WO2020177669A1 - 天线结构及通信终端 - Google Patents
天线结构及通信终端 Download PDFInfo
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- WO2020177669A1 WO2020177669A1 PCT/CN2020/077450 CN2020077450W WO2020177669A1 WO 2020177669 A1 WO2020177669 A1 WO 2020177669A1 CN 2020077450 W CN2020077450 W CN 2020077450W WO 2020177669 A1 WO2020177669 A1 WO 2020177669A1
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- antenna
- antenna radiator
- access point
- radiator
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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
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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
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Definitions
- the present disclosure relates to the field of communication technology, and in particular to an antenna structure and a communication terminal.
- the communication terminal needs to be equipped with an antenna, and with the rapid replacement of the communication terminal, more requirements are put forward on the design of the antenna, such as position and size changes.
- the efficiency of the intermediate frequency or high frequency of the antenna is low.
- the embodiments of the present disclosure provide an antenna structure and a communication terminal to solve the problem of low efficiency of the intermediate frequency or high frequency of the antenna of the communication terminal.
- embodiments of the present disclosure provide an antenna structure, including: a first antenna radiator, a second antenna radiator, a matching network, a tuning circuit, an inductor, and a signal source;
- the second end of the first antenna radiator and the second end of the second antenna radiator are coupled through a slot, the first end of the first antenna radiator is grounded, and the second end of the second antenna radiator is grounded.
- the first end is grounded;
- the first end of the matching network is connected to a feeding point, and the second end of the matching network is connected to the first end of the signal source, wherein the feeding point is set on the first antenna radiator or The second antenna radiator;
- the first end of the tuning circuit is connected to the first access point of the first antenna radiator
- the second end of the tuning circuit is connected to the second access point of the second antenna radiator
- the The third end of the tuning circuit is grounded, and the length between the first access point and the second end of the first antenna radiator is smaller than that of the first access point and the first antenna radiator.
- the length between the second access point and the second end of the second antenna radiator is less than the length between the second access point and the first end of the second antenna radiator.
- the first end of the inductor is grounded, and when the feeding point is provided in the first antenna radiator, the second end of the inductor is connected to the second access point, and the feeding point is When the electrical point is provided in the second antenna radiator, the second end of the inductor is connected to the first access point;
- the second end of the signal source is grounded.
- the embodiments of the present disclosure also provide a communication terminal including the above-mentioned antenna structure.
- An antenna structure of an embodiment of the present disclosure includes: a first antenna radiator, a second antenna radiator, a matching network, a tuning circuit, an inductor, and a signal source; the second end of the first antenna radiator and the first antenna radiator The second ends of the two antenna radiators are coupled through a slot, the first end of the first antenna radiator is grounded, and the first end of the second antenna radiator is grounded; the first end of the matching network is connected to the feeder The second end of the matching network is connected to the first end of the signal source, wherein the feeding point is set at the first antenna radiator or the second antenna radiator;
- the first end of the tuning circuit is connected to the first access point of the first antenna radiator, the second end of the tuning circuit is connected to the second access point of the second antenna radiator, and the tuning circuit
- the third end of the first access point is grounded, and the length between the first access point and the second end of the first antenna radiator is less than the length between the first access point and the first end of the first antenna radiator The length between the second access point and the second end of the second
- FIG. 1 is one of the structural schematic diagrams of an antenna structure provided by an embodiment of the present disclosure
- FIG. 2 is the second structural diagram of the antenna structure provided by an embodiment of the present disclosure
- FIG. 3 is the third structural diagram of the antenna structure provided by an embodiment of the present disclosure.
- FIG. 4 is the fourth structural diagram of the antenna structure provided by an embodiment of the present disclosure.
- FIG. 1 and FIG. 2 are structural schematic diagrams of the antenna structure provided by the embodiments of the present disclosure.
- the antenna structure includes a first antenna radiator 1, a second antenna radiator 2, and The matching network 3, the tuning circuit 4, the inductor 5 and the signal source 6; the second end of the first antenna radiator 1 and the second end of the second antenna radiator 2 are coupled through a gap, and the first The first end of the antenna radiator 1 is grounded, and the first end of the second antenna radiator 2 is grounded; the first end of the matching network 3 is connected to the feeding point, and the second end of the matching network 3 is connected to the The first end of the signal source 6 is connected, wherein the feeding point is set at the first antenna radiator 1 or the second antenna radiator 2; the first end of the tuning circuit 4 is connected to the first antenna The first access point of an antenna radiator 1 is connected, the second end of the tuning circuit 4 is connected to the second access point of the second antenna radiator 2, and the third end of the tuning circuit 4 is grounded, The length between the first access point
- FIG. 1 shows a case where the feeding point is set in the first antenna radiator 1, and at this time, the second end of the inductor 5 is connected to the second access point.
