WO2019219054A1

WO2019219054A1 - Multiband antenna and mobile terminal

Info

Publication number: WO2019219054A1
Application number: PCT/CN2019/087187
Authority: WO
Inventors: 贾玉虎
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-05-18
Filing date: 2019-05-16
Publication date: 2019-11-21
Also published as: CN108767459A

Abstract

A multiband antenna, comprising: a substrate, and a radiation patch, a first resonator and a grounded metal patch that are provided on the substrate. The radiation patch is used for radiating an antenna signal. The first resonator has a composite left-and-right-hand structure and is connected to the radiation patch. The first resonator is configured to receive a fed-in antenna signal and implement more than one resonant mode under excitation of the antenna signal. The grounded metal patch is provided at one side of the first resonator at intervals, is connected to the first resonator by means of a microstrip structure, and is used for providing a ground loop for the first resonator.

Description

Multi-band antenna and mobile terminal

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201 810 478 796X, entitled "A Multi-Band Antenna and Mobile Terminal" on May 18, 2018, the entire contents of which are incorporated herein by reference. in.

Technical field

The present application relates to the field of antenna technologies, and in particular, to a multi-band antenna and a mobile terminal.

Background technique

At present, smart mobile devices, such as smart phones, personal device assistants, PDAs, tablet computers and other portable mobile terminals have become more and more popular. For mobile terminals, the design of the antenna will determine the reliability and efficiency of wireless signal transmission, so the antenna Design is one of the core of mobile terminals. With the popularity of Long Term Evolution (LTE) and the arrival of The Fifth Generation Mobile Systems (5G), multi-band and high-bandwidth are the core demands of antenna design. For example, in the field of 5G communication, the 5G antenna working frequency band not only covers the existing LTE frequency band, but also increases the working frequency band below 6 GHz (Sub-6 GHz). Specifically, the current increase of 3.3-3.6 GHz and 4.8-5 GHz In addition, in order to satisfy the antennas supporting the above frequency bands, the antenna can also be used in the wireless-Fidelity (Wi-Fi) operating frequency band (the operating frequency band is 5.15-5.8 GHz), and the working frequency band of the antenna At least three frequency bands need to be covered. In actual design, in order to meet the coverage frequency and stability of the next generation mobile communication antenna, the working frequency band of the antenna needs to be set between 3.3 and 7.05 GHz, and the entire bandwidth is 3.75 GHz.

In the conventional technology, in order to meet the above bandwidth requirements, a dual-antenna multi-band mode is often adopted in the actual mobile terminal antenna design process, and the working frequency band of the mode can cover most of the bandwidth band, but the antenna design structure is complicated. And the cost is higher.

Summary of the invention

According to various embodiments of the present application, a multi-band antenna and a mobile terminal are provided.

A multi-band antenna comprising:

a substrate, and a radiation patch, a first resonator, and a grounding metal patch disposed on the substrate, wherein

The radiation patch for radiating an antenna signal;

The first resonator is provided with a composite right and left hand structure, and is connected to the radiation patch, the first resonator is configured to receive the fed antenna signal, and realize more than one type under the excitation of the antenna signal Resonance mode; and

The grounding metal patch is spaced apart from one side of the first resonator and connected to the first resonator by a microstrip structure for providing a ground loop for the first resonator.

A mobile terminal includes the multi-band antenna.

In the multi-band antenna provided by the embodiment of the present application, the signal is transmitted to the radiation patch through the first resonator having the composite left and right hand structure, and is radiated externally by the radiation patch. Due to the multi-resonance mode characteristic of the composite left and right hand structure resonator, The single antenna operates in the multi-band mode, satisfies the design requirements of the multi-band antenna, improves the working bandwidth, and the grounding metal patch is disposed on one side of the first resonator, and passes through the microstrip structure and the first resonance The devices are connected to form an asymmetric coplanar microstrip structure, which can effectively reduce design cost and design space.

