CN111613880A - Antenna structures and electronics - Google Patents

Antenna structures and electronics Download PDF

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CN111613880A
CN111613880A CN202010522100.6A CN202010522100A CN111613880A CN 111613880 A CN111613880 A CN 111613880A CN 202010522100 A CN202010522100 A CN 202010522100A CN 111613880 A CN111613880 A CN 111613880A
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antenna
phase modulation
modulation arm
suppression
switch
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CN111613880B (en
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谢毅华
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0053Selective devices used as spatial filter or angular sidelobe filter
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

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Abstract

本申请公开了一种天线结构和电子设备,属于通信技术领域,该天线结构包括:天线本体,包括天线馈点和第一天线节点,第一天线节点与天线馈点之间的第一距离与天线结构的第一抑制频段中心频点匹配;第一调相臂,第一调相臂的第一端与第一天线节点连接;可调变容器,可调变容器与第一调相臂的第二端连接,其中,可调变容器用于在获取到第一预设电信号的情况下,将第一抑制频段中心频点调节为第一目标抑制频段中心频点,在第一调相臂获取到符合第一目标抑制频段中心频点的谐振频率的情况下,第一调相臂的电流相位与天线本体的电流相位相反。本申请实施例能够在多个无线通信频段同时工作时,提升波抑制效果。

Figure 202010522100

The present application discloses an antenna structure and electronic equipment, belonging to the technical field of communications. The antenna structure includes: an antenna body, including an antenna feed point and a first antenna node, and a first distance between the first antenna node and the antenna feed point is equal to The center frequency point of the first suppression frequency band of the antenna structure is matched; the first phase modulation arm, the first end of the first phase modulation arm is connected with the first antenna node; the adjustable variable container, the adjustable variable container is connected with the first phase modulation arm. The second end is connected, wherein the adjustable varactor is used to adjust the center frequency point of the first suppression frequency band to the center frequency point of the first target suppression frequency band when the first preset electrical signal is obtained. When the arm obtains a resonance frequency that conforms to the center frequency point of the first target suppression frequency band, the current phase of the first phase modulation arm is opposite to the current phase of the antenna body. The embodiments of the present application can improve the wave suppression effect when multiple wireless communication frequency bands work simultaneously.

Figure 202010522100

Description

天线结构和电子设备Antenna structures and electronics

技术领域technical field

本申请属于通信技术领域,具体涉及一种天线结构和电子设备。The present application belongs to the field of communication technologies, and in particular relates to an antenna structure and an electronic device.

背景技术Background technique

随着终端技术的迅速发展,智能终端覆盖的无线通信频段越来越多,在多个无线通信频段同时工时,一个频段的谐波对另一个频段干扰,尤其是距离基频频率最近的二次谐波,需要使用高选择性的滤波才可以在保持基频频段射频性能的同时有效抑制二次谐波。With the rapid development of terminal technology, more and more wireless communication frequency bands are covered by smart terminals. When working in multiple wireless communication frequency bands at the same time, the harmonics of one frequency band interfere with another frequency band, especially the secondary frequency closest to the fundamental frequency. For harmonics, highly selective filtering is required to effectively suppress the second harmonic while maintaining the RF performance in the fundamental frequency band.

在相关技术中,通常在射频通路上布置用电感和电容构建的陷波结构,或者贴装滤波器。其中,贴片滤波器中电感的选择性不高,单级对二次谐波抑制不太理想,而且因电感和电容的器件值一致性差,抑制频点的中心值很难控制。布置多级结构时,会明显导致基频频段插损过大,而且同样因电感和电容的器件值一致性差,各级抑制频点不一致,整体上并不会明显改善谐波的抑制效果。In the related art, a notch structure constructed with an inductor and a capacitor is usually arranged on the RF path, or a filter is mounted. Among them, the selectivity of the inductor in the chip filter is not high, and the single-stage suppression of the second harmonic is not ideal, and the central value of the suppression frequency point is difficult to control due to the poor consistency of the device values of the inductor and the capacitor. When the multi-level structure is arranged, the insertion loss in the fundamental frequency band will obviously be too large, and also due to the poor consistency of the device values of the inductor and the capacitor, the suppression frequency points at all levels are inconsistent, and the overall harmonic suppression effect will not be significantly improved.

可见,相关技术中存在多个无线通信频段同时工作时,谐波抑制效果差的问题。It can be seen that in the related art, when multiple wireless communication frequency bands work simultaneously, the harmonic suppression effect is poor.

发明内容SUMMARY OF THE INVENTION

本申请实施例的目的是提供一种天线结构和电子设备,能够解决多个无线通信频段同时工作时存在的谐波抑制效果差的问题。The purpose of the embodiments of the present application is to provide an antenna structure and an electronic device, which can solve the problem of poor harmonic suppression effect when multiple wireless communication frequency bands work simultaneously.

为了解决上述技术问题,本申请是这样实现的:In order to solve the above technical problems, this application is implemented as follows:

第一方面,本申请实施例提供了一种天线结构,包括:In a first aspect, an embodiment of the present application provides an antenna structure, including:

天线本体,包括天线馈点和第一天线节点,所述第一天线节点与所述天线馈点之间的第一距离与所述天线结构的第一抑制频段中心频点匹配;an antenna body, including an antenna feed point and a first antenna node, and a first distance between the first antenna node and the antenna feed point matches the center frequency point of the first suppression frequency band of the antenna structure;

第一调相臂,所述第一调相臂的第一端与所述第一天线节点连接;a first phase modulation arm, the first end of the first phase modulation arm is connected to the first antenna node;

可调变容器,所述可调变容器与所述第一调相臂的第二端连接,其中,所述可调变容器用于在获取到第一预设电信号的情况下,将所述第一抑制频段中心频点调节为第一目标抑制频段中心频点,在所述第一调相臂获取到符合所述第一目标抑制频段中心频点的谐振频率的情况下,所述第一调相臂的电流相位与所述天线本体的电流相位相反。an adjustable variable vessel, the adjustable variable vessel is connected to the second end of the first phase modulation arm, wherein the adjustable variable vessel is used to convert all the The first suppression frequency band center frequency point is adjusted to the first target suppression frequency band center frequency point, and the The current phase of a phase modulation arm is opposite to the current phase of the antenna body.

第二方面,本申请实施例提供了一种电子设备,所述电子设备包括第一方面的所述天线结构。In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the antenna structure of the first aspect.

在本申请实施例中,能够通过可调变容器调节调相臂的抑制频段中心频点进行调节,且能够通过调相臂将符合上述抑制频段中心频点的谐振频率进行反相抑制,这样,能够通过调节变容器的电容值,实现改变调相臂的抑制频段中心频点,即改变调相臂所抑制的谐振频率,能够利用可调变容器调节调相臂的性能,提升调相臂的一致性,在多个无线通信频段同时工作时,能够抑制一个工作频率的谐波对另一个工作频率产生的干扰。In the embodiment of the present application, it is possible to adjust the center frequency point of the suppression frequency band of the phase modulation arm through the adjustable variable capacitor, and the resonant frequency that conforms to the center frequency point of the suppression frequency band can be reversely suppressed through the phase modulation arm. In this way, By adjusting the capacitance value of the varactor, the center frequency of the suppression frequency band of the phase modulation arm can be changed, that is, the resonant frequency suppressed by the phase modulation arm can be changed. Consistency, when working in multiple wireless communication frequency bands at the same time, it can suppress the interference of harmonics of one working frequency to another working frequency.

