CN104201459A - Multi-band passive antenna in malicious environment - Google Patents
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Abstract
本发明公开了一种恶劣环境下的多频段寄生天线，涉及手机天线领域。本发明包括一塑料手机后盖、设置于塑料手机后盖上的单极天线和寄生天线。所述单极天线包括主馈电点接入部分、第一单极部分和第二单极部分，呈“T”字型；所述寄生天线包括地馈电点接入部分、第一折叠部分、寄生主体部分、第二折叠部分和结束部分；第一折叠部分、寄生主体部分、第二折叠部分和结束部分都位于第一单极部分、第二单极部分所在直线未有主馈电点接入部分的一边。本发明有效地解决了因移动手机的空间被不断的压缩，而导致手机内部环境复杂，进而导致手机天线性能不佳的问题，有效地改善移动手机通信性能，提高其使用质量。
The invention discloses a multi-band parasitic antenna in harsh environments, and relates to the field of mobile phone antennas. The invention comprises a plastic mobile phone rear cover, a monopole antenna and a parasitic antenna arranged on the plastic mobile phone rear cover. The monopole antenna includes a main feed point access part, a first monopole part and a second monopole part in a "T"shape; the parasitic antenna includes a ground feed point access part, a first folding part , the parasitic body part, the second folded part and the end part; the first folded part, the parasitic body part, the second folded part and the end part are all located in the first monopole part, and the line where the second monopole part is located has no main feed point side of the access section. The invention effectively solves the problem that the internal environment of the mobile phone is complex due to the continuous compression of the space of the mobile phone, and further leads to the poor performance of the mobile phone antenna, effectively improves the communication performance of the mobile phone, and improves its use quality.
Description
技术领域 technical field
本发明涉及手机天线领域，尤其是一种在手机内部恶劣环境下的多频段寄生天线。 The present invention relates to the field of mobile phone antennas, especially a multi-band parasitic antenna in the harsh environment inside the mobile phone.
背景技术 Background technique
随着移动通信技术的不断进步和人们的审美观不断提高，通信设备为了适应市场而百般变化。而设备的小型化则是一个不断挑战极限的话题。于是移动设备的天线区域的空间不断地被压缩，主板的位置也愈加寸土寸金，各种器件密集的放置使得天线系统的环境愈演愈劣。 With the continuous advancement of mobile communication technology and the continuous improvement of people's aesthetics, communication equipment has changed in various ways in order to adapt to the market. The miniaturization of equipment is a topic that constantly challenges the limit. As a result, the space in the antenna area of mobile devices is constantly being compressed, and the location of the motherboard is becoming more and more expensive. The dense placement of various components makes the environment of the antenna system worse and worse.
目前已经存在的天线类型主要以PIFA、IFA、monopole为主，这些传统的天线形式套用以往的经验来改变patten变得越来越吃力。其中，倒F天线受辐射原理所限制，而单极天线有靠近金属器件就性能骤降的缺点。 The existing antenna types are mainly PIFA, IFA, and monopole. It is becoming more and more difficult for these traditional antenna forms to apply past experience to change the patten. Among them, the inverted-F antenna is limited by the principle of radiation, and the monopole antenna has the disadvantage of a sudden drop in performance when it is close to a metal device.
发明内容 Contents of the invention
由于移动手机的空间被不断的压缩，移动手机天线区域被放置含有金属成分的器件，如扬声器，USB插孔等器件，这类器件往往对天线系统的辐射有影响，进而影响了移动手机的通信性能。为了解决此移动手机因环境复杂而导致手机天线性能不佳的问题，本发明提供一种恶劣环境下的多频段寄生天线。 Due to the continuous compression of the space of mobile phones, devices containing metal components are placed in the antenna area of mobile phones, such as speakers, USB jacks and other devices. These devices often have an impact on the radiation of the antenna system, which in turn affects the communication of mobile phones. performance. In order to solve the problem of poor mobile phone antenna performance due to the complex environment of the mobile phone, the invention provides a multi-band parasitic antenna in harsh environments.