- Fig. 2 shows the case where the feeding point is set on the second antenna radiator 2, and at this time, the second end of the inductor 5 is connected to the first access point.
- the first antenna radiator 1 when the feeding point is set on the first antenna radiator 1, the first antenna radiator 1 may be an antenna resonant arm, and the second antenna radiator 2 may be an antenna coupling arm.
- the second antenna radiator 2 when the feeding point is set on the second antenna radiator 2, the second antenna radiator 2 may be an antenna resonant arm, and the first antenna radiator 1 may be an antenna coupling arm.
- the above-mentioned matching network 3 may be composed of a single capacitor, or may also be composed of a plurality of capacitors in parallel, or a series of capacitors and inductors, or a parallel connection of capacitors and inductors, and so on.
- the above-mentioned tuning circuit 4 may include tuning elements and antenna tuning switches, and the number of tuning elements and antenna tuning switches can be set according to specific conditions, which is not limited in this embodiment.
- the length between the first access point and the second end of the first antenna radiator 1 is smaller than the first access point and the first end of the first antenna radiator 1
- the length between the second access point and the second end of the second antenna radiator 2 is smaller than the first end of the second access point and the second antenna radiator 2
- the length between the tuning circuit 4 is set close to the gap.
- the tuning circuit 4 can be provided with multiple switches to tune different antenna radiators, so that the intermediate frequency and high frequency antenna structures can be separated, and the intermediate frequency or high frequency efficiency can be improved. With the above-mentioned first antenna radiator 1 and second antenna radiator 2 within an appropriate size range, good radiation in the frequency band from 1.71 GHz to 2.69 GHz can be achieved through the switch tuning effect in the tuning circuit 4.
- the tuning circuit 4 includes a first tuning element 41, a second tuning element 42, a third tuning element 43, a fourth tuning element 44, a first switch, a second switch, a third switch, and a fourth switch;
- the first end of the first tuning element 41 is connected to the first access point, and the second end of the first tuning element 41 is connected to the first contact of the first switch;
- the first end of the second tuning element 42 is connected to the first access point, and the second end of the second tuning element 42 is connected to the first contact of the second switch;
- the first end of the third tuning element 43 is connected to the second access point, and the second end of the third tuning element 43 is connected to the first contact of the third switch;
- the first end of the fourth tuning element 44 is connected to the second access point, and the second end of the fourth tuning element 44 is connected to the first contact of the fourth switch;
- the second contact of the first switch, the second contact of the second switch, the second contact of the third switch, and the second contact of the fourth switch are all grounded.
- FIG. 3 and FIG. 4 are structural schematic diagrams of the antenna structure provided by the embodiment of the present disclosure.
- first switch, second switch, third switch, and fourth switch can be integrated as one antenna tuning switch 45.
- Different antenna radiators can be tuned by controlling the opening or closing of different switches.
- the length of the first antenna radiator 1 is greater than the length of the second antenna radiator 2.
- the length of the first antenna radiator 1 is greater than or equal to the length of the second antenna radiator 2.
- the length of the first antenna radiator 1 may be 20 mm to 30 mm, and the length of the second antenna radiator 2 may be 10 mm to 20 mm.
- the resonant frequency band of the antenna structure is 1.71 GHz to 1.92 GHz;
- the resonant frequency band of the antenna structure is 1.88 GHz to 2.17 GHz;
- the resonance frequency band of the antenna structure is 1.88 GHz to 2.17 GHz;
- the resonant frequency band of the antenna structure is 2.3 GHz to 2.69 GHz;
- the resonance frequency band of the antenna structure is 2.3 GHz to 2.69 GHz.
- a mid-band (1.71 GHz to 2.17 GHz) antenna design or a high-band (2.3 GHz to 2.69 GHz) antenna design can be implemented.
- the mid-band antenna design can be as follows: when the first switch is turned on, the second switch is turned on, the third switch is turned on, and the fourth switch is turned on, the resonant frequency band of the antenna structure is 1.71GHz ⁇ 1.92GHz; when the first switch is opened, the second switch is opened, the third switch is opened, and the fourth switch is closed, the resonant frequency band of the antenna structure is 1.88GHz to 2.17GHz; When the first switch is opened, the second switch is opened, the third switch is closed, and the fourth switch is opened, the resonance frequency band of the antenna structure is 1.88 GHz to 2.17 GHz.