附图说明Description of drawings

图1是本申请实施例提供的天线结构的结构图之一;FIG. 1 is one of the structural diagrams of an antenna structure provided by an embodiment of the present application;

图2是本申请实施例提供的天线结构的结构图之二;FIG. 2 is a second structural diagram of an antenna structure provided by an embodiment of the present application;

图3a是图2所示天线结构在第一工作状态下的电流方向图;FIG. 3 a is a current pattern of the antenna structure shown in FIG. 2 in a first working state;

图3b是图2所示天线结构在第二工作状态下的电流方向图;Fig. 3b is the current pattern diagram of the antenna structure shown in Fig. 2 in the second working state;

图4是本申请实施例提供的天线结构的结构图之三;FIG. 4 is a third structural diagram of an antenna structure provided by an embodiment of the present application;

图5是本申请实施例提供的天线结构的结构图之四;FIG. 5 is a fourth structural diagram of an antenna structure provided by an embodiment of the present application;

图6是本申请实施例提供的天线结构的结构图之五。FIG. 6 is a fifth structural diagram of an antenna structure provided by an embodiment of the present application.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图,对本申请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申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”等所区分的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”,一般表示前后关联对象是一种“或”的关系。The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between "first", "second", etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的天线结构进行详细地说明。The antenna structure provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

请参阅图1,是本申请实施例提供的天线结构的结构图之一。如图1所示,本申请实施例提供的天线结构包括:天线本体1、第一调相臂2和可调变容器3。Please refer to FIG. 1 , which is one of the structural diagrams of the antenna structure provided by the embodiment of the present application. As shown in FIG. 1 , the antenna structure provided by the embodiment of the present application includes: an antenna body 1 , a first phase modulation arm 2 , and an adjustable variable container 3 .

其中,天线本体1包括天线馈点11和第一天线节点12,第一天线节点12与所述天线馈点11之间的第一距离与所述天线结构的第一抑制频段中心频点匹配;第一调相臂2的第一端与第一天线节点12连接;可调变容器3与第一调相臂2的第二端连接。The antenna body 1 includes an antenna feed point 11 and a first antenna node 12, and the first distance between the first antenna node 12 and the antenna feed point 11 matches the center frequency of the first suppression frequency band of the antenna structure; The first end of the first phase modulation arm 2 is connected with the first antenna node 12 ; the adjustable variable container 3 is connected with the second end of the first phase modulation arm 2 .

在工作中,可调变容器3用于在获取到第一预设电信号的情况下,将所述第一抑制频段中心频点调节为第一目标抑制频段中心频点,在第一调相臂2获取到符合所述第一目标抑制频段中心频点的谐振频率的情况下,第一调相臂2的电流相位与天线本体1的电流相位相反。In operation, the adjustable variable capacitor 3 is used to adjust the center frequency of the first suppression frequency band to the center frequency of the first target suppression frequency band when the first preset electrical signal is obtained, and the first phase modulation When the arm 2 obtains a resonance frequency that conforms to the center frequency point of the first target suppression frequency band, the current phase of the first phase modulation arm 2 is opposite to the current phase of the antenna body 1 .

在具体实施中,上述第一调相臂2获取到符合所述第一目标抑制频段中心频点的谐振频率,可以理解为,第一调相臂2从第一天线节点12获取到符合所述第一目标抑制频段中心频点的谐振频率。且上述第一调相臂2可以包括电容器和电感器等结构,其能够根据获取到的不同频率的辐射波而调节电流相位,在第一调相臂2接收到抑制谐波的情况下,对天线本体1内的电流信号分流,即第一调相臂2内的电流相位与天线本体1的电流相位相反,从而减小天线本体1对抑制谐波的辐射效率;在第一调相臂2接收到非抑制谐波(包括抑制谐波的基频辐射波以及其他频段的工作辐射波等)的情况下,不对天线本体1内的电流信号分流,即第一调相臂2内的电流相位与天线本体1的电流相位相同,从而不干扰天线本体1内非抑制谐波的辐射效率。该第一调相臂2具体可以包括电容元件和电感元件中的至少一种。In a specific implementation, the above-mentioned first phase modulation arm 2 obtains a resonant frequency that conforms to the center frequency of the first target suppression frequency band. The first target suppresses the resonant frequency of the center frequency point of the frequency band. And the above-mentioned first phase modulation arm 2 may include structures such as capacitors and inductors, which can adjust the current phase according to the acquired radiation waves of different frequencies. The current signal in the antenna body 1 is shunted, that is, the current phase in the first phase modulation arm 2 is opposite to the current phase of the antenna body 1, thereby reducing the radiation efficiency of the antenna body 1 for suppressing harmonics; in the first phase modulation arm 2 In the case of receiving non-suppressed harmonics (including fundamental frequency radiation waves that suppress harmonics and working radiation waves of other frequency bands, etc.), the current signal in the antenna body 1 is not shunted, that is, the current phase in the first phase modulation arm 2 The current phase is the same as that of the antenna body 1 so as not to interfere with the radiation efficiency of the unsuppressed harmonics in the antenna body 1 . Specifically, the first phase modulation arm 2 may include at least one of a capacitive element and an inductive element.

需要说明的是,在实际工作中,上述第一调相臂2内的电容器和电感器等可能受到电信号取值的影响而使其实际的结构参数不同于额定参数,从而使得上述天线结构的第一抑制频段中心频点偏离需要抑制的谐振频率的第一目标抑制频段中心频点,本申请实施例中,在第一调相臂2的第二端设置可变电容3,通过调节可变电容3的电容值,使得上述天线结构的第一抑制频段中心频点与第一目标抑制频段中心频点匹配,从而提升抑制频段的一致性。It should be noted that, in actual work, the capacitors and inductors in the first phase modulation arm 2 may be affected by the value of the electrical signal, so that the actual structural parameters are different from the rated parameters, thus making the above antenna structure The center frequency of the first suppression band deviates from the center frequency of the first target suppression band of the resonance frequency to be suppressed. In the embodiment of the present application, a variable capacitor 3 is set at the second end of the first phase modulation arm 2, and the variable capacitor 3 is set by adjusting the The capacitance value of the capacitor 3 makes the center frequency point of the first suppression frequency band of the above-mentioned antenna structure match the center frequency point of the first target suppression frequency band, thereby improving the consistency of the suppression frequency band.

另外,上述第一预设电信号可以是预设电压信号,在实施中,在可调变容器3获取到不同的电压值时使,其电容值发生变化。具体的,具有本申请实施例提供的上述天线结构的电子设备具有处理器,可以将可调变容器3以及第一辐射臂2与该处理器连接,以使处理器获取第一辐射臂2的相位,并根据该相位与目标相位之间的差值控制电信号生成模块生成第一预设电信号,并传递至可调变容器3,以控制可调变容器3调节电容,从而将第一辐射臂2的相位调节至与目标相位一致。其中,上述目标相位根据天线本体1上传播的辐射波确定,即在天线本体1上传播的辐射波为抑制谐波的情况下,第一辐射臂2的目标相位为与天线本体1传播抑制谐波的相位相反;在天线本体1上传播的辐射波为非抑制谐波的情况下,第一辐射臂2的目标相位为与天线本体1传播非抑制谐波的相位相同。In addition, the above-mentioned first preset electrical signal may be a preset voltage signal. In implementation, when the variable capacitor 3 obtains different voltage values, its capacitance value changes. Specifically, the electronic device having the above-mentioned antenna structure provided in the embodiment of the present application has a processor, and the adjustable container 3 and the first radiation arm 2 can be connected to the processor, so that the processor can obtain the information of the first radiation arm 2 phase, and control the electrical signal generation module to generate a first preset electrical signal according to the difference between the phase and the target phase, and transmit it to the adjustable variable capacitor 3 to control the adjustable variable capacitor 3 to adjust the capacitance, so that the first preset electrical signal is generated. The phase of the radiation arm 2 is adjusted to be consistent with the target phase. Wherein, the above-mentioned target phase is determined according to the radiated wave propagating on the antenna body 1, that is, when the radiated wave propagating on the antenna body 1 is to suppress harmonics, the target phase of the first radiating arm 2 is the same as that of the antenna body 1 to suppress the harmonics. The phases of the waves are opposite; when the radiated waves propagating on the antenna body 1 are unsuppressed harmonics, the target phase of the first radiating arm 2 is the same as the phase of the unsuppressed harmonics propagated by the antenna body 1 .

