CN108539420B - Octal Band Tablet Antenna with Metal Narrow Bezel - Google Patents

Octal Band Tablet Antenna with Metal Narrow Bezel Download PDF

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CN108539420B
CN108539420B CN201810465580.XA CN201810465580A CN108539420B CN 108539420 B CN108539420 B CN 108539420B CN 201810465580 A CN201810465580 A CN 201810465580A CN 108539420 B CN108539420 B CN 108539420B
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antenna
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frame
dielectric material
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CN108539420A (en
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张立
陈楚晖
翁子彬
焦永昌
沈东麟
陈官韬
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Xidian University
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28Arrangements for establishing polarisation or beam width over two or more different wavebands
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna

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Abstract

本发明公开了一种具有金属窄边框的八频段平板电脑天线,用于解决现有技术中平板电脑天线在金属窄边框环绕下无法覆盖八频段的问题。本发明包括:介质材料板1、带缺口的金属地板2、辐射单元3及金属边框4;其中带缺口的金属地板2和辐射单元3印制在介质材料板1的正面,金属地板2上的缺口位于其顶部边缘中间位置,辐射单元3的位置与缺口位置对应,介质材料板1外围环绕有设置断点缝隙7的金属边框4,且金属边框4与介质材料板1之间具有间隙6,金属边框4通过两个短路连接件8与金属地板2相连。本发明的天线净空区域小,且能完全覆盖八个工作频段,有效拓宽了天线带宽,天线实测效率满足金属窄边框平板电脑的应用需求。

Figure 201810465580

The invention discloses an eight-band tablet computer antenna with a metal narrow frame, which is used to solve the problem that the tablet computer antenna in the prior art cannot cover eight frequency bands when surrounded by a metal narrow frame. The present invention includes: a dielectric material board 1, a metal floor 2 with a gap, a radiation unit 3 and a metal frame 4; wherein the metal floor 2 with a gap and the radiation unit 3 are printed on the front of the dielectric material board 1, and the The gap is located in the middle of its top edge, the position of the radiation unit 3 corresponds to the position of the gap, the dielectric material board 1 is surrounded by a metal frame 4 with a breakpoint gap 7, and there is a gap 6 between the metal frame 4 and the dielectric material board 1, The metal frame 4 is connected to the metal floor 2 through two short-circuit connectors 8 . The antenna of the invention has a small clearance area, and can completely cover eight working frequency bands, thereby effectively broadening the bandwidth of the antenna, and the measured efficiency of the antenna meets the application requirements of a metal narrow-frame tablet computer.

Figure 201810465580

Description

具有金属窄边框的八频段平板电脑天线Octal Band Tablet Antenna with Metal Narrow Bezel

技术领域technical field

本发明属于通信技术领域,进一步涉及终端天线,具体为一种具有金属窄边框的八频段平板电脑天线,可用于带金属边框的平板电脑接收/发射2G/3G/4G信号。The invention belongs to the technical field of communication, and further relates to a terminal antenna, in particular to an eight-band tablet computer antenna with a metal narrow frame, which can be used for receiving/transmitting 2G/3G/4G signals on a tablet computer with a metal frame.

背景技术Background technique

近年来,无线通信技术飞速发展,移动通信终端逐渐演变为人与互联网之间的桥梁。其中,平板电脑已经成为人们日常生活的必需品。由于金属边框不仅可以增加设备的机械稳定性,而且能够提高用户的使用舒适度,具有金属边框的平板电脑正在成为当今市场的主流趋势。然而,由于金属边框的存在,传统的移动终端天线与金属边框势必会存在着很强的耦合,从而直接影响天线的辐射性能,使其无法完全覆盖LTE700/2300/2500/GSM850/900/DCS/PCS/UMTS2100八个工作频段。In recent years, with the rapid development of wireless communication technology, mobile communication terminals have gradually evolved into a bridge between people and the Internet. Among them, the tablet computer has become a necessity of people's daily life. Since the metal frame can not only increase the mechanical stability of the device, but also improve the user's comfort, tablet PCs with metal frames are becoming the mainstream trend in today's market. However, due to the existence of the metal frame, there is bound to be a strong coupling between the traditional mobile terminal antenna and the metal frame, which directly affects the radiation performance of the antenna, making it impossible to completely cover LTE700/2300/2500/GSM850/900/DCS/ Eight working frequency bands of PCS/UMTS2100.