- the high-frequency antenna design can be as follows: when the first switch is closed, the second switch is opened, the third switch is opened, and the fourth switch is opened, the resonance frequency band of the antenna structure is 2.3 GHz ⁇ 2.69 GHz; when the first switch is opened, the second switch is closed, the third switch is opened, and the fourth switch is opened, the resonance frequency band of the antenna structure is 2.3 GHz to 2.69 GHz.
- the antennas are separated in structure and basically separated in frequency.
- the use of different effective radiator sizes for medium and high frequency radiation is beneficial to increase the radiation efficiency bandwidth.
- the length of the first antenna radiator 1 can be greater than the length of the second antenna radiator 2. From the perspective of the antenna structure, the first antenna radiator 1 and the second antenna radiator 2 work together when the antenna works in the middle frequency band, and when the antenna works in the high frequency band, the tuning of the second antenna radiator 2 plays a major role.
- the antenna tuning switch 45 is designed at one end of the first antenna radiator 1 and the second antenna radiator 2 close to the gap, so that the first antenna radiator 1 and the second antenna radiator 2 share the antenna tuning switch 45, which can effectively reduce the antenna Number of switches and cost. Compared with a single resonant arm antenna design method, the design of Figure 3 can obtain a higher radiation efficiency bandwidth.
- the length of the first antenna radiator 1 in FIG. 4 may be greater than the length of the second antenna radiator 2.
- the antenna structure is separated, and the frequency is basically separated.
- the medium and high frequency radiation uses different effective radiator sizes.
- the high frequency tuning body is the second antenna radiator 2
- the medium and high frequency tuning body is the first antenna radiator 1 and the second antenna.
- the radiator 2 works together), which is beneficial to increase the radiation efficiency bandwidth.
- the antenna tuning switch 45 is designed at one end of the first antenna radiator 1 and the second antenna radiator 2 close to the gap, so that the first antenna radiator 1 and the second antenna radiator 2 share the antenna tuning switch 45, which can effectively reduce the antenna Number of switches and cost.
- the first tuning element 41, the second tuning element 42, the third tuning element 43, and the fourth tuning element 44 are all inductors.
- the first tuning element 41, the second tuning element 42, the third tuning element 43, and the fourth tuning element 44 are all inductors.
- the inductance value of the inductor may have a negative correlation with the operating frequency of the antenna structure. That is, the lower the antenna operating frequency, the greater the inductance value required by the switching branch device, and the operating frequency of the antenna structure has an inverse proportional relationship with the inductance value.
- the inductor is an inductor with an adjustable inductance value.
- the matching network 3 is a capacitor.
- the matching network 3 is a capacitor.
- the feeding point is arranged in the middle area of the first antenna radiator 1 or in the middle area of the second antenna radiator 2.
- the feeding point is arranged in the middle area of the first antenna radiator 1, or arranged in the middle area of the second antenna radiator 2, so that the antenna structure can have better radiation performance.
- the middle area may be the center point of the length between the two ends of the antenna radiator, or it may start from the center of the length between the two ends of the antenna radiator and extend a set length of radiating section to the two ends respectively.
- the set length can be a fixed value or a value proportional to the antenna radiation length.
- the length between the first access point and the second end of the first antenna radiator 1 and the length between the first access point and the first end of the first antenna radiator 1 is less than 1/2;
- the length between the second access point and the second end of the second antenna radiator 2 and the length between the second access point and the first end of the second antenna radiator 2 The ratio is less than 1/2.
- the length between the first access point and the second end of the first antenna radiator 1 is the same as the length between the first access point and the first end of the first antenna radiator 1
- the ratio of the length between the two is less than 1/2
- the length between the second access point and the second end of the second antenna radiator 2 is the same as the length between the second access point and the second antenna
- the ratio of the length between the first ends of the radiator 2 is less than 1/2.
- the tuning circuit 4 can be designed at the end of the first antenna radiator 1 and the second antenna radiator 2 close to the gap.
- the tuning circuit 4 can include an antenna tuning switch 45 to perform tuning.
- the first antenna radiator 1 and the second antenna radiator The two antenna radiators 2 share the antenna tuning switch 45, which can effectively reduce the number and cost of antenna switches.
- the width of the gap is 1.2 mm to 1.5 mm.
