CN110891116B - Communication terminal with composite antenna - Google Patents
Communication terminal with composite antenna Download PDFInfo
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- CN110891116B CN110891116B CN201911205473.4A CN201911205473A CN110891116B CN 110891116 B CN110891116 B CN 110891116B CN 201911205473 A CN201911205473 A CN 201911205473A CN 110891116 B CN110891116 B CN 110891116B
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- communication terminal
- circuit board
- antenna
- sheet
- main body
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
- H04M1/236—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof including keys on side or rear faces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Abstract
The application discloses a communication terminal with a composite antenna. The communication terminal includes: the main circuit board is provided with an antenna elastic sheet; the side key is arranged in a side area of the communication terminal; the back metal sheet is arranged in the side area of the communication terminal and comprises a main body sheet and a conductive connecting part, the side key is located on one side of the main body sheet, the conductive connecting part is located on the other side of the main body sheet, and the conductive connecting part is in contact with the antenna elastic sheet. The back sheet metal of the multiplexing side button of this application is as communication terminal's antenna, for example Wi-Fi GPS antenna, can reduce cost and design complexity to, multiplexing back sheet metal as antenna radiator sets up in communication terminal's side region, is perpendicular setting with main circuit board, more is favorable to the radiation and the receipt of signal, thereby can be favorable to realizing better antenna performance.
Description
Technical Field
The application relates to the field of communication, in particular to the technical field of antennas of electronic equipment, and particularly relates to a communication terminal with a composite antenna.
Background
Wi-Fi (Wireless Fidelity, Wireless local area network based on IEEE 802.11b standard) is a technology that allows electronic devices to connect to a Wireless Local Area Network (WLAN), and is increasingly used. The electronic equipment is used for transmitting and receiving wireless signals through the Wi-Fi antenna, and the signal transmission performance is directly influenced by the performance of the Wi-Fi antenna.
The importance of a GPS (Global Positioning System) antenna for Positioning and navigation by receiving satellite signals is self-evident.
With the rapid development and wide-range popularization of various electronic devices such as smart phones and tablet computers and the increasing demand of users for the electronic devices, data transmission and exchange, such as internet surfing, screen transmission, file copying and the like, are realized through wireless Wi-Fi, positioning and navigation are realized through a GPS antenna, and the wireless Wi-Fi type electronic device becomes an inevitable basic function configuration of the electronic devices. Compared with a wired mode, the wireless Wi-Fi has the characteristics of convenience, rapidness, good mobility and the like, and becomes a non-choice of mobile portable equipment along with the continuous improvement of transmission rate.
At present, a conventional Wi-Fi or GPS antenna is usually designed as a single antenna, that is, one or two independent FPC (Flexible Printed Circuit Board) antennas or LDS (Laser Direct structuring) antennas are used for implementation. Specifically, the antenna may be fixed to a main circuit board of the communication terminal by using a bracket, that is, the antenna includes a plastic bracket and a metal sheet (radiator), the metal sheet and the plastic bracket are fixed by using a hot-melt method, the plastic may be ABS (Acrylonitrile Butadiene Styrene) plastic or PC (polycarbonate) plastic, and the metal sheet may be beryllium copper, phosphor copper, or a stainless steel sheet. Or, the antenna can also be fixed on the FPC of the communication terminal in an attaching manner, that is, the antenna is provided with a metal sheet as a radiator, and is not provided with a plastic support, the metal sheet is directly attached on the FPC of the communication terminal, and the metal sheet and the FPC can be fixed in a hot melting manner or a back adhesive attaching manner.
No matter which mode is adopted, the single antenna is not only high in cost, but also needs the structural specific design to cooperate with FPC laminating, or the installation of LDS support, and the design is comparatively complicated.
Disclosure of Invention
In view of this, the present application provides a communication terminal with a composite antenna, so as to solve the problems of high cost and complicated design of a Wi-Fi/GPS antenna in the prior art.