Details of one or more embodiments of the present application are set forth in the accompanying drawings and description below. Other features, objects, and advantages of the invention will be apparent from the description and appended claims.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and those skilled in the art can obtain drawings of other embodiments according to the drawings without any creative work.

FIG. 1 is a schematic structural diagram of a circuit of a multi-band antenna according to an embodiment of the present application.

2 is a circuit diagram of one embodiment of a first resonator in the multi-band antenna shown in FIG. 1.

3 is a circuit diagram of one embodiment of the multi-band antenna shown in FIG. 1.

FIG. 4 is a schematic circuit diagram of an embodiment of a multi-band antenna according to an embodiment of the present application.

FIG. 5 is a circuit diagram showing an embodiment of a first resonator in the multi-band antenna shown in FIG.

6 is a zero-order resonant equivalent circuit diagram of a first resonator in the multi-band antenna shown in FIG. 4.

7 is a first-order resonance equivalent circuit diagram of a first resonator in the multi-band antenna shown in FIG. 4.

FIG. 8 is a block diagram of a partial structure of a mobile phone related to a mobile terminal according to an embodiment of the present disclosure.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. However, the application can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the understanding of the disclosure of the present application will be more thorough.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning meaning meaning The terminology used in the description of the invention herein is for the purpose of describing the particular embodiments The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The embodiment of the present application provides a multi-band antenna, please refer to FIG. 1 . The antenna includes a substrate 10, and a radiation patch 11 disposed on the substrate 10, a first resonator 12, and a grounding metal patch 13, wherein

A radiation patch 11 for radiating an antenna signal.

The radiation patch 11 may be a metal layer of a polygonal structure, or may be an elongated metal patch, and the elongated metal patch may have a certain shape, such as a linear type, a broken line type or a curved type. Optionally, in order to meet the design requirements of the miniaturized antenna, the radiation patch 11 can be designed as a meander-type (Meander-Line), and the curved radiation patch includes a plurality of bending points and is based on a plurality of bending points. The dots form a U-shaped structure with an interval. For example, the radiation patch 11 bends the line antennas at different bending points to form a spaced U-shaped structure or a curved S-shaped structure. The advantage of the bent structure is that it can be designed in the free space on the phone motherboard, battery cover or mobile phone frame, so as to maximize the use of the mobile phone design space for the placement of the radiation patch.

The first resonator 12 is provided with a composite right and left hand structure, and is connected to the radiation patch 11, and the first resonator 12 is configured to realize more than one resonance mode, and receive the fed antenna signal, and transmit the antenna signal to the radiation through the wire 15. Patch 11.

The radiation patch 11 and the first resonator 12 may be connected by one or more wires, or may be directly connected to each other, that is, one end of the radiation patch 11 is directly connected to one end of the first resonator 12. The Composite Right/Left-Handed (CRLH) structural resonator is a new type of left-handed material with backward wave, low loss and controllable dispersion curve. There is a special non-zero frequency point on the transition between the left-hand passband and the right-hand passband of the composite left-right hand structure resonator, so that the left-hand transmission line and the right-hand transmission line have equal characteristic impedances, and a zero-order (Zeroth-Order, ZO) Resonator in resonant mode. For this type of resonator, in the zero-order resonance mode, the operating state transmission constant is zero and the wavelength is infinite. At this time, the operating frequency of the antenna no longer depends on the geometry of the antenna, and only constitutes the left-hand material transmission line. The inductance is related to the capacitor, so the resonator with CRLH structure can be small enough, and the antenna geometry can be reduced to less than one-twentieth of the operating frequency. In addition, the composite right and left hand also has the characteristics of multi-resonance mode, that is, by changing the structure size of the CRLH, the CRLH resonator can realize a zero-order and first-order (FO) dual-frequency resonance mode. In the positive first-order resonance mode, unlike the first-order resonance mode of the conventional microstrip, the positive first-order resonant frequency of the CRLH resonator is only related to the reactance parameter, and the size of the antenna can also be arbitrarily small. Similarly, the CRLH resonator can also realize a two-frequency and negative first-order dual-frequency resonance mode, or a zero-order, positive first-order and negative-order multi-frequency resonance mode can be simultaneously realized as needed.