- the width of the gap is 1.2 mm to 1.5 mm, and the gap is equivalent to a coupling capacitor.
- An antenna structure of an embodiment of the present disclosure includes a first antenna radiator 1, a second antenna radiator 2, a matching network 3, a tuning circuit 4, an inductor 5, and a signal source 6; the first antenna radiator 1 The two ends and the second end of the second antenna radiator 2 are coupled through a slot, the first end of the first antenna radiator 1 is grounded, and the first end of the second antenna radiator 2 is grounded;
- the first end of the matching network 3 is connected to a feeding point, and the second end of the matching network 3 is connected to the first end of the signal source 6, wherein the feeding point is set at the first antenna radiation Body 1 or the second antenna radiator 2;
- the first end of the tuning circuit 4 is connected to the first access point of the first antenna radiator 1, and the second end of the tuning circuit 4 is connected to the The second access point of the second antenna radiator 2 is connected, the third end of the tuning circuit 4 is grounded, and the length between the first access point and the second end of the first antenna radiator 1 is less than The length between the first access point and the first end of the first antenna radiator 1, and the
- the embodiment of the present disclosure also provides a communication terminal including the above-mentioned antenna structure.
- the aforementioned communication terminal may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), and a mobile Internet device (Mobile Internet Device, MID) Or wearable devices (Wearable Device) and so on.
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Abstract
本公开提供一种天线结构及通信终端。该天线结构包括:第一天线辐射体、第二天线辐射体、匹配网络、调谐电路、电感和信号源;第一天线辐射体的第二端和第二天线辐射体的第二端之间通过缝隙耦合;匹配网络的第一端与馈电点连接,匹配网络的第二端与信号源的第一端连接;调谐电路的第一端与第一天线辐射体的第一接入点连接,调谐电路的第二端与第二天线辐射体的第二接入点连接,调谐电路的第三端接地;电感的第一端接地,且在馈电点设于第一天线辐射体的情况下,电感的第二端与第二接入点连接,在馈电点设于第二天线辐射体的情况下,电感的第二端与第一接入点连接;信号源的第二端接地。
Description
相关申请的交叉引用
本申请主张在2019年3月4日在中国提交的中国专利申请No.201910161168.3的优先权,其全部内容通过引用包含于此。
本公开涉及通信技术领域,尤其涉及一种天线结构及通信终端。
