CN217768751U

CN217768751U - Folding electronic device

Info

Publication number: CN217768751U
Application number: CN202222101973.7U
Authority: CN
Inventors: 穆梦甜
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-11-08
Anticipated expiration: 2032-08-10

Abstract

The present disclosure relates to a folding electronic device, including a first body, a second body, and a rotating shaft, the first body and the second body being rotatably connected by the rotating shaft so that the folding electronic device has a folded state; the first body comprises a first middle frame, a first radiator and a second radiator, the first radiator and the second radiator are arranged at intervals and are respectively connected to the first middle frame, the working frequency band of the first radiator at least covers a first frequency band, and the working frequency band of the second radiator at least covers a second frequency band; the second main body comprises a second middle frame, a first branch knot, a second branch knot and a tuning circuit, the first branch knot is connected to the second middle frame, the second branch knot and the second middle frame are arranged at intervals, a first tuning port is arranged on the second branch knot, the second branch knot can be electrically connected to the tuning circuit through the first tuning port, and the tuning circuit is used for at least adjusting the phase of induction current which is generated on the second branch knot and is located in a first frequency band and a second frequency band.

Description

Folding electronic device

Technical Field

The present disclosure relates to the field of communications electronics, and in particular, to a foldable electronic device.

Background

With the development and popularization of foldable electronic devices (such as foldable mobile phones and foldable wearable devices), the foldable electronic devices have an expanding market demand by virtue of the advantages of being foldable and portable. Because the foldable electronic device has the characteristic of a folded state, the communication function of the foldable electronic device is affected by the folded state, and the problem of low communication efficiency of the foldable electronic device in the folded state is caused.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a foldable electronic device to solve technical problems in the related art.

In order to achieve the above object, the present disclosure provides a folding electronic apparatus including a first body, a second body, and a rotation shaft, the first body and the second body being rotatably connected by the rotation shaft so that the folding electronic apparatus has a folded state;

the first body comprises a first middle frame, a first radiator and a second radiator, the first radiator and the second radiator are arranged at intervals and are respectively connected to the first middle frame, the working frequency band of the first radiator at least covers a first frequency band, and the working frequency band of the second radiator at least covers a second frequency band;

the second main body comprises a second middle frame, a first branch knot, a second branch knot and a tuning circuit, the first branch knot is connected to the second middle frame, the second branch knot and the second middle frame are arranged at intervals, a first tuning port is arranged on the second branch knot, the second branch knot can be electrically connected to the tuning circuit through the first tuning port, and the tuning circuit is used for at least adjusting the phases of induction currents which are generated on the second branch knot and located in the first frequency band and the second frequency band.

Optionally, the first frequency band and the second frequency band do not overlap with each other, the tuning circuit includes a parallel resonant circuit, and a resonant frequency of the parallel resonant circuit is between the first frequency band and the second frequency band.

Optionally, the operating frequency band of the first radiator at least covers a Sub-6G frequency band, the operating frequency band of the second radiator at least covers a wifi2.4G frequency band, and the resonant frequency of the parallel resonant circuit is between 3GHz and 4.2 GHz.

Optionally, the second radiator includes a main body portion and a ground rib, and the main body portion is connected to the first middle frame through the ground rib;

the foldable electronic device is configured to, in the folded state, the first radiator and the first branch are arranged at intervals in a first direction, the first radiator and the first branch are completely overlapped in the projection in the first direction, the main body of the second radiator and the second branch are arranged at intervals in the first direction, and the main body and the second branch are completely overlapped in the projection in the first direction.

Optionally, the second body includes a printed wiring board disposed on the second middle frame, and the tuning circuit is disposed on the printed wiring board.

Optionally, the second body includes a connector, and the first tuning port of the second stub is connected to the printed circuit board through the connector;

the foldable electronic device is configured such that, in the folded state, the grounding rib and the connector of the second radiator are disposed at an interval in the first direction, and projections of the grounding rib and the connector in the first direction at least partially overlap.

Optionally, a feed port is disposed on the first radiator, a second tuning port is disposed on the first branch, and the first branch is connected to the tuning device through the second tuning port;

the foldable electronic device is configured such that, in the folded state, the feed port of the first radiator and the second tuning port of the first branch are disposed at an interval in the first direction, and projections of the feed port and the second tuning port in the first direction at least partially coincide.

