CN116780165A - Antenna and handheld communication equipment - Google Patents

Abstract

The application discloses an antenna, which is used for handheld communication equipment, and comprises an antenna main body, a first antenna unit, a second antenna unit and a third antenna unit, wherein the antenna main body is arranged as a deformable antenna unit and is used for deforming the deformable antenna unit from an initial state to a satellite communication state; the deformable antenna unit comprises a radiator and a feed part, wherein the feed part is electrically connected with the radiator, and the radiator is connected with a radio frequency circuit on the mobile terminal main body through the feed part so as to realize the transmission function of antenna signals; the steering base is arranged on the mobile terminal main body, is connected with the antenna unit to adjust the posture of the antenna unit and drive the antenna unit to rotate in different directions; under the satellite communication mode, the antenna unit is controlled to be converted into an unfolding state from a folding state so as to adjust the position and the posture of the antenna main body, the problem of the built-in antenna is solved, the built-in antenna is integrated in the mobile terminal main body, the portability and the appearance of the mobile terminal main body are ensured, and the posture adjustment of the antenna can be realized so as to meet the requirement that the antenna radiates towards the sky in various use scenes of the mobile terminal main body.

Description

Antenna and handheld communication equipment

Technical Field

The present application relates to the field of handheld communication devices, and in particular, to an antenna and a handheld communication device.

Background

Satellite communication is an effective means of communication in the event of insufficient coverage or poor signals from the cellular base station. There are several technical challenges to integrating satellite communication technology into handsets. Electromagnetic waves of current wireless communication of handheld communication devices with cellular base stations or other devices typically propagate in linear polarization. But the ground device is communicated with satellites which are far from hundreds of kilometers to thousands of kilometers, and the middle part of the ground device needs to pass through an atmosphere layer due to long propagation distance, and the linear polarization antenna can generate polarization distortion due to the Faraday rotation effect of an ionosphere; the circularly polarized wave is less affected by multipath effect and polarization distortion, has no strict placing posture requirement on the receiving antenna, and resists cloud and rain interference, so that the circularly polarized antenna is a better choice for satellite communication in order to improve the reliability and stability of satellite communication and effectively reduce the distortion and attenuation of communication signals.

The mobile phone has smaller volume, more internal metal parts and great difficulty in realizing the integration of the circularly polarized or axially lower elliptical polarized antenna. This makes it an urgent problem to be solved to realize a circularly polarized antenna for stable and reliable satellite communication without affecting portability of conventional handheld communication devices.

The conventional circularly polarized antenna is shown in fig. 1, and the antenna unit is formed by tiling structures such as a radiating arm, a feed line and the like, and has the defects that the area is large, the antenna is difficult to be incorporated into a mobile phone, and the antenna unit needs to work outside a mobile phone shell; the antenna unit as shown in fig. 2 is cylindrical, and the radiating arms distributed therein are spiral, which has the disadvantages that: the antenna unit has large diameter and thickness, exceeds the thickness of the existing mobile phone, and is difficult to be incorporated into the mobile phone. It follows that the difficulties of the prior art designs are: the built-in antenna is incorporated into the mobile phone and meets the portability and appearance requirements of consumers.

Disclosure of Invention

The application aims to provide an antenna and a handheld communication device, which are suitable for the handheld communication device, solve the problem of built-in antennas, integrate the circularly polarized or elliptically polarized built-in antennas into a mobile terminal main body, ensure portability and appearance of the mobile terminal main body while providing a space meeting the performance of the antennas, and realize the posture adjustment of the antennas so as to enable the antennas to radiate towards sky in various use scenes of the mobile terminal main body.

The application discloses an antenna for a handheld communication device, comprising:

an antenna body configured as a deformable antenna unit, disposed on the mobile terminal body, for deforming the deformable antenna unit from an initial state to a satellite communication state in an operation mode to achieve circular polarization performance;

the deformable antenna unit comprises a radiator and a feed part, wherein the feed part is electrically connected with the radiator, and the radiator is connected with a radio frequency circuit on the mobile terminal main body through the feed part so as to realize the transmission function of antenna signals;

the steering base is arranged on the mobile terminal main body, is connected with the antenna unit, and is used for adjusting the posture of the antenna unit and driving the antenna unit to rotate in different directions;

in the satellite communication mode, the antenna unit is controlled to be converted from a folded state to an unfolded state so as to adjust the position and the posture of the antenna main body to enable the maximum gain direction of antenna radiation to be close to the propagation direction of a satellite antenna beam and unfolded into an antenna shape capable of generating circularly polarized or elliptically polarized radiation.

Preferably, the deformable antenna unit includes a first rocker arm and a second rocker arm, the second rocker arm is disposed inside the first rocker arm and is folded into a linear structure in an initial state, and the first rocker arm and the second rocker arm are rotatably connected to deform the second rocker arm inside the first rocker arm into an unfolded structure in a satellite communication state.