随着通信技术的迅速发展,通信终端已经成为人们生活中必不可少的一种工具,并且为用户生活的各个方面带来了便捷。通信终端上需要设置天线,并且随着通信终端的快速更新换代,对天线的设计也提出了更多的要求,例如位置、尺寸变化等等。
但是相关技术中,天线的中频或者高频的效率较低。
发明内容
本公开实施例提供一种天线结构及通信终端,以解决通信终端的天线的中频或者高频的效率较低的问题。
为了解决上述技术问题,本公开是这样实现的:
第一方面,本公开实施例提供了一种天线结构,包括:第一天线辐射体、第二天线辐射体、匹配网络、调谐电路、电感和信号源;
所述第一天线辐射体的第二端和所述第二天线辐射体的第二端之间通过缝隙耦合,所述第一天线辐射体的第一端接地,所述第二天线辐射体的第一端接地;
所述匹配网络的第一端与馈电点连接,所述匹配网络的第二端与所述信号源的第一端连接,其中,所述馈电点设于所述第一天线辐射体或者所述第二天线辐射体;
所述调谐电路的第一端与所述第一天线辐射体的第一接入点连接,所述 调谐电路的第二端与所述第二天线辐射体的第二接入点连接,所述调谐电路的第三端接地,所述第一接入点与所述第一天线辐射体的第二端之间的长度小于所述第一接入点与所述第一天线辐射体的第一端之间的长度,所述第二接入点与所述第二天线辐射体的第二端之间的长度小于所述第二接入点与所述第二天线辐射体的第一端之间的长度;
所述电感的第一端接地,且在所述馈电点设于所述第一天线辐射体的情况下,所述电感的第二端与所述第二接入点连接,在所述馈电点设于所述第二天线辐射体的情况下,所述电感的第二端与所述第一接入点连接;
所述信号源的第二端接地。
第二方面,本公开实施例还提供一种通信终端,包括上述天线结构。
本公开实施例的一种天线结构,包括:第一天线辐射体、第二天线辐射体、匹配网络、调谐电路、电感和信号源;所述第一天线辐射体的第二端和所述第二天线辐射体的第二端之间通过缝隙耦合,所述第一天线辐射体的第一端接地,所述第二天线辐射体的第一端接地;所述匹配网络的第一端与馈电点连接,所述匹配网络的第二端与所述信号源的第一端连接,其中,所述馈电点设于所述第一天线辐射体或者所述第二天线辐射体;所述调谐电路的第一端与所述第一天线辐射体的第一接入点连接,所述调谐电路的第二端与所述第二天线辐射体的第二接入点连接,所述调谐电路的第三端接地,所述第一接入点与所述第一天线辐射体的第二端之间的长度小于所述第一接入点与所述第一天线辐射体的第一端之间的长度,所述第二接入点与所述第二天线辐射体的第二端之间的长度小于所述第二接入点与所述第二天线辐射体的第一端之间的长度;所述电感的第一端接地,且在所述馈电点设于所述第一天线辐射体的情况下,所述电感的第二端与所述第二接入点连接,在所述馈电点设于所述第二天线辐射体的情况下,所述电感的第二端与所述第一接入点连接;所述信号源的第二端接地。本公开实施例可以提高天线中频或者高频的效率。
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描 述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本公开实施例提供的天线结构的结构示意图之一;
图2是本公开实施例提供的天线结构的结构示意图之二;
图3是本公开实施例提供的天线结构的结构示意图之三;
图4是本公开实施例提供的天线结构的结构示意图之四。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
参见图1和图2,图1和图2均为本公开实施例提供的天线结构的结构示意图,如图1和图2所示,包括第一天线辐射体1、第二天线辐射体2、匹配网络3、调谐电路4、电感5和信号源6;所述第一天线辐射体1的第二端和所述第二天线辐射体2的第二端之间通过缝隙耦合,所述第一天线辐射体1的第一端接地,所述第二天线辐射体2的第一端接地;所述匹配网络3的第一端与馈电点连接,所述匹配网络3的第二端与所述信号源6的第一端连接,其中,所述馈电点设于所述第一天线辐射体1或者所述第二天线辐射体2;所述调谐电路4的第一端与所述第一天线辐射体1的第一接入点连接,所述调谐电路4的第二端与所述第二天线辐射体2的第二接入点连接,所述调谐电路4的第三端接地,所述第一接入点与所述第一天线辐射体1的第二端之间的长度小于所述第一接入点与所述第一天线辐射体1的第一端之间的长度,所述第二接入点与所述第二天线辐射体2的第二端之间的长度小于所述第二接入点与所述第二天线辐射体2的第一端之间的长度;所述电感5的第一端接地,且在所述馈电点设于所述第一天线辐射体1的情况下,所述电感5的第二端与所述第二接入点连接,在所述馈电点设于所述第二天线辐射体2的情况下,所述电感5的第二端与所述第一接入点连接;所述信号源6的第 二端接地。
本实施例中,图1为所述馈电点设于所述第一天线辐射体1的情况,此时所述电感5的第二端与所述第二接入点连接。图2为所述馈电点设于所述第二天线辐射体2的情况,此时所述电感5的第二端与所述第一接入点连接。
本实施例中,当馈电点设置在第一天线辐射体1上时,上述第一天线辐射体1可以是天线谐振臂,上述第二天线辐射体2可以是天线耦合臂。当馈电点设置在第二天线辐射体2上时,上述第二天线辐射体2可以是天线谐振臂,上述第一天线辐射体1可以是天线耦合臂。