Optionally, the working frequency band of the first radiator includes an MHB frequency band and a Sub-6G frequency band, and the working frequency band of the second radiator includes a GPS _ L1 frequency band, a Wifi _2.4G frequency band, and a Wifi _5G frequency band.

Optionally, the first main body further includes a third radiator connected to the first middle frame, the second main body further includes a third branch, and the third branch and the second middle frame are arranged at intervals;

in the folded state, the third radiator and the third branch are arranged at intervals in a first direction, and the projection of the third radiator and the projection of the third branch in the first direction at least partially coincide.

Optionally, an operating frequency band of the third radiator is a GPS _ L5 frequency band

In the foldable electronic device, the first radiator and the second radiator in the first body can be used for radiating or receiving signals, the first branch and the second branch in the second body correspond to the first radiator and the second radiator respectively, when the foldable electronic device is in a folded state, the first radiator can be coupled with the first branch to generate radiation, the second radiator can be coupled with the second branch to generate radiation, the signals generated by the first radiator and/or the second radiator are prevented from being shielded and interfered by the second body, and the foldable electronic device can have good radiation efficiency when being in the folded state.

When the first radiator emits electromagnetic waves within the first frequency band or the second radiator radiates electromagnetic waves, the second branch can be connected with the tuning circuit through the first tuning port, and the tuning circuit can play a role in adjusting the phase of the induced current, so that the phase of the electromagnetic waves generated by the induced current and the phase of the electromagnetic waves on the first radiator or the second radiator are close to each other, the electromagnetic waves are prevented from generating efficiency depression, and the folding electronic equipment is guaranteed to have good radiation efficiency and communication effect.

When the first radiator or the second radiator emits electromagnetic waves of other frequency bands outside the first frequency band and the second frequency band, the second branch and the second middle frame are arranged at intervals, and the connection relation of the second branch and the tuning circuit through the first tuning port is removed, so that the second branch is not connected to any grounding point, the second branch is not prone to generating induction current under the action of the electromagnetic waves, the influence of the induction current generated on the second branch on the radiation efficiency of the first radiator or the second radiator can be avoided, the phenomenon that the electromagnetic waves are sunken in generation efficiency is avoided, and the foldable electronic device can have good radiation efficiency and communication effect.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a foldable electronic device provided in an exemplary embodiment of the present disclosure, where the foldable electronic device is in an unfolded state;

fig. 2 is a schematic structural diagram of a parallel tuning circuit of a folding electronic device according to an exemplary embodiment of the present disclosure;

fig. 3 is a graph of relation between Radiation Efficiency (System Radiation Efficiency in dB) and Frequency (Frequency/Ghz) obtained in a simulation test of a foldable electronic device according to an exemplary embodiment of the present disclosure, where a solid line curve is a graph of relation between Radiation Efficiency and Frequency obtained in a simulation test of an exemplary embodiment of the present disclosure, a dotted line shows a graph of relation between Radiation Efficiency and Frequency obtained in a simulation test of a related art, and a gray shaded frame shows an N78 Frequency band and an N79 Frequency band.

Description of the reference numerals

1-a first body; 10-a first middle frame; 11-a first radiator; 111-a feed port; 12-a second radiator; 121-a body portion; 122-ground ribs; 13-a third radiator; 2-a second body; 20-a second middle frame; 21-a first branch; 211-a second tuning port; 22-second branch; 221-a first tuning port; 23-third branch; 24-a printed wiring board; 25-a connector; 3-a rotating shaft; 4-parallel resonant circuit.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" refers to the inner and outer of the profile of the relevant component, unless stated to the contrary. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another element, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

Common folding electronic devices in the related art include a folding mobile phone, a folding tablet computer, a folding wearable device, and the like, and taking the folding mobile phone as an example, the folding mobile phone generally includes a main screen structure, an auxiliary screen structure, and a rotating shaft, and the main screen structure is rotatably connected to the auxiliary screen structure through the rotating shaft, so that the folding mobile phone has a tiled state and a folded state. In the flat state, the main screen structure and the auxiliary screen structure are approximately in the same plane, and in the folded state, the main screen structure is arranged close to the auxiliary screen structure after being turned over. An antenna for communication is generally arranged in a main screen structure of the folding mobile phone, and when the main screen structure and an auxiliary screen structure are close to each other, the auxiliary screen structure can shield and interfere signals of the antenna. In order to solve this problem, a conductive part corresponding to the antenna is usually disposed in the sub-screen structure of the folding mobile phone in the related art, and the antenna is close to the conductive part and can be coupled with the conductive part to generate radiation in the folding state, so as to ensure the signal radiation efficiency of the folding mobile phone in the folding state.