The application provides a communication terminal with compound antenna includes:
the main circuit board is provided with an antenna elastic sheet;
the side key is arranged in a side area of the communication terminal;
the back metal sheet is arranged in the side area of the communication terminal and comprises a main body sheet and a conductive connecting part, the side key is located on one side of the main body sheet, the conductive connecting part is located on the other side of the main body sheet, and the conductive connecting part is in contact with the antenna elastic sheet.
The conductive connecting part is a sheet structural part and is perpendicular to the main body sheet of the back metal sheet.
The antenna elastic sheet comprises a first elastic sheet and a second elastic sheet which are arranged at intervals, the first elastic sheet is used for connecting an antenna feed point on the main circuit board, the second elastic sheet is used for connecting a grounding point on the main circuit board, the first conductive sheet is in contact with the first elastic sheet, and the second conductive sheet is in contact with the second elastic sheet.
The distance between the first elastic sheet and the second elastic sheet is between 1 and 2 millimeters.
Wherein the main material of the conductive connecting part and the body sheet is stainless steel.
The main body sheet of the back metal sheet is arranged in a strip shape, and the length of the main body sheet is 20-25 mm.
Wherein, electrically conductive connecting portion with the main part piece is the integrated into one piece structure.
The communication terminal further comprises a sub circuit board connected with the side key, the sub circuit board is connected with the main circuit board, the sub circuit board is connected with the main body piece in an insulating mode, a notch is formed in one side, facing the conductive connecting portion, of the sub circuit board, the free end of the conductive connecting portion is located in the orthographic projection of the notch, and the free end of the conductive connecting portion and the side wall of the notch are arranged at intervals.
The conductive connecting part and the sub circuit board are positioned on the same plane.
And a clearance area is arranged between the main circuit board and the main body sheet of the back metal sheet.
The above-mentioned communication terminal with compound antenna of this application bears the weight of the back sheetmetal of side button through the design and is provided with the electrically conductive connecting part that extends towards main circuit board from the body piece, this electrically conductive connecting part and the contact of the antenna shell fragment on the main circuit board, and the back sheetmetal of multiplexing side button from this is as communication terminal's antenna, for example Wi-Fi GPS antenna, need not the independent design antenna to can reduce cost, reduce the design complexity. In addition, the back metal sheet which is reused as the antenna radiator is arranged in the side edge area of the communication terminal and is perpendicular to the main circuit board, so that the radiation and the receiving of signals are facilitated, and the better antenna performance can be realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a partial structural schematic view of a communication terminal not equipped with a main circuit board according to an embodiment of the present application;
fig. 2 is a partial structural schematic diagram of a communication terminal equipped with a main circuit board according to an embodiment of the present application;
FIGS. 3-6 are schematic structural diagrams of a back metal sheet according to an embodiment of the present application at different viewing angles;
fig. 7 is a partial cross-sectional view of a daughter circuit board according to an embodiment of the present application.
Detailed Description
An existing communication terminal is represented by a smart phone, a Wi-Fi antenna and a GPS antenna of the existing communication terminal are generally designed by a single antenna, for example, one or two independent FPC antennas or LDS antennas are used for realizing the antenna, the FPC antennas are used for installing the antenna on the FPC of the smart phone, the LDS antennas are used for controlling the movement of laser according to the track of a conductive pattern by using a predetermined instruction, projecting the laser onto a molded three-dimensional plastic device and preparing a circuit pattern, and in brief, a metal antenna with a predetermined pattern is directly formed on an antenna bracket by using a laser technology. In both the FPC antenna and the LDS antenna, a bracket is generally required, and a metal antenna with a predetermined pattern is separately provided, which is costly, and it is important that a structural specific design is also required to match with the mounting of the FPC or LDS bracket, which results in a complicated design.
In order to solve the problem, in the embodiment of the present application, other conductive elements of the communication terminal are multiplexed as an antenna, for example, a Wi-Fi antenna or a GPS antenna, and compared with an existing antenna, the conductive element multiplexed as the antenna is originally a structure of the communication terminal, so that cost reduction is facilitated.
Based on this concept, the embodiments of the present application are rooted in the structural design of a communication terminal, from which a conductive element to be multiplexed as an antenna is then determined. The structural design of the communication terminal is described below.