本发明的技术方案如下： The technical scheme of the present invention is as follows:
本发明为一种恶劣环境下的多频段寄生天线，包括一塑料手机后盖、设置于塑料手机后盖上的单极天线和寄生天线； The present invention is a multi-band parasitic antenna in a harsh environment, comprising a plastic mobile phone back cover, a monopole antenna and a parasitic antenna arranged on the plastic mobile phone back cover;
所述单极天线包括主馈电点接入部分、第一单极部分和第二单极部分；主馈电点接入部分的一端连有一主馈电点，另一端与第一单极部分、第二单极部分相连，其中，第一单极部分、第二单极部分的走向在一条直线上且与主馈电点接入部分的走向垂直，单极天线呈“T”字型； The monopole antenna includes a main feed point access part, a first monopole part and a second monopole part; one end of the main feed point access part is connected with a main feed point, and the other end is connected to the first monopole part , The second monopole part is connected, wherein, the direction of the first monopole part and the second monopole part are on a straight line and perpendicular to the direction of the access part of the main feed point, and the monopole antenna is in the shape of "T";
所述寄生天线包括地馈电点接入部分、第一折叠部分、寄生主体部分、第二折叠部分和结束部分；地馈电点接入部分的一端连有一地馈电点相连，另一端通过第一折叠部分与寄生主体部分的一端相连,寄生主体部分的另一端通过第二折叠部分与结束部分的一端相连；地馈电点接入部分的走向与第一单极部分的走在一条直线上，寄生主体部分的走向、结束部分的走向和第一单极部分的走向三者平行，其中，第一折叠部分、寄生主体部分、第二折叠部分和结束部分都位于第一单极部分、第二单极部分所在直线未有主馈电点接入部分的一边。 The parasitic antenna includes a ground feed point access part, a first folded part, a parasitic body part, a second folded part and an end part; one end of the ground feed point access part is connected to a ground feed point, and the other end is connected through The first folding part is connected to one end of the parasitic main part, and the other end of the parasitic main part is connected to one end of the end part through the second folding part; Above, the direction of the parasitic body part, the direction of the end part and the direction of the first monopole part are parallel, wherein the first folded part, the parasitic body part, the second folded part and the end part are all located in the first monopole part, The side of the straight line where the second unipolar part is not connected to the main feed point.
进一步地，所述塑料手机后盖具有相等面积的左边部分和右边部分；所述主馈电点位于塑料手机后盖的右边部分，且靠近塑料手机后盖的左右部分的分界位置；所述地馈电点位于塑料手机后盖的左边部分，且远离塑料手机后盖的左右部分的分界位置。 Further, the plastic mobile phone back cover has a left part and a right part with equal areas; the main feeding point is located on the right part of the plastic mobile phone back cover, and is close to the boundary position of the left and right parts of the plastic mobile phone back cover; the ground The feed point is located at the left part of the plastic mobile phone back cover and away from the boundary between the left and right parts of the plastic mobile phone back cover.
进一步地，所述主馈电点与塑料手机后盖中距离最短的一边的距离不小于所述恶劣环境下的多频段寄生天线被调试频段中最低频率的四分之一波长。 Further, the distance between the main feeding point and the shortest side of the back cover of the plastic mobile phone is not less than a quarter wavelength of the lowest frequency in the debugged frequency band of the multi-band parasitic antenna in harsh environments.
进一步地，所述寄生主体部分与地馈电点接入部分的距离为2.85mm，结束部分与地馈电点接入部分的距离为1.30mm。 Further, the distance between the parasitic main body part and the access part of the ground feed point is 2.85 mm, and the distance between the end part and the access part of the ground feed point is 1.30 mm.
进一步地，所述寄生天线与单极天线耦合产生的第一谐振频率R1的波长为850MHz的四分之一波长。 Further, the wavelength of the first resonant frequency R1 generated by the coupling of the parasitic antenna and the monopole antenna is a quarter wavelength of 850 MHz.