When the folding mobile phone is in a folded state, because the conductor in the auxiliary screen structure and the antenna in the main screen structure correspond to each other and are close to each other, electromagnetic waves emitted by the antenna may cause induced currents to be generated on the conductor in the auxiliary screen structure, the induced currents on the conductor may also generate electromagnetic waves, and when the phase difference between the electromagnetic waves generated by the induced currents on the auxiliary screen structure and the electromagnetic waves emitted by the antenna is close to 180 degrees, signals radiated by the antenna outwards will generate efficiency depression, so that the radiation efficiency of the antenna is reduced, and the communication effect of the folding mobile phone is affected. Especially in the application scene that the folding mobile phone has two or more antennas for transmitting different frequency bands, the auxiliary screen structure is provided with two or more conductors corresponding to the antennas, and different conductors have the possibility of generating induced current, so that the folding mobile phone generates interference and distortion when using certain antennas to generate signals in certain frequency bands, thereby affecting the communication quality and reducing the communication efficiency.

In view of the above, as shown in fig. 1, the present disclosure provides a folding electronic device, which includes a first body 1, a second body 2, and a rotating shaft 3, wherein the first body 1 and the second body 2 are rotatably connected by the rotating shaft 3 so that the folding electronic device has a folded state, the first body 1 includes a first middle frame 10, a first radiator 11, and a second radiator 12, the first radiator 11 and the second radiator 12 are disposed at a distance from each other and are respectively connected to the first middle frame 10, the second body 2 includes a second middle frame 20, a first branch 21, a second branch 22, and a tuning circuit, the first branch 21 is connected to the second middle frame 20, the second branch 22 is disposed at a distance from the second middle frame 20, the second branch 22 is provided with a first tuning port 221, the second branch 22 can be electrically connected to the tuning circuit through the first tuning port 221, and the tuning circuit is used for adjusting phases of induction currents generated at least on the second branch 22 and located in a first frequency band and a second frequency band.

Fig. 1 illustrates a folding electronic device provided in an exemplary embodiment of the present disclosure, wherein the folding electronic device is in a flat unfolded state so as to illustrate the composition of a first body 1 and a second body 2 of the folding electronic device.

In the foldable electronic device, both the first radiator 11 and the second radiator 12 in the first body 1 can be used for radiating or receiving signals, the first branch 21 and the second branch 22 in the second body 2 correspond to the first radiator 11 and the second radiator 12, respectively, when the foldable electronic device is in a folded state, the first radiator 11 can be coupled with the first branch 21 to generate radiation, and the second radiator 12 can be coupled with the second branch 22 to generate radiation, so that the signals generated by the first radiator 11 and/or the second radiator 12 are prevented from being shielded and interfered by the second body 2, and the foldable electronic device can have good radiation efficiency when being in the folded state.

When the first radiator 11 emits electromagnetic waves within the first frequency band or the second radiator 12 radiates electromagnetic waves, the second branch 22 can be connected to the tuning circuit through the first tuning port 221, and the tuning circuit can adjust the phase of the induced current, so that the phase of the electromagnetic waves generated by the induced current and the phase of the electromagnetic waves on the first radiator 11 or the second radiator 12 are close to each other, and the electromagnetic waves are prevented from generating efficiency depression, thereby ensuring that the foldable electronic device can have good radiation efficiency and communication effect.

When the first radiator 11 or the second radiator 12 emits electromagnetic waves in other frequency bands outside the first frequency band and the second frequency band, because the second branch 22 and the second middle frame 20 are arranged at intervals, the second branch 22 is not connected to any grounding point by removing the connection relationship between the first tuning port 221 and the tuning circuit and the second branch 22 is not easy to generate induced current under the action of the electromagnetic waves, so that the influence of the induced current generated on the second branch 22 on the radiation efficiency of the first radiator 11 or the second radiator 12 can be avoided, the depression of the generation efficiency of the electromagnetic waves can be avoided, and the folding electronic device can have good radiation efficiency and communication effect.