本实施例中,上述匹配网络3可以由单个电容组成,或者也可以由多个电容并联组成,或者由电容和电感的串联组成,或者由电容和电感的并联组成等等形式。上述调谐电路4可以包括调谐元件和天线调谐开关,并且调谐元件和天线调谐开关的数量可以根据具体的情况进行设置,对此本实施例不作限定。
本实施例中,所述第一接入点与所述第一天线辐射体1的第二端之间的长度小于所述第一接入点与所述第一天线辐射体1的第一端之间的长度,所述第二接入点与所述第二天线辐射体2的第二端之间的长度小于所述第二接入点与所述第二天线辐射体2的第一端之间的长度,将调谐电路4靠近缝隙进行设置。调谐电路4可以设置多个开关来对不同的天线辐射体进行调谐,这样可以实现中频、高频天线结构分离,提高中频或高频效率。上述第一天线辐射体1和第二天线辐射体2在适当尺寸范围下,经过调谐电路4中的开关调谐作用可以实现1.71GHz至2.69GHz频带良好辐射。
可选地,所述调谐电路4包括第一调谐元件41、第二调谐元件42、第三调谐元件43、第四调谐元件44、第一开关、第二开关、第三开关和第四开关;
所述第一调谐元件41的第一端与所述第一接入点连接,所述第一调谐元件41的第二端与所述第一开关的第一触点连接;
所述第二调谐元件42的第一端与所述第一接入点连接,所述第二调谐元件42的第二端与所述第二开关的第一触点连接;
所述第三调谐元件43的第一端与所述第二接入点连接,所述第三调谐元件43的第二端与所述第三开关的第一触点连接;
所述第四调谐元件44的第一端与所述第二接入点连接,所述第四调谐元件44的第二端与所述第四开关的第一触点连接;
所述第一开关的第二触点、第二开关的第二触点、第三开关的第二触点和第四开关的第二触点均接地。
为了更好的理解上述设置方式,可以参阅图3和图4,图3和图4均为本公开实施例提供的天线结构的结构示意图。
该实施方式中,上述第一开关、第二开关、第三开关和第四开关可以集成设置为一个天线调谐开关45。通过控制不同开关的打开或者闭合可以对不同的天线辐射体进行调谐。
可选地,所述第一天线辐射体1的长度大于所述第二天线辐射体2的长度。
该实施方式中,所述第一天线辐射体1的长度大于或等于第二天线辐射体2的长度。第一天线辐射体1的长度可以为20mm~30mm,第二天线辐射体2的长度可以为10mm~20mm。
可选地,在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为1.71GHz~1.92GHz;
在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关闭合的情况下,所述天线结构的谐振频段为1.88GHz~2.17GHz;
在所述第一开关打开,所述第二开关打开,所述第三开关闭合,所述第四开关打开的情况下,所述天线结构的谐振频段为1.88GHz~2.17GHz;
在所述第一开关闭合,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz;
在所述第一开关打开,所述第二开关闭合,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz。
该实施方式中,可实现中频段(1.71GHz至2.17GHz)天线设计或者高频段(2.3GHz至2.69GHz)天线设计。中频段天线设计可以如下:在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为1.71GHz~1.92GHz;在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关闭合的情况下, 所述天线结构的谐振频段为1.88GHz~2.17GHz;在所述第一开关打开,所述第二开关打开,所述第三开关闭合,所述第四开关打开的情况下,所述天线结构的谐振频段为1.88GHz~2.17GHz。
高频段天线设计可以如下:在所述第一开关闭合,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz;在所述第一开关打开,所述第二开关闭合,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz。
请再参阅图3,图3中天线结构上分离,频率上也基本分离。中高频辐射使用不同的有效辐射体尺寸,有利于提升辐射效率带宽,第一天线辐射体1的长度可以大于第二天线辐射体2的长度。从天线结构形式上理解,既是天线工作在中频段时,第一天线辐射体1和第二天线辐射体2协同作用,而天线工作在高频段时,第二天线辐射体2调谐起主要作用。
在第一天线辐射体1和第二天线辐射体2靠近缝隙的一端设计天线调谐开关45调谐,可以实现第一天线辐射体1和第二天线辐射体2共用天线调谐开关45,可以有效降低天线开关数量和成本。相比使用单一谐振臂天线设计方式,图3的设计能获得更高的辐射效率带宽。
