CN209045760U - A kind of cross-shaped patch antenna - Google Patents
A kind of cross-shaped patch antenna Download PDFInfo
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- CN209045760U CN209045760U CN201821484588.2U CN201821484588U CN209045760U CN 209045760 U CN209045760 U CN 209045760U CN 201821484588 U CN201821484588 U CN 201821484588U CN 209045760 U CN209045760 U CN 209045760U
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- 239000000758 substrate Substances 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 239000003989 dielectric material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
本实用新型公开了一种十字形贴片天线，由辐射单元、馈电网络、金属地板和介质基板组成。辐射单元由介质基板上的贴片组成，该贴片为十字形贴片，在介质基板底部放置一个金属地板。本天线尺寸为50mm*50mm*1.6mm，具有小型化的特点；‑10dB频段为6.2～8.6GHz，具有良好的阻抗匹配。最高增益达到1.2dB，能够实现定向辐射，是一款应用前景良好的十字形贴片天线。
The utility model discloses a cross-shaped patch antenna, which is composed of a radiation unit, a feeding network, a metal floor and a medium substrate. The radiation unit consists of a patch on a dielectric substrate, which is a cross-shaped patch, and a metal floor is placed at the bottom of the dielectric substrate. The size of this antenna is 50mm*50mm*1.6mm, and it has the characteristics of miniaturization; the ‑10dB frequency band is 6.2~8.6GHz, with good impedance matching. The highest gain reaches 1.2dB, which can realize directional radiation. It is a cross-shaped patch antenna with good application prospects.
Description
技术领域technical field
本实用新型涉及通信领域，特别是涉及一种天线。The utility model relates to the field of communication, in particular to an antenna.
背景技术Background technique
随着移动通信技术的快速发展，用户数量逐渐增加，无线通信系统数据容量增大，这就使得通信终端的天线必须具有较高的数据传输效率和覆盖较宽频带的能力。同时为适应无线终端小体积、低剖面等要求，天线结构应该尽量减小。在这样的发展趋势下，人们采用体积小、易集成、效率高及分析方法比较成熟的微带贴片天线来研究天线频带的展宽。With the rapid development of mobile communication technology, the number of users increases gradually, and the data capacity of wireless communication system increases, which makes the antenna of the communication terminal must have higher data transmission efficiency and the ability to cover a wider frequency band. At the same time, in order to meet the requirements of small size and low profile of the wireless terminal, the antenna structure should be minimized. Under such a development trend, people use microstrip patch antennas with small size, easy integration, high efficiency and relatively mature analysis methods to study the broadening of the antenna frequency band.
实用新型内容Utility model content
为了解决上述问题，本实用新型提供一种十字形贴片天线。In order to solve the above problems, the present invention provides a cross-shaped patch antenna.
一种十字形贴片天线，由辐射单元、馈电网络、金属地板和介质基板组成，所述介质基板为矩形，在介质基板底部放置一个金属地板，所示金属地板为矩形，且在该矩形金属地板上开了两个矩形缝隙；辐射单元由介质基板上的贴片组成，该贴片为十字形贴片，所述馈电网络由50Ω微带线组成，所述50Ω微带线在介质基板的上表面，并且与辐射单元相连。A cross-shaped patch antenna is composed of a radiating unit, a feeding network, a metal floor and a dielectric substrate, the dielectric substrate is rectangular, and a metal floor is placed at the bottom of the dielectric substrate, the metal floor is shown as a rectangle, and in the rectangle Two rectangular slits are opened on the metal floor; the radiating unit is composed of a patch on the dielectric substrate, which is a cross-shaped patch, and the feeding network is composed of a 50Ω microstrip line, and the 50Ω microstrip line is in the medium The upper surface of the substrate is connected with the radiation unit.
所述十字形贴片位于介质基板正中心，并且关于中心对称。The cross-shaped patch is located in the center of the dielectric substrate and is symmetrical about the center.
所述金属地板的长度为介质基板长度的1/4。The length of the metal floor is 1/4 of the length of the dielectric substrate.
所述矩形金属地板上开的两个矩形缝隙尺寸相同且对称。The two rectangular slits opened on the rectangular metal floor have the same size and are symmetrical.
所述介质基板采用FR-4介质材料。The dielectric substrate adopts FR-4 dielectric material.
本实用新型的效果在于：与传统天线相比，本天线尺寸为 50mm*50mm*1.6mm，具有小型化的特点；-10dB频段为6.2～8.6GHz，具有良好的阻抗匹配。最高增益达到1.2dB，能够实现定向辐射，是一款应用前景良好的十字形贴片天线。The effect of the utility model is: compared with the traditional antenna, the size of the antenna is 50mm*50mm*1.6mm, which has the characteristics of miniaturization; the -10dB frequency band is 6.2-8.6GHz, and has good impedance matching. The highest gain reaches 1.2dB, which can realize directional radiation. It is a cross-shaped patch antenna with good application prospects.
附图说明Description of drawings
图1为本实用新型实例的结构示意图。FIG. 1 is a schematic structural diagram of an example of the present utility model.