Preferably, the second rocker arm is a plate-like structure, and the radiator is partially disposed on an outer surface of the second rocker arm; the first rocker arm is of a shell structure, the radiator is partially arranged on the outer surface of the first rocker arm, the feeding part is distributed on the inner cavity surface of the first rocker arm, a through hole is formed in the feeding part, an elastic connector is arranged in the through hole, and when the first rocker arm and the second rocker arm are unfolded, the corresponding elastic connector on the feeding part conducts the radiator on the first rocker arm and the radiator on the second rocker arm.

Preferably, one end of the first rocker arm is provided with a radio frequency transmission coaxial line, the radio frequency transmission coaxial line is fixedly connected with the feed part, the other end of the first rocker arm is connected with the steering base, the inner side of the mobile terminal body is provided with a slot hole for installing a radio frequency transmission line and a supporting cotter pin, and the radio frequency transmission coaxial line passes through the steering base and the supporting cotter pin to enter the mobile terminal body.

Preferably, the first rocker arm is provided with a first accommodating part in which the second rocker arm is arranged, two sides corresponding to the first accommodating part are provided with a first opening end and a second opening end corresponding to the first opening end, and the second rocker arm penetrates through the second opening part and the second opening end to change the deformable antenna unit from a folded state to an unfolded state.

Preferably, the length of each of the first opening end and the second opening end is 1/2 or more of the length of the second rocker arm.

Preferably, a second accommodating part for accommodating the antenna main body is arranged on the inner side of the mobile terminal main body, a connector with a function of limiting the antenna unit to be completely pulled out is arranged at the joint of the second accommodating part and the steering base, the antenna unit is pulled out of the accommodating part in a satellite communication mode, the connector and the antenna unit are connected to a radio frequency circuit in the mobile terminal main body in a conducting manner, and the position of the antenna unit is adjusted according to the gesture of the mobile terminal main body and satellite communication and is deformed into an unfolding state; and in a non-satellite communication mode, the antenna unit is folded into a folded state and is inserted into the mobile terminal main body, so that the steering base is separated from the connector, and the antenna unit is disconnected from a radio frequency circuit in the mobile terminal main body.

Preferably, the steering base at least comprises a first rotating part, a second rotating part and a third rotating part which are sequentially connected, a first rotating shaft is arranged between the first rotating part and the second rotating part along the length direction of the antenna unit, one end of the first rotating part is fixedly connected with the antenna unit, and the other end of the first rotating part is connected with one end of the second rotating part through the first rotating shaft, so that the first rotating part is driven to rotate relative to the second rotating part by taking a first axis as a shaft, and the antenna unit is driven to rotate; the antenna comprises an antenna unit, a first rotating part, a second rotating part, a third rotating part, a first rotating shaft, a second rotating shaft, a third rotating part, a first antenna unit and a second antenna unit, wherein the first rotating part is arranged between the first rotating part and the third rotating part along the width direction of the antenna unit, the second rotating part and the third rotating part are axially and rotatably sleeved on the first rotating shaft along the second rotating shaft, the second rotating part is driven to rotate relative to the third rotating part by taking the second axis as the shaft, and the antenna unit is driven to rotate around at least two directions under the working mode so as to achieve the required satellite communication position.

Preferably, the steering base further includes a fourth rotating portion, a third rotating shaft is disposed between the third rotating shaft and the fourth rotating shaft along a length direction of the antenna unit, the other end of the third rotating portion is connected with the fourth rotating portion through the third rotating shaft, and the third rotating portion is driven to rotate relative to the fourth rotating portion by taking the third axis as an axis, so that the antenna unit is driven to rotate around any direction in a working mode to achieve an optimal satellite communication position.

Preferably, the antenna body is disposed in the mobile terminal body in at least two directions along a side of the mobile terminal body.

Preferably, the antenna body is disposed inside the mobile terminal body and detachably connected to the mobile terminal body.

The application further provides a handheld communication device comprising the antenna.

Aiming at the prior art, the application has the following beneficial effects:

1. the antenna provided by the application is suitable for handheld communication equipment, in a working mode, the deformable antenna unit is deformed from a linear shape to a planar shape so as to realize circular polarization performance, the problem of built-in antennas is solved, the circular polarization or elliptical polarization built-in antennas are integrated in a mobile terminal main body, portability and appearance of the mobile terminal main body are ensured while antenna performance space is met, and the attitude adjustment of the antenna can be realized so as to meet the requirements that the antenna can radiate towards the sky in various use scenes of the mobile terminal main body, the alignment of the radiation direction of a satellite antenna of the terminal and a load satellite is ensured, and the pointing error loss of the antenna is reduced.

2. The antenna main body adopted by the application is independent of the mobile terminal main body, and can reduce the influence of the complex structure in the terminal on the antenna.

3. The second accommodation part is adopted, and the accommodation structure formed by folding the antenna main body and the position adjusting mechanism is completely accommodated in a non-satellite communication state, so that the thickness of the mobile terminal main body is not increased, and the light and thin properties of the mobile terminal main body are improved.

