CN107895844A - A kind of antenna assembly construction and mobile terminal - Google Patents

Abstract

The invention provides a kind of antenna assembly construction and mobile terminal.Wherein, the antenna assembly construction includes：At least one antenna, the antenna are the pin on earphone socket；At least one antenna-matching circuit, wherein, each antenna-matching circuit is connected with an antenna respectively；Antenna feed, the antenna feed are connected with least one antenna-matching circuit.In embodiments of the present invention, the pin on earphone socket is used as antenna, carries out the transmission and/or reception of aerial signal, so then arrange antenna without the need for other space, save the space on mobile terminal.

Description

Antenna combination structure and mobile terminal

technical field

The invention relates to the field of communication technology, in particular to an antenna combination structure and a mobile terminal.

Background technique

The antenna on the mobile terminal is used to receive and/or transmit wireless signals, and is an essential structure for the mobile terminal to perform wireless communication. In order to further improve the communication quality, MIMO (Multiple-Input Multiple-Output) technology is usually used to design the antenna system at present, that is, the transmitting end and the receiving end use multiple transmitting antennas and receiving antennas respectively, so that the signal passes through the transmitting end Transmit and receive with multiple antennas on the receiving end. In MIMO systems designed using MIMO technology (such as main antenna MIMO systems, WIFI MIMO systems, etc.), in order to improve communication quality, more and more antennas are needed, such as 2*2MIMO mobile terminals need 2 antennas, 4* 4MIMO requires 4 antennas.

In the prior art, the antenna is usually mounted on the metal rear cover of the mobile terminal. As more and more antennas are required for MIMO systems, and at the same time, in order to ensure the appearance of mobile terminals, the space for arranging antennas on mobile terminals is getting less and less, so it is difficult to ensure that each mobile terminal has enough space to arrange MIMO The multiple antennas in the system limit the improvement of the communication quality of the mobile terminal.

Contents of the invention

Embodiments of the present invention provide an antenna combination structure and a mobile terminal to solve the problem in the prior art that it is difficult to ensure that antennas in a MIMO system are arranged on the mobile terminal due to limited space on the mobile terminal.

In order to solve the problems of the technologies described above, the present invention is achieved in that:

According to an aspect of the embodiments of the present invention, an antenna combination structure is provided, which is applied to a mobile terminal, including: at least one antenna, which is a pin on an earphone socket; at least one antenna matching circuit, wherein each The antenna matching circuits are respectively connected to one of the antennas; the antenna feed is connected to the at least one antenna matching circuit.

According to another aspect of the embodiments of the present invention, a mobile terminal is provided, including the above antenna combination structure.

In the embodiment of the present invention, the pins on the earphone socket are used as antennas to transmit and/or receive antenna signals, so that no additional space is needed for arranging the antennas, which saves space on the mobile terminal.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

FIG. 1 shows one of the schematic diagrams of an antenna combination structure provided by an embodiment of the present invention;

FIG. 2 shows the second schematic diagram of the antenna combination structure provided by the embodiment of the present invention;

FIG. 3 shows the third schematic diagram of the antenna combination structure provided by the embodiment of the present invention;

FIG. 4 shows a fourth schematic diagram of an antenna combination structure provided by an embodiment of the present invention;

Fig. 5 shows the fifth schematic diagram of the antenna combination structure provided by the embodiment of the present invention;

FIG. 6 shows the sixth schematic diagram of the antenna combination structure provided by the embodiment of the present invention;

FIG. 7 shows a seventh schematic diagram of an antenna combination structure provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

According to an aspect of the embodiments of the present invention, an antenna combination structure is provided, which is applied to a mobile terminal.

As shown in FIG. 1 , the combined antenna structure includes: at least one antenna, at least one antenna matching circuit 2 and at least one antenna feed 3 . Wherein, the antenna described here is the pin 1 on the earphone jack 7 .