本实施方式中,在第一调相臂2的电性能等发生改变而使得其第一抑制频段中心频点与第一目标抑制频段中心频点之间有差值时,能够通过向可调变容器3提供相应的电压,使得可调变容器3将第一调相臂2的器件值调整一致,从而将其抑制频段中心频点调整为第一目标抑制频段中心频点,从而提升第一调相臂2的一致性。In this embodiment, when the electrical properties of the first phase modulation arm 2 are changed, so that there is a difference between the center frequency point of the first suppression frequency band and the center frequency point of the first target suppression frequency band, it can be adjusted by adjusting the direction The container 3 provides the corresponding voltage, so that the variable capacitor 3 adjusts the device value of the first phase modulation arm 2 to the same value, so as to adjust the center frequency of its suppression frequency band to the center frequency of the first target suppression frequency band, thereby improving the first modulation frequency. Phase arm 2 consistency.

例如:若天线结构的需要抑制的谐振频率的中心频率为3.5GHz,在第一调相臂2流过第一电流值的情况下,其抑制频率中心频点为3.5GHz,此时向可调变容器发送第一电压值,使第一调相臂2的抑制频率中心频点保持不变;在第一调相臂2流过第二电流值的情况下,其抑制频率中心频点为3.6GHz,此时向可调变容器发送第二电压值,使第一调相臂2的抑制频率中心频点由第一调相臂2调整为3.5GHz。For example: if the center frequency of the resonant frequency that needs to be suppressed of the antenna structure is 3.5GHz, when the first phase-modulating arm 2 flows through the first current value, the center frequency of the suppression frequency is 3.5GHz, and at this time the direction can be adjusted The varactor transmits the first voltage value, so that the center frequency of the suppression frequency of the first phase modulation arm 2 remains unchanged; when the second current value flows through the first phase modulation arm 2, the center frequency of the suppression frequency is 3.6 GHz, at this time, the second voltage value is sent to the adjustable variable capacitor, so that the center frequency point of the suppression frequency of the first phase modulation arm 2 is adjusted from the first phase modulation arm 2 to 3.5 GHz.

在具体实施中,天线本体1的设置有天线馈点11的第一端和远离天线馈点11的第二端可以连接至接地端,则天线本体1内的电流可以由天线本体1的第一端流向天线本体1的第二端。且上述可调变容器3的第二端接地,上述第一调相臂2的电流相位与天线本体1的电流相位相反,可以是:第一调相臂2内的电流由第一调相臂2的第一端流向可调变容器3。此时,天线本体1内的电流经由第一天线节点12流向第一调相臂2内,使得天线本体1上的电流减小,从而能够降低天线本体1上的谐振频率。In a specific implementation, the first end of the antenna body 1 provided with the antenna feed point 11 and the second end away from the antenna feed point 11 can be connected to the ground end, and the current in the antenna body 1 can be controlled by the first end of the antenna body 1 . The end flows to the second end of the antenna body 1 . And the second end of the variable capacitor 3 is grounded, the current phase of the first phase adjustment arm 2 is opposite to the current phase of the antenna body 1, which can be: the current in the first phase adjustment arm 2 is determined by the first phase adjustment arm. The first end of 2 flows to the adjustable container 3 . At this time, the current in the antenna body 1 flows into the first phase modulation arm 2 through the first antenna node 12 , so that the current on the antenna body 1 is reduced, so that the resonant frequency on the antenna body 1 can be lowered.

另外,上述天线本体1还可以呈如图3a和图3b中所示的环形天线结构,则天线本体1内的电流可以沿逆时针方向。上述第一调相臂2的电流相位与天线本体1的电流相位相反,可以是:如图3a所示的第一调相臂2内的电流由第一调相臂2的第一端流向第一调相臂2的第二端。此时,天线本体1内的电流经由第一天线节点12流向第一调相臂2内,使得天线本体1上的电流减小,从而能够降低天线本体1上的谐振频率。In addition, the above-mentioned antenna body 1 may also have a loop antenna structure as shown in FIG. 3 a and FIG. 3 b , and the current in the antenna body 1 may be in a counterclockwise direction. The current phase of the above-mentioned first phase adjustment arm 2 is opposite to the current phase of the antenna body 1, which may be: as shown in FIG. 3a, the current in the first phase adjustment arm 2 flows from the first end of the first phase adjustment arm 2 to the A second end of the phase modulation arm 2 . At this time, the current in the antenna body 1 flows into the first phase modulation arm 2 through the first antenna node 12 , so that the current on the antenna body 1 is reduced, so that the resonant frequency on the antenna body 1 can be lowered.

需要说明的是,在第一调相臂2获取到不符合所述第一目标抑制频段中心频点的谐振频率的情况下,例如:获取到工作频率(或者可称之为基频频率)的情况下,如图3b所示,第一调相臂2的电流相位与天线本体1的电流相位相同,具体的,在天线本体1传输电子设备的工作频率时,该工作频率不符合所述第一目标抑制频段中心频点,此时第一调相臂2的电流相位与天线本体1的电流相位相同,从而不会对电子设备的工作频率产生抑制或者干扰。It should be noted that, in the case where the first phase modulation arm 2 obtains a resonance frequency that does not conform to the center frequency of the first target suppression frequency band, for example, obtains a working frequency (or can be referred to as a fundamental frequency) In this case, as shown in Figure 3b, the current phase of the first phase modulation arm 2 is the same as the current phase of the antenna body 1. Specifically, when the antenna body 1 transmits the working frequency of the electronic device, the working frequency does not conform to the first phase. At the center frequency of a target suppression frequency band, the current phase of the first phase modulation arm 2 is the same as the current phase of the antenna body 1, so that the operating frequency of the electronic device will not be suppressed or interfered with.

本实施方式中,在具有天线本体1的电子设备的基频频率或者信道发生改变时,通过调节可调变容器3的电容值,使得第一调相臂2的器件值保持一致,从而使得该第一调相臂2所抑制的频段中心频点保持一致,提升所述天线结构的谐波抑制效率。In this embodiment, when the fundamental frequency or the channel of the electronic device having the antenna body 1 changes, the capacitance value of the adjustable variable capacitor 3 is adjusted to keep the device value of the first phase modulation arm 2 consistent, so that the The center frequency points of the frequency bands suppressed by the first phase modulation arm 2 are kept consistent, which improves the harmonic suppression efficiency of the antenna structure.

另外,上述第一天线节点12与所述天线馈点11之间的第一距离与所述天线结构的第一抑制频段中心频点匹配,可以理解为:在第一天线节点12与所述天线馈点11之间的电长度(也可以称之为等效长度)等于上述第一距离的情况下,本申请实施例提供的天线结构抑制的谐振频率的中心频点为第一抑制频段中心频点。在实际应用中,上述第一抑制频段中心频点可以是某一工作频率的二次谐波(或者偶次谐波)、三次谐波(或者奇次谐波)等,本实施方式中,可以抑制该偶次谐波或者奇次谐波,从而避免该谐波对另一工作频率产生干扰。In addition, the above-mentioned first distance between the first antenna node 12 and the antenna feed point 11 matches the center frequency of the first suppression frequency band of the antenna structure, which can be understood as: the first antenna node 12 and the antenna When the electrical length (also referred to as the equivalent length) between the feed points 11 is equal to the above-mentioned first distance, the center frequency of the resonant frequency suppressed by the antenna structure provided by the embodiment of the present application is the center frequency of the first suppression frequency band. point. In practical applications, the center frequency of the first suppression frequency band may be the second harmonic (or even harmonic), the third harmonic (or odd harmonic), etc. of a certain working frequency. The even harmonic or odd harmonic is suppressed, so as to prevent the harmonic from interfering with another operating frequency.