The folding electronic device can be a folding mobile phone, a folding tablet computer, a folding earphone, folding VR glasses or a helmet, and the like, and the application scene of the folding electronic device is not particularly limited by the disclosure. As an exemplary application scenario, the foldable electronic device may be a foldable mobile phone, and the first radiator 11 and the second radiator 12 may be communication antennas in the foldable mobile phone for radiating or receiving communication signals.

In order to tune the induced current generated on the first branch 21, optionally, the first radiator 11 may also be provided with a feeding port 111, the first branch 21 is provided with a second tuning port 211, the first branch 21 is connected to the tuning device through the second tuning port 211, and the foldable electronic device may be configured such that, in the folded state, the feeding port 111 of the first radiator 11 and the second tuning port 211 of the first branch 21 are disposed at an interval in the first direction, and projections of the feeding port 111 and the second tuning port 211 in the first direction at least partially overlap. The tuning device may be a capacitor device or an inductor device, and the first branch 21 may be connected to one or more tuning devices through the second tuning port 211, which is not specifically limited in this disclosure. As an exemplary embodiment, the tuning device connected to the second tuning port 211 of the first branch 21 may tune a phase of the induced current in the first frequency band and/or the second frequency band, so as to avoid the induced current of the first branch 21 from affecting the radiation efficiency of the first radiator 11 and/or the second radiator 12 in the first frequency band and/or the second frequency band.

The working frequency band of the first radiator 11 and the working frequency band of the second radiator 12 may not overlap each other, or the first radiator 11 and the second radiator 12 may also be a combined antenna, that is, the working frequency band of the first radiator 11 may include the first frequency band and other frequency bands that do not overlap with the first frequency band, or the working frequency band of the second radiator 12 may also include frequency bands that do not overlap with the second frequency band, which is not specifically limited by the present disclosure. As an exemplary embodiment, the working frequency band of the first radiator 11 may include an MHB frequency band and a Sub-6G frequency band, and the working frequency band of the second radiator 12 may include a GPS _ L1 frequency band, a Wifi _2.4G frequency band, and a Wifi _5G frequency band, and the foldable electronic device in this embodiment can implement communication in multiple frequency bands, so as to be suitable for different application scenarios and meet the requirement of a user for efficient broadband communication.

In order to adjust the phases of the induced currents in the first frequency band and the second frequency band, as an exemplary embodiment, the second body 2 may be provided with at least two independent tuning circuits, and the second branch 22 may be selectively connected to the two tuning circuits through a selection switch, respectively, so as to adjust the induced currents corresponding to the first frequency band and the second frequency band, respectively.

As another exemplary embodiment, the tuning circuit may include a parallel resonance circuit 4, an operating frequency band of the parallel resonance circuit 4 covers at least a first frequency band and a second frequency band, and a resonance frequency of the parallel resonance circuit 4 is between the first frequency band and the second frequency band.

The parallel resonant circuit 4 can tune the induced currents in both the first frequency band and the second frequency band. Since the resonant frequency of the parallel resonant circuit 4 is between the first frequency band and the second frequency band, one of the capacitive branch and the inductive branch of the parallel resonant circuit 4 can tune the induced current in the first frequency band, and the other can tune the induced current in the second frequency band. Moreover, due to the resonance characteristic of the parallel resonant circuit 4 itself, when the induced current generated on the second branch 22 is within the first frequency band or the second frequency band, the parallel resonant circuit 4 can automatically perform a tuning function without actively selecting a capacitive branch or an inductive branch. Compared with the embodiment that the second branch 22 is connected with two independent tuning circuits, no selection switch is needed to be arranged between the capacitance branch and the inductance branch of the parallel resonance circuit 4 and the second branch 22, so that the complexity of the circuit is effectively reduced, and the simple and efficient tuning effect is realized.

