Millimeter wave antenna system and mobile terminal based on LCP material
Technical field
The utility model relates to antenna technical field more particularly to a kind of millimeter wave antenna system based on LCP material and
Mobile terminal.
Background technique
The development of mobile communication technology, which is pursued, brings faster experience to user, and opposite fourth generation mobile communication technology is come
It says, traffic rate can be improved 20~100 times by the appearance of the 5th third-generation mobile communication, and key factor therein is that 5G utilizes millimeter wave
Frequency range is capable of providing broader frequency bandwidth.In mobile terminal device, realize millimetre-wave attenuator key and challenge be as
What realizes millimeter wave antenna, and millimeter wave antenna is integrated in inside terminal device.Traditionally, the antenna of terminal device is mostly
Independent design, then interconnected antenna and equipment main circuit board by board to board connector, there are all in millimeter wave frequency band for which
More problems, such as transmission line loss are excessive low with integrated level etc..In order to allow the 5th third-generation mobile communication technical application, it is necessary to solve
The problem of implementation of millimeter wave antenna in mobile terminal device.
The antenna of traditional mobile terminal equipment, is located in some position of equipment outer rim, for example, top, bottom or in
Between, certain positions on antenna and equipment main circuit board need to place board to board connector, are also required to place on simultaneous transmission line
The connector of another kind adaptation, is fastened by two kinds of connector interworkings, realizes interconnection.In general, the fastening number of connector
Limited, after repeatedly fastening, electrical property and mechanical performance etc. can gradually deteriorate, and after in addition fastening, contact engaging and separating force is also limited, when
When Complete machine system design is bad, the problems such as easily causing connective stability.
With the development of the 5th third-generation mobile communication technology, working frequency is higher and higher, especially the introducing of millimeter wave frequency band,
This traditional mutual contact mode difficulty is increasing, and the requirement for board to board connector is also very high, is unfavorable for machine system
Performance and integrated.In millimeter wave frequency band, connector can not only introduce additional loss, also be easy to appear electromagnetic leakage problem,
Electromagnetic interference is brought to other components in terminal device.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of millimeter wave antenna system based on LCP material and
The integrated level and stability of machine system can be improved in mobile terminal.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
A kind of millimeter wave antenna system based on LCP material, including antenna module, the antenna module include antenna stack,
The material of substrate layer and circuit layer, the substrate layer is LCP material, and the antenna stack and circuit layer are respectively arranged at the substrate
On the opposite two sides of layer, and the antenna stack and circuit layer are electrically connected.
Further, the antenna stack includes at least two spaced antenna element.
Further, the antenna element be Circular microstrip patch antenna, rectangular microband paste antenna, monopole antenna,
At least one of dipole antenna, Uda antenna, quasi- Uda antenna and log-periodic antenna.
It further, further include connection component, the connection component includes connector and transmission line, the transmission line
It is electrically connected respectively with the connector and circuit layer.
Further, the circuit layer includes phase-shift circuit, amplitude control circuit, frequency changer circuit and/or peripheral circuit.
Another technical solution that the utility model uses are as follows:
A kind of mobile terminal, including the millimeter wave antenna system based on LCP material.
Further, including main part, the antenna module are arranged close to the edge of the main part.
The utility model has the beneficial effects that: be different from it is traditional that antenna is individually designed, then by plate to plate connect
It connects device and antenna and other component electrical connection is realized into antenna function, the utility model uses LCP material as substrate layer, by day
Line layer and circuit layer integrate, and avoid using board to board connector, can reduce cost, reduce electromagnetic leakage, improve day
The stability of linear system system;The loss of LCP material is low, can effectively evade excess loss caused by connector;LCP material has soft
Property, it can occupy little space, develop conducive to mobile terminal towards lightening direction with bending forming, convenient for being integrated with other component.This
The antenna system of utility model, structure is simple, and antenna performance is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mobile terminal of the utility model embodiment one;
Fig. 2 is the structural schematic diagram of the millimeter wave antenna system of the utility model embodiment one;
Fig. 3 is that the millimeter wave antenna system of the utility model embodiment one is directed toward 50 degree of directional diagram;
Fig. 4 is the directional diagram that the millimeter wave antenna system of the utility model embodiment one is directed toward -30 degree;
Fig. 5 is the structural schematic diagram of the mobile terminal of the utility model embodiment two;
Fig. 6 is the structural schematic diagram of the millimeter wave antenna system of the utility model embodiment two;
Fig. 7 is the structural schematic diagram of the mobile terminal of the utility model embodiment three;
Fig. 8 is the structural schematic diagram of the millimeter wave antenna system of the utility model embodiment three.
Label declaration:
1, millimeter wave antenna system;2, main part;11, substrate layer;12, circuit layer;13, antenna element;14, connector;
15, transmission line.
Specific embodiment
For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is: substrate layer uses LCP material, and antenna stack and circuit layer are integrated in one
It rises, the antenna system of formation, integrated level is high, and stability is good and is lost small.
Please refer to Fig. 1 to Fig. 8, a kind of millimeter wave antenna system 1 based on LCP material, including antenna module, the antenna
Component includes antenna stack, substrate layer 11 and circuit layer 12, and the material of the substrate layer 11 is LCP material, the antenna stack and electricity
Road floor 12 is respectively arranged on the opposite two sides of the substrate layer 11, and the antenna stack and circuit layer 12 are electrically connected.
As can be seen from the above description, the utility model has the beneficial effects that: be different from it is traditional that antenna is individually designed, so
Antenna and other component electrical connection are realized that antenna function, the utility model use LCP material by board to board connector afterwards
As substrate layer, antenna stack and circuit layer are integrated, avoided using board to board connector, cost can be reduced, is reduced
Electromagnetic leakage improves the stability of antenna system;The loss of LCP material is low, can effectively evade and additionally damage caused by connector
Consumption;LCP material has flexibility, convenient for integrating with other component, can be occupied little space with bending forming.