例如:如图2中所示环形天线结构,若将该天线结构的抑制频率设计为二次谐波,则基频工作时,第一调相臂2与环形天线1连接的第一天线节点12距离天线馈点11的电长度假设为a×λ,其中,λ为基频频率的波长;二次谐工作时,第一调相臂2与环形状天线1连接的第一天线节点12距离天线馈点11的电长度为2a×λb2×λb2×λ×λ。假设第一调相臂2在基频时的等效电长度为b1×λ,在二次谐波时的等效电长度为b2×λ。合理选取a值、b1值和b2值,使得接入第一调相臂2时,环形天线1的第一天线节点12在基频工作时的相位不变化,而在二次谐波工作时,第一调相臂2的相位与环形天线1的第一天线节点12的相位反相,从而实现对二次谐波的抑制。为提高抑制效果,应在二次谐波对应的波峰处即二次谐波的中心频点设置第一调相臂2,从而使a取1/8或者3/8。使b1=N,并使b2=M-4×a,其中N、M为整数。For example, for the loop antenna structure shown in FIG. 2 , if the suppression frequency of the antenna structure is designed to be the second harmonic, when the fundamental frequency works, the first phase modulation arm 2 is connected to the first antenna node 12 of the loop antenna 1 . The electrical length from the antenna feed point 11 is assumed to be a×λ, where λ is the wavelength of the fundamental frequency; during the second harmonic operation, the first antenna node 12 connected between the first phase modulation arm 2 and the loop antenna 1 is far from the antenna The electrical length of the feed point 11 is 2a×λb 2 ×λb 2 ×λ×λ. It is assumed that the equivalent electrical length of the first phase modulation arm 2 at the fundamental frequency is b 1 ×λ, and the equivalent electrical length at the second harmonic is b 2 ×λ. Reasonable selection of a value, b 1 value and b 2 value, so that when the first phase modulation arm 2 is connected, the phase of the first antenna node 12 of the loop antenna 1 does not change when it works at the fundamental frequency, but it works at the second harmonic. When , the phase of the first phase modulation arm 2 is opposite to the phase of the first antenna node 12 of the loop antenna 1 , thereby realizing the suppression of the second harmonic. In order to improve the suppression effect, the first phase modulation arm 2 should be set at the peak corresponding to the second harmonic, that is, the center frequency point of the second harmonic, so that a takes 1/8 or 3/8. Let b 1 =N, and let b 2 =M-4×a, where N and M are integers.

需要说明的是,在上述天线结构的抑制频率设计为二次谐波的情况下,还能够通过调相臂抑制其他偶次谐波,在此不作具体限定。It should be noted that, when the suppression frequency of the above-mentioned antenna structure is designed to be the second harmonic, other even harmonics can also be suppressed by the phase modulation arm, which is not specifically limited here.

当然,天线结构还可以抑制其他谐波,例如:若将该天线结构的抑制频率设计为三次谐波,则基频工作时,第一调相臂2与环形天线1连接的第一天线节点12距离天线馈点11的电长度记为a×λ;三次谐工作时,第一天线节点12距离天线馈点11的电长度为3a×λ。假设第一调相臂2在基频时的等效电长度为b1×λ,在三次谐波时的等效电长度为b2×λ。合理选取a值和b1、b2值,使得接入第一调相臂2时,环形天线2的第一天线节点12在基频工作时相位不变化,在三次谐波工作时,第一调相臂2的相位与环形天线2的第一天线节点12处的相位反相,就能实现对三次谐波的抑制。为提高抑制效果,应在三次谐波对应波峰处(即三次谐波的中心频点在环形天1上对应的位置处)设置第一调相臂2,从而使a取1/12、1/4或者5/12,b1=N,且b2=M-6×a,其中N、M为整数。Of course, the antenna structure can also suppress other harmonics. For example, if the suppression frequency of the antenna structure is designed to be the third harmonic, when the fundamental frequency works, the first antenna node 12 connected to the first phase modulation arm 2 and the loop antenna 1 The electrical length from the antenna feed point 11 is denoted as a×λ; during the third harmonic operation, the electrical length from the first antenna node 12 from the antenna feed point 11 is 3a×λ. It is assumed that the equivalent electrical length of the first phase modulation arm 2 at the fundamental frequency is b 1 ×λ, and the equivalent electrical length at the third harmonic is b 2 ×λ. Reasonably select the value of a and the values of b 1 and b 2 , so that when the first phase modulation arm 2 is connected, the phase of the first antenna node 12 of the loop antenna 2 does not change when the fundamental frequency works, and when the third harmonic works, the first The phase of the phase modulation arm 2 is opposite to the phase at the first antenna node 12 of the loop antenna 2, so that the third harmonic can be suppressed. In order to improve the suppression effect, the first phase modulation arm 2 should be set at the corresponding peak of the third harmonic (that is, the position corresponding to the center frequency of the third harmonic on the annular sky 1), so that a takes 1/12, 1/ 4 or 5/12, b 1 =N, and b 2 =M-6×a, where N and M are integers.

需要说明的是,在上述天线结构的抑制频率设计为三次谐波的情况下,还能够通过调相臂抑制其他奇次谐波,在此不作具体限定。It should be noted that, when the suppression frequency of the above-mentioned antenna structure is designed to be the third harmonic, other odd harmonics can also be suppressed by the phase modulation arm, which is not specifically limited here.

以下以天线结构的抑制频率设计为二次谐波为例进行具体说明:若a=1/8,b1=1,b2=1/2。则在第一天线节点12处,基频时,该处由第一调相臂2的反射带来的偏转相位为:

Figure BDA0002532460590000071
第一天线节点12处原本的相位为
Figure BDA0002532460590000072
两者恰为同相,相位无变化;二次谐时,该处由第一调相臂2的反射带来的偏转相位为:
Figure BDA0002532460590000073
形天线2的第一天线节点12处原本的相位为
Figure BDA0002532460590000074
两者恰为反相,功率相互抵消,从而达到抑制二次谐波的效果。In the following, the design of the suppression frequency of the antenna structure as the second harmonic is taken as an example for specific description: if a=1/8, b 1 =1, b 2 =1/2. Then at the first antenna node 12, at the fundamental frequency, the deflection phase caused by the reflection of the first phase modulation arm 2 is:
Figure BDA0002532460590000071
The original phase at the first antenna node 12 is
Figure BDA0002532460590000072
The two are exactly in phase, and the phase does not change; at the second harmonic, the deflection phase caused by the reflection of the first phase modulation arm 2 is:
Figure BDA0002532460590000073
The original phase at the first antenna node 12 of the antenna 2 is
Figure BDA0002532460590000074
The two are just in opposite phases, and the powers cancel each other out, so as to achieve the effect of suppressing the second harmonic.

作为一种可选的实施方式,如图2所示,在天线本体1为环形天线的情况下,天线本体1还包括第二天线节点13,第二天线节点13与天线馈点11之间的第二距离等于所述第一距离,所述天线结构还可以包括:As an optional implementation manner, as shown in FIG. 2 , when the antenna body 1 is a loop antenna, the antenna body 1 further includes a second antenna node 13 , and the connection between the second antenna node 13 and the antenna feed point 11 is The second distance is equal to the first distance, and the antenna structure may further include:

第二调相臂4,第二调相臂4的第一端与第二天线节点13连接,第二调相臂4的第二端与可调变容器3的第二端连接,可调变容器3的第一端与第一调相臂2的第二端连接,其中,第一调相臂2与第二调相臂4沿第一对称线(如图2中所示虚线A)对称分布,天线馈点11和可调变容器3位于第一对称线A上。The second phase modulation arm 4, the first end of the second phase modulation arm 4 is connected with the second antenna node 13, the second end of the second phase modulation arm 4 is connected with the second end of the variable container 3, and the adjustable The first end of the container 3 is connected with the second end of the first phase adjusting arm 2, wherein the first phase adjusting arm 2 and the second phase adjusting arm 4 are symmetrical along a first symmetry line (as shown in the dotted line A in FIG. 2 ) distribution, the antenna feed point 11 and the adjustable variable container 3 are located on the first symmetry line A.

本实施方式中,上述第二调相臂4与第一调相臂2配合工作,以实现对环形天线的谐振频率进行抑制,具有与如图1所示实施例提供的天线结构相同的有益效果,在此不再赘述。In this embodiment, the second phase modulation arm 4 cooperates with the first phase modulation arm 2 to suppress the resonant frequency of the loop antenna, which has the same beneficial effect as the antenna structure provided by the embodiment shown in FIG. 1 . , and will not be repeated here.

作为一种可选的实施方式,如图2所示,天线结构还包括:第一开关5和第二开关6。As an optional implementation manner, as shown in FIG. 2 , the antenna structure further includes: a first switch 5 and a second switch 6 .