As an exemplary application scenario, the first frequency band may be an N79 frequency band (with a frequency range of 4.4GHz to 5.0 GHz), the second frequency band may be a wifi2.4g frequency band (with a frequency range of 2.400GHz to 2.4835 GHz), and a resonant frequency of the parallel resonant circuit 4 is between the N79 frequency band and the wifi2.4g frequency band, that is, a resonant frequency of the parallel resonant circuit 4 may be between 2.4835GHz to 4.4GHz, that is, frequencies of induced currents excited by electromagnetic waves in the N79 frequency band or the wifi2.4g frequency band may be adjusted respectively.

As another exemplary application scenario, the operating frequency band of the first radiator 11 may at least cover a Sub-6G frequency band (the frequency range is 450MHz-6000 MHz), the operating frequency band of the second radiator 12 at least covers a wifi2.4G frequency band, and the resonant frequency of the parallel resonant circuit 4 may be between 3GHz-4.2 GHz. The parallel resonant circuit 4 can be used to tune at least partially part of the high-frequency band of the Sub-6G band (for example the N79 band) and the wifi2.4g band. At the same time, the parallel resonant circuit 4 can also be used to tune different ones of the Sub-6G frequency bands that are within the operating frequency band of the parallel resonant circuit 4, respectively.

In the above embodiment, as an exemplary application scenario, the Sub-6G frequency band includes an N78 frequency band (i.e., a frequency range of 3.3GHz-3.8 GHz) and an N79 frequency band, and the resonance frequency of the parallel resonant circuit 4 may be around 4 GHz. When the first radiator 11 radiates electromagnetic waves within the N78 frequency band (i.e., the frequency range is 3.3GHz-3.8 GHz) to cause the second branch 22 to generate induced currents, the capacitive branch in the parallel resonant circuit 4 can tune the induced currents, so that the phase of the electromagnetic waves excited by the induced currents can be close to the phase of the electromagnetic waves radiated by the first radiator 11, thereby ensuring the radiation efficiency. Similarly, when the first radiator 11 radiates electromagnetic waves within the N79 frequency band, so that the second stub 22 generates an induced current, the inductive branch in the parallel resonant circuit 4 can tune the induced current. Therefore, the parallel resonant circuit 4 can tune at least induced currents excited by electromagnetic waves of three different frequency bands.

Fig. 3 shows a radiation efficiency-frequency relationship graph obtained in a simulation test according to an exemplary embodiment of the present disclosure, where a gray shaded box shows an N78 frequency band and an N79 frequency band, a solid line curve in fig. 3 shows a radiation efficiency-frequency relationship graph obtained in a simulation test according to an exemplary embodiment of the present disclosure, and a dotted line shows a radiation efficiency-frequency relationship graph obtained in a simulation test according to a related art solution. As shown in fig. 3, the radiation efficiency of the folding electronic device provided by the present disclosure in the N78 frequency band is at least partially higher than that of the related art in the N78 frequency band, and the radiation efficiency of the folding electronic device provided by the present disclosure in the N79 frequency band is higher than that of the related art in the N79 frequency band.

Alternatively, the foldable electronic device may be configured such that when the foldable electronic device is folded, the first radiator 11 and the first branch 21 are spaced in the first direction, and the projections of the first radiator 11 and the first branch 21 in the first direction completely coincide, that is, the first radiator 11 and the first branch 21 are configured to have structures with the same size in the second direction perpendicular to the first direction, so as to ensure that the first radiator 11 and the first branch 21 can be effectively coupled when radiating.

Alternatively, the second radiator 12 may include a main body 121 and a grounding rib 122, the main body 121 is connected to the first middle frame 10 through the grounding rib 122, and the foldable electronic device may be configured such that, in a folded state, the main body 121 and the second branch 22 of the second radiator 12 are disposed at an interval in the first direction, and projections of the main body 121 and the second branch 22 in the first direction completely overlap, that is, the main body 121 and the second branch 22 are configured to have a structure with the same size in a second direction perpendicular to the first direction, so that the first radiator 11 and the first branch 21 can be effectively coupled.

Alternatively, the second body 2 may include a printed wiring board 24 provided on the second middle frame 20, and the tuning circuit is provided on the printed wiring board 24. Here, the tuning circuit is provided on the printed wiring board 24 means that a tuning element (for example, a capacitive element and/or an inductive element) is provided on the printed wiring board 24, and the tuning circuit is configured by a printed circuit on the printed wiring board 24.