FIG. 2 is a schematic view showing one of the structures of the first resonator 12. As shown in FIG. 2, the resonator 12 includes a plurality of interdigitated units 121, and the plurality of interdigitated units 121 are arranged in parallel with each other, and are equally spaced or unevenly spaced apart from each other to form an interdigitated structure in which fingers are interlaced. The interdigitated unit may be a metal etched line. The shape of the interdigitated unit may be a polygon or an irregular shape. The number of interdigitated units in the resonator 12 and the spacing between them can be adjusted. For example, the number of interdigitated units may be any one of 5-11 units, and the spacing between the interdigitated units may be set within a range of 10 mm. The different working frequency bands correspond to the number and spacing of different interdigitated units, so that the resonator 12 operates in the zero-order resonant mode. For example, for a Wi-Fi antenna, it is necessary to maintain the resonator in a zero-order mode of operation with a resonant frequency of 5.15 GHz to 5.8 GHz. For the LTE antenna, the number and spacing of the interdigitated units need to be re-adjusted so that they remain in the zero-order mode of operation, and the resonant frequency is 2.5-2.7 GHz or 3.4-3.8 GHz. For the 5G antenna, it is also necessary to meet the two frequency bands of 3.3-3.6 GHz and 4.8-5 GHz. In addition, the first resonator 12 further includes two connecting pieces 122 parallel to each other, the plurality of interdigitated units 121 are vertically distributed between the two connecting pieces 122, and any adjacent two interdigitated units are connected at different connections. Chip. For convenience of explanation, the two connecting pieces 122 are referred to as a first connecting piece 122a and a second connecting piece 122b. For example, any two adjacent interdigitated units in FIG. 2 are arranged in parallel, and an upper end of the interdigitated unit (referred to as interdigitated unit 121a for convenience of explanation) is connected to the first connecting piece 122a, and the lower end and the second connecting piece 122b are provided. At a certain interval, the lower end of the other interdigitating unit (referred to as the interdigitating unit 121b) is connected to the second connecting piece 122b, and the upper end is spaced apart from the first connecting piece 122a. By analogy, another adjacent interdigiting unit of 121b (referred to as interdigitating unit 121c) is connected to the interdigitating unit 121a, and the adjacent interdigiting unit 121d of the interdigitating unit 121c is further connected to the interdigitating unit. 121b is connected in the same way.

The grounding metal patch 13 is spaced apart from one side of the first resonator 12 and connected to the first resonator 12 through a microstrip structure for providing the grounding circuit grounding metal patch 13 for the first resonator 12 to have an asymmetry A metal layer of a coplanar microstrip structure in which a groove is etched in the metal layer. The Asymmetric Coplanar (ACP) microstrip structure is a special structure. In the traditional microstrip structure design, a symmetric coplanar microstrip structure is adopted, that is, two grounded metal patches of the same shape are symmetrically disposed on the left and right sides of the first resonator. The ACP microstrip structure only needs to provide a grounded metal patch on the left or right side of the first resonator 12, omitting another grounded metal patch, which has a small design space, low loss, simple fabrication, and easy Source device integration and flexible design. The grounded metal patch 13 can be a polygonal metal layer. For example, the grounding metal patch 13 may be a quadrangular metal layer having a groove etched at one end thereof, wherein the groove may be disposed at a position tangential to one side of the quadrilateral. For example, a groove is etched at a position in the middle right side of the quadrangle, and the groove has a certain length and width, and the length thereof is smaller than the side length of the upper side or the lower side of the quadrangle; the first connecting piece 122a of the first resonator extends into the groove and is The metal layers are connected. The width of the first connecting piece 122a is smaller than the width of the groove, and the first connecting piece 122a can be disposed in the middle of the groove, and two slits are formed on the upper and lower sides of the groove, and one end of the first connecting piece 122a is connected with the metal layer, and the other One end extends from the slot.