其中,第一开关5的第一端与第一天线节点12连接,第一开关5的第二端与第一调相臂2的第一端连接;第二开关6的第一端与第二天线节点13连接,第二开关6的第二端与第二调相臂4的第一端连接。The first end of the first switch 5 is connected to the first antenna node 12, the second end of the first switch 5 is connected to the first end of the first phase modulation arm 2; the first end of the second switch 6 is connected to the second The antenna node 13 is connected, and the second end of the second switch 6 is connected to the first end of the second phase modulation arm 4 .

在工作中,在所述第一抑制频段中心频点与所述天线结构的工作频段之间的频率差小于预设频率值的情况下,第一开关5的第一端和第一开关5的第二端断开连接,且第二开关6的第一端和第二开关6的第二端断开连接。During operation, when the frequency difference between the center frequency point of the first suppression frequency band and the working frequency band of the antenna structure is less than the preset frequency value, the first end of the first switch 5 and the first end of the first switch 5 The second terminal is disconnected, and the first terminal of the second switch 6 and the second terminal of the second switch 6 are disconnected.

在实际应用中,天线本体1、第一调相臂2和第二调相臂4上存在无源损耗,从而使得该天线结构的品质因素(也可称之为Q值)较低,使得第一调相臂2和第二调相臂4上的反相电流所形成的陷波频段较宽,使得抑制频段中心频段与基频频段距离较近时,第一调相臂2和第二调相臂4会对基频频段产生抑制,从而降低基频频段的辐射效率。本实施方式中,可以在上述情况下断开第一开关5的第一端和第二端,以及断开第二开关6的第一端和第二端,以避免对基频频段产生抑制,从而达到提升基频频段的辐射性能。In practical applications, there are passive losses on the antenna body 1, the first phase modulation arm 2 and the second phase modulation arm 4, so that the quality factor (also referred to as the Q value) of the antenna structure is low, so that the first phase modulation arm 2 has a passive loss. The notch frequency band formed by the inverse currents on the first phase modulation arm 2 and the second phase modulation arm 4 is wider, so that when the center frequency band of the suppression frequency band is close to the fundamental frequency band, the first phase modulation arm 2 and the second phase modulation arm 4 The phase arm 4 will suppress the fundamental frequency band, thereby reducing the radiation efficiency of the fundamental frequency band. In this embodiment, the first end and the second end of the first switch 5 and the first end and the second end of the second switch 6 can be disconnected under the above circumstances, so as to avoid suppressing the fundamental frequency band, Thereby, the radiation performance of the fundamental frequency band can be improved.

在具体实施中,上述预设频率值可以根据上述第一调相臂2、第二调相臂4和可调变容器3的精确度以及天线结构的应用场景确定,以确保仅在第一调相臂2、第二调相臂4和可调变容器3能够在有效抑制谐振频率的同时,不干扰基频频率的情况下工作;否则,断开第一开关5和第二开关6的第一端和第二端。In a specific implementation, the preset frequency value can be determined according to the accuracy of the first phase modulation arm 2, the second phase modulation arm 4 and the adjustable variable container 3 and the application scenario of the antenna structure, so as to ensure that only in the first modulation The phase arm 2, the second phase modulation arm 4 and the adjustable varactor 3 can work without disturbing the fundamental frequency while effectively suppressing the resonant frequency; otherwise, the first switch 5 and the second switch 6 are turned off. one end and the second end.

本实施方式中,在谐振频率与基频频率之间的差异较小时,断开第一开关5和第二开关6的第一端和第二端,能够避免第一调相臂2、第二调相臂4和可调变容器3在抑制谐振频率的同时对基频频率产生抑制,从而提升本申请实施例提供的天线结构的天线性能。In this embodiment, when the difference between the resonant frequency and the fundamental frequency is small, the first and second ends of the first switch 5 and the second switch 6 are disconnected, which can avoid the first phase modulation arm 2 and the second The phase-modulating arm 4 and the adjustable variable capacitor 3 suppress the fundamental frequency while suppressing the resonant frequency, thereby improving the antenna performance of the antenna structure provided in the embodiment of the present application.

需要说明的是,在应用于如图1所示非环形结构天线的情况下,该天线结构可以仅在第一调相臂2与第一天线节点12之间设置一个第一开关,并且,在所述第一抑制频段中心频点与所述天线结构的工作频段之间的频率差小于预设频率值的情况下,第一开关断开,从而避免该调相臂对工作频段产生抑制。It should be noted that, when applied to the non-loop structure antenna as shown in FIG. 1 , the antenna structure can only be provided with a first switch between the first phase modulation arm 2 and the first antenna node 12 , and, in the When the frequency difference between the center frequency point of the first suppression frequency band and the working frequency band of the antenna structure is less than the preset frequency value, the first switch is turned off, thereby preventing the phase modulation arm from suppressing the working frequency band.

作为一种可选的实施方式,如图4所示,天线本体1还包括第三天线节点14和第四天线节点15,第三天线节点14与天线馈点11之间的第三距离与所述天线结构的第二抑制频段中心频点匹配,第四天线节点15与天线馈点11之间的第四距离等于所述第三距离;As an optional implementation manner, as shown in FIG. 4 , the antenna body 1 further includes a third antenna node 14 and a fourth antenna node 15 , and the third distance between the third antenna node 14 and the antenna feed point 11 is the same as the The center frequency point of the second suppression band of the antenna structure is matched, and the fourth distance between the fourth antenna node 15 and the antenna feed point 11 is equal to the third distance;

第一开关5和第二开关6还包括第三端,第一开关5的第三端与第三天线节点14连接,第二开关6的第三端与第四天线节点15连接;The first switch 5 and the second switch 6 further include a third terminal, the third terminal of the first switch 5 is connected to the third antenna node 14, and the third terminal of the second switch 6 is connected to the fourth antenna node 15;

其中,在所述天线结构的目标抑制频段中心频点为所述第一抑制频段中心频点的情况下,第一开关5的第一端和第一开关5的第二端连通,第二开关6的第一端和第二开关6的第二端连通;Wherein, when the center frequency of the target suppression band of the antenna structure is the center frequency of the first suppression band, the first end of the first switch 5 is connected to the second end of the first switch 5, and the second switch The first end of 6 is connected with the second end of the second switch 6;

在所述天线结构的目标抑制频段中心频点为所述第二抑制频段中心频点的情况下,第一开关5的第三端和第一开关5的第二端连通,第二开关6的第三端和第二开关6的第二端连通,可调变容器3用于在接收到第二预设电信号的情况下,将所述第二抑制频段中心频点调节为第二目标预设抑制频段中心频点,在第一调相臂2获取到符合所述第二目标抑制频段中心频点的谐振频率的情况下,第一调相臂2的电流相位与天线本体1的电流相位相反。When the center frequency of the target suppression band of the antenna structure is the center frequency of the second suppression band, the third end of the first switch 5 is connected to the second end of the first switch 5, and the second end of the second switch 6 is connected. The third end is connected to the second end of the second switch 6, and the variable capacitor 3 is used to adjust the center frequency of the second suppression frequency band to the second target preset when the second preset electrical signal is received. Set the center frequency point of the suppression band, in the case that the first phase modulation arm 2 obtains a resonance frequency that meets the center frequency of the second target suppression band, the current phase of the first phase modulation arm 2 and the current phase of the antenna body 1 on the contrary.

在具体实施中,在第一开关5的第一端和第一开关5的第二端连通,第二开关6的第一端和第二开关6的第二端连通的情况下,第一调相臂2、第二调相臂4和可调变容器3对第一抑制频段中心频点的谐振频率进行抑制;在第一开关5的第三端和第一开关5的第二端连通,第二开关6的第三端和第二开关6的第二端连通的情况下,第一调相臂2、第二调相臂4和可调变容器3对第二抑制频段中心频点的谐振频率进行抑制。In a specific implementation, when the first end of the first switch 5 is connected to the second end of the first switch 5, and the first end of the second switch 6 is connected to the second end of the second switch 6, the first adjustment The phase arm 2, the second phase modulation arm 4 and the adjustable variable capacitor 3 suppress the resonance frequency of the center frequency point of the first suppression frequency band; the third end of the first switch 5 is connected with the second end of the first switch 5, Under the condition that the third end of the second switch 6 is connected to the second end of the second switch 6, the first phase modulation arm 2, the second phase modulation arm 4 and the adjustable variable capacitor 3 have a negative effect on the center frequency of the second suppression frequency band. Resonant frequency is suppressed.

