CN106099329A - A kind of isotropic wideband monopole sub antenna - Google Patents
A kind of isotropic wideband monopole sub antenna Download PDFInfo
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- CN106099329A CN106099329A CN201610519848.4A CN201610519848A CN106099329A CN 106099329 A CN106099329 A CN 106099329A CN 201610519848 A CN201610519848 A CN 201610519848A CN 106099329 A CN106099329 A CN 106099329A
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- 230000005404 monopole Effects 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 230000005855 radiation Effects 0.000 claims abstract description 28
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 241000826860 Trapezium Species 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 claims 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 10
- 238000011160 research Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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Abstract
本发明公开了一种全向性的宽带单极子天线，包括接地板、介质基板、馈电网络和辐射贴片，所述介质基板的厚度为1.6mm，接地板设于介质基板一侧，介质基板另一侧设有馈电网络和辐射贴片，所述辐射贴片的上部的左右两侧相对称设有倒角，辐射贴边的中部刻蚀有T形槽，辐射贴片的下部的左右两侧相对称地设有梯形结构，所述接地板与所述介质基板的宽度相等。本发明天线具有在3.2‑10.2GHz频段的工作带宽，并在每个频段都能保持天线的全向辐射特性，可满足多个频段的工作需求，实现多副天线集成化。该天线尺寸小、结构简单、易于制作，适于无线通信系统及设备，是最近电磁领域、可穿戴设备领域研究的热点，有极大的发展前景。
The invention discloses an omnidirectional broadband monopole antenna, which comprises a grounding plate, a dielectric substrate, a feed network and a radiation patch. The thickness of the dielectric substrate is 1.6 mm, and the grounding plate is arranged on one side of the dielectric substrate. The other side of the dielectric substrate is provided with a feed network and a radiation patch. The left and right sides of the upper part of the radiation patch are symmetrically provided with chamfers. The middle part of the radiation welt is etched with a T-shaped groove. The lower part of the radiation patch A trapezoidal structure is arranged symmetrically on the left and right sides of the ground plate, and the width of the ground plate is equal to that of the dielectric substrate. The antenna of the present invention has a working bandwidth in the 3.2-10.2GHz frequency band, and can maintain the omnidirectional radiation characteristic of the antenna in each frequency band, can meet the working requirements of multiple frequency bands, and realize the integration of multiple antennas. The antenna is small in size, simple in structure, easy to manufacture, and is suitable for wireless communication systems and equipment. It is a research hotspot in the field of electromagnetic fields and wearable devices recently, and has great development prospects.
Description
技术领域technical field
本发明涉及天线技术领域，具体的说，是涉及一种全向性的宽带单极子天线。The invention relates to the technical field of antennas, in particular to an omnidirectional broadband monopole antenna.
背景技术Background technique
近年来，无线通信发展十分迅速，与之相关的无线通信技术、通信系统、通信设备等也成为研究的焦点。其中全向天线可与水平面360各个方向的目标进行通信，广泛应用于广播电视、卫星通信、射频识别、移动通信、无线传感器以及空间飞行器等场合。此外，在现代无线通信系统中，宽带天线能够满足人与人之间大量信息高速传递的需求，且可以使一副天线工作于多个通信系统，从而减少载体上天线数目，实现通信设备小型化。In recent years, wireless communication has developed very rapidly, and the related wireless communication technology, communication system, communication equipment, etc. have also become the focus of research. Among them, the omnidirectional antenna can communicate with targets in all directions of 360 degrees on the horizontal plane, and is widely used in radio and television, satellite communications, radio frequency identification, mobile communications, wireless sensors, and space vehicles. In addition, in modern wireless communication systems, broadband antennas can meet the needs of high-speed transmission of a large amount of information between people, and can make one antenna work in multiple communication systems, thereby reducing the number of antennas on the carrier and realizing the miniaturization of communication equipment .