In one embodiment, as shown in FIG. 3, the multi-band antenna further includes:

The second resonator 14 is disposed on the substrate 10 and connected to the first resonator 12 for feeding the antenna signal to the first resonator 12.

It should be noted that the second resonator 14 may be disposed in parallel with the first resonator 12 on the same side of the grounding metal patch. The second resonator 14 may be a polygonal resonator such as a quadrilateral resonator. The quadrilateral resonator can be connected to the first resonator 12 via a connecting section 16, and the second resonator can feed the antenna signal into the first resonator 12 through the connecting line. It should be noted that the second resonator may be configured to implement a third resonant mode whose operating frequency is determined by the physical size of the second resonator 14 itself, and the resonance of the second resonator 14 under different physical dimensions. The mode operating frequency is not the same. For example, when the second resonator 14 is a rectangular resonator (RR), the second resonator 14 will produce a third resonance mode whose resonance frequency can be set at 6.85 GHz to 7 GHz. The operating frequency of the third resonant mode and the first resonant mode or the second resonant mode may be in the same frequency band or in different frequency bands, and the three working frequency bands may have intersections or may not overlap each other independently. Optionally, in order to make the bandwidth of the multi-band antenna cover different frequency bands, in the embodiment of the present application, the working frequency bands of the first, second, and third resonance modes are independent of each other, and each is in a different frequency band. Similarly, in one embodiment, the radiating patch 11 can be configured to implement a fourth resonant mode, the operating frequency band/resonant frequency band of the fourth resonant mode being related to the structure and physical dimensions of the radiation patch 11 itself, The bending type radiation patch 11 is taken as an example, the bending angle is different, the bending length and the width are changed, so that the working frequency band of the fourth resonance mode is in different intervals, for example, for the 5G multi-band antenna, the bending type radiation patch The operating band of 11 can be between 4 GHz and 4.2 GHz. The operating frequency of the fourth resonant mode and the first resonant mode, the second resonant mode, or the third resonant mode may be in the same frequency band, or may be in different frequency bands, and the four working frequency bands may have intersections or may not independently cross each other. . Optionally, in order to make the bandwidth of the multi-band antenna cover different frequency bands, in the embodiment of the present application, the working frequency bands of the first, second, third, and fourth resonance modes are independent of each other, and each is in a different frequency band.

In the embodiment of the present application, the multi-band antenna can operate in a frequency band of 3.3 GHz to 7.05 GHz, and can be applied to a wireless transmission technology as a 5G antenna. In addition, the multi-band antenna can also be used as a filter antenna, wherein the filter antenna is an integrated design of the filter and the antenna.

In the embodiment of the present application, FIG. 4 is a schematic structural diagram of a multi-band antenna in the embodiment of the present application. As shown in FIG. 4, the multi-band antenna includes a substrate 10, a radiation patch 11, a first resonator 12, a second resonator 14, and a grounding metal patch 13. The substrate 10 in the embodiment of the present application may be A copper foil substrate, such as a Printed Circuit Board (PCB) board. The substrate 10 may include a first surface and a second surface, wherein the radiation patch 11, the first resonator 12, and the second resonator 14 are disposed on the first surface of the substrate 10, and the grounding metal patch 13 is disposed on the substrate 10. The second side. The substrate 10 may also include only one side, and the above four modules are all disposed in different regions of the surface.

The radiation patch 11 is an elongated strip and a bent metal patch, wherein the radiation patch 11 has six bending points (A1-A6), respectively, and the bending points are distributed on different straight lines, and each bending is performed. The line bending angle of the point is 90 degrees. It can be understood that the bending angle of the bending point can also be other angles, for example, greater than or less than 90 degrees, and can also be further designed as rounded corners to achieve a smooth transition between the metal segments of different segments. The radiation patch 11 exhibits a U-shaped structure that is spaced apart from a plan view. According to the six bending points, the radiation patch 11 can be divided into 7 different metal sub-chips (L1-L7). Alternatively, the metal sub-patch can have a side length of L1: 8.3 mm, L2: 4.5. Mm, L3 = L5 = L7: 2.5 mm. Alternatively, the metal sub-patch may have a thickness of 0.5 mm. The radiation patch 11 can be configured to implement a fourth resonant mode, the operating frequency of the fourth resonant mode being related to the side length shape, size and thickness of the radiation patch 11, the fourth resonance according to the side length dimension and thickness of the above structure The mode operates at 4.03 GHz.