4. The circularly polarized or axially low elliptical polarized antenna adopted by the application is a preset distance away from the mobile terminal main body and faces the sky, and the conditions of horizontally holding and vertically holding the mobile phone and the like are adjusted by the position adjusting mechanism to achieve the optimal communication position.

5. The mobile terminal main body adopted by the application has aesthetic feeling and comfortable use requirements, the thickness of the whole mobile phone is adaptive to the aesthetic feeling and the comfortable feeling, and the appearance and the portability of the mobile terminal main body are affected to the minimum extent.

6. The satellite antenna adopted by the application is fixed on the mobile terminal body to prevent forgetting or losing.

Drawings

Fig. 1-2 are exemplary diagrams of antennas described in the background of the application;

fig. 3 is a first exemplary diagram of an antenna according to an embodiment of the present application;

fig. 4 is a diagram illustrating a rotation state of an antenna according to an embodiment of the present application

Fig. 5 is an exemplary diagram of an antenna body folded within a mobile terminal body in accordance with one embodiment of the present application;

fig. 6 to 7 are line-shaped and surface-shaped exemplary diagrams of an antenna body drawn out from a mobile terminal body according to an embodiment of the present application;

FIG. 8 is an exemplary diagram of a second rocker arm structure in accordance with one embodiment of the present application;

FIG. 9 is an exemplary view of the first rocker arm and the second rocker arm being deployed in a planar configuration in accordance with one embodiment of the present application;

FIG. 10 is a diagram showing an example of the distribution of the second receiving portion and the connector according to an embodiment of the present application;

FIGS. 11-12 are schematic illustrations of variations of the antenna according to an embodiment of the present application;

FIG. 13 is an exemplary illustration of a steering base structure in accordance with one embodiment of the present application;

FIG. 14 is a diagram showing an example of the distribution of antenna bodies according to an embodiment of the present application;

fig. 15-16 are diagrams illustrating a variation of the main structure of the antenna according to an embodiment of the present application;

fig. 17 is an exemplary diagram of an antenna body detachably connected in an embodiment of the present application;

wherein, 1-an antenna main body; 2-steering a base; 3-a mobile terminal body; 31-a second receptacle; 4-a radiator; 41-a power feed; 5-a first rocker arm; 51-a first accommodation portion; 6-a second rocker arm; 7-a first rotating part; 8-a second rotating part; 9-a third rotating part; 10-a fourth rotating part; 11-an elastic connector; a 12-connector; 13-radio frequency transmission coaxial line; 14-supporting cotter pins; 15-slots; 16-through holes; 17-slit.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Example 1

Referring to fig. 3-6, the application discloses an antenna applied to a handheld communication device, comprising:

an antenna body 1 provided as a deformable antenna unit provided on the mobile terminal body 3 for deforming the deformable antenna unit from an initial state to a satellite communication state in an operation mode to achieve circular polarization performance; in this embodiment, the initial state is a folded state of the antenna, such as a linear structure; the satellite communication state refers to an unfolding state of the antenna, for example, the antenna is unfolded into a cross structure or other planar structures on the same plane or non-planar structures on the same plane, and the planar structure antenna is mainly used for a centimeter or millimeter wave frequency band; very high frequency bands are typically predominantly linear structure antennas, while very high frequency bands are also used as linear and planar structure antennas.

The deformable antenna unit comprises a radiator 4 and a feed part 41, the feed part 41 is electrically connected with the radiator 4, and the radiator 4 is connected with a radio frequency circuit on the mobile terminal main body 3 through the feed part 41 so as to realize the transmission function of antenna signals; the radio frequency circuit for realizing the transmission function of the antenna signal in the present embodiment may be provided in the inside of the mobile terminal body 3 or at an arbitrary position on the outer surface of the mobile terminal body 3.

The steering base 2 is arranged on the mobile terminal main body 3, is connected with the antenna unit, and is used for adjusting the posture of the antenna unit and driving the antenna unit to rotate in different directions;

in a non-satellite communication mode, the antenna unit is folded inside the mobile terminal body 3; in the satellite communication mode, the antenna unit is controlled to be changed from the folded state to the unfolded state to adjust the position and the posture of the antenna body 1 so that the maximum gain direction of the antenna radiation is close to the propagation direction of the satellite antenna beam and unfolded into an antenna shape capable of generating circularly polarized or elliptically polarized radiation, as shown in fig. 5-7. The change from the folded state to the unfolded state in this embodiment may be achieved by external force or by providing an elastic means inside the mobile terminal body 3. The steering base 2 drives the antenna body 1 to switch between an unfolding state and a folding state, so that the antenna body 1 realizes function switching of satellite communication and non-satellite communication. In the present embodiment, the antenna body 1 can realize a terrestrial communication function also in the non-satellite communication. The antenna body 1 employed in the present embodiment can realize a satellite communication mode in an expanded state, and the antenna body 1 can realize a ground communication mode in any state, i.e., in an expanded state or in a collapsed/housed state.