进一步地，所述寄生天线从地馈电点到第二折叠部分的长度、结束部分与第二单极部分的距离、主馈电点接入部分的长度，这三者之和为所述寄生天线与单极天线耦合产生的第二谐振频率R2的四分之一波长。 Further, the sum of the length of the parasitic antenna from the ground feeding point to the second folding part, the distance between the end part and the second monopole part, and the length of the main feeding point access part is the parasitic antenna A quarter wavelength of the second resonant frequency R2 generated by the coupling between the antenna and the monopole antenna.
进一步地，所述第一单极部分未与主馈电点接入部分相连的一端，此端到主馈电点的距离为所述寄生天线与单极天线耦合产生的第三谐振频率R3的四分之一波长；所述第二单极部分未与主馈电点接入部分相连的一端，此端到主馈电点的距离为所述寄生天线与单极天线耦合产生的第三谐振频率R3的四分之一波长。 Further, the end of the first monopole part that is not connected to the access part of the main feed point, the distance from this end to the main feed point is the third resonant frequency R3 generated by the coupling between the parasitic antenna and the monopole antenna Quarter wavelength; the end of the second monopole part that is not connected to the main feed point access part, the distance from this end to the main feed point is the third resonance generated by the coupling between the parasitic antenna and the monopole antenna A quarter wavelength of frequency R3.
进一步地，所述所述寄生天线与单极天线耦合产生的第五谐振频率R5的波长为2450MHz的四分之一波长。 Further, the wavelength of the fifth resonant frequency R5 generated by the coupling of the parasitic antenna and the monopole antenna is a quarter wavelength of 2450 MHz.
进一步地，以主馈电点接入部分为界将塑料手机后盖分为包含第一单极部分的左部分和包含第二单极部分的右部分；塑料手机后盖的左部分设置有一块小板，小板上设置有USB插孔、麦克风、耳机插孔和所述的地馈电点，其中，小板覆盖着寄生天线的一部分；塑料手机后盖的右部分设置有主板、扬声器支架和设置在扬声器支架上的扬声器，其中，主板上设置有所述的主馈电点，扬声器支架覆盖着单极天线。 Further, the plastic mobile phone back cover is divided into a left part containing the first unipolar part and a right part containing the second unipolar part based on the access part of the main feed point; the left part of the plastic mobile phone back cover is provided with a A small board, the small board is provided with a USB jack, a microphone, an earphone jack and the ground feed point, wherein the small board covers a part of the parasitic antenna; the right part of the plastic mobile phone back cover is provided with a main board and a loudspeaker bracket and the loudspeaker arranged on the loudspeaker bracket, wherein the main feed point is arranged on the main board, and the loudspeaker bracket is covered with a monopole antenna.
