H04B: TRANSMISSION ## Abstract A coupler structure of a mobile terminal having a repeater applied thereto is provided. The coupler structure includes a first substrate having a reception coupler, a second substrate having a transmission coupler, and a repeater disposed between the first substrate and the second substrate. ## Claims ### Claim 1 A coupler structure of a mobile terminal, the coupler structure comprising: a first substrate having a reception coupler formed thereon; a second substrate having a transmission coupler formed thereon; and a repeater disposed between the first substrate and the second substrate. ### Claim 2 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein the repeater has a first repeater coupler formed at a side of the repeater opposite to the first substrate and a second repeater coupler formed at a side of the repeater opposite to the second substrate. ### Claim 3 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein the repeater is spaced at a predetermined distance from the first and second substrates. ### Claim 4 (depends on 2) The coupler structure of the mobile terminal as claimed in claim 2, wherein an inductance of the first repeater coupler is larger than an inductance of the reception coupler and an inductance of the second repeater coupler is larger than an inductance of the transmission coupler. ### Claim 5 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein mutual inductance between the transmission coupler and the reception coupler has a value larger than a critical value as a coupling constant increases. ### Claim 6 (depends on 5) The coupler structure of the mobile terminal as claimed in claim 5, wherein the coupling constant increases as a size of the transmission coupler and the reception coupler increases. ### Claim 7 (depends on 5) The coupler structure of the mobile terminal as claimed in claim 5, wherein the coupling constant increases as distance between the first substrate and the second substrate decreases. ### Claim 8 (depends on 5) The coupler structure of the mobile terminal as claimed in claim 5, wherein the critical value is a minimum electric power to restore a signal received through the reception coupler. ### Claim 9 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein the transmission coupler and the reception coupler form a structure in which Self-Resonance Frequency (SRF) increases as inductance decreases. ### Claim 10 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein a thickness of the repeater varies depending on a distance between the transmission coupler and the reception coupler. ### Claim 11 (depends on 1) The coupler structure of the mobile terminal as claimed in claim 1, wherein the repeater transmits at least one of data signals and electric power, which are received from the transmission coupler, to the reception coupler. ### Claim 12 (depends on 5) The coupler structure of the mobile terminal as claimed in claim 5, wherein the mutual inductance (M) is: M=k·√{square root over (LTx·LRx)}, wherein LTx is inductance of the transmission coupler, LRx is inductance of the reception coupler, and k is a coupling constant. ### Claim 13 (depends on 9) The coupler structure of the mobile terminal as claimed in claim 9, wherein the Self-Resonance Frequency is: SRF=1/√{square root over (L·C)}, wherein L is inductance of the coupler and C is parasitic capacitance of the coupler. ### Claim 14 A coupler structure of a mobile terminal, the coupler structure comprising: a first substrate; a second substrate; and a repeater disposed between the first substrate and the second substrate, with a coupler arranged thereon, wherein the repeater has adhesive films attached to upper and lower surfaces thereof, and includes at least one magnetic shield material and at least one flexible substrate. ### Claim 15 (depends on 14) The coupler structure of the mobile terminal as claimed in claim 14, wherein the repeater has a first repeater coupler formed at a side of the repeater opposite to the first substrate and a second repeater coupler formed at a side of the repeater opposite to the second substrate. ### Claim 16 (depends on 14) The coupler structure of the mobile terminal as claimed in claim 14, further comprising: a reception coupler provided on the first substrate; and a transmission coupler provided on the second substrate, wherein mutual inductance between the reception coupler and the transmission coupler increases above a critical value when a coupling constant increases. ### Claim 17 (depends on 15) The coupler structure of the mobile terminal as claimed in claim 15, wherein each coupler formed on the repeater has an inductance larger than an inductance value of a coupler formed on a corresponding first substrate or second substrate. ### Claim 18 (depends on 14) The coupler structure of the mobile terminal as claimed in claim 14, wherein the at least one flexible substrate includes a plurality of flexible substrates arranged on upper and lower surfaces of the magnetic shield material, respectively. ### Claim 19 (depends on 14) The coupler structure of the mobile terminal as claimed in claim 14, wherein a first flexible substrate is arranged beneath the adhesive film disposed on the upper surface of the repeater, and a second flexible substrate is arranged on the adhesive film disposed on the lower surface of the repeater. ### Claim 20 (depends on 19) The coupler structure of the mobile terminal as claimed in claim 19, wherein a first magnetic shield material is formed beneath the first flexible substrate, and a second magnetic shield material is formed on the second flexible substrate. ### Claim 21 (depends on 20) The coupler structure of the mobile terminal as claimed in claim 20, wherein the first flexible substrate and the first magnetic shield material, the first magnetic shield material and the second magnetic shield material, and the second magnetic shield material and the second flexible substrate are spaced at a predetermined distance from each other. ### Claim 22 (depends on 16) The coupler structure of the mobile terminal as claimed in claim 16, wherein the critical value is a minimum electric power to restore a received signal. ### Claim 23 A mobile terminal comprising: a coupler structure that includes a first substrate, a second substrate; and a repeater disposed between the first substrate and the second substrate, wherein the repeater includes adhesive films attached to upper and lower surfaces thereof, and includes at least one magnetic shield material and at least one flexible substrate.