As can be appreciated by those skilled in the art, the handheld communication device antenna provided in the embodiment of the present application is composed of an antenna body 1 and a steering base 2, and the antenna body 1 is connected to a mobile terminal body 3 through the steering base 2. Wherein the antenna body 1 is independent of the mobile terminal body 3, the influence of the complex structure inside the mobile terminal body 3 on the antenna can be reduced. The mobile terminal body 3 adopted in the embodiment of the application can be a mobile phone or a tablet personal computer and the like.

In one embodiment, the radiation direction of the antenna body 1 is opposite to the propagation direction of the satellite antenna beam to achieve the maximum gain, and the propagation direction of the satellite antenna beam includes a satellite direct propagation beam, a ground station beam or an effective beam reflected or transmitted by the intelligent super-surface. Wherein, intelligent super surface (RI S) is an artificial electromagnetic surface structure with programmable electromagnetic property, which is developed by the metamaterial technology. RIS is usually composed of a large number of carefully designed electromagnetic units, and by applying control signals to adjustable elements on the electromagnetic units, the electromagnetic properties of the electromagnetic units can be dynamically controlled, so that active intelligent regulation and control of space electromagnetic waves in a programmable manner are realized, and electromagnetic fields with controllable parameters such as amplitude, phase, polarization and frequency are formed. The RIS is deployed on the surface of various objects in a wireless transmission environment, so that the physical properties of a wireless channel can be changed. When the channel state is poor, the RIS can improve the transmission of information between the transmitter and the receiver by reflecting electromagnetic waves around obstacles, etc. RIS can improve the overall capacity and performance of the system by improving the channel environment. In order to solve the problem of larger path loss between the satellite and the ground when communicating with the satellite, an active RIS is introduced to enhance ground signals, so that effective communication between the mobile terminal and the satellite is better ensured. The maximum gain direction of the antenna body radiation is close to the propagation direction of the satellite antenna beam, and the propagation direction of the satellite antenna beam can be a satellite direct propagation beam, a ground station beam or an effective beam reflected or transmitted by the intelligent super surface.

Considering the transmission loss of the satellite-to-ground communication link, the frequency band adopted in the mobile terminal is mainly concentrated in the low frequency band such as L or S at present, and the lower the frequency is, the smaller the free space propagation loss is, so that the requirements on the antenna gain and the power consumption of the mobile communication terminal are relatively low, and the satellite mobile phone can be directly connected. As more constellation layouts evolve towards low-rail and even ultra-low-rail, the propagation loss of free space is greatly reduced due to the reduction of transmission distance, and in the future higher Ku/Ka and even Q/V frequency bands may also directly enter the mobile communication terminal.

In satellite communications, optimal reception may be achieved when the antenna transmission and reception match homopolarity. However, the satellite-ground communication distance is long, the environment where the transmission path passes is complex, and particularly, the anisotropic property of atmospheric molecules and rain and fog water drops in the troposphere can cause the polarization property of electromagnetic waves to be changed, which is commonly called depolarization effect. If a linear polarization antenna in a traditional handheld communication device is adopted, polarization mismatch loss can be caused after polarization distortion, and serious incapacity of communication can be caused directly. The circularly polarized antenna is less affected by multipath effect and polarization distortion, so that the distortion and attenuation of communication signals can be effectively reduced, the reliability and stability of satellite communication are greatly improved, and the circularly polarized antenna is a better choice for satellite communication. The antenna body 1 employed in the present embodiment includes an elliptical polarized antenna element and a radio frequency transmission line having a circular polarization or axis which is relatively low.

In order to reduce the influence of the complex structure inside the mobile terminal body 3 on the antenna, the outer shape of the antenna body 1 may be unfolded from a linear structure to a planar structure such as a cross-shape, as shown in fig. 7. Specifically, the deformable antenna unit includes a first rocker arm 5 and a second rocker arm 6, the second rocker arm 6 is disposed inside the first rocker arm 5 and is folded into a linear structure in an initial state, and the first rocker arm 5 and the second rocker arm 6 are rotationally connected to deform the second rocker arm 6 inside the first rocker arm 5 into an unfolded structure in a satellite communication state, such as the planar structure antenna described above. The antenna unit is housed in the casing in a non-communication state, as shown in fig. 5. When communication is needed, the antenna is pulled out from the casing, and a proper position is found outside the mobile phone and is unfolded to form the antenna shape which can generate better circular polarization performance, as shown in fig. 6-7.

Specifically, the first rocker arm 5 is provided with a first accommodating portion 51 in which the second rocker arm 6 is arranged, two sides corresponding to the first accommodating portion 51 are provided with a first opening end and a second opening end corresponding to the first opening end, and the second rocker arm 6 passes through the second opening portion and the second opening end to change the deformable antenna unit from a folded state to an unfolded state. The first accommodating portion 51 used in this embodiment may be understood as a chamber formed in the first rocker arm 5, that is, the body of the first rocker arm 5 is a rectangular parallelepiped structure or other flat structure with a hollow interior.

