CN206480770U - Antenna and its match circuit for all-metal back-cover mobile phone - Google Patents

Antenna and its match circuit for all-metal back-cover mobile phone Download PDF

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CN206480770U
CN206480770U CN201720100954.9U CN201720100954U CN206480770U CN 206480770 U CN206480770 U CN 206480770U CN 201720100954 U CN201720100954 U CN 201720100954U CN 206480770 U CN206480770 U CN 206480770U
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antenna body
electric capacity
antenna
ground wire
capacitance
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袁涛
汪洪洋
黄冠龙
仇成伟
李兴华
范墨林
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Xidian University
Kunshan Ruixiang Xuntong Communication Technology Co Ltd
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Xidian University
Kunshan Ruixiang Xuntong Communication Technology Co Ltd
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Abstract

本实用新型公开一种用于全金属背盖手机的天线及其匹配电路,包括天线本体和匹配电路,所述天线本体包括第一至第三部分,所述天线本体的第一部分和第三部分均为圆弧形,该圆弧形部分对应的圆心角均为90°,所述天线本体的第二部分为长方形,所述天线本体的第二部分分别与天线本体的第一部分和第三部分相切,所述天线本体的第二部分在靠近天线本体的第一部分的一端设有第一接线点和第二接线点,所述第一接线点为所述天线本体的馈电点,天线本体的第二部分的中部设有第三至第五接线点,天线本体的第二部分在靠近天线本体的第三部分的一端设有第六至第八接线点。本实用新型信号传输效果好,能够传输三个频段信号。

The utility model discloses an antenna and a matching circuit for a mobile phone with a full metal back cover, comprising an antenna body and a matching circuit, the antenna body includes first to third parts, the first part and the third part of the antenna body All are arc-shaped, and the central angle corresponding to the arc-shaped part is 90°. The second part of the antenna body is a rectangle, and the second part of the antenna body is respectively connected to the first part and the third part of the antenna body. Tangentially, the second part of the antenna body is provided with a first connection point and a second connection point at an end close to the first part of the antenna body, the first connection point is the feeding point of the antenna body, and the antenna body The middle part of the second part of the antenna body is provided with the third to fifth connection points, and the second part of the antenna body is provided with sixth to eighth connection points at one end close to the third part of the antenna body. The utility model has good signal transmission effect and can transmit signals of three frequency bands.

Description

用于全金属背盖手机的天线及其匹配电路Antenna and its matching circuit for mobile phone with full metal back cover

技术领域technical field

本实用新型涉及一种用于全金属背盖手机的天线及其匹配电路。The utility model relates to an antenna and a matching circuit for an all-metal back cover mobile phone.

背景技术Background technique

随着科技的发展和人们生活水平的提高,手机的应用也越来越广泛,人们对手机的功能和性能的需求也越来越高。现有的手机一般采用塑料制作手机壳体,这种手机耐摔性能较差,导致使用寿命较低。为了解决这一问题,有些手机开始使用金属制作手机壳体,这种手机的天线本体接收和发射信号较差,会降低手机的通讯效果。此外,现有的天线本体只能传输单一频段的信号,导致手机通讯功能受到限制。因此,有必要提供一种新的方式来解决上述问题。With the development of science and technology and the improvement of people's living standards, the application of mobile phones is becoming more and more extensive, and people's requirements for the functions and performance of mobile phones are also getting higher and higher. Existing mobile phones generally use plastics to make mobile phone shells, and this kind of mobile phone has poor drop resistance, resulting in a low service life. In order to solve this problem, some mobile phones begin to use metal to make the mobile phone casing. The antenna body of this mobile phone receives and transmits signals poorly, which will reduce the communication effect of the mobile phone. In addition, the existing antenna body can only transmit signals of a single frequency band, which limits the communication function of the mobile phone. Therefore, it is necessary to provide a new way to solve the above problems.

实用新型内容Utility model content

本实用新型的目的在于提供一种信号传输效果好、能够传输多频段信号的用于全金属背盖手机的天线及其匹配电路。The purpose of the utility model is to provide an antenna and a matching circuit for an all-metal back mobile phone with good signal transmission effect and capable of transmitting multi-band signals.