发明内容Contents of the invention
本发明的目的是为了克服现有技术中的不足，提供一种全向性的宽带单极子天线，该天线具有在3.2-10.2GHz频段的工作带宽，并在每个频段都能保持天线的全向辐射特性，可满足多个频段的工作需求，实现多副天线集成化。该天线尺寸小、结构简单、易于制作，适于无线通信系统及设备，是最近电磁领域、可穿戴设备领域研究的热点，有极大的发展前景。The purpose of the present invention is to provide a kind of omnidirectional wideband monopole antenna in order to overcome the deficiencies in the prior art, and this antenna has the working bandwidth in 3.2-10.2GHz frequency band, and can keep the antenna in each frequency band. Omnidirectional radiation characteristics can meet the working requirements of multiple frequency bands and realize the integration of multiple antennas. The antenna is small in size, simple in structure, easy to manufacture, and is suitable for wireless communication systems and equipment. It is a research hotspot in the field of electromagnetic fields and wearable devices recently, and has great development prospects.
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
一种全向性的宽带单极子天线，包括接地板、介质基板、馈电网络和辐射贴片，所述介质基板的厚度为1.6mm，接地板设于介质基板一侧，介质基板另一侧设有馈电网络和辐射贴片，所述辐射贴片的上部的左右两侧相对称设有倒角，辐射贴边的中部刻蚀有T形槽，辐射贴片的下部的左右两侧相对称地设有梯形结构，所述接地板与所述介质基板的宽度相等。An omnidirectional broadband monopole antenna, comprising a ground plate, a dielectric substrate, a feed network and a radiation patch, the thickness of the dielectric substrate is 1.6 mm, the ground plate is arranged on one side of the dielectric substrate, and the other side of the dielectric substrate The side is provided with a feed network and a radiation patch. The left and right sides of the upper part of the radiation patch are symmetrically provided with chamfers. The middle part of the radiation welt is etched with a T-shaped groove. A trapezoidal structure is arranged symmetrically, and the width of the ground plate is equal to that of the dielectric substrate.
所述T形槽的槽宽为3mm。The slot width of the T-shaped slot is 3 mm.
所述介质基板由环氧树脂板材料做成。The dielectric substrate is made of epoxy resin board material.
所述介质基板的相对介电常数为4.4，损耗正切值为0.02。The relative dielectric constant of the dielectric substrate is 4.4, and the loss tangent is 0.02.
所述介质基板的规格尺寸为30mm×35mm。The standard size of the dielectric substrate is 30mm×35mm.
所述接地板的宽度为35mm。The width of the ground plate is 35mm.
与现有技术相比，本发明的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:
1.本发明天线在带宽为4GHz和6.5GHz频段工作时的E面和H面的辐射方向图分别呈近似“8”字形及接近全向辐射的特性,满足全向天线的设计要求。1. When the antenna of the present invention works in the 4GHz and 6.5GHz frequency bands, the radiation patterns of the E plane and the H plane are respectively approximately "8" and close to omnidirectional radiation characteristics, which meet the design requirements of the omnidirectional antenna.
2.本发明天线具有明显的带宽展宽效果，回波损耗低于-10dB的可用带宽由之前3.09GHz—9GHz增加至3.09GHz—10.5GHz，并大幅度降低了中频时的回波损耗，提升了天线在中频频段的性能，从而提高了该天线的实用性，满足超宽带系统对天线设计的要求。2. The antenna of the present invention has obvious bandwidth widening effect, the available bandwidth with return loss lower than -10dB is increased from 3.09GHz-9GHz to 3.09GHz-10.5GHz, and the return loss at intermediate frequency is greatly reduced, improving the The performance of the antenna in the intermediate frequency band improves the practicability of the antenna and meets the requirements of the ultra-wideband system for antenna design.
附图说明Description of drawings
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图2是是本发明的侧视结构示意图。Fig. 2 is a schematic side view of the structure of the present invention.
图3是本发明具体实施例的结构尺寸示意图。Fig. 3 is a schematic diagram of the structural dimensions of a specific embodiment of the present invention.
图4是本发明天线中辐射贴片在有无T形槽状态下的回波损耗仿真结果。Fig. 4 is the simulation result of the return loss of the radiating patch in the antenna of the present invention with or without the T-shaped slot.
图5(a)和图5(b)是本发明天线分别在4GHz和6.5GHz两个频率处的辐射方向图。Fig. 5(a) and Fig. 5(b) are radiation patterns of the antenna of the present invention at two frequencies of 4GHz and 6.5GHz respectively.