另外,为了进一步增添设备的高品质感官,人们往往会追求设备的超薄化以及更大的屏占比,这无疑会进一步压缩天线所占用的空间。因此,如何设计出具有金属边框环绕的低剖面、多频段、窄边框的平板电脑天线是一个巨大的挑战。In addition, in order to further increase the high-quality sense of the device, people tend to pursue ultra-thin devices and a larger screen ratio, which will undoubtedly further compress the space occupied by the antenna. Therefore, how to design a low-profile, multi-band, narrow-bezel tablet antenna with metal bezel surrounds is a huge challenge.

目前为了解决金属边框对终端天线性能带来的恶化问题,较为流行的设计方案有Loop、Slot、Monopole等形式。例如,在专利公告号为CN 107394351 A,名称为“一种全金属外壳移动智能终端天线”的专利申请文件中提供了一种终端天线,其通过在金属边框上设置窄缝,将金属框分隔成两个独立的部分,利用其中一段金属框作为环形天线的一部分,最终实现了覆盖GSM850/900/DCS/PCS/UMTS2100/LTE2300/2500七个工作频带,然而,该设计对于净空要求较大,并无法实现窄边框的要求,而且低频没有覆盖应用前景广泛的LTE700频段。在专利公告号为CN 107104284 A,名称为“全金属环窄边框4G智能机天线”的专利申请文件中提供了一种全金属环窄边框4G智能机天线,其中对天线的设计保持了完整的金属边框,但其依旧未能覆盖LTE700频段,而且加载了两个集总元件,众所周知,集总元件会给天线效率造成不必要的损失。综上所述,现有的多种技术方案均存在一定缺陷,并不能解决在金属窄边框环绕下覆盖八频段的问题。At present, in order to solve the problem of deterioration of the terminal antenna performance caused by the metal frame, the more popular design schemes include Loop, Slot, Monopole and so on. For example, in the patent application document with the patent publication number CN 107394351 A and titled "An All-Metal Shell Mobile Smart Terminal Antenna", a terminal antenna is provided, which separates the metal frame by arranging slits on the metal frame. It is divided into two independent parts, and one of the metal frames is used as part of the loop antenna, and finally the seven working frequency bands of GSM850/900/DCS/PCS/UMTS2100/LTE2300/2500 are covered. However, this design requires a large amount of clearance. The requirement of narrow frame cannot be achieved, and the low frequency does not cover the LTE700 frequency band with wide application prospects. In the patent application document with the patent publication number CN 107104284 A and the title of "full metal ring narrow frame 4G smart phone antenna", a full metal ring narrow frame 4G smart phone antenna is provided, wherein the design of the antenna is kept intact Metal frame, but it still fails to cover the LTE700 frequency band, and is loaded with two lumped elements. It is well known that lumped elements will cause unnecessary loss of antenna efficiency. To sum up, the existing technical solutions all have certain defects, and cannot solve the problem of covering eight frequency bands under the circumstance of a metal narrow frame.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于针对以上现有技术的不足,提出一种具有金属窄边框的八频段平板电脑天线,以解决在金属窄边框环绕下覆盖八个工作频段的技术问题。本发明通过设置断点缝隙以及金属接地片,将天线净空区和金属边框集成为一条“T”型缝隙,利用天线辐射单元激励该“T”型缝隙产生缝隙谐振参与辐射,有效的拓宽了天线带宽,分担了天线单元所需要的谐振尺寸压力,使得天线尺寸极大的减小;同时,天线辐射单元本身也可以产生谐振特性,最终在没有加载任何集总元件的前提下实现了八频段带宽覆盖。The purpose of the present invention is to provide an eight-band tablet computer antenna with a metal narrow frame to solve the technical problem of covering eight working frequency bands surrounded by a metal narrow frame, aiming at the above shortcomings of the prior art. The invention integrates the antenna clearance area and the metal frame into a "T"-shaped slot by setting the breakpoint slot and the metal grounding sheet, and uses the antenna radiating element to excite the "T"-shaped slot to generate slot resonance and participate in radiation, thereby effectively widening the antenna. The bandwidth of the antenna unit shares the pressure of the resonance size required by the antenna unit, which greatly reduces the size of the antenna; at the same time, the antenna radiating unit itself can also generate resonance characteristics, and finally achieve an eight-band bandwidth without loading any lumped elements. cover.