The first resonator 12 is a resonator having a CRLH structure and includes a plurality of interdigital units 121. The first resonator 12 can operate in a multi-frequency resonance mode, such as a zero-order resonance mode and a positive first-order resonance mode, a zero-order resonance mode and a negative first-order resonance mode, and a zero-order, positive first-order, and negative first-order resonance modes. One of the three multi-frequency resonance modes. The operating frequency of the first resonator 12 can be dynamically adjusted according to the difference in the number of interdigitated units and the pitch. For example, the width of the interdigitated unit may be 0.2 mm, and the spacing of the interdigitated unit may be 0.2 mm. Under the interdigitated unit structure of the size, the operating frequency of the zero-order resonant mode of the first resonator 12 is 5.01 GHz. The first-order resonant mode operates at 6.14 GHz. As shown in FIG. 4, the interdigitated units 121 have slits at a certain distance from each other, are continuously distributed and parallel to each other, and form a similar and interdigitated interdigitated structure. In addition, the first resonator 12 is provided with two upper and lower strip-shaped connecting pieces 122, and the intersecting unit 121 is vertically distributed between the upper and lower connecting pieces 122, and any two adjacent interdigitating units 121 are connected to different ones. Above the connecting piece 122. For convenience of explanation, the lower connecting piece is referred to as a first connecting piece, and the upper connecting piece is referred to as a second connecting piece. The first resonator 12 is connected to the radiation patch 11 via a wire 15 for feeding the antenna signal into the radiation patch 11 and radiating externally through the radiation patch 11.

The grounding metal patch 13 is located on the left side of the first resonator 12, wherein the grounding metal patch 13 is a rectangular metal surface. A groove 19 cut into the metal surface is etched on the side adjacent to the first resonator 12, and the groove has a certain depth and width. Alternatively, the groove may have a depth value of 6.6 mm and a width value of 0.5 mm. As can be seen from Figure 4, the depth of the slot is less than the length of either side of the rectangle. An extension of the first connecting piece 122 of the first resonator 12 is disposed in the slot, wherein the width of the extending portion of the first connecting piece 122 is smaller than the width of the groove, and the extension of the first connecting piece 122 disposed in the groove The edges and the upper and lower edges of the groove form two slits. Alternatively, the gap size may be 0.2 mm. One end of the first connecting piece 122 disposed in the slot is connected to the grounding metal patch through the slot to form a ground loop, and the other end extends from the slot, and the extended end is parallel to the second connecting piece. There are a plurality of interdigitated units, and the structure of the interdigitated units is as in the previous paragraph, and details are not described herein again.

The second resonator 14 is connected to the first resonator 12. The second resonator 14 can be located directly below the first resonator 12 and connected to the first resonator 12 via the connecting portion 16. The second resonator 14 feeds the antenna signal through the connection section 16 to the first resonator 12, and then transmits the antenna signal to the radiation patch 11 through the first resonator 12, and radiates externally through the radiation patch 11. Optionally, the second resonator 14 may also include three parts, which are a connecting section 16, a rectangular resonant body 17, and a rectangular connecting piece 18. The connecting section 16 is located on the right side of the rectangular resonant body 17 with a gap therebetween. Alternatively, the slit width value may be 0.3 mm. The rectangular connecting piece 18 is located directly below the rectangular resonant body 17 and the connecting section 16, and is connected to the rectangular connecting body 17 and the connecting section 16, respectively. Optionally, the rectangular tab height and width values are 1.6 mm and 3.8 mm, respectively. Similar to the radiation patch 11, the physical size of the second resonator 14 determines that the second resonator 14 is in the third resonant mode. The operating frequency of the third resonant mode is 6.85 GHz.