为了实现上述目的,本实用新型所采用的技术方案如下:In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

一种用于全金属背盖手机的天线及其匹配电路,包括:天线本体和匹配电路,所述天线本体包括第一至第三部分,所述天线本体的第一部分和第三部分均为圆弧形,该圆弧形部分对应的圆心角均为90°,所述天线本体的第二部分为长方形,所述天线本体的第二部分分别与天线本体的第一部分和第三部分相切,所述天线本体的第二部分在靠近天线本体的第一部分的一端设有第一接线点和第二接线点,所述第一接线点为所述天线本体的馈电点,天线本体的第二部分的中部设有第三至第五接线点,天线本体的第二部分在靠近天线本体的第三部分的一端设有第六至第八接线点。An antenna and a matching circuit for a mobile phone with a full metal back cover, comprising: an antenna body and a matching circuit, the antenna body includes first to third parts, the first part and the third part of the antenna body are circular Arc-shaped, the central angles corresponding to the arc-shaped part are both 90°, the second part of the antenna body is rectangular, and the second part of the antenna body is respectively tangent to the first part and the third part of the antenna body, The second part of the antenna body is provided with a first connection point and a second connection point at one end close to the first part of the antenna body, the first connection point is the feeding point of the antenna body, and the second connection point of the antenna body is The middle part of the part is provided with the third to the fifth connection points, and the second part of the antenna body is provided with the sixth to the eighth connection points at an end close to the third part of the antenna body.

优选的,所述匹配电路包括第一至第五零欧姆电阻R5、第一至第八电容、第一电感、第二电感和单刀双掷开关,所述单刀双掷开关包括公共端、第一投掷端和第二投掷端,所述天线本体的第一接线点与第一零欧姆电阻的第一端连接,所述第一零欧姆电阻的第二端与地线之间连接第一电感;所述天线本体的第二接线点与第一电容的第一接线端连接,第一电容的第二接线端与所述单刀双掷开关的公共端连接,单刀双掷开关的第一投掷端与地线之间串联连接第二电感和第二零欧姆电阻,单刀双掷开关的第二投掷端与地线之间串联连接第二电容和第三零欧姆电阻;所述天线本体的第四接线点与地线之间连接第三电容;所述天线本体的第五接线点与地线之间连接有第四电容;所述天线本体的第六接线点与地线之间串联连接有第四零欧姆电阻R4和第五零欧姆电阻R5;所述天线本体的第七接线点与地线之间串联连接有第五电容和第六电容;所述天线本体的第八接线点与第七电容的第一端连接,第七电容的第二端与地线之间连接有第八电容。Preferably, the matching circuit includes first to fifth zero-ohm resistors R5, first to eighth capacitors, a first inductor, a second inductor, and a single-pole double-throw switch, and the single-pole double-throw switch includes a common terminal, a first a throwing end and a second throwing end, the first connection point of the antenna body is connected to the first end of the first zero-ohm resistor, and the first inductance is connected between the second end of the first zero-ohm resistor and the ground wire; The second terminal of the antenna body is connected to the first terminal of the first capacitor, the second terminal of the first capacitor is connected to the common terminal of the SPDT switch, and the first throw terminal of the SPDT switch is connected to the common terminal of the SPDT switch. The second inductance and the second zero-ohm resistor are connected in series between the ground wires, the second capacitor and the third zero-ohm resistor are connected in series between the second throwing end of the SPDT switch and the ground wire; the fourth wiring of the antenna body The third capacitor is connected between the point and the ground wire; the fourth capacitor is connected in series between the fifth connection point of the antenna body and the ground wire; the fourth capacitor is connected in series between the sixth connection point of the antenna body and the ground wire. Zero-ohm resistance R4 and the fifth zero-ohm resistance R5; the fifth capacitor and the sixth capacitor are connected in series between the seventh connection point of the antenna body and the ground wire; the eighth connection point of the antenna body and the seventh capacitor The first end of the seventh capacitor is connected with the eighth capacitor between the second end of the seventh capacitor and the ground.