为实现上述目的,本发明采取的技术方案为:To achieve the above object, the technical scheme adopted in the present invention is:

一种具有金属窄边框的八频段平板电脑天线,包括介质材料板1、金属地板2、辐射单元3以及金属边框4;其中金属地板2的顶部边缘中间位置设有缺口201,辐射单元3位于缺口201处,金属地板2和辐射单元3印制在介质材料板1的正面,金属边框4环绕在介质材料板1外围,且两者之间设有间隙6,其特征在于:An eight-band tablet computer antenna with a metal narrow frame, comprising a dielectric material board 1, a metal floor 2, a radiation unit 3 and a metal frame 4; wherein a gap 201 is provided in the middle of the top edge of the metal floor 2, and the radiation unit 3 is located in the gap At 201, the metal floor 2 and the radiation unit 3 are printed on the front of the dielectric material board 1, the metal frame 4 surrounds the periphery of the dielectric material board 1, and there is a gap 6 between them, which is characterized by:

所述金属边框4的顶部设置有一个断点缝隙7,且该金属边框4通过短路连接件8与金属地板2相连。A breakpoint gap 7 is provided on the top of the metal frame 4 , and the metal frame 4 is connected to the metal floor 2 through a short-circuit connector 8 .

上述天线,其中所述断点缝隙7设置在金属边框4的顶部边框上,且该断点缝隙7的左边缘与其所在顶部边框的左边界相距115~125mm;所述断点缝隙7的宽度为2~3mm。The above antenna, wherein the breakpoint slot 7 is arranged on the top frame of the metal frame 4, and the left edge of the breakpoint slot 7 is 115-125mm away from the left border of the top frame where it is located; the width of the breakpoint slot 7 is 2~3mm.

上述天线,其中所述金属边框4通过两个短路连接件8与金属地板2直接相连,其中一个短路连接件设置于金属地板2上紧靠缺口201左边沿的位置,另一个设置于金属地板2上紧靠缺口201右边沿的位置;所述短路连接件8为金属接地片。The above antenna, wherein the metal frame 4 is directly connected to the metal floor 2 through two short-circuit connectors 8, one of which is arranged on the metal floor 2 close to the left edge of the notch 201, and the other is arranged on the metal floor 2. A position close to the right edge of the notch 201; the short-circuit connector 8 is a metal grounding plate.

上述天线,其中所述介质材料板1与金属边框4之间的间隙6宽度为1~3mm。In the above antenna, the width of the gap 6 between the dielectric material plate 1 and the metal frame 4 is 1-3 mm.

上述天线,其中所述缺口201形状为矩形,其长度为74mm、宽度为5mm。In the above antenna, the notch 201 is rectangular in shape, and its length is 74 mm and its width is 5 mm.