A communication terminal represented by a smart phone generally includes a communication body, a display screen and a plurality of keys, the display screen is disposed on the communication body, and the keys are disposed in a side area of the display screen, so that the keys can be called side keys. These side keys are generally disposed on the upper portion of the smart phone, and generally include a volume up key, a volume down key, a one-key mute key, and a display screen on/off key, etc. according to their respective functions, the display screen on/off key may also be used to turn off and restart the communication terminal. The side keys are connected to a main Circuit Board of the smart phone through a corresponding Flexible Printed Circuit Board (FPC), for example, for convenience of distinguishing, the Printed Circuit Board may be referred to as a main Circuit Board, and the Flexible Circuit Board may be referred to as a sub Circuit Board. By pressing these side keys, the sub-circuit board generates a control command and transmits the control command to the main circuit board of the communication terminal. Behind the side button, communication terminal usually can set up a back of the body steel piece for accept the pressure when the user pressed the side button, in order to avoid causing the damage to communication terminal's such as sub circuit board internal components.
Because the side button is arranged along communication terminal's side, in order to be adapted to the inside components and parts of side region and arrange and do not additionally increase the size of side frame as far as possible, the shape of back of the body steel carries out the adaptability design according to arranging of each components and parts of smart mobile phone side region, for example it is the strip plate body structure that extends along the side usually, the strip design is favorable to adapting to complicated direction of arranging, the plate body design makes the thickness of back of the body steel less, the space that occupies is less.
It should be understood that the communication terminal described throughout the present application is not limited to a smart phone, but includes, but is not limited to, a mobile terminal with side keys, such as a PDA (Personal Digital Assistant) or a tablet computer, and a wearable device with side keys, which is worn on limbs or embedded in clothes, jewelry, or accessories.
The back steel sheet is a strip-shaped metal piece and has conductivity, and the back steel sheet is designed at the side edge of the communication terminal, so that signal radiation and receiving are facilitated.
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The following embodiments and their technical features may be combined with each other without conflict.
Referring to fig. 1 and 2, the communication terminal 10 includes a side key 11, a back metal sheet 12, and a main circuit board 13.
The side keys 11 are disposed in a side area of the communication terminal 10, for example, on the left and right sides of a display screen of the communication terminal 10. The side key 11 may be disposed on the upper portion of the communication terminal 10 in the gravity direction, and includes, but is not limited to, a volume up key, a volume down key, a one-touch mute key, and a display on/off key. These side keys 11 are connected to a main circuit board 13 of the communication terminal 10 through a corresponding sub circuit board 14 (see fig. 3 to 6), where the sub circuit board 14 may be an FPC and may be regarded as a circuit board dedicated to the side keys 11, and is connected to the side keys 11 through a side key circuit, and is also connected to the main circuit board 13 of the communication terminal 10, and may be used to convert operations of pressing these side keys 11 into electrical signals or data signals in other required forms according to a certain rule, and then transmit the electrical signals or data signals to the main circuit board 13 of the communication terminal 10 through wiring inside the main circuit board, so as to meet the requirements of identification, generation, transmission, processing, storage, display, recording, control, and the like of relevant user operation instructions.
The back metal sheet 12 is also disposed in a side region of the communication terminal 10, specifically behind the side key 11, i.e., on a side of the side key 11 facing away from the user-depressible surface. One of the back metal sheets 12 is used to receive the pressure when the user presses the side key 11, so as to avoid damaging the internal components of the communication terminal 10, such as the sub circuit board 14.
As shown in fig. 3 to 6, the back metal sheet 12 includes a main body sheet 121 and a conductive connecting portion 122, the side key 11 is located on one side of the main body sheet 121, and the conductive connecting portion 122 is located on the other side of the main body sheet 121. In order to adapt to the arrangement of the components of the communication terminal 10 in the side area and to increase the size of the side frame as little as possible, the shape of the body sheet 121 is adaptively designed according to the arrangement of the components in the side area, for example, as shown in fig. 3 to 6, the body sheet 121 is a strip-shaped plate structure extending along the side edge, the strip-shaped design is favorable for adapting to a complex arrangement direction, and the plate design makes the thickness of the body sheet 121 smaller and the occupied space smaller.