优选的,所述第一电容的电容值为1.3pf,第二电容的电容值为5pf,第三电容的电容值为1pf,第四电容的电容值为1pf,第五电容的电容值为3pf,第六电容的电容值为2pf,第七电容的电容值为0.5pf,第八电容的电容值为3pf,第一电感的电感值为2nh,第二电感的电感值为7nh。Preferably, the capacitance value of the first capacitor is 1.3pf, the capacitance value of the second capacitor is 5pf, the capacitance value of the third capacitor is 1pf, the capacitance value of the fourth capacitor is 1pf, and the capacitance value of the fifth capacitor is 3pf , the capacitance value of the sixth capacitor is 2pf, the capacitance value of the seventh capacitor is 0.5pf, the capacitance value of the eighth capacitor is 3pf, the inductance value of the first inductor is 2nh, and the inductance value of the second inductor is 7nh.

优选的,所述天线及其匹配电路设置在全金属背盖手机的壳体内部,所述壳体为全金属壳体,所述壳体包括背面部分、左侧面部分、右侧面部分、上侧面部分和下侧面部分,所述壳体的背面部分在靠近所述上侧面部分的一端开设有第一槽体,所述壳体的背面部分在靠近所述下侧面部分的一端开设有第二槽体,所述第一槽体和第二槽体的形状与所述天线本体的形状相同。Preferably, the antenna and its matching circuit are arranged inside the casing of the mobile phone with a full metal back cover, the casing is a full metal casing, and the casing includes a back part, a left side part, a right side part, The upper side part and the lower side part, the back part of the housing is provided with a first groove at one end close to the upper side part, and the back part of the housing is provided with a first groove at one end close to the lower side part. Two slots, the shape of the first slot and the second slot is the same as that of the antenna body.

与现有技术相比,本实用新型用于全金属背盖手机的天线及其匹配电路的有益效果在于:本实用新型信号传输效果好,能够传输三个频段信号。Compared with the prior art, the beneficial effect of the utility model for the antenna and matching circuit of the all-metal back mobile phone is that the utility model has good signal transmission effect and can transmit signals of three frequency bands.

附图说明Description of drawings

图1为本实用新型用于全金属背盖手机的天线及其匹配电路的电路原理图;Fig. 1 is the circuit schematic diagram of the antenna and the matching circuit thereof for the utility model for all-metal back cover mobile phone;

图2为本实用新型所述天线本体的结构示意图;Fig. 2 is a schematic structural view of the antenna body described in the present invention;

图3为本实用新型所述壳体的结构示意图;Fig. 3 is a structural schematic diagram of the housing described in the present invention;

图4为本实用新型的S参数仿真结果图;Fig. 4 is the S parameter simulation result figure of the present utility model;

图5为本实用新型的S参数仿真结果图。Fig. 5 is the S parameter simulation result figure of the utility model.

具体实施方式detailed description

下面结合具体实施例对本实用新型进一步进行描述。The utility model is further described below in conjunction with specific embodiments.

请参阅图1至图5所示,本实用新型提供一种用于全金属背盖手机的天线及其匹配电路,包括:天线本体1和匹配电路,所述天线本体1包括第一至第三部分,所述天线本体的第一部分101和第三部分103均为圆弧形,该圆弧形部分对应的圆心角均为90°,所述天线本体1的第二部分102为长方形,所述天线本体1的第二部分102分别与天线本体1的第一部分101和第三部分103相切,所述天线本体1的第二部分102在靠近天线本体1的第一部分101的一端设有第一接线点和第二接线点,所述第一接线点为所述天线本体1的馈电点,天线本体1的第二部分102的中部设有第三至第五接线点,天线本体1的第二部分102在靠近天线本体1的第三部分103的一端设有第六至第八接线点。Please refer to Fig. 1 to Fig. 5, the utility model provides a kind of antenna and its matching circuit for all-metal back mobile phone, comprising: antenna body 1 and matching circuit, said antenna body 1 includes first to third Part, the first part 101 and the third part 103 of the antenna body are both arc-shaped, and the central angles corresponding to the arc-shaped parts are both 90°, the second part 102 of the antenna body 1 is rectangular, and the The second part 102 of the antenna body 1 is respectively tangent to the first part 101 and the third part 103 of the antenna body 1, and the second part 102 of the antenna body 1 is provided with a first connection point and the second connection point, the first connection point is the feeding point of the antenna body 1, the middle part of the second part 102 of the antenna body 1 is provided with the third to fifth connection points, the first connection point of the antenna body 1 The second part 102 has sixth to eighth connection points at one end of the third part 103 close to the antenna body 1 .