其中,上述,第一调相臂2、第二调相臂4和可调变容器3对第二抑制频段中心频点的谐振频率进行抑制的过程与上述第一调相臂2、第二调相臂4和可调变容器3对第一抑制频段中心频点的谐振频率进行抑制的过程具有相同的远离,不同之处在于:第一制频段中心频点与第二抑制频段中心频点不同,从而使第三天线节点14和第四天线节点15距离天线馈点11的第三距离与第一天线节点12和第二天线节点13距离天线馈点11的第一距离不同。Among them, the above-mentioned process of suppressing the resonance frequency of the center frequency point of the second suppression frequency band by the first phase modulation arm 2, the second phase modulation arm 4 and the adjustable variable capacitor 3 is the same as that of the first phase modulation arm 2, the second phase modulation arm 2 and the second modulation The process of suppressing the resonant frequency of the center frequency point of the first suppression frequency band by the phase arm 4 and the adjustable variable capacitor 3 has the same distance, the difference is that the center frequency point of the first suppression frequency band is different from the center frequency point of the second suppression frequency band , so that the third distance from the third antenna node 14 and the fourth antenna node 15 to the antenna feed point 11 is different from the first distance from the first antenna node 12 and the second antenna node 13 to the antenna feed point 11 .

本实施方式中,上述天线结构能够通过第一开关5和第二开关6切换工作状态,且天线结构在不同工作状态下能够对不同的谐振频率进行抑制。例如:在第一基频频率与第二基频频率同时工作时,若第一基频频率的二次谐波能够对第二基频频率产生干扰,则可以通过将上述天线结构调整至第一工作状态,以使第一工作状态下的第一调相臂2、第二调相臂4和可调变容器3对第一基频频率的二次谐波进行抑制;另外,在第一基频频率与第三基频频率同时工作时,若第一基频频率的三次谐波能够对第三基频频率产生干扰,则可以通过将上述天线结构调整至第二工作状态,以使第二工作状态下的第一调相臂2、第二调相臂4和可调变容器3对第一基频频率的三次谐波进行抑制。In this embodiment, the above-mentioned antenna structure can switch the working state through the first switch 5 and the second switch 6, and the antenna structure can suppress different resonance frequencies in different working states. For example: when the first fundamental frequency and the second fundamental frequency work at the same time, if the second harmonic of the first fundamental frequency can interfere with the second fundamental frequency, the above-mentioned antenna structure can be adjusted to the first fundamental frequency. working state, so that the first phase modulation arm 2, the second phase modulation arm 4 and the adjustable variable capacitor 3 in the first working state can suppress the second harmonic of the first fundamental frequency; When the frequency of the first fundamental frequency and the third fundamental frequency work at the same time, if the third harmonic of the first fundamental frequency can interfere with the third fundamental frequency, the above-mentioned antenna structure can be adjusted to the second working state, so that the second The first phase modulation arm 2, the second phase modulation arm 4 and the adjustable variable capacitor 3 in the working state suppress the third harmonic of the first fundamental frequency.

需要说明的是,在应用于如图1所示非环形结构天线的情况下,天线本体1还包括第三天线节点,所述第三天线节点与所述天线馈点11之间的第三距离与所述天线结构的第二抑制频段中心频点匹配;It should be noted that, when applied to the non-loop structure antenna shown in FIG. 1 , the antenna body 1 further includes a third antenna node, and the third distance between the third antenna node and the antenna feed point 11 is matching with the center frequency point of the second suppression frequency band of the antenna structure;

所述第一开关还包括第三端,所述第一开关的第三端与所述第三天线节点连接,在同一时间,所述第一开关的第二端与所述第一开关的第一端和第三端中的一个连通;The first switch further includes a third terminal, the third terminal of the first switch is connected to the third antenna node, and at the same time, the second terminal of the first switch is connected to the third terminal of the first switch. One end and one of the third ends are connected;

其中,在所述天线结构的目标抑制频段中心频点为所述第一抑制频段中心频点的情况下,所述第一开关的第一端和所述第一开关的第二端连通;Wherein, when the center frequency of the target suppression frequency band of the antenna structure is the center frequency of the first suppression frequency band, the first end of the first switch is connected to the second end of the first switch;

在所述天线结构的目标抑制频段中心频点为所述第二抑制频段中心频点的情况下,所述第一开关的第三端和所述第一开关的第二端连通,所述可调变容器用于在接收到第二预设电信号的情况下,将所述第二抑制频段中心频点调节为第二目标预设抑制频段中心频点,在所述第一调相臂获取到符合所述第二目标抑制频段中心频点的谐振频率的情况下,所述第一调相臂的电流相位与所述天线本体的电流相位相反。When the center frequency of the target suppression band of the antenna structure is the center frequency of the second suppression band, the third end of the first switch is connected to the second end of the first switch, and the optional The modulation container is used to adjust the center frequency point of the second suppression frequency band to the center frequency point of the second target preset suppression frequency band in the case of receiving the second preset electrical signal, and obtains from the first phase modulation arm When the resonant frequency conforms to the center frequency point of the second target suppression frequency band, the current phase of the first phase modulation arm is opposite to the current phase of the antenna body.

本实施方式中,增加第一开关的切换节点,从而能够在第一开关处于不同开关状态下时,同一天线结构能够对不同频率的谐波进行抑制,增加了天线结构抑制频率的适用范围。In this embodiment, the switching node of the first switch is added, so that the same antenna structure can suppress harmonics of different frequencies when the first switch is in different switching states, thereby increasing the applicable range of the suppressed frequency of the antenna structure.

其中,上述第三开关5和第四开关6可以是单刀双掷开关,以使同一天线结构具有不同的工作状态,且不同工作状态下的天线结构能够抑制不同频率的谐波。The third switch 5 and the fourth switch 6 may be SPDT switches, so that the same antenna structure has different working states, and the antenna structures under different working states can suppress harmonics of different frequencies.

作为一种可选的实施方式,如图5或图6所示,天线结构还包括:耦合谐振模块(如图5中所示7或如图6中所示8),耦合谐振模块与所述第一调相臂2和所述第二调相臂4耦合。As an optional implementation manner, as shown in FIG. 5 or FIG. 6 , the antenna structure further includes: a coupling resonance module (7 shown in FIG. 5 or 8 shown in FIG. 6 ), the coupling resonance module is connected to the The first phase adjustment arm 2 is coupled with the second phase adjustment arm 4 .

在具体实施中,上述耦合谐振模块与第一调相臂2和第二调相臂4耦合的过程中,能够调整第一调相臂2和第二调相臂4的器件值,从而改变第一调相臂2和第二调相臂4的相位,以提升第一调相臂2和第二调相臂4的Q值。In a specific implementation, in the process of coupling the above-mentioned coupling resonance module with the first phase modulation arm 2 and the second phase modulation arm 4, the device values of the first phase modulation arm 2 and the second phase modulation arm 4 can be adjusted, thereby changing the first phase modulation arm 2 and the second phase modulation arm 4. The phases of the first phase modulation arm 2 and the second phase modulation arm 4 are increased to increase the Q value of the first phase modulation arm 2 and the second phase modulation arm 4 .