上述天线,其中所述辐射单元3由“L”型辐射贴片301、矩形辐射贴片302、“L”型耦合接地贴片303、馈电点5以及接地点9组成,其中“L”型辐射贴片301的短臂与矩形辐射贴片302直接相连,“L”型耦合接地贴片303的长臂与“L”型辐射贴片301的长臂部分耦合;The above antenna, wherein the radiation unit 3 is composed of an "L" type radiation patch 301, a rectangular radiation patch 302, an "L" type coupling ground patch 303, a feeding point 5 and a ground point 9, wherein the "L" type The short arm of the radiation patch 301 is directly connected to the rectangular radiation patch 302, and the long arm of the "L" type coupling ground patch 303 is partially coupled with the long arm of the "L" type radiation patch 301;

上述天线,其中所述“L”型辐射贴片301的短臂下边缘与馈电点5相连;The above-mentioned antenna, wherein the lower edge of the short arm of the "L"-shaped radiation patch 301 is connected to the feeding point 5;

上述天线,其中所述“L”型耦合接地贴片303的短臂下边缘通过接地点9与金属地板2相连。In the above antenna, the lower edge of the short arm of the "L"-shaped coupling ground patch 303 is connected to the metal floor 2 through the ground point 9 .

本发明与现有技术相比,具有如下优点:Compared with the prior art, the present invention has the following advantages:

第一:由于本发明通过设置断点缝隙以及金属接地片,将天线净空区和金属边框集成为一条“T”型缝隙,利用天线辐射单元激励该“T”型缝隙产生缝隙谐振参与辐射,有效拓宽了天线带宽,分担了天线单元所需要的谐振尺寸压力,从而极大的减小了天线尺寸;First: because the invention integrates the antenna clearance area and the metal frame into a "T"-shaped slot by setting the breakpoint slot and the metal grounding sheet, and the "T"-shaped slot is excited by the antenna radiating element to generate slot resonance and participate in the radiation, which is effective. The bandwidth of the antenna is widened, and the pressure of the resonance size required by the antenna unit is shared, thereby greatly reducing the size of the antenna;

第二:本发明中天线净空区宽度非常小,符合当今平板电脑的设计要求,且能完全覆盖八个工作频段,满足低剖面、多频段、窄边框的平板电脑天线应用需求;Second: the width of the antenna clearance area in the present invention is very small, which meets the design requirements of today's tablet computers, and can completely cover eight operating frequency bands, meeting the application requirements of tablet computer antennas with low profile, multi-band and narrow frame;

第三:由于本发明中不增设任何集总元件,避免了加载集总元件产生的不必要的能量损耗以及批量生产时集总元件带来的误差,在不加载集总元件的前提下实现八频段带宽覆盖,较高的实测效率使其在实际应用中具有显著优势。Third: since no lumped elements are added in the present invention, unnecessary energy loss caused by loading lumped elements and errors caused by lumped elements during mass production are avoided, and eight lumped elements are not loaded. The frequency band bandwidth coverage and the high measured efficiency make it have significant advantages in practical applications.

附图说明Description of drawings

图1是本发明的立体结构示意图;Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

图2是本发明的俯视结构示意图;Fig. 2 is the top view structure schematic diagram of the present invention;

图3是本发明的S11仿真与实测结果对比图;Fig. 3 is the S 11 simulation of the present invention and the actual measurement result comparison diagram;

图4是本发明的实测效率图。FIG. 4 is a graph of the measured efficiency of the present invention.

具体实施方式Detailed ways

为了使本发明的目的、技术方案及优点更加清楚明白,下面结合附图及具体实施例对本发明做进一步描述。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

参照图1,本发明的具体结构如下:1, the concrete structure of the present invention is as follows:

具有金属窄边框的八频段平板电脑天线,包括介质材料板1、金属地板2、辐射单元3以及金属边框4;其中金属地板2的顶部边缘中间位置设有缺口201,辐射单元3位于缺口201处,金属地板2和辐射单元3印制在介质材料板1的正面,金属边框4环绕在介质材料板1外围,且两者之间设有间隙6。An eight-band tablet computer antenna with a metal narrow frame, including a dielectric material plate 1, a metal floor 2, a radiation unit 3 and a metal frame 4; a gap 201 is provided in the middle of the top edge of the metal floor 2, and the radiation unit 3 is located at the gap 201. , the metal floor 2 and the radiation unit 3 are printed on the front surface of the dielectric material board 1 , the metal frame 4 surrounds the periphery of the dielectric material board 1 , and a gap 6 is set between them.