图2为本实用新型实例的S11特性曲线。Fig. 2 is the S11 characteristic curve of the example of the utility model.
图3为本实用新型实例的VSWR特性曲线。Fig. 3 is the VSWR characteristic curve of the example of the utility model.
图4为本实用新型实例的方向图。FIG. 4 is a direction diagram of an example of the present invention.
具体实施方式Detailed ways
下面结合附图及实施方式对本实用新型作进一步详细的说明。The present utility model will be described in further detail below in conjunction with the accompanying drawings and the embodiments.
如图1所示，一种十字形贴片天线，由辐射单元、馈电网络、金属地板和介质基板组成，所述介质基板为矩形，在介质基板底部放置一个金属地板，所示金属地板为矩形，且在该矩形金属地板上开了两个矩形缝隙；辐射单元由介质基板上的贴片组成，该贴片为十字形贴片，所述馈电网络由50Ω微带线组成，所述 50Ω微带线在介质基板的上表面，并且与辐射单元相连。As shown in Figure 1, a cross-shaped patch antenna consists of a radiating element, a feeding network, a metal floor and a dielectric substrate. The dielectric substrate is rectangular, and a metal floor is placed at the bottom of the dielectric substrate. The metal floor shown is rectangular, and two rectangular slits are opened on the rectangular metal floor; the radiation unit is composed of a patch on the dielectric substrate, the patch is a cross-shaped patch, the feeding network is composed of a 50Ω microstrip line, the said The 50Ω microstrip line is on the upper surface of the dielectric substrate and is connected to the radiation unit.
所述十字形贴片位于介质基板正中心，并且关于中心对称。The cross-shaped patch is located in the center of the dielectric substrate and is symmetrical about the center.
所述金属地板的长度为介质基板长度的1/4。The length of the metal floor is 1/4 of the length of the dielectric substrate.
所述矩形金属地板上开的两个矩形缝隙尺寸相同且对称。The two rectangular slits opened on the rectangular metal floor have the same size and are symmetrical.
所述介质基板采用FR-4介质材料。The dielectric substrate adopts FR-4 dielectric material.
使用电磁仿真软件Ansoft HFSS进行仿真分析，得出天线尺寸结构： W＝50mm,L＝50mm,L1＝12.5mm,L2＝10mm，L3＝20mm,W1＝10mm,W2＝5mm，W3＝20mm，W4＝12mm， W5＝30mm，H＝1.6mm。如图1所示。The electromagnetic simulation software Ansoft HFSS is used for simulation analysis, and the antenna size and structure are obtained: W=50mm, L=50mm, L1 = 12.5mm , L2=10mm, L3 = 20mm, W1 = 10mm, W2 =5mm, W3 = 20mm, W4 =12mm, W5 =30mm, H=1.6mm. As shown in Figure 1.
图2为本实用新型实例的S11特性曲线，-10dB频带宽度为6.2～8.6GHz，频带深度为-26dB。Figure 2 is the S11 characteristic curve of an example of the utility model, the -10dB frequency band width is 6.2-8.6GHz, and the frequency band depth is -26dB.
图3为本实用新型实例的VSWR特性曲线，VSWR≤5的频带宽度为6.25～ 8.4GHz。FIG. 3 is a VSWR characteristic curve of an example of the utility model, and the frequency bandwidth of VSWR≤5 is 6.25-8.4 GHz.
图4为本实用新型实例的方向图，该十字形贴片天线能实现定向辐射，最高增益达到1.2dB。FIG. 4 is a directional diagram of an example of the present invention. The cross-shaped patch antenna can realize directional radiation, and the highest gain reaches 1.2dB.
以上所述仅为本实用新型的最佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则以内所做的任何修改、等同替换和改进，均应包含在本实用新型的保护范围之内。The above is only the best embodiment of the present utility model, and is not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of the new protection.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484588.2U CN209045760U (en) | 2018-09-12 | 2018-09-12 | A kind of cross-shaped patch antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484588.2U CN209045760U (en) | 2018-09-12 | 2018-09-12 | A kind of cross-shaped patch antenna |
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| CN209045760U true CN209045760U (en) | 2019-06-28 |
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| CN201821484588.2U Expired - Fee Related CN209045760U (en) | 2018-09-12 | 2018-09-12 | A kind of cross-shaped patch antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164873A (en) * | 2020-09-23 | 2021-01-01 | 中国人民解放军空军工程大学 | Microstrip antenna unit based on microstrip line branch node loading and method for forming low RCS microstrip array antenna by microstrip antenna unit |
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2018
- 2018-09-12 CN CN201821484588.2U patent/CN209045760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164873A (en) * | 2020-09-23 | 2021-01-01 | 中国人民解放军空军工程大学 | Microstrip antenna unit based on microstrip line branch node loading and method for forming low RCS microstrip array antenna by microstrip antenna unit |
| CN112164873B (en) * | 2020-09-23 | 2024-04-16 | 中国人民解放军空军工程大学 | Microstrip antenna unit based on microstrip line branch loading and method for forming low-RCS microstrip array antenna |
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