本实施方式中,能够在第一调相臂2和第二调相臂4对谐波进行反相电流抑制的过程中,通过耦合谐振模块与第一调相臂2和第二调相臂4之间的耦合作用,减小上述反相电流所形成的陷波频段的宽度,从而避免该陷波频段与频率差异较小的基频频段重叠,从而能够避免第一调相臂2和第二调相臂4对基频频段产生抑制,能够提升基频频段的辐射性能,使邻近抑制频段的射频系统和处于基频的射频系统能够同时正常工作。In this embodiment, in the process of the first phase adjustment arm 2 and the second phase adjustment arm 4 performing reverse current suppression on harmonics, the first phase adjustment arm 2 and the second phase adjustment arm 4 can be coupled with the first phase adjustment arm 2 and the second phase adjustment arm 4 through the coupling resonance module. The coupling effect between the above-mentioned reverse currents reduces the width of the notch frequency band formed by the above-mentioned reverse current, thereby avoiding the overlap between the notch frequency band and the fundamental frequency band with a small frequency difference, so as to avoid the first phase modulation arm 2 and the second phase modulation arm 2. The phase modulation arm 4 suppresses the fundamental frequency band, which can improve the radiation performance of the fundamental frequency band, so that the radio frequency system adjacent to the suppressed frequency band and the radio frequency system at the fundamental frequency can work normally at the same time.

作为一种可选的实施方式,如图5或图6所示,耦合谐振模块设置于第一调相臂2和第二调相臂3的远离天线馈点11的一侧。As an optional implementation manner, as shown in FIG. 5 or FIG. 6 , the coupling resonance module is disposed on the side of the first phase modulation arm 2 and the second phase modulation arm 3 away from the antenna feed point 11 .

本实施方式中,能够避免耦合谐振模块与靠近天线馈点11的天线本体1耦合,从而避免对天线本体1的辐射性能产生干扰。In this embodiment, the coupling of the resonant module and the antenna body 1 close to the antenna feed point 11 can be avoided, thereby avoiding interference with the radiation performance of the antenna body 1 .

在一种实施方式中,如图5所示,耦合谐振模块为钇铁石榴石铁氧体(YttriumIron Garnets,YIG)谐振结构7。In one embodiment, as shown in FIG. 5 , the coupled resonant module is a yttrium iron garnet (Yttrium Iron Garnets, YIG) resonant structure 7 .

本实施方式中,上述YIG谐振结构7为无源谐振结构,其利用YIG的高Q值特性提升与其耦合的第一调相臂2和第二调相臂4的Q值。In this embodiment, the above-mentioned YIG resonant structure 7 is a passive resonant structure, which utilizes the high Q value characteristic of YIG to improve the Q value of the first phase modulation arm 2 and the second phase modulation arm 4 coupled thereto.

在另一种实施方式中,如图6所示,耦合谐振模块包括有源负阻8。In another embodiment, as shown in FIG. 6 , the coupled resonance module includes an active negative resistance 8 .

本实施方式中,通过与第一调相臂2和第二调相臂4耦合的有源负阻弥补天线本体1、第一调相臂2和第二调相臂4上的无源损耗,以提升第一调相臂2和第二调相臂4的Q值。In this embodiment, the passive loss on the antenna body 1 , the first phase modulation arm 2 and the second phase modulation arm 4 is compensated by the active negative resistance coupled with the first phase modulation arm 2 and the second phase modulation arm 4 , In order to improve the Q value of the first phase modulation arm 2 and the second phase modulation arm 4 .

可选的,有源负阻8包括负反馈放大器81和耦合谐振枝节82,耦合谐振枝节82的第一端与负反馈放大器81的第一端连接,耦合谐振枝节82的第二端与负反馈放大器82的第二端连接。Optionally, the active negative resistance 8 includes a negative feedback amplifier 81 and a coupled resonance branch 82, the first end of the coupled resonance branch 82 is connected to the first end of the negative feedback amplifier 81, and the second end of the coupled resonance branch 82 is connected to the negative feedback. A second end of amplifier 82 is connected.

本实施方式中,设置负反馈放大器81,以根据天线本体1、第一调相臂2和第二调相臂4上的无源损耗进行负反馈,并通过与第一调相臂2和第二调相臂4耦合的耦合谐振枝节82对第一调相臂2和第二调相臂4的Q值产生影响,具体的,负反馈放大器81产生的负反馈电信号与天线本体1、第一调相臂2和第二调相臂4上的无源损耗呈正相关,且在耦合谐振枝节82的耦合作用下,第一调相臂2和第二调相臂4获取到的耦合电容值或者耦合电感值能够弥补天线本体1、第一调相臂2和第二调相臂4上的无源损耗,从而提升第一调相臂2和第二调相臂4的Q值。In this embodiment, a negative feedback amplifier 81 is set to perform negative feedback according to the passive losses on the antenna body 1 , the first phase modulation arm 2 and the second phase modulation arm 4 , and through the The coupling resonance branch 82 coupled by the two phase modulation arms 4 has an impact on the Q value of the first phase modulation arm 2 and the second phase modulation arm 4. Specifically, the negative feedback electrical signal generated by the negative feedback amplifier 81 is related to the antenna body 1, the The passive losses on the first phase modulation arm 2 and the second phase modulation arm 4 are positively correlated, and under the coupling action of the coupling resonance branch 82, the coupling capacitance value obtained by the first phase modulation arm 2 and the second phase modulation arm 4 Alternatively, the coupled inductance value can compensate for passive losses on the antenna body 1 , the first phase modulation arm 2 and the second phase modulation arm 4 , thereby improving the Q value of the first phase modulation arm 2 and the second phase modulation arm 4 .

本申请实施例中的电子设备可以是移动电子设备,也可以为非移动电子设备。示例性的,移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer,UMPC)、上网本或者个人数字助理(personal digital assistant,PDA)等,非移动电子设备可以为个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。The electronic device in this embodiment of the present application may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant). assistant, PDA), etc., the non-mobile electronic device may be a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

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。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

上面结合附图对本申请的实施例进行了描述,但是本申请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申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (10)