请再参阅图4,图4中第一天线辐射体1的长度可以大于第二天线辐射体2的长度。天线结构上分离,频率上也基本分离,中高频辐射使用不同的有效辐射体尺寸,(高频调谐主体是第二天线辐射体2,中高频调谐主体是第一天线辐射体1和第二天线辐射体2共同作用),有利于提升辐射效率带宽。在第一天线辐射体1和第二天线辐射体2靠近缝隙的一端设计天线调谐开关45调谐,可以实现第一天线辐射体1和第二天线辐射体2共用天线调谐开关45,可以有效降低天线开关数量和成本。
可选地,所述第一调谐元件41、所述第二调谐元件42、所述第三调谐元件43和所述第四调谐元件44均为电感。
该实施方式中,所述第一调谐元件41、所述第二调谐元件42、所述第三调谐元件43和所述第四调谐元件44均为电感。并且该电感的电感值可以与天线结构的工作频率呈负相关(negative correlation)关系。即天线工作频率 越低,开关支路器件所需的电感值越大,天线结构的工作频率与所述电感值为反比例关系。在一种实施方式中,所述电感为电感值可调的电感。
可选地,所述匹配网络3为电容。
该实施方式中,所述匹配网络3为电容。
可选地,所述馈电点设置于所述第一天线辐射体1的中部区域,或者设置于所述第二天线辐射体2的中部区域。
该实施方式中,所述馈电点设置于所述第一天线辐射体1的中部区域,或者设置于所述第二天线辐射体2的中部区域,可以使天线结构具有更好的辐射性能。中部区域可以是天线辐射体两端之间长度的中心点,也可以是以天线辐射体两端之间长度的中心为起点,分别向两端延伸一设定长度的辐射段。设定长度可以是一个固定值,也可以是根据天线辐射长度而成一比例关系的值。
可选地,所述第一接入点与所述第一天线辐射体1的第二端之间的长度,与所述第一接入点与所述第一天线辐射体1第一端之间的长度的比值小于1/2;
所述第二接入点与所述第二天线辐射体2的第二端之间的长度,与所述第二接入点与所述第二天线辐射体2第一端之间的长度的比值小于1/2。
该实施方式中,所述第一接入点与所述第一天线辐射体1的第二端之间的长度,与所述第一接入点与所述第一天线辐射体1第一端之间的长度的比值小于1/2;所述第二接入点与所述第二天线辐射体2的第二端之间的长度,与所述第二接入点与所述第二天线辐射体2第一端之间的长度的比值小于1/2。这样,可以在第一天线辐射体1和第二天线辐射体2靠近缝隙的一端设计调谐电路4,调谐电路4可以包括天线调谐开关45,从而进行调谐,可以实现第一天线辐射体1和第二天线辐射体2共用天线调谐开关45,可以有效降低天线开关数量和成本。
可选地,所述缝隙的宽度为1.2mm~1.5mm。
该实施方式中,所述缝隙的宽度为1.2mm~1.5mm,并且该缝隙相当于一个耦合电容。
本公开实施例的一种天线结构,包括第一天线辐射体1、第二天线辐射体2、匹配网络3、调谐电路4、电感5和信号源6;所述第一天线辐射体1 的第二端和所述第二天线辐射体2的第二端之间通过缝隙耦合,所述第一天线辐射体1的第一端接地,所述第二天线辐射体2的第一端接地;所述匹配网络3的第一端与馈电点连接,所述匹配网络3的第二端与所述信号源6的第一端连接,其中,所述馈电点设于所述第一天线辐射体1或者所述第二天线辐射体2;所述调谐电路4的第一端与所述第一天线辐射体1的第一接入点连接,所述调谐电路4的第二端与所述第二天线辐射体2的第二接入点连接,所述调谐电路4的第三端接地,所述第一接入点与所述第一天线辐射体1的第二端之间的长度小于所述第一接入点与所述第一天线辐射体1的第一端之间的长度,所述第二接入点与所述第二天线辐射体2的第二端之间的长度小于所述第二接入点与所述第二天线辐射体2的第一端之间的长度;所述电感5的第一端接地,且在所述馈电点设于所述第一天线辐射体1的情况下,所述电感5的第二端与所述第二接入点连接,在所述馈电点设于所述第二天线辐射体2的情况下,所述电感5的第二端与所述第一接入点连接;所述信号源6的第二端接地。这样由于调谐电路4的存在,可以提高天线中频或者高频的效率。
本公开实施例还提供一种通信终端,包括上述天线结构。
本实施例中,上述通信终端可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant,PDA)、移动上网装置(Mobile Internet Device,MID)或可穿戴式设备(Wearable Device)等等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求 所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。
Claims (10)
- 一种天线结构,包括:第一天线辐射体、第二天线辐射体、匹配网络、调谐电路、电感和信号源;其中,所述第一天线辐射体的第二端和所述第二天线辐射体的第二端之间通过缝隙耦合,所述第一天线辐射体的第一端接地,所述第二天线辐射体的第一端接地;所述匹配网络的第一端与馈电点连接,所述匹配网络的第二端与所述信号源的第一端连接,其中,所述馈电点设于所述第一天线辐射体或者所述第二天线辐射体;所述调谐电路的第一端与所述第一天线辐射体的第一接入点连接,所述调谐电路的第二端与所述第二天线辐射体的第二接入点连接,所述调谐电路的第三端接地,所述第一接入点与所述第一天线辐射体的第二端之间的长度小于所述第一接入点与所述第一天线辐射体的第一端之间的长度,所述第二接入点与所述第二天线辐射体的第二端之间的长度小于所述第二接入点与所述第二天线辐射体的第一端之间的长度;所述电感的第一端接地,且在所述馈电点设于所述第一天线辐射体的情况下,所述电感的第二端与所述第二接入点连接,在所述馈电点设于所述第二天线辐射体的情况下,所述电感的第二端与所述第一接入点连接;所述信号源的第二端接地。