所述介质材料板1为相对介电常数4.4的长方形介质板,其长度为150mm,宽度为200mm,厚度为0.8mm。The dielectric material plate 1 is a rectangular dielectric plate with a relative permittivity of 4.4, its length is 150 mm, the width is 200 mm, and the thickness is 0.8 mm.

所述金属地板2为带缺口的金属贴片,印制在长方形介质材料板1的正面,金属贴片长为150mm,宽为200mm;缺口形状为长方形,位于金属地板2顶部边缘的中间位置,该缺口长度为74mm,宽度为5mm,其左边缘与金属底板2左边缘相距63mm。The metal floor 2 is a metal patch with a gap, which is printed on the front of the rectangular dielectric material board 1. The length of the metal patch is 150mm and the width is 200mm; The gap is 74mm long and 5mm wide, and the left edge of the gap is 63mm apart from the left edge of the metal base plate 2 .

所述金属边框4环绕长方形介质材料板1一周,由厚度为0.5mm,高度为5mm的铜皮制成;金属边框4与长方形介质材料板1之间具有间隙6,间隙宽度为2mm;金属边框4顶部边缘位置设置有一个断点缝隙7,缝隙宽度为2.5mm,缝隙左边缘与金属边框4的顶部边框左边缘相距120.5mm;金属边框4通过两个短路连接件8与金属地板2直接相连,两个短路连接件8与金属边框4、金属地板2连接方式为焊接,该短路连接件为一种金属接地片,设置短路连接片的作用在于将金属边框4与金属地板2集成为一体,结合间隙6形成一条“T”型开路缝隙,“T”型开路缝隙的长臂与短臂分别受到激励产生1/4波长的基本谐振特性,用于覆盖LTE700以及UMTS2100频段,有效的拓宽了天线带宽,分担了天线单元所需要的谐振尺寸压力,实现天线的小型化。The metal frame 4 surrounds the rectangular dielectric material board 1, and is made of copper sheet with a thickness of 0.5 mm and a height of 5 mm; there is a gap 6 between the metal frame 4 and the rectangular dielectric material board 1, and the width of the gap is 2 mm; the metal frame 4. A breakpoint gap 7 is set at the top edge position, the width of the gap is 2.5mm, and the left edge of the gap is 120.5mm away from the left edge of the top frame of the metal frame 4; the metal frame 4 is directly connected to the metal floor 2 through two short-circuit connectors 8 , the two short-circuit connectors 8 are connected to the metal frame 4 and the metal floor 2 by welding. The short-circuit connector is a metal grounding piece. The function of setting the short-circuit connecting piece is to integrate the metal frame 4 and the metal floor 2 into one. Combined with the gap 6, a "T" type open-circuit slot is formed. The long arm and the short arm of the "T" type open-circuit slot are excited to generate the basic resonance characteristics of 1/4 wavelength, which are used to cover the LTE700 and UMTS2100 frequency bands, effectively widening the antenna. The bandwidth can share the resonance size pressure required by the antenna unit, and realize the miniaturization of the antenna.

参照图2,所述具有金属窄边框的八频段平板电脑天线的辐射单元3印制在长方形介质材料板1的正面,位置与金属地板缺口的位置相互对应,包括“L”型辐射贴片301、矩形辐射贴片302、“L”型耦合接地贴片303、馈电点5以及接地点9。Referring to FIG. 2 , the radiation unit 3 of the eight-band tablet computer antenna with narrow metal frame is printed on the front side of the rectangular dielectric material board 1 , and the position corresponds to the position of the metal floor gap, including the “L”-shaped radiation patch 301 , a rectangular radiation patch 302 , an "L"-shaped coupling ground patch 303 , a feed point 5 and a ground point 9 .