1.一种天线结构,其特征在于,包括:1. an antenna structure, is characterized in that, comprises: 天线本体,包括天线馈点和第一天线节点,所述第一天线节点与所述天线馈点之间的第一距离与所述天线结构的第一抑制频段中心频点匹配;an antenna body, including an antenna feed point and a first antenna node, and a first distance between the first antenna node and the antenna feed point matches the center frequency point of the first suppression frequency band of the antenna structure; 第一调相臂,所述第一调相臂的第一端与所述第一天线节点连接;a first phase modulation arm, the first end of the first phase modulation arm is connected to the first antenna node; 可调变容器,所述可调变容器与所述第一调相臂的第二端连接,其中,所述可调变容器用于在获取到第一预设电信号的情况下,将所述第一抑制频段中心频点调节为第一目标抑制频段中心频点,在所述第一调相臂获取到符合所述第一目标抑制频段中心频点的谐振频率的情况下,所述第一调相臂的电流相位与所述天线本体的电流相位相反。an adjustable variable vessel, the adjustable variable vessel is connected to the second end of the first phase modulation arm, wherein the adjustable variable vessel is used to convert all the The first suppression frequency band center frequency point is adjusted to the first target suppression frequency band center frequency point, and the The current phase of a phase modulation arm is opposite to the current phase of the antenna body. 2.根据权利要求1所述的天线结构,其特征在于,所述天线本体为环形天线,所述天线本体还包括第二天线节点,所述第二天线节点与所述天线馈点之间的第二距离等于所述第一距离,所述天线结构还包括:2 . The antenna structure according to claim 1 , wherein the antenna body is a loop antenna, and the antenna body further comprises a second antenna node, and a connection between the second antenna node and the antenna feed point is provided. 3 . The second distance is equal to the first distance, and the antenna structure further includes: 第二调相臂,所述第二调相臂的第一端与所述第二天线节点连接,所述第二调相臂的第二端与所述可调变容器的第二端连接,所述可调变容器的第一端与所述第一调相臂的第二端连接,其中,所述第一调相臂与所述第二调相臂沿第一对称线对称分布,所述天线馈点和所述可调变容器位于所述第一对称线上。a second phase modulation arm, the first end of the second phase modulation arm is connected to the second antenna node, the second end of the second phase modulation arm is connected to the second end of the adjustable variable container, The first end of the variable container is connected with the second end of the first phase adjustment arm, wherein the first phase adjustment arm and the second phase adjustment arm are symmetrically distributed along the first symmetry line, so The antenna feed point and the adjustable variable container are located on the first symmetry line. 3.根据权利要求1所述的天线结构,其特征在于,还包括:3. The antenna structure according to claim 1, further comprising: 第一开关,所述第一开关的第一端与所述第一天线节点连接,所述第一开关的第二端与所述第一调相臂的第一端连接;a first switch, the first end of the first switch is connected to the first antenna node, and the second end of the first switch is connected to the first end of the first phase modulation arm; 其中,在所述第一抑制频段中心频点与所述天线结构的工作频段之间的频率差小于预设频率值的情况下,所述第一开关的第一端和所述第一开关的第二端断开连接。Wherein, when the frequency difference between the center frequency point of the first suppression frequency band and the operating frequency band of the antenna structure is less than a preset frequency value, the first end of the first switch and the first end of the first switch The second end is disconnected. 4.根据权利要求3所述的天线结构,其特征在于,所述天线本体还包括第三天线节点,所述第三天线节点与所述天线馈点之间的第三距离与所述天线结构的第二抑制频段中心频点匹配;4 . The antenna structure according to claim 3 , wherein the antenna body further comprises a third antenna node, and a third distance between the third antenna node and the antenna feed point is related to the antenna structure. 5 . The center frequency point of the second suppression band is matched; 所述第一开关还包括第三端,所述第一开关的第三端与所述第三天线节点连接,在同一时间,所述第一开关的第二端与所述第一开关的第一端和第三端中的一个连通;The first switch further includes a third terminal, the third terminal of the first switch is connected to the third antenna node, and at the same time, the second terminal of the first switch is connected to the third terminal of the first switch. One end and one of the third ends are connected; 其中,在所述天线结构的目标抑制频段中心频点为所述第一抑制频段中心频点的情况下,所述第一开关的第一端和所述第一开关的第二端连通;Wherein, when the center frequency of the target suppression frequency band of the antenna structure is the center frequency of the first suppression frequency band, the first end of the first switch is connected to the second end of the first switch; 在所述天线结构的目标抑制频段中心频点为所述第二抑制频段中心频点的情况下,所述第一开关的第三端和所述第一开关的第二端连通,所述可调变容器用于在接收到第二预设电信号的情况下,将所述第二抑制频段中心频点调节为第二目标预设抑制频段中心频点,在所述第一调相臂获取到符合所述第二目标抑制频段中心频点的谐振频率的情况下,所述第一调相臂的电流相位与所述天线本体的电流相位相反。When the center frequency of the target suppression band of the antenna structure is the center frequency of the second suppression band, the third end of the first switch is connected to the second end of the first switch, and the optional The modulation container is used to adjust the center frequency point of the second suppression frequency band to the center frequency point of the second target preset suppression frequency band in the case of receiving the second preset electrical signal, and obtains from the first phase modulation arm When the resonant frequency conforms to the center frequency point of the second target suppression frequency band, the current phase of the first phase modulation arm is opposite to the current phase of the antenna body. 5.根据权利要求2所述的天线结构,其特征在于,还包括:耦合谐振模块,所述耦合谐振模块与所述第一调相臂和所述第二调相臂耦合。5 . The antenna structure according to claim 2 , further comprising: a coupling resonance module, wherein the coupling resonance module is coupled with the first phase modulation arm and the second phase modulation arm. 6 . 6.根据权利要求5所述的天线结构,其特征在于,所述耦合谐振模块设置于所述第一调相臂和所述第二调相臂的远离所述天线馈点的一侧。6 . The antenna structure according to claim 5 , wherein the coupling resonance module is disposed on a side of the first phase modulation arm and the second phase modulation arm away from the antenna feed point. 7 . 7.根据权利要求5或6所述的天线结构,其特征在于,所述耦合谐振模块包括钇铁石榴石铁氧体YIG谐振结构。7. The antenna structure according to claim 5 or 6, wherein the coupling resonance module comprises a yttrium iron garnet ferrite YIG resonance structure. 8.根据权利要求5或6所述的天线结构,其特征在于,所述耦合谐振模块包括有源负阻。8. The antenna structure according to claim 5 or 6, wherein the coupling resonance module comprises an active negative resistance. 9.根据权利要求8所述的天线结构,其特征在于,所述有源负阻包括负反馈放大器和耦合谐振枝节,所述耦合谐振枝节的第一端与所述负反馈放大器的第一端连接,所述耦合谐振枝节的第二端与所述负反馈放大器的第二端连接。9 . The antenna structure according to claim 8 , wherein the active negative resistance comprises a negative feedback amplifier and a coupled resonance branch, and the first end of the coupled resonance branch is connected to the first end of the negative feedback amplifier. 10 . connected, the second end of the coupling resonance branch is connected with the second end of the negative feedback amplifier. 10.一种电子设备,其特征在于,所述电子设备包括如权利要求1至9中任一项所述天线结构。10 . An electronic device, characterized in that, the electronic device comprises the antenna structure according to any one of claims 1 to 9 .
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629394A (en) * 2021-08-31 2021-11-09 山东炎一智能科技有限公司 Method and device for adjusting central frequency point frequency of antenna

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1335654A (en) * 2000-07-19 2002-02-13 松下电器产业株式会社 Antenna apparatus
EP1482647A2 (en) * 2003-05-28 2004-12-01 ATMEL Germany GmbH Circuit for phase modulation in a transponder based on back-scattering
KR20050053829A (en) * 2003-12-03 2005-06-10 엘지이노텍 주식회사 Dual band front end module
CN104113356A (en) * 2013-04-19 2014-10-22 联发科技(新加坡)私人有限公司 Wireless communication unit, radio frequency module and method for tuning wireless communication unit
CN108039919A (en) * 2018-01-10 2018-05-15 毕弟强 Adjustment method, device and the antenna system of antenna system
CN108718199A (en) * 2018-07-24 2018-10-30 广东电网有限责任公司 Antenna self-adaptive impedance matching box and matching process
CN109524786A (en) * 2018-09-20 2019-03-26 维沃移动通信有限公司 A kind of antenna and terminal
CN109660267A (en) * 2018-12-10 2019-04-19 维沃移动通信有限公司 A kind of antenna system and mobile terminal
CN209169377U (en) * 2018-11-29 2019-07-26 维沃移动通信有限公司 A kind of antenna and terminal device
CN210489828U (en) * 2019-12-06 2020-05-08 朴海燕 Isolated ground radiation antenna and MIMO antenna system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1335654A (en) * 2000-07-19 2002-02-13 松下电器产业株式会社 Antenna apparatus
EP1482647A2 (en) * 2003-05-28 2004-12-01 ATMEL Germany GmbH Circuit for phase modulation in a transponder based on back-scattering
KR20050053829A (en) * 2003-12-03 2005-06-10 엘지이노텍 주식회사 Dual band front end module
CN104113356A (en) * 2013-04-19 2014-10-22 联发科技(新加坡)私人有限公司 Wireless communication unit, radio frequency module and method for tuning wireless communication unit
CN108039919A (en) * 2018-01-10 2018-05-15 毕弟强 Adjustment method, device and the antenna system of antenna system
CN108718199A (en) * 2018-07-24 2018-10-30 广东电网有限责任公司 Antenna self-adaptive impedance matching box and matching process
CN109524786A (en) * 2018-09-20 2019-03-26 维沃移动通信有限公司 A kind of antenna and terminal
CN209169377U (en) * 2018-11-29 2019-07-26 维沃移动通信有限公司 A kind of antenna and terminal device
CN109660267A (en) * 2018-12-10 2019-04-19 维沃移动通信有限公司 A kind of antenna system and mobile terminal
CN210489828U (en) * 2019-12-06 2020-05-08 朴海燕 Isolated ground radiation antenna and MIMO antenna system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YULIANG ZHENG 等: ""Suppression of harmonic radiation of tunable Planar Inverted-F Antenna by ferroelectric varactor loading"", 《2008 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629394A (en) * 2021-08-31 2021-11-09 山东炎一智能科技有限公司 Method and device for adjusting central frequency point frequency of antenna

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