In various embodiments of the present application, the length of each of the first and second open ends is greater than or equal to 1/2 of the length of the second rocker arm 6. In practice, the first opening end and the second opening end may have the same or different opening lengths at both ends of the first accommodating portion 51, so that the second rocker arm 6 may be rotated to be in a unfolded state. For example, in one embodiment, the length of the first open end on one side of the first accommodating portion 51 is longer than the length of the second rocker arm 6, and the length of the second open end on the other side of the first accommodating portion 51 coincides with the length of the first open end, so that the second rocker arm 6 can be rotated out. In another embodiment, the open end of either side of the first receiving portion 51 has a length that is greater than the length of the second swing arm 6, and only the open end of the other side has a length that is 1/2 of the length of the second swing arm 6, or other lengths that are greater than 1/2 of the length of the second swing arm 6, etc., as shown in fig. 3 and 4.

In one embodiment, the second rocker arm 6 is a plate-like structure, and the radiator 4 is partially disposed on an outer surface of the second rocker arm 6; the first rocker arm 5 is of a shell structure, the radiator 4 is partially arranged on the outer surface of the first rocker arm 5, the feeding portion 41 is distributed on the inner cavity surface of the first rocker arm 5, a through hole 16 is formed in the feeding portion 41, an elastic connector 11 is arranged in the through hole 16, and when the first rocker arm 5 and the second rocker arm 6 are unfolded, the corresponding elastic connector 11 on the feeding portion 41 conducts the radiator 4 on the first rocker arm 5 and the radiator 4 on the second rocker arm 6. The elastic connector 11 used in this embodiment may be pogo pin or other components. Specifically, the design scheme is that a part of the radiator 4 and the feed part 41 of the antenna unit are arranged on the first rocker arm 5, the other part of the radiator 4 of the antenna unit is arranged on the second rocker arm 6, the first rocker arm 5 and the second rocker arm 6 can rotate around a rotating shaft, and the radiator 4 and the feed part 41 on the first rocker arm 5 and the second rocker arm 6 are conducted in a pogo pin mode, as shown in fig. 8. The second rocker arm 6 can be hidden in the first rocker arm 5, and the whole antenna body 1 is linear in shape, such as a flat sheet body in a straight shape, and is easy to be placed in a mobile phone shell for holding; the second rocker arm 6 is rotated out of the first rocker arm 5, and an antenna shape suitable for generating circular polarization performance can be developed, as shown in fig. 9.

In another embodiment, the antenna body 1 includes a first rocker arm 5, a second rocker arm 6, and other parts such as a radiator 4, a feeding portion 41, a radio frequency transmission coaxial line 13, and a pogo pi n on each member, as shown in fig. 15. The first rocker arm 5 is composed of a first rocker arm 5 main body, a first rocker arm 5 top cover and a first rocker arm 5 bottom plate, a radiator 4 is arranged on the outer surface of the first rocker arm 5 main body, a power feeding part 41 is arranged on the inner cavity surface of the first rocker arm 5, a radio frequency transmission coaxial line 13 is welded on the power feeding part 41, a through hole 16 is formed in the power feeding part 41, and an elastic connector 11pogo pi n,pogo pi n is arranged in the through hole 16. The radiator 4 surface on the second rocker arm 6 is composed of a wear-resistant metal. After the first rocker arm 5 and the second rocker arm 6 are unfolded, the two pogo pi n on the power feeding part 41 conduct the radiators 4 on the first rocker arm 5 and the second rocker arm 6. The rotation axis of the second rocker arm 6 is a plastic protrusion of the top cover of the first rocker arm 5, passing through the body of the first rocker arm 5 and the second rocker arm 6, as shown in fig. 15. One end of the first rocker arm 5 is connected with the steering base 2, the steering base 2 is provided with a cavity and a cotter pin through hole 16, and the radio frequency coaxial line in the first rocker arm 5 passes through the steering base 2 and the cotter pin to enter the mobile phone, as shown in fig. 16.

The steering base 2 employed in this embodiment allows the antenna body 1 to be rotated about the X, Y, Z axis to find a preferred communication satellite, as shown in fig. 3-4. In one embodiment, the steering base 2 includes at least a first rotating portion 7, a second rotating portion 8, and a third rotating portion 9 that are sequentially connected, a first rotating shaft is disposed between the first rotating portion 7 and the second rotating portion 8 along a length direction of the antenna unit, one end of the first rotating portion 7 is fixedly connected with the antenna unit, and the other end of the first rotating portion 7 is connected with one end of the second rotating portion 8 through the first rotating shaft, so as to drive the first rotating portion 7 to rotate relative to the second rotating portion 8 with a first axis as an axis, so as to drive the antenna unit to rotate; a second rotating shaft is arranged between the second rotating part 8 and the third rotating part 9 along the width direction of the antenna unit, the other end of the second rotating part 8 and one end of the third rotating part 9 are axially and rotatably sleeved on the second rotating shaft along the second rotating shaft, the second rotating part 8 is driven to rotate relative to the third rotating part 9 by taking the second axis as an axis, so that the antenna unit is driven to rotate, and the antenna unit is driven to rotate around at least two directions under a working mode so as to achieve a required satellite communication position. The rotating part used in this embodiment may be a hinge part or other part connected to the rotating shaft. The number of the turning parts used for the steering base 2 in this embodiment may be 3, 4 or other numbers, and the number is not limited.