附图标记：1-接地板2-介质基板3-馈电网络4-辐射贴片5-T形槽6-梯形结构7-倒角Reference signs: 1-ground plate 2-dielectric substrate 3-feed network 4-radiation patch 5-T-shaped slot 6-trapezoidal structure 7-chamfer
具体实施方式detailed description
下面结合附图对本发明作进一步的描述：Below in conjunction with accompanying drawing, the present invention will be further described:
如图1至图3所示，一种全向性的宽带单极子天线，包括接地板1、介质基板2、馈电网络3和辐射贴片4，介质基板2由常用的FR4(环氧树脂)板材料做成，相对介电常数为4.4，损耗正切值为0.02，厚度为1.6mm，天线的形状如图1所示，天线采用侧馈方式，输入阻抗为50Ω。As shown in Figures 1 to 3, an omnidirectional broadband monopole antenna includes a ground plate 1, a dielectric substrate 2, a feed network 3 and a radiation patch 4, and the dielectric substrate 2 is made of commonly used FR4 (epoxy Resin) plate material, the relative permittivity is 4.4, the loss tangent value is 0.02, and the thickness is 1.6mm. The shape of the antenna is shown in Figure 1. The antenna is side-fed and the input impedance is 50Ω.
本实施例中的天线是通过蚀刻方法制作在规格尺寸为30mm×35mm×1.6mm的介质基板2上，接地板1刻蚀于介质基板2一侧，介质基板2的另一侧刻蚀有馈电网络3和辐射贴片4，馈电网络3由微带线构成，接地板1为矩形结构并与介质基板等宽，宽度均为35mm，辐射贴片4上刻蚀有T形槽5，本实施例中T形槽5的槽宽为3mm。此外在辐射贴片4的上部的左右两侧相对称设有倒角7，在辐射贴片4的下部的左右两侧相对称地设有梯形结构6。The antenna in this embodiment is fabricated on a dielectric substrate 2 with a size of 30mm×35mm×1.6mm by etching, the ground plate 1 is etched on one side of the dielectric substrate 2, and the other side of the dielectric substrate 2 is etched with a feeder. The electric network 3 and the radiation patch 4, the feed network 3 is composed of a microstrip line, the ground plate 1 has a rectangular structure and is as wide as the dielectric substrate, and the width is 35mm, and the radiation patch 4 is etched with a T-shaped groove 5, In this embodiment, the width of the T-shaped groove 5 is 3 mm. In addition, chamfers 7 are symmetrically provided on the left and right sides of the upper part of the radiation patch 4 , and trapezoidal structures 6 are symmetrically provided on the left and right sides of the lower part of the radiation patch 4 .
如图3所示为本发明天线经过优化设计后的具体的尺寸，参数如下：W＝30mm，W1＝2.5mm，W2＝13.5mm，a＝1mm，b＝2mm，a1＝3mm，b1＝4mm，a2＝10mm，b2＝3mm，W3＝5mm，W4＝3.75mm，L＝35mm，L1＝14.5mm，L2＝13.5mm，L3＝12.5mm，L4＝2.85mm，L5＝1.6mm，介质基板2厚度为1.6mm，介质基板下面是矩形接地板。As shown in Figure 3, it is the specific size of the antenna of the present invention after optimized design, and the parameters are as follows: W=30mm, W1=2.5mm, W2=13.5mm, a=1mm, b=2mm, a1=3mm, b1=4mm , a2=10mm, b2=3mm, W3=5mm, W4=3.75mm, L=35mm, L1=14.5mm, L2=13.5mm, L3=12.5mm, L4=2.85mm, L5=1.6mm, dielectric substrate 2 The thickness is 1.6mm, and there is a rectangular ground plate under the dielectric substrate.
图4中为所设计的天线的回波损耗及与不带T形槽的5天线仿真结果比较图。为了研究天线的全向辐射特性，运用全波三维电磁仿真，对天线在3.2、6.5GHz频率处进行仿真优化，得到天线在不同频率处的方向图(图5(a)和图5(b))，并对仿真结果进行了分析。Figure 4 shows the return loss of the designed antenna and its comparison with the simulation results of 5 antennas without T-shaped slots. In order to study the omnidirectional radiation characteristics of the antenna, the antenna is simulated and optimized at the frequencies of 3.2 and 6.5 GHz by using full-wave 3D electromagnetic simulation, and the radiation patterns of the antenna at different frequencies are obtained (Fig. 5(a) and Fig. 5(b) ), and analyzed the simulation results.