在本实用新型中,所述匹配电路包括第一至第五零欧姆电阻R5、第一至第八电容、第一电感L1、第二电感L2和单刀双掷开关K,所述单刀双掷开关K包括公共端、第一投掷端和第二投掷端,所述天线本体1的第一接线点与第一零欧姆电阻R1的第一端连接,所述第一零欧姆电阻R1的第二端与地线之间连接第一电感L1,第一零欧姆电阻R1的第二端形成后端电路的馈电连接端;所述天线本体1的第二接线点与第一电容C1的第一接线端连接,第一电容C1的第二接线端与所述单刀双掷开关K的公共端连接,单刀双掷开关K的第一投掷端与地线之间串联连接第二电感L2和第二零欧姆电阻R2,单刀双掷开关K的第二投掷端与地线之间串联连接第二电容C2和第三零欧姆电阻R3;所述天线本体1的第四接线点与地线之间连接第三电容C3;所述天线本体1的第五接线点与地线之间连接有第四电容C4;所述天线本体1的第六接线点与地线之间串联连接有第四零欧姆电阻R4和第五零欧姆电阻R5;所述天线本体1的第七接线点与地线之间串联连接有第五电容C5和第六电容C6;所述天线本体1的第八接线点与第七电容C7的第一端连接,第七电容C7的第二端与地线之间连接有第八电容C8,第七电容C7的第二端形成WBG馈电端。In the utility model, the matching circuit includes first to fifth zero-ohm resistors R5, first to eighth capacitors, first inductance L1, second inductance L2 and single-pole double-throw switch K, and the single-pole double-throw switch K includes a common end, a first throwing end and a second throwing end, the first connection point of the antenna body 1 is connected to the first end of the first zero-ohm resistor R1, and the second end of the first zero-ohm resistor R1 The first inductor L1 is connected to the ground wire, and the second end of the first zero-ohm resistor R1 forms the feed connection end of the back-end circuit; the second connection point of the antenna body 1 is connected to the first connection point of the first capacitor C1 The second terminal of the first capacitor C1 is connected to the common terminal of the single-pole double-throw switch K, and the second inductance L2 and the second zero are connected in series between the first throwing terminal of the single-pole double-throw switch K and the ground wire. Ohmic resistor R2, the second capacitor C2 and the third zero-ohm resistor R3 are connected in series between the second throwing end of the SPDT switch K and the ground wire; the fourth connection point of the antenna body 1 is connected to the ground wire Three capacitors C3; a fourth capacitor C4 is connected between the fifth connection point of the antenna body 1 and the ground wire; a fourth zero-ohm resistor R4 is connected in series between the sixth connection point of the antenna body 1 and the ground wire and the fifth zero-ohm resistor R5; the fifth capacitor C5 and the sixth capacitor C6 are connected in series between the seventh connection point of the antenna body 1 and the ground wire; the eighth connection point of the antenna body 1 and the seventh capacitor The first end of C7 is connected, the eighth capacitor C8 is connected between the second end of the seventh capacitor C7 and the ground line, and the second end of the seventh capacitor C7 forms a WBG feeding end.

其中,第一接线点为天线本体1的馈电点,其传输的信号中的纹波能够通过第一电感L1滤除,所述第一零欧姆电阻R1的设置有利于增加电长度,能优化GPS频段的辐射效果,其它的电阻、电容和电感的设置有助于进一步滤除杂波和增强电磁波的辐射效果。Wherein, the first connection point is the feeding point of the antenna body 1, and the ripple in the signal transmitted by it can be filtered out by the first inductance L1, and the setting of the first zero-ohm resistance R1 is beneficial to increase the electrical length, and can optimize The radiation effect of the GPS frequency band, other settings of resistance, capacitance and inductance help to further filter out clutter and enhance the radiation effect of electromagnetic waves.