In another embodiment, the steering base 2 includes at least a first rotating portion 7, a second rotating portion 8, a third rotating portion 9, and a fourth rotating portion 10 that are sequentially connected, a first rotating shaft is disposed between the first rotating portion 7 and the second rotating portion 8 along a length direction of the antenna unit, one end of the first rotating portion 7 is fixedly connected with the antenna unit, and the other end of the first rotating portion 7 is connected with one end of the second rotating portion 8 through the first rotating shaft, so as to drive the first rotating portion 7 to rotate relative to the second rotating portion 8 with a first axis as an axis, thereby driving the antenna unit to rotate; a second rotating shaft is arranged between the second rotating part 8 and the third rotating part 9 along the width direction of the antenna unit, the other end of the second rotating part 8 and one end of the third rotating part 9 are axially and rotatably sleeved on the second rotating shaft along the second rotating shaft, the second rotating part 8 is driven to rotate relative to the third rotating part 9 by taking the second axis as an axis so as to drive the antenna unit to rotate, a third rotating shaft is arranged between the third rotating shaft and the fourth rotating shaft along the length direction of the antenna unit, the other end of the third rotating part 9 is connected with the fourth rotating part 10 through the third rotating shaft, and the third rotating part 9 is driven to rotate relative to the fourth rotating part 10 by taking the third axis as an axis so as to drive the antenna unit to rotate around any direction in an operating mode so as to achieve the optimal satellite communication position. The first axis is a central line of the first rotating shaft, namely a Z axis, the second axis is a central line of the second rotating shaft, namely a Y axis, and the third axis is a central line of the third rotating shaft, namely an X axis; it will be understood that the steering base 2 used in this embodiment is composed of 4 hinge parts, and besides providing a rotation function about X, Y, Z axis, a radio frequency coaxial transmission line structure is also provided in a continuous cavity channel inside the hinge to provide a transmission function of antenna signals, and a damping member is provided between hinge interfaces to provide a rotation resistance to maintain a stop position of the antenna body 1, as shown in fig. 4.

At present, more low frequency bands are used, and the problem is that the antenna is large in size. The mobile communication device is generally approximately rectangular and thin in thickness. It is difficult to realize resonance with equal amplitude in both the thickness direction and the length (width) direction. In addition, the internal structure of the mobile phone is complex, and the implementation of the completely built-in broadband circularly polarized antenna is difficult. Therefore, the antennas of the handheld satellite devices in the market are usually large and striking, which can cause the terminal devices to be very thick and heavy, and do not accord with the characteristics and development trend of the thin and light intelligent mobile terminals used to by people.

In order to solve the above-mentioned drawbacks, as shown in fig. 10, a second accommodating portion 31 for accommodating the antenna body 1 is provided inside the mobile terminal body 3, a connector 12 having a function of restricting the antenna unit from being completely pulled out is provided at a connection portion between the second accommodating portion 31 and the steering base 2, the antenna unit is pulled out from the accommodating portion in a satellite communication mode, the connector 12 and the antenna unit are connected to a radio frequency circuit inside the mobile terminal body 3 in a conductive manner, and a position of the antenna unit is adjusted according to a posture of the mobile terminal body 3 and satellite communication and is deformed into an unfolded state; in the non-satellite communication mode, the antenna unit is folded into a folded state and inserted into the mobile terminal body 3, so that the steering base 2 is separated from the connector 12, thereby disconnecting the antenna unit from the radio frequency circuit inside the mobile terminal body 3. The second accommodating portion 31 in this embodiment is a cavity/long groove in the mobile phone, which may be rectangular or other regular or irregular elongated shape, so as to reduce interference to the internal structure of the mobile phone.

In various embodiments of the present application, the antenna body 1 is disposed in the mobile terminal body 3 in at least two directions along the side of the entire body of the mobile terminal body 3. The first variant of the antenna body 1 is that the antenna element is carried in and out of the device housing in a roll-in and roll-out fashion about an axis on the handset, and is received in a flat-shaped housing, such as in a slot in the top and side frames of the handset housing, as shown in fig. 11.

In more detail, one or two second mounting parts are provided on the inner side of the mobile phone shell frame, the second mounting parts can be in a long groove structure, the long groove can accommodate the flat piece-shaped antenna, the long groove is opened at the mobile phone rear cover plate end, the side wall of the long groove is provided with a slotted hole 15 for mounting the radio frequency transmission coaxial line 13 and supporting the split pin 14, and the split pin is a rotating shaft of the steering base 2 rotating around the mobile phone, as shown in fig. 12.