本发明的有益效果： Beneficial effects of the present invention:
1、寄生天线与单极天线的配合，使具有本发明的手机能够具有宽带宽，通信高效率，亦即通信质量高； 1. The cooperation of the parasitic antenna and the monopole antenna enables the mobile phone with the present invention to have wide bandwidth and high communication efficiency, that is, the communication quality is high;
2、塑料手机后盖的左部分设置有USB插孔、麦克风、耳机插孔和所述的地馈电点；塑料手机后盖的右部分设置有主板、扬声器支架和设置在扬声器支架上的扬声器，其中，主板上设置有所述的主馈电点，扬声器支架覆盖着单极天线；塑料手机后盖的左部分和右部分的充分利用，有效地解决了手机内部空间不足等问题，并且扬声器支架而非其他PCB覆盖着单极天线，可以减少扬声器对单极天线产生的干扰，保证天线的通信性能。 2. The left part of the plastic mobile phone back cover is provided with a USB jack, a microphone, an earphone jack and the ground feed point; the right part of the plastic mobile phone back cover is provided with a main board, a speaker bracket and a speaker set on the speaker bracket , wherein the main feed point is set on the main board, and the speaker bracket is covered with a monopole antenna; the left and right parts of the plastic mobile phone back cover are fully utilized to effectively solve the problems of insufficient internal space of the mobile phone, and the speaker The bracket instead of other PCBs covers the monopole antenna, which can reduce the interference of the speaker to the monopole antenna and ensure the communication performance of the antenna. the
3、含金属的器件如USB插孔、麦克风和耳机插孔设置在寄生天线周围而其单极天线周围，由于寄生天线由地馈电点引出，故只要寄生天线良好接地，其他周围的含金属的器件诸如USB插孔7、麦克风8、耳机插孔9对本发明所述的天线的性能就无明显影响，因此，第一使具有本发明的手机的内部空间得到了最大化的利用，二来又保证了通信的质量。 3. Metal-containing devices such as USB jacks, microphones and headphone jacks are arranged around the parasitic antenna and around the monopole antenna. Since the parasitic antenna is drawn from the ground feed point, as long as the parasitic antenna is well grounded, other surrounding metal-containing Devices such as USB jack 7, microphone 8, and earphone jack 9 have no significant impact on the performance of the antenna of the present invention. Therefore, firstly, the internal space of the mobile phone with the present invention is maximized, and secondly, It also ensures the quality of communication. ``
附图说明 Description of drawings
图1为塑料手机后盖的部分结构示意图； Fig. 1 is a partial structural schematic diagram of a plastic mobile phone back cover;
图2为包含单极天线和寄生天线的塑料手机后盖的部分结构示意图； Figure 2 is a partial structural schematic diagram of a plastic mobile phone back cover including a monopole antenna and a parasitic antenna;
图3为包含小板和主板的塑料手机后盖的部分结构示意图； Fig. 3 is a partial structural schematic diagram of a plastic mobile phone back cover including a small board and a main board;
图4为本发明所述的恶劣环境下的多频段寄生天线的S参数图。 Fig. 4 is an S-parameter diagram of the multi-band parasitic antenna in a harsh environment according to the present invention.
具体实施方式 Detailed ways
为了更好地说明本发明，现结合实施例与附图作进一步说明。 In order to better illustrate the present invention, further description will now be made in conjunction with the embodiments and accompanying drawings.
本发明为一种恶劣环境下的多频段寄生天线。 The invention is a multi-band parasitic antenna in harsh environment.
如图1所示，本发明包括一塑料手机后盖1。 As shown in FIG. 1 , the present invention includes a plastic mobile phone back cover 1 .
如图2所示，本发明所述的恶劣环境下的多频段寄生天线还包括设置于塑料手机后盖1上的单极天线2和寄生天线3。 As shown in FIG. 2 , the multi-band parasitic antenna in the harsh environment of the present invention also includes a monopole antenna 2 and a parasitic antenna 3 arranged on the back cover 1 of a plastic mobile phone.
单极天线2包括主馈电点接入部分2b、第一单极部分2b和第二单极部分2c。主馈电点接入部分2b的一端连有一主馈电点2a，另一端与第一单极部分2b、第二单极部分2c相连，其中，第一单极部分2b、第二单极部分2c的走向在一条直线上且与主馈电点接入部分2b的走向垂直，单极天线2呈“T”字型。 The monopole antenna 2 includes a main feed point access portion 2b, a first monopole portion 2b and a second monopole portion 2c. One end of the main feed point access part 2b is connected to a main feed point 2a, and the other end is connected to the first unipolar part 2b and the second unipolar part 2c, wherein the first unipolar part 2b and the second unipolar part The direction of 2c is on a straight line and perpendicular to the direction of the main feeding point access part 2b, and the monopole antenna 2 is in the shape of a "T".