在本实施例中,所述第一电容C1的电容值为1.3pf,第二电容C2的电容值为5pf,第三电容C3的电容值为1pf,第四电容C4的电容值为1pf,第五电容C5的电容值为3pf,第六电容C6的电容值为2pf,第七电容C7的电容值为0.5pf,第八电容C8的电容值为3pf,第一电感L1的电感值为2nh,第二电感L2的电感值为7nh。In this embodiment, the first capacitor C1 has a capacitance of 1.3pf, the second capacitor C2 has a capacitance of 5pf, the third capacitor C3 has a capacitance of 1pf, and the fourth capacitor C4 has a capacitance of 1pf. The capacitance value of the fifth capacitor C5 is 3pf, the capacitance value of the sixth capacitor C6 is 2pf, the capacitance value of the seventh capacitor C7 is 0.5pf, the capacitance value of the eighth capacitor C8 is 3pf, the inductance value of the first inductor L1 is 2nh, The inductance value of the second inductor L2 is 7nh.

本实用新型所述天线及其匹配电路设置在全金属背盖手机的壳体2内部,所述壳体2为全金属壳体,所述壳体2包括背面部分201、左侧面部分202、右侧面部分203、上侧面部分204和下侧面部分205,所述壳体2的背面部分201在靠近所述上侧面部分204的一端开设有第一槽体206,所述壳体2的背面部分201在靠近所述下侧面部分205的一端开设有第二槽体207,所述第一槽体206和第二槽体207的形状与所述天线本体1的形状相同。The antenna and its matching circuit of the utility model are arranged inside the casing 2 of the all-metal back cover mobile phone, the casing 2 is an all-metal casing, and the casing 2 includes a back part 201, a left side part 202, The right side part 203 , the upper side part 204 and the lower side part 205 , the back part 201 of the housing 2 is provided with a first groove 206 at one end close to the upper side part 204 , the back side of the housing 2 The portion 201 is provided with a second groove 207 at one end close to the lower side portion 205 , and the shape of the first groove 206 and the second groove 207 is the same as that of the antenna body 1 .

在实际应用时,当单刀双掷开关K的公共端与单刀双掷开关K的第一投掷端连接时,对应的S参数仿真结果图如图4所示;当单刀双掷开关K的公共端与单刀双掷开关K的第二投掷端连接时,对应的S参数仿真结果图如图5所示。由图4和图5可知,通过单刀双掷开关K的引入,天线系统能够实现1575MHz和2400MHz和2600MHZ的三个频段的辐射,能够覆盖BT,GPS,WIFI和LTE高频段三种制式的电磁波的辐射。In actual application, when the common end of the SPDT switch K is connected to the first throwing end of the SPDT switch K, the corresponding S-parameter simulation results are shown in Figure 4; when the common end of the SPDT switch K When it is connected to the second throwing end of the single-pole double-throw switch K, the corresponding S-parameter simulation results are shown in FIG. 5 . It can be seen from Figure 4 and Figure 5 that through the introduction of SPDT switch K, the antenna system can realize the radiation of the three frequency bands of 1575MHz, 2400MHz and 2600MHZ, and can cover the electromagnetic waves of the three high-frequency bands of BT, GPS, WIFI and LTE. radiation.

以上示意性的对本实用新型及其实施方式进行了描述,该描述没有限制性,附图中所示的也只是本实用新型的实施方式之一,实际的结构并不局限于此。所以,如果本领域的普通技术人员受其启示,在不脱离本实用新型创造宗旨的情况下,不经创造性的设计出与该技术方案相似的结构方式及实施例,均应属于本实用新型的保护范围。The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural method and an embodiment similar to the technical solution, it shall all belong to the utility model. protected range.