In a state where the display screen of the communication terminal 10 faces a user, the side key 11 is disposed outside the main body sheet 121 and is exposed through a key notch pre-opened in the housing of the communication terminal 10, so as to facilitate a user's pressing operation, and the conductive connecting portion 122 is located inside the main body sheet 121 and extends toward the inside of the communication terminal 10.
The main circuit board 13 may be regarded as a main board of the communication terminal 10, and includes a baseband portion, a radio frequency portion, and other portions, where the baseband portion includes a baseband chip, a power management chip, and the like, the radio frequency portion includes a radio frequency processor, a radio frequency power amplifier module, and the like, and is responsible for transmitting and receiving signals, and the other portions include a CPU, a memory, various controllers, and the like, and interfaces of components such as a microphone, an earpiece, a speaker, a camera, a display screen, and the like. In the radio frequency part, the main circuit board 13 is provided with an antenna spring 131 for realizing signal reception and transmission.
In the embodiment of the present application, as shown in fig. 3 to fig. 6, the conductive connecting portion 122 of the back metal sheet 12 is in contact with the antenna dome 131. Based on this, the main body piece 121 of the back metal piece 12 can be electrically conducted with the main circuit board 13 through the conductive connecting portion 122 and the antenna elastic piece 131, that is, an electrical conduction path can be realized between the main body piece 121 of the back metal piece 12 and the main circuit board 13, an electrical signal can be transmitted between the main body piece 121 and the main circuit board 13, and the main body piece 121 can be used as a signal radiator, so that the embodiment of the present application multiplexes the main body piece 121 of the back metal piece 12 as an antenna, such as a Wi-Fi antenna or a GPS antenna.
Compared with the prior art, the main body piece 121 of the back metal piece 12 can be regarded as an original component of the traditional communication terminal, namely, the back steel piece, in the embodiment of the present application, the conductive connecting portion 122 is provided, and the conductive connecting portion 122 is only a conductive element for connecting the antenna elastic piece 131 of the main circuit board 13, which does not affect the position and the main body design of the back metal piece 12, and has a low cost, so that the embodiment of the present application does not need to separately design a Wi-Fi antenna or a GPS antenna, thereby reducing the cost, and does not need to consider a specific installation structure design which the Wi-Fi antenna or the GPS antenna needs to face, thereby reducing the design complexity, in addition, the main body piece 121 of the back metal piece 12 reused as an antenna radiator is provided in a side area of the communication terminal 10, and the main body piece 121 of the back metal piece 12 is perpendicular to the main circuit board 13, this is more advantageous for the radiation and reception of signals, and thus can be advantageous for achieving better antenna performance.
On the other hand, to avoid the user pressing the side key 11 by mistake when holding the communication terminal 10, the side key 11 is generally disposed on the upper portion of the communication terminal 10, and the lower portion of the communication terminal 10 is held by the user's palm, the back metal sheet 12 that is multiplexed as an antenna is also disposed on the upper portion of the communication terminal 10 because of being disposed adjacent to the side key 11, and is further away from the human hand, so that the signal radiation passing through the back metal sheet 12 is shielded by the human hand to be reduced, the loss of the antenna radiation is reduced, and the improvement of the antenna performance is facilitated as a whole.
In order to ensure the radiation performance of the antenna, it is necessary to ensure that the antenna has a certain size, and the length of the body piece 121 as the radiator may be between 20 and 25 mm. In addition, the main body piece 121 of the back metal piece 12 should not only be far away from the metal components inside the communication terminal 10, but also isolate the irrelevant components such as the battery, the oscillator, the shielding case, the camera, and the like, so as to leave a clean space for the hot spot radiation area, thereby ensuring the omnidirectional communication effect of the antenna. On the premise of ensuring that the components inside the communication terminal 10 are reasonably assembled and the antenna radiation meets the design requirements, the size of the clearance area should be as small as possible, for example, the width of the clearance area is 3 mm and the length of the clearance area is 25 mm, which is beneficial to reducing the size of the frame of the communication terminal 10 as much as possible.