寄生天线3包括地馈电点接入部分3b、第一折叠部分3c、寄生主体部分3d、第二折叠部分3f和结束部分3e；地馈电点接入部分3b的一端连有一地馈电点3a相连，另一端通过第一折叠部分3c与寄生主体部分3d的一端相连,寄生主体部分3d的另一端通过第二折叠部分3f与结束部分3e的一端相连；地馈电点接入部分3b的走向与第一单极部分2b的走在一条直线上，寄生主体部分3d的走向、结束部分3e的走向和第一单极部分2b的走向三者平行，其中，第一折叠部分3c、寄生主体部分3d、第二折叠部分3f和结束部分3e都位于第一单极部分2b、第二单极部分2c所在直线未有主馈电点接入部分2b的一边。另外，为了保证通信质量，可以将寄生主体部分3d与地馈电点接入部分3b的距离定为2.85mm，结束部分3e与地馈电点接入部分3b的距离为定为1.30mm。 The parasitic antenna 3 includes a ground feed point access part 3b, a first folded part 3c, a parasitic body part 3d, a second folded part 3f and an end part 3e; one end of the ground feed point access part 3b is connected to a ground feed point 3a, the other end is connected to one end of the parasitic body part 3d through the first folded part 3c, and the other end of the parasitic body part 3d is connected to one end of the end part 3e through the second folded part 3f; the ground feed point access part 3b The direction of the first monopole part 2b is on a straight line, the direction of the parasitic body part 3d, the direction of the end part 3e and the direction of the first monopole part 2b are parallel, wherein the first folded part 3c, the parasitic body The part 3d, the second folded part 3f and the end part 3e are all located on the side of the line where the first monopole part 2b and the second monopole part 2c are located without the main feed point access part 2b. In addition, in order to ensure the communication quality, the distance between the parasitic main part 3d and the ground feed point access part 3b can be set as 2.85mm, and the distance between the end part 3e and the ground feed point access part 3b can be set as 1.30mm.
较优地，塑料手机后盖1具有相等面积的左边部分和右边部分；主馈电点2a位于塑料手机后盖1的右边部分，且靠近塑料手机后盖1的左右部分的分界位置；所述地馈电点3a位于塑料手机后盖1的左边部分，且远离塑料手机后盖1的左右部分的分界位置。另外，主馈电点2a与塑料手机后盖1中距离最短的一边的距离不小于所述恶劣环境下的多频段寄生天线被调试频段中最低频率的四分之一波长。 Preferably, the plastic mobile phone back cover 1 has a left part and a right part of equal area; the main feeding point 2a is located at the right part of the plastic mobile phone back cover 1, and is close to the boundary position of the left and right parts of the plastic mobile phone back cover 1; The ground feed point 3a is located at the left part of the plastic mobile phone back cover 1 and away from the boundary between the left and right parts of the plastic mobile phone back cover 1 . In addition, the distance between the main feed point 2a and the shortest side of the plastic mobile phone back cover 1 is not less than a quarter wavelength of the lowest frequency in the debugged frequency band of the multi-band parasitic antenna in harsh environments.
本发明中，寄生天线3与单极天线2耦合产生的第一谐振频率R1的波长为850MHz的四分之一波长。 In the present invention, the wavelength of the first resonant frequency R1 generated by the coupling of the parasitic antenna 3 and the monopole antenna 2 is a quarter wavelength of 850 MHz.
同时，寄生天线3从地馈电点3a到第二折叠部分3f的长度、结束部分3e与第二单极部分2c的距离、主馈电点接入部分2b的长度，这三者之和为上述寄生天线3与单极天线2耦合产生的第二谐振频率R2的四分之一波长，其中第二谐振频率R2为900KHz。 At the same time, the sum of the length of the parasitic antenna 3 from the ground feed point 3a to the second folded portion 3f, the distance between the end portion 3e and the second monopole portion 2c, and the length of the main feed point access portion 2b is The coupling between the parasitic antenna 3 and the monopole antenna 2 is a quarter wavelength of the second resonant frequency R2, wherein the second resonant frequency R2 is 900 KHz.