所述“L”型辐射贴片301,其纵向臂长为4mm,宽为1mm,横向臂长为49mm,宽为0.6mm,其纵向臂上边缘与介质板1上边缘重合;“L”型辐射贴片301的短臂与矩形辐射贴片302直接相连。The "L"-shaped radiation patch 301 has a longitudinal arm length of 4 mm, a width of 1 mm, a lateral arm length of 49 mm and a width of 0.6 mm, and the upper edge of the longitudinal arm coincides with the upper edge of the dielectric plate 1; The short arm of the radiation patch 301 is directly connected to the rectangular radiation patch 302 .

所述矩形辐射贴片302,其长为18mm,宽为0.8mm,其上边缘与介质板1上边缘之间的纵向距离为2.2mm。The rectangular radiation patch 302 has a length of 18 mm and a width of 0.8 mm, and the longitudinal distance between the upper edge of the rectangular radiation patch 302 and the upper edge of the dielectric plate 1 is 2.2 mm.

所述“L”型耦合接地贴片303,其横向臂长为34mm,宽为0.9mm,纵向臂长为2.8mm,宽为0.5mm,其横向臂上边缘与“L”型辐射贴片301横向臂下边缘之间的纵向距离为0.7mm;“L”型耦合接地贴片303的长臂与“L”型辐射贴片301的长臂部分耦合。The "L" type coupling ground patch 303 has a lateral arm length of 34mm and a width of 0.9mm, a longitudinal arm length of 2.8mm and a width of 0.5mm, and the upper edge of the lateral arm is connected to the "L" type radiation patch 301 The longitudinal distance between the lower edges of the lateral arms is 0.7 mm;

所述馈电点5位于“L”型辐射贴片301短臂的下边缘,直接对辐射贴片301以及302进行馈电。其中,“L”型辐射贴片301受到馈电产生1/4波长的基本谐振,覆盖DCS/PCS频段,矩形辐射贴片302受到馈电产生1/4波长的基本谐振,覆盖LTE2300/2500频段。The feeding point 5 is located at the lower edge of the short arm of the "L"-shaped radiation patch 301 , and directly feeds the radiation patches 301 and 302 . Among them, the "L"-shaped radiation patch 301 is fed to generate a basic resonance of 1/4 wavelength, covering the DCS/PCS frequency band, and the rectangular radiation patch 302 is fed to generate a basic resonance of 1/4 wavelength, covering the LTE2300/2500 frequency band .

所述接地点9位于“L”型耦合接地贴片303短臂的下边缘,其作用在于将耦合贴片与金属地板2相连,形成一个耦合接地结构产生谐振,用于覆盖GSM850/900频段。The grounding point 9 is located at the lower edge of the short arm of the "L"-shaped coupling grounding patch 303, and its function is to connect the coupling patch to the metal floor 2 to form a coupled grounding structure to generate resonance for covering the GSM850/900 frequency band.

结合以下的仿真与实测对本发明的应用效果作进一步的说明:The application effect of the present invention is further described in conjunction with the following simulation and actual measurement:

一、仿真与实测条件:1. Simulation and actual measurement conditions:

(1)利用商业仿真软件HFSS_15.0和矢量网络分析仪MS46322A对上述实施例中的S11进行仿真以及实测,其仿真与实测的对比结果如图3所示。(1) Use the commercial simulation software HFSS_15.0 and the vector network analyzer MS46322A to simulate and measure S11 in the above embodiment, and the comparison result between the simulation and the actual measurement is shown in FIG. 3 .

