# US 12,003,041 B2 · Mobile terminal and antenna control method

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- Number: US 12,003,041 B2
- Document ID: US12003041B2
- Status: Granted
- Kind: B2
- Application number: 17/356,090
- Filed: 2021-06-23
- Published: 2021-10-14
- Granted: 2024-06-04
- Earliest claimed: 2018-12-25
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Yang Liu
- Web page: https://patentgrep.com/patent/US12003041B2

## CPC

- G06F 1/1677: {for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment}
- H01Q 5/35: using two or more simultaneously fed points
- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1698: {the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone (details of antennas disposed inside a computer H01Q1/2266)}
- H01Q 1/243: {with built-in antennas}
- H01Q 3/247: {by switching different parts of a primary active element}
- H01Q 5/307: Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)}
- H04B 1/3838: {Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use}
- H04B 1/401: for selecting or indicating operating mode
- H04M 1/0218: {The hinge comprising input and/or output user interface means}
- H04M 1/0245: {using open/close detection}
- H04M 1/0214: {Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position (combined with translation movement H04M1/0235)}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H04B: TRANSMISSION
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

A mobile terminal includes a first module and a second module. The first module and the second module are in a folded state or an extended state. The first module is provided with a first antenna radiation branch, the first antenna radiation branch is provided with a first feed point and a first ground point, and the first feed point is electrically connected to a first feed source via a switch. The second module is provided with a second antenna radiation branch, and the second antenna radiation branch is provided with a second feed point and a second ground point. In the case where the first module and the second module are in the folded state, the switch is in the off state, and in the case where the first module and the second module are in the extended state, the switch is in the on state.

## Claims

### Claim 1

A mobile terminal, comprising a first module and a second module, wherein the first module and the second module are in a folded state or an unfolded state;
the first module is provided with a first antenna radiation branch, wherein the first antenna radiation branch is provided with a first feed point and a first ground point, and the first feed point is electrically connected to a first feed source via a switch; and the second module is provided with a second antenna radiation branch, wherein the second antenna radiation branch is provided with a second feed point and a second ground point; and
in a case where the first module and the second module are in the folded state, the switch is in the off state, and in a case where the first module and the second module are in the unfolded state, the switch is in the on state.

### Claim 2 (depends on 1)

The mobile terminal according to claim 1, wherein in the case where the first module and the second module are in the folded state, the first antenna radiation branch is in capacitive coupling with the second antenna radiation branch.

### Claim 3 (depends on 2)

The mobile terminal according to claim 2, wherein in the case where the first module and the second module are in the folded state, the first antenna radiation branch is aligned with the second antenna radiation branch.

### Claim 4 (depends on 2)

The mobile terminal according to claim 2, wherein the first antenna radiation branch is further provided with a tuning point, and the tuning point is electrically connected to a tuning circuit.

### Claim 5 (depends on 4)

The mobile terminal according to claim 4, wherein the tuning circuit is a switching circuit or a high-frequency filtering circuit.

### Claim 6 (depends on 1)

The mobile terminal according to claim 1, wherein the second feed point is electrically connected to a second feed source; and the mobile terminal further comprises a combiner and a combination switch, wherein the combiner is electrically connected to the second feed source, and the combiner is electrically connected to the first feed source via the combination switch;
in the case where the first module and the second module are in the unfolded state, and specific absorption rate (SAR) of the mobile terminal is less than or equal to a preset threshold, the combination switch is disconnected from the combiner; and
in the case where the first module and the second module are in the unfolded state, and the SAR of the mobile terminal is greater than the preset threshold, the combination switch is connected to the combiner.

### Claim 7

An antenna control method, applied to a mobile terminal, wherein the mobile terminal comprises a first module and a second module, and the first module and the second module are in a folded state or an unfolded state; the first module is provided with a first antenna radiation branch, the first antenna radiation branch is provided with a first feed point and a first ground point, and the first feed point is electrically connected to a first feed source via a switch; the second module is provided with a second antenna radiation branch, the second antenna radiation branch is provided with a second feed point and a second ground point; and
the method comprises:
controlling the switch to be in the off state in a case where the first module and the second module are in the folded state; and
controlling the switch to be in the on state in a case where the first module and the second module are in the unfolded state.

### Claim 8 (depends on 7)

The method according to claim 7, wherein the second feed point is electrically connected to a second feed source; the mobile terminal further comprises a combiner and a combination switch, the combiner is electrically connected to the second feed source, and the combiner is electrically connected to the first feed source via the combination switch; and
the method further comprises:
controlling the combination switch to be disconnected from the combiner in the case where the first module and the second module are in the unfolded state, and specific absorption rate (SAR) of the mobile terminal is less than or equal to a preset threshold; and
controlling the combination switch to be connected to the combiner in the case where the first module and the second module are in the unfolded state, and the SAR of the mobile terminal is greater than the preset threshold.

### Claim 9 (depends on 7)

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when a processor executes the computer program, the steps of the antenna control method according to claim 7 are implemented.

### Claim 10

A mobile terminal, comprising a processor, a memory, and a computer program that is stored in the memory and executable on the processor, wherein the mobile terminal comprises a first module and a second module, and the first module and the second module are in a folded state or an unfolded state; the first module is provided with a first antenna radiation branch, the first antenna radiation branch is provided with a first feed point and a first ground point, and the first feed point is electrically connected to a first feed source via a switch; the second module is provided with a second antenna radiation branch, the second antenna radiation branch is provided with a second feed point and a second ground point; and
the computer program, when executed on the processor, causes the processor to perform:
controlling the switch to be in the off state in a case where the first module and the second module are in the folded state; and
controlling the switch to be in the on state in a case where the first module and the second module are in the unfolded state.

### Claim 11 (depends on 10)

The mobile terminal according to claim 10, wherein the second feed point is electrically connected to a second feed source; the mobile terminal further comprises a combiner and a combination switch, the combiner is electrically connected to the second feed source, and the combiner is electrically connected to the first feed source via the combination switch; and
the computer program, when executed on the processor, causes the processor to further perform:
controlling the combination switch to be disconnected from the combiner in the case where the first module and the second module are in the unfolded state, and specific absorption rate (SAR) of the mobile terminal is less than or equal to a preset threshold; and
controlling the combination switch to be connected to the combiner in the case where the first module and the second module are in the unfolded state, and the SAR of the mobile terminal is greater than the preset threshold.