Wherein, the antenna is used for sending and/or receiving wireless signals. The antenna matching circuit 2 is used to adjust the resonance of the antenna so that the antenna works in a required frequency band, such as making the antenna work in a low frequency band, a middle frequency band or a high frequency band. Antenna feed 3 refers to the primary radiator of the antenna, and is an important device that determines the electrical characteristics and frequency band of the antenna. In the embodiment of the present invention, the antenna feed 3 is connected to the antenna matching circuit 2, and each antenna matching circuit 2 is connected to an antenna respectively. Wherein, the antenna feed is also grounded.

In the embodiment of the present invention, the pin 1 on the earphone socket 7 is used as an antenna to transmit and/or receive antenna signals, so that no additional space is needed for arranging the antenna, which saves space on the mobile terminal.

Wherein, the pin 1 on the earphone jack 7 includes: a microphone pin (wherein, the microphone is commonly called as a microphone), a ground pin, a left channel pin and a right channel pin, and the antenna described here can be the aforementioned earphone jack 7 At least one of the pins 1 on the antenna, that is, the antenna includes: at least one of the microphone pin, the ground pin, the left audio channel pin and the right audio channel pin in the earphone socket 7.

Preferably, the antenna is at least one of a microphone pin and a ground pin. Compared with the left channel pin and the right channel pin, the microphone pin and the ground pin are closer to the edge of the earphone socket on the earphone socket 7, and are closer to the outside world, so it is more conducive to the transmission and connection of the antenna signal. / or receive.

It should be noted that when an earphone plug is inserted into the earphone socket 7, it will affect the performance of the pin 1 on the earphone socket 7 as an antenna. Therefore, when it is detected that an earphone plug is inserted on the earphone socket 7, the The algorithm controls the antenna to be turned off; when it is detected that the earphone socket 7 is not plugged with an earphone plug, the software algorithm is used to control the antenna to start. Further, in order to prevent this situation from affecting the normal operation of the antenna system, the antenna can be used as a backup antenna in the MIMO system.

Further, as shown in FIG. 2, when the antenna is a microphone pin, a left channel pin or a right channel pin, there are also connections between the antenna and the antenna matching circuit 2 connected thereto for blocking audio signals, A first isolation circuit 4 for conducting antenna signals; a second isolation circuit 5 for blocking antenna signals and conducting audio signals is also connected between the antenna and the audio integrated circuit 6 connected thereto.

Wherein, since the microphone pin, the left channel pin and the right channel pin on the earphone jack 7 are also connected with the audio integrated circuit 6 on the mobile terminal, in order to separate the audio signal and the antenna signal, the antenna (i.e. the microphone pin Pin, left channel pin or right channel pin) are connected to the corresponding antenna matching circuit 2 through the first isolation circuit 4, the first isolation circuit 4 can block the audio signal and conduct the antenna signal, thereby preventing the audio signal from Into the antenna feed 3; the antenna is also connected to the audio integrated circuit 6 through the second isolation circuit 5, the second isolation circuit 5 can block the antenna signal and conduct the audio signal, thereby preventing the antenna signal from flowing into the audio integrated circuit 6.

Preferably, as shown in FIG. 3 , the first isolation circuit 4 is a capacitor 401 , and the second isolation circuit 5 is an inductor 501 .

Wherein, the capacitor 401 mentioned here has a capacitance value greater than or equal to 50PF, which can disconnect the audio signal and conduct the antenna signal, thereby preventing the audio signal from flowing into the antenna feed 3 . The inductance 501 mentioned here has an inductance value greater than or equal to 68NH, which acts as a short circuit for the audio signal and acts as a conduction; it acts as a disconnection for the antenna signal as a high impedance, thereby preventing the antenna signal from flowing into the audio integrated circuit 6 .

This can ensure that the antenna signal flows between pin 1 and antenna feed 3 without entering the audio integrated circuit 6, and also ensures that the audio signal flows between pin 1 and the audio integrated circuit 6 without entering Antenna feed 3.