In the above embodiment, the second branch 22 is connected to a tuning circuit, i.e. the second branch 22 is connected to a printed circuit on the printed wiring board 24. Alternatively, the second body 2 includes a connector 25, the first tuning port 221 of the second branch 22 can be connected to the tuning circuit on the printed circuit board 24 through the connector 25, and the foldable electronic device is configured such that, in the folded state, the grounding rib 122 of the second radiator 12 and the connector 25 are disposed at an interval in the first direction, and projections of the grounding rib 122 and the connector 25 in the first direction at least partially coincide.

Optionally, the first body 1 may further include a third radiator 13 connected to the first middle frame 10, the second body 2 further includes a third branch 23, the third branch 23 and the second middle frame 20 are disposed at an interval, in the folded state, the third radiator 13 and the third branch 23 are disposed at an interval in the first direction, and projections of the third radiator 13 and the third branch 23 in the first direction at least partially overlap.

In the above embodiment, the third radiator 13 can couple with the third branch 23 to generate radiation, so that the third radiator 13 has good radiation efficiency when the foldable electronic device is in the folded state. Optionally, the operating frequency band of the third radiator 13 may be a GPS _ L5 frequency band, so that the foldable electronic device has a characteristic of broadband radiation.

As an exemplary embodiment, the first radiator 11, the second radiator 12, and the third radiator 13 may be sequentially disposed at intervals along a second direction perpendicular to the first direction, the first radiator 11 is close to the second body, and the third radiator 13 is far from the second body. The first branch knot 21, the second branch knot 22 and the third branch knot 23 can be arranged at intervals along the second direction, the first branch knot 21 is close to the first body, and the third branch knot 23 is far away from the first body. In the application scenario where the foldable electronic device is a foldable mobile phone, the first radiator 11, the second radiator 12, and the third radiator 13 may be sequentially disposed on a top frame portion or a bottom frame portion of a main screen structure of the foldable mobile phone, and the first branch 21, the second branch 22, and the third branch 23 may be sequentially disposed on a top frame portion or a bottom frame portion of a sub-screen structure of the foldable mobile phone.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A folding electronic apparatus comprising a first body, a second body, and a rotating shaft, wherein the first body and the second body are rotatably connected by the rotating shaft so that the folding electronic apparatus has a folded state;

2. The folding electronic device of claim 1, wherein the first frequency band and the second frequency band do not overlap, and wherein the tuning circuit comprises a parallel resonant circuit having a resonant frequency between the first frequency band and the second frequency band.

3. The foldable electronic device of claim 2, wherein the operating band of the first radiator covers at least Sub-6G band, the operating band of the second radiator covers at least wifi2.4G band, and the resonant frequency of the parallel resonant circuit is between 3GHz-4.2 GHz.

4. The folding electronic device according to any one of claims 1 to 3, wherein the second radiator includes a body portion and a ground rib, the body portion being connected to the first middle frame through the ground rib;

5. The folding electronic device according to claim 4, wherein the second body includes a printed wiring board provided on the second middle frame, the tuning circuit being provided on the printed wiring board.

6. The folding electronic device of claim 5, wherein the second body includes a connector through which the first tuning port of the second stub is connected to the printed wiring board;

7. The folding electronic device according to claim 4, wherein the first radiator is provided with a feed port, the first stub is provided with a second tuning port, and the first stub is connected to a tuning element through the second tuning port;

the foldable electronic device is configured such that, in the folded state, the feed port of the first radiator and the second tuning port of the first stub are disposed at an interval in the first direction, and projections of the feed port and the second tuning port in the first direction at least partially coincide.

8. The foldable electronic device of any of claims 1-3, wherein the operating frequency bands of the first radiator include MHB band and Sub-6G band, and the operating frequency bands of the second radiator include GPS _ L1 band, wifi _2.4G band, and Wifi _5G band.

9. The foldable electronic device of any of claims 1-3, wherein the first body further comprises a third radiator connected to the first bezel, the second body further comprises a third branch, and the third branch and the second bezel are spaced apart;

10. The foldable electronic device of claim 9, wherein the operating frequency band of the third radiator is a GPS _ L5 frequency band.