(2)利用微波暗室对上述实施例中的效率进行实测,其工作频带(698MHz~960MHz和1710MHz~2690MHz)内的实测效率结果如图4所示。(2) The efficiency in the above embodiment is measured by using a microwave anechoic chamber, and the measured efficiency results in the operating frequency bands (698MHz-960MHz and 1710MHz-2690MHz) are shown in Fig. 4 .

二、仿真与实测结果:2. Simulation and test results:

参照图3,以S11≤-6dB为标准,实施例中天线仿真结果的阻抗带宽为689MHz~970MHz和1570MHz~2960MHz,实施例中天线实测结果的阻抗带宽为675MHz~1070MHz和1458MHz~2932MHz。3 , taking S 11 ≤-6dB as a standard, the impedance bandwidths of the antenna simulation results in the embodiment are 689MHz-970MHz and 1570MHz-2960MHz, and the impedance bandwidths of the antenna measurement results in the embodiment are 675MHz-1070MHz and 1458MHz-2932MHz.

参照图4,实施例中天线实测效率在低频段698MHz~960MHz内为51%~84%,在高频段1710MHz~2690MHz内为52%~87%。Referring to FIG. 4 , in the embodiment, the measured efficiency of the antenna is 51%-84% in the low frequency band of 698MHz-960MHz, and is 52%-87% in the high frequency band of 1710MHz-2690MHz.

综合以上仿真及测试结果,本发明能够有效拓宽天线带宽,可在不加载任何集总元件的前提下实现金属窄边框环绕下八频段带宽的覆盖。Based on the above simulation and test results, the present invention can effectively widen the bandwidth of the antenna, and can realize the coverage of the bandwidth of the lower eight frequency bands surrounded by a metal narrow frame without loading any lumped elements.

本发明未详细说明部分属于本领域技术人员公知常识。The parts of the present invention that are not described in detail belong to the common knowledge of those skilled in the art.

以上描述和实施例,仅为本发明的优选实例,不构成对本发明的任何限制,显然对于本领域的专业人员来说,在了解了本发明内容和设计原理后,都可能在基于本发明的原理和结构的情况下,进行形式上和细节上的各种修正和改变,但是这些基于本发明思想的修正和改变仍在本发明的权利要求的保护范围之内。The above description and embodiments are only preferred examples of the present invention, and do not constitute any limitation to the present invention. Obviously, for those skilled in the art, after understanding the content and design principles of the present invention, it is possible to use the invention based on the present invention. Under the condition of the principle and structure, various corrections and changes in form and details are made, but these corrections and changes based on the idea of the present invention still fall within the protection scope of the claims of the present invention.

Claims (9)