Further, the antenna stack includes at least two spaced antenna element 13.
Further, the antenna element be Circular microstrip patch antenna, rectangular microband paste antenna, monopole antenna,
At least one of dipole antenna, Uda antenna, quasi- Uda antenna and log-periodic antenna.
Seen from the above description, antenna element can be a form of antenna, be also possible to the antenna of diversified forms
Combination.
It further, further include connection component, the connection component includes connector 14 and transmission line 15, the transmission
Route 15 is electrically connected with the connector 14 and circuit layer 12 respectively.
Further, the circuit layer 12 includes phase-shift circuit, amplitude control circuit, frequency changer circuit and/or peripheral circuit.
The utility model relates to another technical solution are as follows:
A kind of mobile terminal, including the millimeter wave antenna system 1 based on LCP material.
Further, including main part 2, the antenna module are arranged close to the edge of the main part 2.
Embodiment one
Please refer to Fig. 1 and Fig. 2, the embodiments of the present invention one are as follows:
A kind of mobile terminal as shown in Figure 1, including main part 2 and based on the millimeter wave antenna system 1 of LCP material, institute
Stating millimeter wave antenna system 1 includes antenna module and connection component, and the antenna module is set close to the edge of the main part 2
It sets, the pcb board electrical connection of the connection component and mobile terminal.In the present embodiment, a length of the antenna module close to main part 2
Side setting.
As shown in Fig. 2, the antenna module includes antenna stack, substrate layer 11 and circuit layer 12, the material of the substrate layer 11
Matter is LCP material, and the antenna stack and circuit layer 12 are respectively arranged on the opposite two sides of the substrate layer 11, and the day
Line layer and circuit layer 12 are electrically connected, specifically, metallization VIA can be set on substrate layer 11, it will by metallization VIA
Antenna stack and circuit layer 12 are electrically connected, naturally it is also possible to motivate day using other connection types, such as coupling feed way
Line layer.The antenna stack includes at least two spaced antenna element 13, and the antenna element 13 is rectangular microstrip patch
Chip antenna.In the present embodiment, the number of antenna element 13 is eight.Single polarization radiation characteristic may be implemented in antenna system, can also
To realize dual polarised radiation characteristic.The circuit layer 12 includes phase-shift circuit, amplitude control circuit, frequency changer circuit and/or periphery
Circuit etc., phase-shift circuit and amplitude control circuit can adjust the amplitude and phase of each antenna element 13, realize day
The Wave beam forming and scanning function of linear array;The lower intermediate-freuqncy signal of frequency can be transformed to millimeter wave frequency band by frequency changer circuit,
Realize that antenna works in millimeter wave frequency band.Above-mentioned phase-shift circuit, amplitude control circuit, frequency changer circuit are preferably realized in a circuit
It in chip, can also be implemented separately, then be placed on LCP material and interconnect.The number of circuit chip, which can according to need, to be set
It sets, the number of the circuit chip of the present embodiment is two.The connection component includes connector 14 and transmission line 15, the biography
Defeated route 15 is electrically connected with the connector 14 and circuit layer 12 respectively.The number of connector 14, which can according to need, to be set
It sets, the number of the connector 14 of the present embodiment is two.
The present embodiment gives the radiation characteristic of millimeter wave antenna system 1 by emulating data, when antenna system work,
By adjusting the amplitude and phase for motivating each antenna element 13, the antenna pattern of available high-gain, and gain are maximum
The region for needing to cover is directed toward in direction, as shown in figure 3, realizing the antenna pattern for being directed toward 50 degree of directions.Day is motivated when changing
After the amplitude and phase of line unit 13, and other directions can be directed toward, as shown in figure 4, antenna radiation pattern is directed toward -30 degree directions,
It can be seen that the millimeter wave antenna system 1 of the present embodiment has Wave beam forming and scanning function.
Embodiment two
Referring to figure 5. and Fig. 6, the embodiments of the present invention two and embodiment one the difference is that:
The number of antenna element 13 is four, and the number of circuit chip is one, and the number of connector 14 is one, antenna
Component is arranged close to a short side of main part 2, and the difference of the shape of the transmission line 15 in connection component and embodiment one.
Embodiment three
Please refer to Fig. 7 and Fig. 8, the embodiments of the present invention three and embodiment one the difference is that:
The number of antenna element 13 is four, and antenna element 13 is Circular microstrip patch antenna.The number of circuit chip is
One, the number of connector 14 is one, and antenna module is arranged close to a short side of main part 2, and the biography in connection component
The shape of defeated route 15 and the difference of embodiment one.
The antenna element of the utility model can be not limited to rectangular microband paste antenna or Circular microstrip patch with flexible choice
Antenna, including but not limited to monopole antenna, dipole antenna, Uda antenna, quasi- Uda antenna and logarithm period
Antenna etc. can also use the combination of some of antennas, such as the group of rectangular microband paste antenna and quasi- Uda antenna
It closes.The antenna element used, both may be implemented single polarization radiation characteristic, and dual polarised radiation characteristic also may be implemented, specific choice
Which kind of radiation characteristic can be based on application demand, independent and flexible selection.
The shape of transmission line in connection component can be according to the concrete shape and phase of other component inside mobile terminal
Positional relationship is designed, cabling can be carried out along a plane, the space that also can use short transverse carries out cabling.
In conclusion a kind of millimeter wave antenna system and mobile terminal based on LCP material provided by the utility model, day
Linear system system uses integrated setting, can reduce transmission loss, improves the overall performance of antenna system, is conducive to mobile terminal towards light
Thinning direction is developed.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is also included in the patent protection scope of the utility model.