Further, the antenna described in the embodiment of the present invention is the antenna in the main antenna MIMO system and/or the antenna in the WIFI MIMO system, that is, the pin 1 on the headphone jack 7 can be used as the antenna in the main antenna MIMO system , and the pin 1 on the headphone socket 7 can be used as the antenna in the WIFI MIMO system, and a part of the pin 1 on the headphone socket 7 can be used as the antenna in the main antenna MIMO system, and a part of the pin 1 can be used as the WIFI MIMO system The use of antennas in the system can be designed according to actual needs.

Further, when at least two antennas in the antenna combination structure in the embodiment of the present invention are formed as antennas in a main antenna MIMO system or as antennas in a WIFI MIMO system, the antenna combination structure further includes: a combiner 8.

Wherein, when at least two pins 1 on the headphone socket 7 are used as the antenna in the main antenna MIMO system or the antenna in the WIFI MIMO system, each pin 1 can be controlled to work in different frequency bands, thereby increasing the antenna The bandwidth of the system, in addition, in order to reduce the space occupied by the antenna system, the same type of signal (antenna signal, WiFi signal, etc.) can share an antenna feed 3, and the combiner 8 can make antennas of different frequencies work together Work.

Specifically, when at least two antennas are used as antennas in the main antenna MIMO system, the input end of the combiner 8 is connected to the antenna feed 3 in the main antenna MIMO system, and the output ends of the combiner 8 are respectively It is connected with all the antenna matching circuits 2 connected with the antennas forming the main antenna MIMO system.

Specifically, when at least two antennas are formed as antennas in a WIFI MIMO system, the input end of the combiner 8 is connected to the antenna feed 3 in the WIFI MIMO system, and the output end of the combiner 8 is respectively connected to all It is connected with the antenna matching circuit 2 formed as an antenna connection in the WIFI MIMO system.

As shown in Figure 4, in order to use two pins in the microphone pin, the left channel pin and the right channel pin on the headphone socket 7 as the antenna in the main antenna MIMO system or the antenna in the WIFI MIMO system Schematic diagram of the structure in use, the two antenna matching circuits 2 in the figure are connected to the antenna feed 3 in the main antenna MIMO system or the antenna feed 3 in the WIFI MIMO system through a combiner 8 . As shown in Figure 5, in order to use one of the microphone pin, the left channel pin and the right channel pin and the ground pin on the earphone socket 7 as the antenna in the main antenna MIMO system or the WIFI MIMO system The structural diagram of the antenna in use, the two antenna matching circuits 2 in the figure are connected to the antenna feed 3 in the main antenna MIMO system or the antenna feed 3 in the WIFI MIMO system through a combiner 8 .

Specifically, the antenna matching circuit 2 can be connected to the output end of the combiner 8 through a 50-ohm impedance line.

Further, when the pin 1 on the earphone socket 7 is respectively formed as the antenna in the main antenna MIMO system and the antenna in the WIFI MIMO system, the combined antenna structure also includes: a first antenna feed 301 and a second antenna feed 302 .

Wherein, the first antenna feed 301 is an antenna feed in a MIMO system, and the second antenna feed 023 is an antenna feed in a WiFi system.

Wherein, the antenna matching circuit 2 connected to the antenna formed in the main antenna MIMO system is connected to the first antenna feed source 301; the antenna matching circuit 2 connected to the antenna formed in the WiFi MIMO system is connected to the second antenna feed source 302 connection.

As shown in Figure 6, in order to use two pins in the microphone pin, the left channel pin and the right channel pin on the headphone socket 7 as the antenna in the main antenna MIMO system and the WIFI MIMO system respectively Schematic diagram of the structure of the antenna in use. As shown in Figure 7, in order to use one of the microphone pin, left channel pin and right channel pin on the headphone socket 7 as the antenna in the main antenna MIMO system and use the ground pin as the WIFI MIMO Schematic diagram of the structure of the antenna in use in the system.

Further, each antenna is connected to the corresponding antenna matching circuit 2 through a PCB (Printed Circuit Board, printed circuit board) line, wherein the PCB line is arranged in a clearance area of the PCB board.

Among them, different antennas require different antenna lengths. The lower the frequency, the longer the antenna required. Therefore, in order to optimize the bandwidth of the antenna system, the pin 1 used as the antenna can be connected to the PCB wire to extend the length of the pin 1. . Wherein, the PCB line is routed on the PCB board, and is located in the clearance area of the PCB board. The length of the PCB line can be selected according to actual needs.