由图4可知天线在通过设置T形槽5进行优化过后，具有明显的带宽展宽效果，回波损耗低于-10dB的可用带宽由之前3.09GHz—9GHz增加至3.09GHz—10.5GHz，并大幅度降低了中频时的回波损耗，提升了天线在中频频段的性能，从而提高了该天线的实用性，满足超宽带系统对天线设计的要求。经过仿真分析，在图5(a)和图5(b)中可以看出,天线在带宽为4GHz和6.5GHz频段工作时的E面和H面的辐射方向图分别呈近似“8”字形及接近全向辐射的特性，满足全向天线的设计要求。It can be seen from Figure 4 that after the antenna is optimized by setting the T-shaped slot 5, it has an obvious bandwidth widening effect, and the available bandwidth with a return loss lower than -10dB increases from the previous 3.09GHz-9GHz to 3.09GHz-10.5GHz, and a large The return loss at the intermediate frequency is reduced, and the performance of the antenna in the intermediate frequency band is improved, thereby improving the practicability of the antenna and meeting the requirements of the ultra-wideband system for antenna design. After simulation analysis, it can be seen from Figure 5(a) and Figure 5(b) that the radiation patterns of the E-plane and H-plane when the antenna operates in the 4GHz and 6.5GHz frequency bands are approximately in the shape of "8" and The characteristics of near-omnidirectional radiation meet the design requirements of omnidirectional antennas.
本发明并不限于上文描述的实施方式。以上对具体实施方式的描述旨在描述和说明本发明的技术方案，上述的具体实施方式仅仅是示意性的，并不是限制性的。在不脱离本发明宗旨和权利要求所保护的范围情况下，本领域的普通技术人员在本发明的启示下还可做出很多形式的具体变换，这些均属于本发明的保护范围之内。The present invention is not limited to the embodiments described above. The above description of specific embodiments is intended to describe and illustrate the technical solution of the present invention, and the above specific embodiments are only illustrative and not restrictive. Without departing from the gist of the present invention and the scope protected by the claims, those skilled in the art can also make many specific changes under the inspiration of the present invention, and these all belong to the protection scope of the present invention.
Claims (6)
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| CN201610519848.4A CN106099329A (en) | 2016-07-01 | 2016-07-01 | A kind of isotropic wideband monopole sub antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728407A (en) * | 2019-01-15 | 2019-05-07 | 中国计量大学 | Ultra Wideband Wearable Antenna |
| CN109921186A (en) * | 2019-03-04 | 2019-06-21 | 南京邮电大学 | A Monopole Capsule Antenna with Flexible Multi-Steel Arch Structure |
| CN111293433A (en) * | 2020-03-19 | 2020-06-16 | 上海电力大学 | A flexible hexagonal ultra-wideband antenna |
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| US20090189825A1 (en) * | 2008-01-25 | 2009-07-30 | Max Ammann | Ultra wide band antenna with a spline curve radiating element |
| CN202797266U (en) * | 2012-06-25 | 2013-03-13 | 中国计量学院 | Inverted-ladder-shaped single-frequency microstrip antenna |
| CN204375968U (en) * | 2014-12-18 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | A kind of ultra-wideband antenna based on T-slot |
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2016
- 2016-07-01 CN CN201610519848.4A patent/CN106099329A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090189825A1 (en) * | 2008-01-25 | 2009-07-30 | Max Ammann | Ultra wide band antenna with a spline curve radiating element |
| CN202797266U (en) * | 2012-06-25 | 2013-03-13 | 中国计量学院 | Inverted-ladder-shaped single-frequency microstrip antenna |
| CN204375968U (en) * | 2014-12-18 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | A kind of ultra-wideband antenna based on T-slot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109728407A (en) * | 2019-01-15 | 2019-05-07 | 中国计量大学 | Ultra Wideband Wearable Antenna |
| CN109921186A (en) * | 2019-03-04 | 2019-06-21 | 南京邮电大学 | A Monopole Capsule Antenna with Flexible Multi-Steel Arch Structure |
| CN111293433A (en) * | 2020-03-19 | 2020-06-16 | 上海电力大学 | A flexible hexagonal ultra-wideband antenna |
| CN111293433B (en) * | 2020-03-19 | 2024-09-20 | 上海电力大学 | Flexible hexagonal ultra-wideband antenna |
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Application publication date: 20161109 |
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