由第一谐振频率R1和第二谐振频率R2的数值可以看出，第一谐振频率R1和第二谐振频率R2在频谱上已经覆盖了低频频段824MHz到960MHz，所以可以支持具有本发明的手机在低波段上通信。 As can be seen from the values of the first resonance frequency R1 and the second resonance frequency R2, the first resonance frequency R1 and the second resonance frequency R2 have covered the low frequency band 824MHz to 960MHz in the frequency spectrum, so they can support the mobile phone with the present invention in Communication on low band.
本发明中，第一单极部分2b未与主馈电点接入部分2b相连的一端，此端到主馈电点2a的距离为上述寄生天线3与单极天线2耦合产生的第三谐振频率R3的四分之一波长；第二单极部分2c未与主馈电点接入部分2b相连的一端，此端到主馈电点2a的距离为所述寄生天线3与单极天线2耦合产生的第三谐振频率R3的四分之一波长，其中第三谐振频率R3为1880MHz。 In the present invention, the end of the first monopole part 2b that is not connected to the main feed point access part 2b, the distance from this end to the main feed point 2a is the third resonance generated by the coupling between the parasitic antenna 3 and the monopole antenna 2 A quarter wavelength of the frequency R3; the end of the second monopole part 2c that is not connected to the main feed point access part 2b, the distance from this end to the main feed point 2a is the distance between the parasitic antenna 3 and the monopole antenna 2 The coupling generates a quarter wavelength of the third resonant frequency R3, wherein the third resonant frequency R3 is 1880MHz.
第二单极部分2c与结束部分3e耦合可以产生第四谐振频率R4，第四谐振频率R4为1900MHz。 The coupling of the second monopole part 2c and the end part 3e can generate a fourth resonant frequency R4, and the fourth resonant frequency R4 is 1900MHz.
寄生天线3与单极天线2耦合产生的第五谐振频率R5的波长为2450MHz的四分之一波长，具体地，第五谐振频率R5由第一折叠部分3c、寄生主体部分3d、第二折叠部分3f和第一单极部分2b耦合产生。 The wavelength of the fifth resonant frequency R5 generated by the coupling of the parasitic antenna 3 and the monopole antenna 2 is a quarter wavelength of 2450MHz. Part 3f is coupled with the first monopole part 2b.
寄生天线3与单极天线2耦合产生的第三谐振频率R3、第四谐振频率R4 以及第五谐振频率R5 在频谱上覆盖的频段从1710MHz到2.69GHz，可以使具有本发明的手机在高波段的移动制式（GSM1800/1900/TD-SCDMA/WCDMA2100/LTE）上工作，即本发明所述的恶劣环境下的多频段寄生天线能够支持手机在高频段上工作，可以保证其通信质量。 The third resonant frequency R3, the fourth resonant frequency R4 and the fifth resonant frequency R5 generated by the coupling of the parasitic antenna 3 and the monopole antenna 2 cover frequency bands from 1710MHz to 2.69GHz on the spectrum, which can make the mobile phone with the present invention operate in the high band It works on the mobile standard (GSM1800/1900/TD-SCDMA/WCDMA2100/LTE), that is, the multi-band parasitic antenna in the harsh environment of the present invention can support the mobile phone to work in the high-frequency band, and can guarantee its communication quality.
实测中，本发明所述的恶劣环境下的多频段寄生天线的S参数图如图4所示。由图可知，带宽覆盖700MHz到960Mhz频段和1710MHz到2690MHz，满足了现有的运用频段。 In the actual measurement, the S-parameter diagram of the multi-band parasitic antenna in the harsh environment of the present invention is shown in FIG. 4 . It can be seen from the figure that the bandwidth covers the frequency bands from 700MHz to 960Mhz and 1710MHz to 2690MHz, which satisfies the existing operating frequency bands.