Specifically, one end of the first rocker arm 5 is provided with a radio frequency transmission coaxial line 13, the radio frequency transmission coaxial line 13 is fixedly connected with the feeding portion 41, the other end of the first rocker arm 5 is connected with the steering base 2, a slot hole 15 for installing the radio frequency transmission coaxial line 13 and the supporting cotter pin 14 is formed in the inner side of the mobile terminal main body 3, and the radio frequency transmission coaxial line 13 passes through the steering base 2 and the supporting cotter pin 14 to enter the mobile terminal main body 3. The number of the rotating parts in the steering base 2 used in this variation is reduced to three, and rotation about two directional axes can be achieved to improve the transmission efficiency of the rf transmission line, as shown in fig. 13. In the example, two satellite antennas are required to be installed on the mobile phone, the antennas in the side frames are used when the mobile phone is horizontally held, the antennas in the top side frames are used when the mobile phone is vertically held, and as shown in fig. 14, the antenna main body 1 can be retracted into the long groove after being used.

In various embodiments of the present application, the antenna body 1 is disposed inside the mobile terminal body 3 and detachably connected to the mobile terminal body 3. In the second variation of the antenna main body 1 in this embodiment, the antenna is accommodated in an elongated slot on the metal frame outside the casing, for example, in an elongated slot on the outer side of the top frame of the mobile phone, as shown in fig. 17, the satellite antenna is plugged into and pulled out of the mobile phone, and the number of hinges in the steering base 2 is three, so that two-direction rotation can be realized. The number of the antennas is one, the through holes 16 in the groove are used for inserting and pulling the antennas into and out of the mobile phone, and the connector 12 beside the through holes 16 in the mobile phone limits the antennas to be pulled out of the mobile phone integrally, so that the antennas and a mobile phone main board can be communicated. The antenna main body 1 is composed of an antenna main body 1 and a rotating base joint, the radiator 4 of the antenna main body 1 is respectively arranged on an upper radiator support and a lower radiator support, the upper radiator support is welded on the antenna base frame, and the lower radiator 4 support can rotate relative to the upper radiator 4 support to be unfolded into a surface. The antenna pedestal is provided with a 50 omega radio frequency connector and a radio frequency transmission coaxial line connecting feed part 41, the steering base joint is a specially-made 50 omega radio frequency connector, and one end of the antenna main body 1 is connected with the base and can rotate around the base. The method for using the satellite antenna is that the antenna main body 1 is pulled out from the long groove, the satellite antenna is connected with the connector 12 in the mobile phone in a conducting way to be connected with a satellite radio frequency circuit of the mobile phone, the position of the antenna main body 1 is adjusted according to the gesture of the mobile phone and satellite communication, the upper radiator support and the lower radiator support are unfolded to be in a plane shape, the antenna is retracted to be in a linear shape after being used and inserted into the mobile phone for storage, the steering base in the antenna main body 1 is separated from the connector 12 in the mobile phone, and the antenna radiator 4 and the like are disconnected with the satellite radio frequency circuit.

Example two

Based on the same conception, the application also provides a handheld communication device, which comprises an antenna, and the antenna specifically comprises:

an antenna body 1 provided as a deformable antenna unit provided on the mobile terminal body 3 for deforming the deformable antenna unit from an initial state to a satellite communication state in an operation mode to achieve circular polarization performance;

the deformable antenna unit comprises a radiator 4 and a feed part 41, the feed part 41 is electrically connected with the radiator 4, and the radiator 4 is connected with a radio frequency circuit on the mobile terminal main body 3 through the feed part 41 so as to realize the transmission function of antenna signals;

the steering base 2 is arranged on the mobile terminal main body 3, is connected with the antenna unit, and is used for adjusting the posture of the antenna unit and driving the antenna unit to rotate in different directions;

in a non-satellite communication mode, the antenna unit is folded inside the mobile terminal body 3; in the satellite communication mode, the antenna unit is controlled to be changed from a folded state to an unfolded state to adjust the position and the posture of the antenna body 1 so that the direction of antenna radiation faces the propagation direction of the satellite antenna beam and is unfolded into an antenna shape capable of generating circularly polarized or elliptically polarized radiation.

In the satellite communication mode, the mobile terminal body 3 is controlled to be in various use postures, and the antenna body 1 can enable the antenna radiation direction to be close to the satellite antenna beam propagation direction, so that the antenna body 1 and the satellite load end beam are aligned, and the minimum antenna pointing error loss is realized.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. An antenna for a handheld communication device, comprising:

an antenna body configured as a deformable antenna unit, disposed on the mobile terminal body, for deforming the deformable antenna unit from an initial state to a satellite communication state in an operation mode to achieve circular polarization performance;

the deformable antenna unit comprises a radiator and a feed part, wherein the feed part is electrically connected with the radiator, and the radiator is connected with a radio frequency circuit on the mobile terminal main body through the feed part so as to realize the transmission function of antenna signals;

the steering base is arranged on the mobile terminal main body, is connected with the antenna unit, and is used for adjusting the posture of the antenna unit and driving the antenna unit to rotate in different directions;

in the satellite communication mode, the antenna unit is controlled to be converted from a folded state to an unfolded state so as to adjust the position and the posture of the antenna main body to enable the direction of antenna radiation to be close to the propagation direction of a satellite antenna beam and to be unfolded into an antenna shape capable of generating circularly polarized or elliptically polarized radiation.