Claims (4)

1. a kind of antenna and its match circuit for all-metal back-cover mobile phone, it is characterised in that including:Antenna body and matching Circuit, the antenna body includes first to Part III, and the Part I and Part III of the antenna body are circular arc Shape, the corresponding central angle of the circular arc shaped portion is 90 °, and the Part II of the antenna body is rectangle, the antenna sheet Part I and Part III of the Part II of body respectively with antenna body are tangent, the Part II of the antenna body by One end of the Part I of nearly antenna body is provided with the first wiring point and the second wiring point, and first wiring point is the antenna The distributing point of body, the middle part of the Part II of antenna body is provided with the 3rd to the 5th wiring point, the Part II of antenna body The the 6th to the 8th wiring point is provided with one end of the Part III close to antenna body.
2. it is used for the antenna and its match circuit of all-metal back-cover mobile phone as claimed in claim 1, it is characterised in that the matching Circuit is opened including the first to the 5th Zero-ohm resistor R5, the first to the 8th electric capacity, the first inductance, the second inductance and single-pole double throw Close, the single-pole double-throw switch (SPDT) includes common port, the first throwing end and second and throws end, the first wiring point of the antenna body It is connected with the first end of the first Zero-ohm resistor, the first electricity is connected between the second end of first Zero-ohm resistor and ground wire Sense;Second wiring point of the antenna body is connected with the first terminals of the first electric capacity, the second terminals of the first electric capacity with The common port connection of the single-pole double-throw switch (SPDT), is connected in series the second electricity between the first throwing end of single-pole double-throw switch (SPDT) and ground wire Sense and the second Zero-ohm resistor, the second electric capacity and the 3rd 0 are connected in series between the second throwing end of single-pole double-throw switch (SPDT) and ground wire Ohmic resistance;The 3rd electric capacity is connected between the 4th wiring point and ground wire of the antenna body;The 5th of the antenna body connects The 4th electric capacity is connected between line point and ground wire;The 4th is connected in series between the 6th wiring point and ground wire of the antenna body Zero-ohm resistor R4 and the 5th Zero-ohm resistor R5;Is connected in series between the 7th wiring point and ground wire of the antenna body Five electric capacity and the 6th electric capacity;8th wiring point of the antenna body is connected with the first end of the 7th electric capacity, and the of the 7th electric capacity The 8th electric capacity is connected between two ends and ground wire.
3. it is used for the antenna and its match circuit of all-metal back-cover mobile phone as claimed in claim 2, it is characterised in that described first The capacitance of electric capacity is 1.3pf, and the capacitance of the second electric capacity is 5pf, and the capacitance of the 3rd electric capacity is 1pf, the electricity of the 4th electric capacity Capacitance is 1pf, and the capacitance of the 5th electric capacity is 3pf, and the capacitance of the 6th electric capacity is 2pf, and the capacitance of the 7th electric capacity is 0.5pf, the capacitance of the 8th electric capacity is 3pf, and the inductance value of the first inductance is 2nh, and the inductance value of the second inductance is 7nh.
4. it is used for the antenna and its match circuit of all-metal back-cover mobile phone as claimed in claim 3, it is characterised in that it is arranged on The enclosure interior of all-metal back-cover mobile phone, the housing is all-metal housing, and the housing includes back portion, left side face Point, right flank part, upper side part and downside part, the back portion of the housing is close to the upper side part One end offers the first cell body, and the back portion of the housing offers the second groove in one end close to the downside part Body, the shape of first cell body and the second cell body is identical with the shape of the antenna body.
CN201720100954.9U 2017-01-24 2017-01-24 Antenna and its match circuit for all-metal back-cover mobile phone Active CN206480770U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106602269A (en) * 2017-01-24 2017-04-26 昆山睿翔讯通通信技术有限公司 All-metal back cover mobile phone antenna and coupling circuit thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106602269A (en) * 2017-01-24 2017-04-26 昆山睿翔讯通通信技术有限公司 All-metal back cover mobile phone antenna and coupling circuit thereof

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Patentee before: KUNSHAN INNOVATION RESEARCH INSTITUTE OF XIDIAN University