另外，为了使具有本发明的手机可以更小的小巧，塑料手机后盖1还可以在不影响本发明所述的天线性能的情况下设置更多的器件。 In addition, in order to make the mobile phone with the present invention smaller, the plastic mobile phone rear cover 1 can also be provided with more devices without affecting the performance of the antenna described in the present invention.
如图3所示，以主馈电点接入部分2b为界将塑料手机后盖1分为包含第一单极部分2b的左部分和包含第二单极部分2c的右部分；塑料手机后盖1的左部分设置有一块小板5，小板5上设置有USB插孔7、麦克风8、耳机插孔9和所述的地馈电点3a，其中，小板5覆盖着寄生天线3的一部分；塑料手机后盖1的右部分设置有主板4、扬声器支架6和设置在扬声器支架6上的扬声器7，其中，主板4上设置有所述的主馈电点2a，扬声器支架6覆盖着单极天线。含有金属的器件诸如USB插孔7、麦克风8和耳机插孔9被设置在寄生天线3的周围同时远离了单极天线2，而单极天线2上则覆盖着非金属的扬声器支架6。 As shown in Figure 3, the plastic mobile phone rear cover 1 is divided into a left part containing the first monopolar part 2b and a right part containing the second monopolar part 2c with the main feed point access part 2b as the boundary; the plastic mobile phone rear The left part of the cover 1 is provided with a small plate 5, and the small plate 5 is provided with a USB jack 7, a microphone 8, an earphone jack 9 and the ground feeding point 3a, wherein the small plate 5 covers the parasitic antenna 3 A part; the right part of the plastic mobile phone back cover 1 is provided with a main board 4, a loudspeaker bracket 6 and a loudspeaker 7 arranged on the loudspeaker bracket 6, wherein the main feeding point 2a is arranged on the main board 4, and the loudspeaker bracket 6 covers with a monopole antenna. Metallic components such as USB jack 7, microphone 8, and headphone jack 9 are placed around parasitic antenna 3 and away from monopole antenna 2, which is covered with non-metallic speaker bracket 6.
在本发明中，天线走线的区域仅在单极天线2的工作区域有净空，由于单极天线2面积小易实现，故在单极天线2的空间，扬声器7亦设置在内，符合了最大化利用空间的特点。寄生天线3周围则都有器件诸如USB插孔7、麦克风8、耳机插孔9在其附近，由于寄生天线3由地馈电点3a引出，故只要寄生天线3良好接地，其他周围的器件诸如USB插孔7、麦克风8、耳机插孔9对本发明所述的天线的性能就无明显影响。从实验结果来看，这些含金属的器件（USB插孔7、麦克风8、耳机插孔9）未能降低具有本发明的手机的通信性能。从而，本发明尽可能的利用了通信手机的空间，减小了机身的体积，实现了移动手机的小巧。同时具有本发明所述的天线性能能够满足要求，解决了在环境恶劣下天线的性能受影响的问题。 In the present invention, the area of the antenna routing only has a clearance in the working area of the monopole antenna 2, because the area of the monopole antenna 2 is small and easy to realize, so in the space of the monopole antenna 2, the loudspeaker 7 is also arranged inside, which meets the Features that maximize the use of space. There are devices such as USB jack 7, microphone 8, and earphone jack 9 around the parasitic antenna 3. Since the parasitic antenna 3 is drawn out from the ground feed point 3a, as long as the parasitic antenna 3 is well grounded, other surrounding devices such as The USB jack 7, the microphone 8, and the earphone jack 9 have no obvious influence on the performance of the antenna described in the present invention. From the experimental results, these metal-containing devices (USB jack 7, microphone 8, earphone jack 9) fail to reduce the communication performance of the mobile phone with the present invention. Therefore, the present invention utilizes the space of the communication mobile phone as much as possible, reduces the volume of the fuselage, and realizes the compactness of the mobile phone. At the same time, the performance of the antenna described in the present invention can meet the requirements, and the problem that the performance of the antenna is affected in harsh environments is solved.
以上公开的本发明的优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。 The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.
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