2. The antenna of claim 1, wherein the deformable antenna element comprises a first rocker arm and a second rocker arm, the second rocker arm disposed within the first rocker arm to collapse into a linear configuration in an initial state, the first rocker arm and the second rocker arm being rotatably coupled to deform the second rocker arm within the first rocker arm into an expanded configuration in a satellite communication state.

3. The antenna of claim 2, wherein the second rocker arm is a plate-like structure, the radiator being disposed partially on an outer surface of the second rocker arm; the first rocker arm is of a shell structure, the radiator is partially arranged on the outer surface of the first rocker arm, the feeding part is distributed on the inner cavity surface of the first rocker arm, a through hole is formed in the feeding part, an elastic connector is arranged in the through hole, and when the first rocker arm and the second rocker arm are unfolded, the corresponding elastic connector on the feeding part conducts the radiator on the first rocker arm and the radiator on the second rocker arm.

4. The antenna of claim 2, wherein one end of the first rocker arm is provided with a radio frequency transmission coaxial line, the radio frequency transmission coaxial line is fixedly connected with the feed part, the other end of the first rocker arm is connected with the steering base, a slot hole for installing a radio frequency transmission line and a supporting cotter pin is formed in the inner side of the mobile terminal body, and the radio frequency transmission coaxial line passes through the steering base and the supporting cotter pin to enter the mobile terminal body.

5. The antenna according to claim 2, wherein the first rocker arm is provided with a first accommodating portion in which the second rocker arm is built, both sides of the first accommodating portion are provided with a first opening end and a second opening end which is provided corresponding to the first opening end, and the second rocker arm passes through the second opening portion and the second opening end to change the deformable antenna unit from a folded state to an unfolded state.

6. The antenna of claim 5, wherein the length of each of the first open end and the second open end is greater than or equal to 1/2 the length of the second rocker arm.

7. The antenna according to claim 1, wherein a second accommodating portion accommodating the antenna body is provided inside the mobile terminal body, a connector having a function of restricting complete extraction of the antenna unit is provided at a connection portion of the second accommodating portion and the steering base, the antenna unit is extracted from the accommodating portion in a satellite communication mode, the connector and the antenna unit are connected to a radio frequency circuit inside the mobile terminal body in a conductive manner, and a position of the antenna unit is adjusted according to a posture of the mobile terminal body and satellite communication and is deformed into an expanded state; and in a non-satellite communication mode, the antenna unit is folded into a folded state and is inserted into the mobile terminal main body, so that the steering base is separated from the connector, and the antenna unit is disconnected from a radio frequency circuit in the mobile terminal main body.

8. The antenna of claim 1, wherein the steering base comprises at least a first rotating part, a second rotating part and a third rotating part which are sequentially connected, a first rotating shaft is arranged between the first rotating part and the second rotating part along the length direction of the antenna unit, one end of the first rotating part is fixedly connected with the antenna unit, and the other end of the first rotating part is connected with one end of the second rotating part through the first rotating shaft, so that the first rotating part is driven to rotate relative to the second rotating part by taking a first axis as an axis to drive the antenna unit to rotate; the antenna comprises an antenna unit, a first rotating part, a second rotating part, a third rotating part, a first rotating shaft, a second rotating shaft, a third rotating part, a first antenna unit and a second antenna unit, wherein the first rotating part is arranged between the first rotating part and the third rotating part along the width direction of the antenna unit, the second rotating part and the third rotating part are axially and rotatably sleeved on the first rotating shaft along the second rotating shaft, the second rotating part is driven to rotate relative to the third rotating part by taking the second axis as the shaft, and the antenna unit is driven to rotate around at least two directions under the working mode so as to achieve the required satellite communication position.

9. The antenna of claim 8, wherein the steering base further comprises a fourth rotating portion, a third rotating shaft is disposed between the third rotating shaft and the fourth rotating shaft along the length direction of the antenna unit, the other end of the third rotating portion is connected with the fourth rotating portion through the third rotating shaft, and the third rotating portion is driven to rotate relative to the fourth rotating portion by taking the third axis as an axis, so that the antenna unit is driven to rotate around any direction in an operating mode to achieve an optimal satellite communication position.

10. The antenna of claim 1, wherein the antenna body is disposed within the mobile terminal body in at least two directions along a body-side of the mobile terminal body.

11. The antenna according to claim 1, wherein the antenna body is provided inside the mobile terminal body and detachably connected to the mobile terminal body.

12. A handheld communication device comprising an antenna according to any one of claims 1 to 11.