Further, in order to ensure the signal transmission performance of the antenna, the back metal sheet 12 (including the conductive connection portion 122) may be made of a material having good conductivity and corrosion resistance. For the design in which the conductive connecting portion 122 and the main body piece 121 are of an integrally molded structure, the material of the conductive connecting portion 122 and the material of the back metal piece 12 are the same.
In one embodiment, the material of the conductive connection portion 122 may be a metal material, including but not limited to copper, molybdenum, nickel, palladium, cobalt, tungsten, rhodium, titanium, chromium, gold, silver, platinum, etc., and may be stainless steel. Of course, in order to further improve the conductivity, the conductive layer 121 may adopt a multilayer metal stacked structure, such as a three-layer metal structure of molybdenum, aluminum, and molybdenum, or a three-layer metal structure of nickel, copper, and nickel, a three-layer metal structure of molybdenum, copper, and molybdenum, or a three-layer metal structure of nickel, aluminum, and nickel. Through setting up the metal conductive structure of three-layer, not only can improve the electric conductive property of electrically conductive connecting portion 122, also can improve its corrosion resistance moreover.
The embodiment of the present application may employ a film forming process, such as sputtering, Chemical Vapor Deposition (CVD) process or PVD (Physical Vapor Deposition) process, to prepare the back metal sheet 12 in a planar arrangement, and then form the finally required conductive connection portion 122 and the main body sheet 121 by a stamping process. Of course, the process of making the back metal sheet 12 should be determined based on the material used.
In the communication terminal 10, the sub circuit board 14 is used as a circuit board dedicated for the side key 11, and is disposed adjacent to the side key 11, and the back metal sheet 12 is also adjacent to the side key 11, and it is particularly important that the back metal sheet 12 and the sub circuit board 14 are both located on the same side of the side key 11, and the conductive connecting portion 122 of the back metal sheet 12 extends toward the inner side of the communication terminal 10, so that the layout of the conductive connecting portion 122 of the back metal sheet 12 and the sub circuit board 14 is necessary to be designed in the embodiment of the present application, so as to be suitable for reasonable arrangement of various components inside the communication terminal 10.
As shown in fig. 3 to fig. 6, the sub-circuit board 14 is a strip-shaped board structure, which is not only beneficial to adapting to a complicated arrangement direction, but also has a small thickness and occupies a small space. The upper end of the sub circuit board 14 is connected to the main body piece 121 of the back metal piece 12, but the connection is only used to fix the sub circuit board 14 to the back metal piece 12 to achieve the mounting and positioning of the sub circuit board 14, and the sub circuit board 14 is insulated from the main body piece 121.
A notch is provided on a side of the sub circuit board 14 facing the main body sheet 121. In the projection direction perpendicular to the sub circuit board 14, a part of the conductive connection portion 122 is located in the notch, specifically, if one end of the conductive connection portion 122 connected to the main body sheet 121 is a fixed end and the other end is a free end, a part of the free end of the conductive connection portion 122 is located in the notch. Of course, since the conductive connection portion 122 is a conductive element, the free end of the conductive connection portion 122 is spaced apart from the sidewall of the notch, so that there is no contact between the conductive connection portion 122 and the sub circuit board 14, and the two are insulated from each other.
In view of the fact that the daughter circuit board 14 is a plate-shaped plate structure, the conductive connection portion 122 may be a plate-shaped structure and may be disposed perpendicular to the main body sheet 121 of the back metal sheet 12, so that the conductive connection portion 122 and the daughter circuit board 14 may be located on the same plane, and when the two are assembled inside the communication terminal 10, the thickness occupied by the two is still the thickness occupied by the daughter circuit board 14, and the thickness is not increased.