1. An eight-frequency-band tablet personal computer antenna with a metal narrow frame comprises a dielectric material plate (1), a metal floor (2), a radiation unit (3) and a metal frame (4); wherein the top edge intermediate position on metal floor (2) is equipped with breach (201), and radiant element (3) are located breach (201) department, and metal floor (2) and radiant element (3) are printed in the front of dielectric material board (1), and metal frame (4) encircle in dielectric material board (1) periphery, and are equipped with clearance (6), its characterized in that between the two: the top of the metal frame (4) is provided with a breakpoint gap (7), and the metal frame (4) is connected with the metal floor (2) through a short-circuit connecting piece (8);
the number of the short circuit connecting pieces (8) is two, one of the short circuit connecting pieces is arranged at a position close to the left edge of the notch (201) on the metal floor (2), and the other short circuit connecting piece is arranged at a position close to the right edge of the notch (201) on the metal floor (2);
the break point gap (7) is combined with the gap (6) to form a T-shaped open-circuit gap.
2. The antenna of claim 1, wherein: the breakpoint gap (7) is arranged on the top frame of the metal frame (4), and the left edge of the breakpoint gap (7) is 115-125 mm away from the left boundary of the top frame where the breakpoint gap is located.
3. The antenna of claim 2, wherein: the width of the breakpoint gap (7) is 2-3 mm.
4. The antenna of claim 1, wherein: the short circuit connecting piece (8) is a metal grounding sheet.
5. The antenna of claim 1, wherein: the width of a gap (6) between the dielectric material plate (1) and the metal frame (4) is 1-3 mm.
6. The antenna of claim 1, wherein: the notch (201) is rectangular, and the length and the width of the notch are 74mm and 5mm respectively.
7. The antenna of claim 1, wherein: the radiating unit (3) is composed of an L-shaped radiating patch (301), a rectangular radiating patch (302), an L-shaped coupling grounding patch (303), a feeding point (5) and a grounding point (9), wherein the short arm of the L-shaped radiating patch (301) is directly connected with the rectangular radiating patch (302), and the long arm of the L-shaped coupling grounding patch (303) is partially coupled with the long arm of the L-shaped radiating patch (301).
8. The antenna of claim 7, wherein: the lower edge of the short arm of the L-shaped radiating patch (301) is connected with a feed point (5).
9. The antenna of claim 7, wherein: the lower edge of the short arm of the L-shaped coupling grounding patch (303) is connected with the metal floor (2) through a grounding point (9).
CN201810465580.XA 2018-05-16 2018-05-16 Octal Band Tablet Antenna with Metal Narrow Bezel Active CN108539420B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970710B (en) * 2018-09-29 2022-08-12 荷兰移动驱动器公司 Antenna structure and wireless communication device having the same
CN113745831B (en) * 2020-05-27 2022-08-26 华为技术有限公司 Antenna structure and mobile terminal
CN119009461B (en) * 2024-10-24 2025-02-14 浪潮计算机科技有限公司 Resonant cavity antenna and communication terminal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000269736A (en) * 1999-03-18 2000-09-29 Dx Antenna Co Ltd Multifrequency band antenna
CN103794850A (en) * 2014-02-28 2014-05-14 温州海通通讯电子有限公司 Small low-SAR antenna
CN106602243A (en) * 2016-12-02 2017-04-26 西安电子科技大学 2MIMO mobile phone antenna based on characteristic mode theory and design method thereof
CN107039746A (en) * 2017-04-10 2017-08-11 杨明 One kind 11 frequency range antenna for mobile phone of miniaturization
CN207218688U (en) * 2016-08-11 2018-04-10 苹果公司 Electronic equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7564411B2 (en) * 2006-03-29 2009-07-21 Flextronics Ap, Llc Frequency tunable planar internal antenna
CN104319477B (en) * 2014-09-18 2018-02-27 联想(北京)有限公司 A kind of antenna and electronic equipment
CN106159440B (en) * 2015-03-31 2019-07-26 比亚迪股份有限公司 Antenna and mobile terminal with it
US20170149136A1 (en) * 2015-11-20 2017-05-25 Taoglas Limited Eight-frequency band antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000269736A (en) * 1999-03-18 2000-09-29 Dx Antenna Co Ltd Multifrequency band antenna
CN103794850A (en) * 2014-02-28 2014-05-14 温州海通通讯电子有限公司 Small low-SAR antenna
CN207218688U (en) * 2016-08-11 2018-04-10 苹果公司 Electronic equipment
CN106602243A (en) * 2016-12-02 2017-04-26 西安电子科技大学 2MIMO mobile phone antenna based on characteristic mode theory and design method thereof
CN107039746A (en) * 2017-04-10 2017-08-11 杨明 One kind 11 frequency range antenna for mobile phone of miniaturization

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Integration of a Low-Profile, Long-Term Evolution/Wireless";Shu-Chuan Chen等;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20170701;第65卷(第7期);摘要、第2页左栏第1-29行至右栏第1-9行及图1 *
"LOW-PROFILE DUAL-WIDEBAND";Kin-Lu Wong等;《MICROWAVE AND OPTICAL TECHNOLOGY LETTERS》;20150831;第57卷(第8期);全文 *

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