To sum up, in the embodiment of the present invention, the pin 1 on the earphone socket 7 is used as an antenna to transmit and/or receive antenna signals, so that no additional space is needed for arranging the antenna, saving the mobile terminal. Space. Especially for the MIMO system, using the pin 1 on the headphone socket 7 as the antenna in the MIMO system can not only reduce the space required for arranging the antenna, but also ensure the performance of the MIMO system, which is beneficial to the wireless communication quality of the mobile terminal improvement.

According to another aspect of the embodiments of the present invention, a mobile terminal is provided. The mobile terminal includes the antenna combination structure as described above.

Specifically, the mobile terminal is a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

In the mobile terminal, the pin 1 on the earphone socket 7 is used as an antenna to transmit and/or receive antenna signals, so that no additional space is needed for arranging the antenna, which saves space on the mobile terminal. Especially for the MIMO system, using the pin 1 on the headphone socket 7 as the antenna in the MIMO system can not only reduce the space required for arranging the antenna, but also ensure the performance of the MIMO system, which is beneficial to the wireless communication quality of the mobile terminal improvement.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

What has been described above is a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can also be made without departing from the principles described in the present invention. within the scope of protection of the invention.

Claims (10)

1. An antenna combination structure applied to a mobile terminal, characterized in that it comprises: at least one antenna, said antenna being a pin on an earphone jack; At least one antenna matching circuit, wherein each of the antenna matching circuits is connected to one of the antennas; An antenna feed connected to the at least one antenna matching circuit. 2 . The combined antenna structure according to claim 1 , wherein the antenna comprises: at least one of a microphone pin, a ground pin, a left audio channel pin, and a right audio channel pin in the earphone jack. 3 . 3. The combined antenna structure according to claim 1, wherein when the antenna is a microphone pin, a left channel pin or a right channel pin, the antenna and the antenna matching circuit connected thereto A first isolation circuit is connected between them; A second isolation circuit is connected between the antenna and the audio integrated circuit connected to it. 4. The combined antenna structure according to claim 3, wherein the first isolation circuit is a capacitor; the second isolation circuit is an inductor. 5 . The antenna combination structure according to claim 1 , wherein the at least one antenna is an antenna in a multiple-input multiple-output (MIMO) system and/or an antenna in a WIFI MIMO system as a main antenna. 6. The combined antenna structure according to claim 5, wherein when at least two antennas in the combined antenna structure are formed as antennas in a main antenna MIMO system or as antennas in a WIFI MIMO system, the The combined antenna structure also includes: a combiner; The input end of the combiner is connected with the antenna feed source in the main antenna MIMO system or the antenna feed source in the WIFI MIMO system; The output terminals of the combiner are respectively connected to all antenna matching circuits connected to antennas in the main antenna MIMO system, or connected to all antenna matching circuits connected to antennas in the WIFI MIMO system. 7. The combined antenna structure according to claim 5, wherein when the at least one antenna is respectively formed as an antenna in the main antenna MIMO system and an antenna in the WIFI MIMO system, the combined antenna structure further comprises: a first antenna feed and a second antenna feed; An antenna matching circuit connected to the antenna formed in the main antenna MIMO system is connected to the first antenna feed, wherein the first antenna feed is an antenna feed in the main antenna MIMO system; An antenna matching circuit formed as an antenna in the WiFi MIMO system is connected to the second antenna feed, wherein the second antenna feed is an antenna feed in the WiFi MIMO system. 8 . The combined antenna structure according to claim 1 , wherein each of the antennas is connected to the corresponding antenna matching circuit through a PCB wire, wherein the PCB wire is arranged in a clearance area of the PCB board. 9. A mobile terminal, comprising: the antenna combination structure according to any one of claims 1 to 8. 10. The mobile terminal according to claim 9, wherein the mobile terminal is a mobile phone, a tablet computer, a personal digital assistant or a vehicle-mounted computer.