In addition to the signal tracks, the daughter circuit board 14 is laid with as few as possible sheet-like conductive layers, for example no or few copper layers, in order to avoid influencing the antenna radiation. Based on this, in an embodiment, the sub-circuit board 14 may adopt a three-layer conductive structure design, one layer is a layer where the attached component is located, the other layer is a wiring layer, and the other layer is a Ground (GND) of the electric wire, wherein an insulating layer is disposed between any two adjacent layers.
Fig. 7 is a partial cross-sectional view of a sub-circuit board according to an embodiment of the present invention, referring to fig. 7, the sub-circuit board 14 includes a first insulating layer 141, a wire grounding terminal 142, a second insulating layer 143, a wiring layer 144, a third insulating layer 145, and an attached component 146. The wire grounding end 142 may be regarded as a first layer of conductive structure, the wire grounding end 142 includes a plurality of grounding pins of the sub-circuit board 14, the second insulating layer 143 covers the wire grounding end 142, the routing layer 144 is disposed on the second insulating layer 143 and may be regarded as a second layer of conductive structure, the routing layer 144 includes a plurality of traces of the sub-circuit board 14, the third insulating layer 145 is disposed on the second insulating layer 143 and covers the routing layer 144, the attached component 146 is disposed on the third insulating layer 145 and may be regarded as a third layer of conductive structure, the specific type of the attached component 146 may refer to the prior art, and the attached component may be Mounted on the third insulating layer 145 by using SMT (Surface Mounted Technology). It can be seen that the sub-circuit board 14 is not laid with a sheet or planar conductive structure layer, which is beneficial to avoid affecting the antenna radiation.
The insulating layer covering each conductive structure, such as the second insulating layer 143, may be made of silicon oxide (SiO)x) Or the second insulating layer 143 includes a silicon oxynitride layer and a silicon nitride layer covering the first conductive layer in this order, for example, SiO2(silicon dioxide) layer and Si3N4The (silicon nitride) layer further improves the wear resistance and the insulating property of the second insulating layer 143. It should be understood that the material and the manufacturing process of the second insulating layer 143 and other insulating layers may be the same, and the manufacturing process thereof may refer to the prior art and will not be described herein.
For the communication terminal 10 shown in fig. 1 and 2, on the radio frequency circuit, the GPS channel and the Wi-Fi channel on the main circuit board 13 are combined into one channel by the radio frequency device, the channel is connected to the GPS/Wi-Fi antenna feed point spring piece by the antenna feed line, and the GPS/Wi-Fi antenna is also provided with a ground point. That is to say, as shown in fig. 3 to fig. 6, the antenna elastic sheet 131 of the main circuit board 13 includes a first elastic sheet 131a and a second elastic sheet 131b that are arranged at intervals, the first elastic sheet 131a is used for connecting an antenna feed point on the main circuit board 13, and the second elastic sheet 131b is used for connecting a ground point on the main circuit board 13.
For the structural design of the antenna elastic sheet 131, the conductive connection portion 122 is correspondingly provided with two conductive sheets, namely a first conductive sheet 122a and a second conductive sheet 122b, the first conductive sheet 122a contacts with the first elastic sheet 131a, and the second conductive sheet 122b contacts with the second elastic sheet 131 b. In order to avoid the interference of the electrical signals, the distance between the first elastic sheet 131a and the second elastic sheet 131b is between 1 and 2 mm, and correspondingly, the distance between the first conductive sheet 122a and the second conductive sheet 122b is at least between 1 and 2 mm.
A double-L-shaped antenna matching circuit is arranged on the antenna feeder of the communication terminal 10 near the antenna spring 131, and the design of the GPS/Wi-Fi double-resonance antenna can be realized by debugging the matching network, that is, the double resonance required by the GPS/Wi-Fi antenna is realized by impedance debugging of the matching network.
Although the application has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. This application is intended to embrace all such modifications and variations and is limited only by the scope of the appended claims. In particular regard to the various functions performed by the above described components, the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the specification.
That is, the above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, such as mutual combination of technical features between various embodiments, or direct or indirect application to other related technical fields, are included in the scope of the present application.