- 根据权利要求1所述的天线结构,其中,所述调谐电路包括第一调谐元件、第二调谐元件、第三调谐元件、第四调谐元件、第一开关、第二开关、第三开关和第四开关;所述第一调谐元件的第一端与所述第一接入点连接,所述第一调谐元件的第二端与所述第一开关的第一触点连接;所述第二调谐元件的第一端与所述第一接入点连接,所述第二调谐元件的第二端与所述第二开关的第一触点连接;所述第三调谐元件的第一端与所述第二接入点连接,所述第三调谐元件的第二端与所述第三开关的第一触点连接;所述第四调谐元件的第一端与所述第二接入点连接,所述第四调谐元件的第二端与所述第四开关的第一触点连接;所述第一开关的第二触点、第二开关的第二触点、第三开关的第二触点和第四开关的第二触点均接地。
- 根据权利要求2所述的天线结构,其中,所述第一天线辐射体的长度大于或等于所述第二天线辐射体的长度。
- 根据权利要求2所述的天线结构,其中,在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为1.71GHz~1.92GHz;在所述第一开关打开,所述第二开关打开,所述第三开关打开,所述第四开关闭合的情况下,所述天线结构的谐振频段为1.88GHz~2.17GHz;在所述第一开关打开,所述第二开关打开,所述第三开关闭合,所述第四开关打开的情况下,所述天线结构的谐振频段为1.88GHz~2.17GHz;在所述第一开关闭合,所述第二开关打开,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz;在所述第一开关打开,所述第二开关闭合,所述第三开关打开,所述第四开关打开的情况下,所述天线结构的谐振频段为2.3GHz~2.69GHz。
- 根据权利要求2所述的天线结构,其中,所述第一调谐元件、所述第二调谐元件、所述第三调谐元件和所述第四调谐元件均为电感。
- 根据权利要求1所述的天线结构,其中,所述匹配网络为电容。
- 根据权利要求1所述的天线结构,其中,所述馈电点设置于所述第一天线辐射体的中部区域,或者设置于所述第二天线辐射体的中部区域。
- 根据权利要求1所述的天线结构,其中,所述第一接入点与所述第一天线辐射体的第二端之间的长度,与所述第一接入点与所述第一天线辐射体第一端之间的长度的比值小于1/2;所述第二接入点与所述第二天线辐射体的第二端之间的长度,与所述第二接入点与所述第二天线辐射体第一端之间的长度的比值小于1/2。
- 根据权利要求1所述的天线结构,其中,所述缝隙的宽度为1.2mm~1.5mm。
- 一种通信终端,包括权利要求1至9中任一项所述的天线结构。
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CN112350049B (zh) * | 2019-08-09 | 2023-03-14 | 青岛海信移动通信技术股份有限公司 | 一种移动终端 |
CN112448725B (zh) * | 2019-08-28 | 2022-05-24 | 华为技术有限公司 | 天线、电子设备及天线控制方法 |
CN111082207B (zh) * | 2019-12-27 | 2022-03-25 | 维沃移动通信有限公司 | 一种天线结构及电子设备 |
CN113131194B (zh) * | 2019-12-31 | 2022-12-13 | 华为技术有限公司 | 一种阵列天线及通信设备 |
CN111129718B (zh) * | 2020-01-16 | 2024-02-09 | 努比亚技术有限公司 | 终端天线系统及移动终端 |
CN111276806B (zh) * | 2020-02-14 | 2023-01-24 | 维沃移动通信有限公司 | 一种天线和电子设备 |
CN111244616B (zh) * | 2020-03-27 | 2022-01-11 | 维沃移动通信有限公司 | 一种天线结构及电子设备 |
CN113708093B (zh) * | 2020-05-22 | 2024-02-06 | 北京小米移动软件有限公司 | 天线结构和电子设备 |
CN113764884B (zh) * | 2020-06-04 | 2023-06-27 | 华为技术有限公司 | 一种电子设备 |
CN112332093A (zh) * | 2020-10-26 | 2021-02-05 | Tcl通讯(宁波)有限公司 | 一种天线调谐装置及移动终端 |
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