For the multi-band antenna, the radiation patch 11, the first resonator 12 and the second resonator 13 will generate four different resonance modes, thereby effectively widening the bandwidth and realizing a bandwidth of 3.3 GHz to 7.05 GHz. design.

Another exemplary CRLH structure diagram is also provided in the embodiment of the present application, and FIG. 5 is a schematic diagram of the exemplary CRLH structure resonator. As shown in FIG. 5, the CRHL structure resonator is short-circuited with parallel terminals by using serial interdigital capacitance. The

branch lines

122a and 122b constitute a zero-order and positive first-order resonator, and the equivalent circuit of the zero-order resonator is shown in FIG. 6. Wherein, the left-handed capacitor C _L in the equivalent circuit is generated by the interdigital unit 121; the left-handed inductor L _L is generated by the wire 15; the right-handed capacitor C _R is generated between the connecting

pieces

122a, 122b of the serial interdigitated unit and the grounding module 13; The right hand inductance L _R is generated by the connecting piece 122 itself. The equivalent circuit of the positive first-order resonator is shown in Fig. 7. Among them, the left-hand inductor L _L and the right-hand inductor L _R are in parallel relationship, G is transmission loss, C _R is right-hand capacitance, and Y' is input admittance.

Another embodiment of the present application provides a mobile terminal, including the multi-band antenna of each embodiment of the previous embodiment. The mobile terminal is, for example, a mobile phone, a personal device assistant PDA, a tablet computer, or the like.

In the embodiment of the present application, the multi-band antenna includes a first resonator having a CRLH structure, and the first resonator of the CRLH structure can operate in two different resonant modes of zero order and positive first order/negative first order, and the same The frequency bands are also different, thereby achieving dual-band communication and extending the communication bandwidth. Moreover, the multi-band antenna further includes a second resonator and a radiation patch, which respectively operate in the third and fourth resonance modes. Therefore, the multi-band antenna provided by the embodiment of the present application can generate up to four resonance modes, effectively The bandwidth is extended, and the bandwidth of the GHz, the LTE, and the 5G are provided. The rate is improved. Compared with the conventional 5G dual antenna design structure, the single antenna structure design cost provided by the embodiment of the present application is significantly reduced, and the process complexity is reduced, which is more favorable for commercial success. In addition, since the grounded metal patch adopts an asymmetric coplanar feeding structure in the multi-band antenna, compared with the conventional symmetric coplanar feeding structure, the design space is saved, and the position layout of the multi-band antenna is further improved. flexible.

The embodiment of the present application further provides a mobile terminal. As shown in FIG. 8 , for the convenience of description, only the parts related to the embodiments of the present application are shown. For details that are not disclosed, refer to the method part of the embodiment of the present application. The mobile terminal can be any mobile device, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an on-board computer, a wearable device, or the like, and the mobile terminal is used as a mobile phone as an example. :

FIG. 8 is a block diagram showing a partial structure of a mobile phone related to a mobile terminal provided by an embodiment of the present application. Referring to FIG. 8, the mobile phone includes: a radio frequency (RF) circuit 810, a memory 820, an input unit 830, a display unit 840, a sensor 850, an audio circuit 880, a wireless fidelity (WiFi) module 880, and a processor 880. And power supply 890 and other components. It will be understood by those skilled in the art that the structure of the mobile phone shown in FIG. 8 does not constitute a limitation to the mobile phone, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.

The RF circuit 810 can be used for receiving and transmitting information during the transmission or reception of information, and can receive and send the downlink information of the base station, and then send the uplink data to the base station. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 810 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Fifth Generation Communication Technology (5G), Email, Short Message Service (Short Messaging) Service, SMS, etc., the circuit structure of the RF may be any of the multi-band antennas mentioned in the above embodiments of the invention.