In addition, in the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be considered as limiting the present application. In addition, structural elements having the same or similar characteristics may be identified by the same or different reference numerals. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The previous description is provided to enable any person skilled in the art to make and use the present application. In the foregoing description, various details have been set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Claims (8)
1. A communication terminal having a composite antenna, comprising:
the main circuit board is provided with an antenna elastic sheet;
the side key is arranged in the side area of the communication terminal and arranged at the upper part of the communication terminal;
the back metal piece, set up in communication terminal's side is regional, just the back metal piece with the side button is adjacent to be set up, the back metal piece includes main body piece and electrically conductive connecting portion, the main body piece with be provided with the clearance area between the main circuit board, the side button is located one side of main body piece, electrically conductive connecting portion are located the opposite side of main body piece, electrically conductive connecting portion with the contact of antenna shell fragment, so that the main body piece is as the antenna, electrically conductive connecting portion be sheet structure, and with the main body piece of back metal piece sets up perpendicularly.
2. The communication terminal according to claim 1, wherein the conductive connecting portion includes a first conductive plate and a second conductive plate, the antenna spring plate includes a first spring plate and a second spring plate arranged at an interval, the first spring plate is used for connecting an antenna feed point on the main circuit board, the second spring plate is used for connecting a ground point on the main circuit board, the first conductive plate is in contact with the first spring plate, and the second conductive plate is in contact with the second spring plate.
3. The communication terminal according to claim 2, wherein the distance between the first resilient piece and the second resilient piece is between 1 and 2 mm.
4. The communication terminal according to claim 2, wherein a main material of the conductive connecting portion and the body sheet is stainless steel.
5. The communication terminal as claimed in claim 1, wherein the main body sheet of the back metal sheet is arranged in a strip shape with a length of 20-25 mm.
6. The communication terminal as claimed in any one of claims 1 to 5, wherein the conductive connecting portion and the body piece are of an integrally molded structure.
7. The communication terminal according to claim 1, further comprising a sub circuit board connected to the side key, wherein the sub circuit board is connected to the main circuit board, the sub circuit board is connected to the main body sheet in an insulated manner, a notch is formed on a side of the sub circuit board facing the conductive connecting portion, a free end of the conductive connecting portion is located in the notch, and the free end of the conductive connecting portion is spaced from a side wall of the notch.
8. The communication terminal according to claim 7, wherein the conductive connection portion is located on the same plane as the sub circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205473.4A CN110891116B (en) | 2019-11-29 | 2019-11-29 | Communication terminal with composite antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205473.4A CN110891116B (en) | 2019-11-29 | 2019-11-29 | Communication terminal with composite antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110891116A CN110891116A (en) | 2020-03-17 |
| CN110891116B true CN110891116B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911205473.4A Active CN110891116B (en) | 2019-11-29 | 2019-11-29 | Communication terminal with composite antenna |
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| Country | Link |
|---|---|
| CN (1) | CN110891116B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540717B (en) * | 2020-12-11 | 2022-05-31 | 维沃移动通信有限公司 | Touch method, device and storage medium |
| CN113178695B (en) * | 2021-04-12 | 2023-01-17 | 维沃移动通信有限公司 | Electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932219A2 (en) * | 1998-01-21 | 1999-07-28 | Lk-Products Oy | Planar antenna |
| CN202713411U (en) * | 2012-08-23 | 2013-01-30 | 广东欧珀移动通信有限公司 | Antenna device of mobile phone side buttons |
| CN208337631U (en) * | 2018-05-29 | 2019-01-04 | 华硕电脑股份有限公司 | Wireless communication device |
-
2019
- 2019-11-29 CN CN201911205473.4A patent/CN110891116B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932219A2 (en) * | 1998-01-21 | 1999-07-28 | Lk-Products Oy | Planar antenna |
| CN202713411U (en) * | 2012-08-23 | 2013-01-30 | 广东欧珀移动通信有限公司 | Antenna device of mobile phone side buttons |
| CN208337631U (en) * | 2018-05-29 | 2019-01-04 | 华硕电脑股份有限公司 | Wireless communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110891116A (en) | 2020-03-17 |
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