The memory 820 can be used to store software programs and modules, and the processor 880 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 820. The memory 820 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as an application of a sound playing function, an application of an image playing function, etc.); The data storage area can store data (such as audio data, address book, etc.) created according to the use of the mobile phone. Moreover, memory 820 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 830 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the handset 800. Specifically, the input unit 830 may include a touch panel 831 and other input devices 832. The touch panel 831, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 831 or near the touch panel 831. Operation) and drive the corresponding connection device according to a preset program. In one embodiment, the touch panel 831 can include two portions of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 880 is provided and can receive commands from the processor 880 and execute them. In addition, the touch panel 831 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 831, the input unit 830 may also include other input devices 832. In particular, other input devices 832 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.).

The display unit 840 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 840 can include a display panel 841. In one embodiment, the display panel 841 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. In one embodiment, the touch panel 831 can cover the display panel 841. When the touch panel 831 detects a touch operation thereon or nearby, the touch panel 831 transmits to the processor 880 to determine the type of the touch event, and then the processor 880 is The type of touch event provides a corresponding visual output on display panel 841. Although in FIG. 8, the touch panel 831 and the display panel 841 are two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 831 can be integrated with the display panel 841. Realize the input and output functions of the phone.

The handset 800 can also include at least one type of sensor 850, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 841 according to the brightness of the ambient light, and the proximity sensor may close the display panel 841 and/or when the mobile phone moves to the ear. Or backlight. The motion sensor may include an acceleration sensor, and the acceleration sensor can detect the magnitude of the acceleration in each direction, and the magnitude and direction of the gravity can be detected at rest, and can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching), and vibration recognition related functions (such as Pedometer, tapping, etc.; in addition, the phone can also be equipped with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors.

Audio circuitry 880, speaker 881, and microphone 882 can provide an audio interface between the user and the handset. The audio circuit 880 can transmit the converted electrical data of the received audio data to the speaker 881 for conversion to the sound signal output by the speaker 881; on the other hand, the microphone 882 converts the collected sound signal into an electrical signal by the audio circuit 880. After receiving, it is converted into audio data, and then processed by the audio data output processor 880, sent to another mobile phone via the RF circuit 810, or outputted to the memory 820 for subsequent processing.

Wi-Fi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the Wi-Fi module 880. It provides users with wireless broadband Internet access. Although FIG. 8 shows the Wi-Fi module 880, it can be understood that it does not belong to the essential configuration of the mobile phone 800 and can be omitted as needed.

The processor 880 is the control center of the handset, and connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 820, and invoking data stored in the memory 820, executing The phone's various functions and processing data, so that the overall monitoring of the phone. In one embodiment, processor 880 can include one or more processing units. In one embodiment, the processor 880 can integrate an application processor and a modem processor, wherein the application processor primarily processes an operating system, a user interface, an application, etc.; the modem processor primarily processes wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 880.

The mobile phone 800 also includes a power source 890 (such as a battery) that supplies power to various components. Preferably, the power source can be logically coupled to the processor 880 through a power management system to manage functions such as charging, discharging, and power management through the power management system.

In one embodiment, the handset 800 can also include a camera, a Bluetooth module, and the like.

Any reference to a memory, storage, database or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM), which acts as an external cache. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronization. Link (Synchlink) DRAM (SLDRAM), Memory Bus (Rambus) Direct RAM (RDRAM), Direct Memory Bus Dynamic RAM (DRDRAM), and Memory Bus Dynamic RAM (RDRAM).

The above embodiments are merely illustrative of several embodiments of the present application, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the claims. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the present application. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A multi-band antenna comprising:

a substrate, and a radiation patch, a first resonator, and a grounding metal patch disposed on the substrate, wherein

The radiation patch for radiating an antenna signal;

The first resonator is provided with a composite right and left hand structure, and is connected to the radiation patch, the first resonator is configured to receive the fed antenna signal, and realize more than one type under the excitation of the antenna signal Resonance mode; and

The grounding metal patch is spaced apart from one side of the first resonator and connected to the first resonator by a microstrip structure for providing a ground loop for the first resonator.
The multi-band antenna according to claim 1, wherein the multi-band antenna further comprises:

And a second resonator disposed on the substrate and connected to the first resonator for feeding the antenna signal to the first resonator.
The multi-band antenna according to claim 2, wherein the second resonator is a polygonal resonator, and the second resonator is juxtaposed with the first resonator on the grounded metal patch The same side.
The multi-band antenna according to claim 1, wherein the grounding metal patch is a metal layer having an asymmetric coplanar microstrip feed structure, and the metal layer is etched with a groove;

The first resonator includes a first connecting piece that extends into a groove of the metal layer and is connected to the metal layer.
The multi-band antenna according to claim 4, wherein the first resonator further comprises a second connecting piece and a plurality of interdigitating units, and the second connecting piece is disposed in parallel with the first connecting piece The plurality of interdigitated units are disposed in parallel between the first connecting piece and the second connecting piece, and any two adjacent interdigitated units are connected on different connecting pieces to form interdigitated interdigitated structures. .
The multi-band antenna according to claim 1, wherein the first resonator is configured to implement a first resonant mode and a second resonant mode, the first resonant mode being a zero-order resonant mode, The second resonant mode is a positive first order or a negative first order resonant mode.
The multi-band antenna of claim 6 wherein said second resonator is configured to implement a third resonant mode, said radiating patch being configured to implement a fourth resonant mode.
The multi-band antenna according to claim 7, wherein the first resonance mode, the second resonance mode, the third resonance mode, and the fourth resonance mode are respectively in different frequency bands.
The multi-band antenna according to claim 1, wherein said radiation patch is provided with a bent type structure.
A multi-band antenna according to claim 9, wherein said radiation patch comprises a plurality of bending points, said radiation patches forming a spaced apart U-shaped structure based on said plurality of bending points.
The multi-band antenna according to claim 1, wherein said multi-band antenna is a fifth-generation mobile communication antenna.
The multi-band antenna of claim 1 wherein said multi-band antenna is a filter antenna.
A mobile terminal, comprising: a multi-band antenna, the multi-band antenna comprising:

a substrate, and a radiation patch, a first resonator, and a grounding metal patch disposed on the substrate, wherein

The radiation patch for radiating an antenna signal;

The first resonator is provided with a composite right and left hand structure, and is connected to the radiation patch, the first resonator is configured to receive the fed antenna signal, and realize more than one type under the excitation of the antenna signal Resonance mode; and

The grounding metal patch is spaced apart from one side of the first resonator and connected to the first resonator by a microstrip structure for providing a ground loop for the first resonator.
The mobile terminal according to claim 13, wherein the multi-band antenna further comprises:

And a second resonator disposed on the substrate and connected to the first resonator for feeding the antenna signal to the first resonator.
The mobile terminal according to claim 14, wherein the second resonator is a polygonal resonator, and the second resonator is disposed in parallel with the first resonator on the grounded metal patch. side.
The mobile terminal according to claim 13, wherein the grounding metal patch is a metal layer having an asymmetric coplanar microstrip feed structure, and the metal layer is etched with a groove;

The first resonator includes a first connecting piece that extends into a groove of the metal layer and is connected to the metal layer.
The mobile terminal according to claim 16, wherein the first resonator further comprises a second connecting piece and a plurality of interdigitating units, wherein the second connecting piece is disposed opposite to the first connecting piece; The plurality of interdigitated units are disposed in parallel between the first connecting piece and the second connecting piece, and any two adjacent interdigitated units are connected on different connecting pieces to form interdigitated interdigitated structures.
The mobile terminal of claim 13, wherein the first resonator is configured to implement a first resonant mode and a second resonant mode, the first resonant mode is a zero-order resonant mode, The second resonant mode is a positive first order or a negative first order resonant mode.
The mobile terminal of claim 18, wherein the second resonator is configured to implement a third resonant mode, the radiating patch being configured to implement a fourth resonant mode.
The mobile terminal according to claim 13, wherein the radiation patch is provided with a bending type structure; the radiation patch comprises a plurality of bending points, and the radiation patch is based on the plurality of bending points Form a spaced U-shaped structure.