CN202905941U - A miniaturized multilayer chip antenna - Google Patents
A miniaturized multilayer chip antenna Download PDFInfo
- Publication number
- CN202905941U CN202905941U CN 201220215164 CN201220215164U CN202905941U CN 202905941 U CN202905941 U CN 202905941U CN 201220215164 CN201220215164 CN 201220215164 CN 201220215164 U CN201220215164 U CN 201220215164U CN 202905941 U CN202905941 U CN 202905941U
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- metal
- tortuous
- antenna
- hole
- plain conductor
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Abstract
The utility model relates to a miniaturized multilayer chip antenna comprising a medium body, a first bonding pad, a second bonding pad, a first metal through hole, a second metal through hole, first tortuous metal wires, second tortuous metal wires, third metal through holes, and coupled metal. The first bonding pad, the second bonding pad, the first metal through hole, the second metal through hole, the first tortuous metal wires, the second tortuous metal wires, the third metal through holes, and the coupled metal are embedded in the medium body. The first bonding pad and the second bonding pad are disposed on two ends of the bottom of the medium body, respectively. The first tortuous metal wires and the second tortuous metal wires in parallel are disposed on two sides of the first metal through hole, the second metal through hole, and third metal through holes and are connected with the first metal through hole, the second metal through hole, and third metal through holes. A capacitor structure is formed by the first tortuous metal wires and the second tortuous metal wires. The beneficial effects of the miniaturized multilayer chip antenna are that self resonance and coupling resonance of the antenna are achieved in a small size by the multilayer metal layer structure, that operating frequency is tuned by the coupling resonance in order to achieve small size so that the chip antenna is miniaturized.
Description
Technical field
The utility model relates to the portable radio communication device technical field, relates in particular to the antenna technology of this technical field.
Background technology
Antenna is one of vitals of wireless communication system.Along with the fast development of modern radio system, to the miniaturization of system, lightweight with portablely proposed strict requirement, promoted the miniaturization development of applied active, passive device wherein and obtained huge progress.Yet antenna but often becomes parts the heaviest in the system and reveals, and becomes one of bottleneck of system's miniaturization development.
Usually adopt monopole antenna in the wireless communication system, its operation principle is theoretical based on quarter-wave resonance, so size is relevant with its operating frequency, and is subject to the restriction of wavelength.For satisfying the needs of system's miniaturization, inevitable requirement realizes small-sized monopole antenna by the electric small-size design.
The miniaturization of antenna must be accompanied by the deterioration of some performance index, especially adopts the antenna of conventional planar structure, brings the deterioration of index even more serious in the time of size reduction.
The utility model content
Main purpose of the present utility model provides a kind of miniaturization multi-layered chip antenna and mounting structure thereof, guarantee that this antenna component and mounting structure thereof are simple in structure, cost is low, volume is little, little to other communication devices interference, can satisfy the application of the multiple portable communications such as GSM, GPS bluetooth.
The technical solution of the utility model is: a kind of miniaturization multi-layered chip antenna, it is characterized in that, comprise the first pad in dielectric and the embedding medium body, the second pad, the first metal throuth hole, the second metal throuth hole, the first tortuous plain conductor, the second tortuous plain conductor, the 3rd metal throuth hole and coupling metal, described the first pad and the second pad lay respectively at the two ends of dielectric bottom, the first tortuous plain conductor is parallel with the second tortuous plain conductor and lay respectively at the first metal throuth hole, the second metal throuth hole and the 3rd metal throuth hole two ends also are attached thereto, and the first tortuous plain conductor and the second tortuous plain conductor consist of capacitance structure.
The above-mentioned first tortuous plain conductor and the second tortuous plain conductor and two ranked third and also comprise several layers of coupling metal between the metal throuth hole.
A kind of mounting structure of miniaturization multi-layered chip antenna comprises pcb board and antenna; Described pcb board is by the front metal layer, dielectric layer and floor, back side metal level are laminated, the front metal layer is divided into metallic region and without metallic region, described without the dielectric layer under the metallic region directly exposed out, the middle part of described front metal layer has a mounting groove, described mounting groove is positioned at a section of metallic region and has been embedded in a feeder line, described feeder line extends to mounting groove and is positioned at without one section of metallic region and forms and connect pad, relatively be spaced a pcb board pad with being connected pad, be arranged with grounding through hole in order to guarantee the Electro Magnetic Compatibility of antenna in described metallic region and the metallic region without metallic region intersection and mounting groove both sides; Described antenna is installed in one section that is positioned in the mounting groove without metallic region, and the first pad of antenna is connected in the connection pad of pcb board, the second pad connecting PCB board pad of the antenna other end.
The beneficial effects of the utility model are: the utility model adopts multiple layer metal layer structure to make antenna realize self-resonance and coupled resonance in very little volume, and by the tuning operating frequency of coupled resonance, realizes electric small-size, thereby make this antenna component miniaturization.The utility model antenna is easy for installation, flexible configuration, only needs simple transmission line feeder circuit to get final product, and makes this antenna have Electro Magnetic Compatibility without grounding through hole around the metallic region on the pcb board, has reduced the interference to other circuit devcie.In addition, this antenna has good omni-directional, can be good at receiving all directions electromagnetic wave signal.In a word, this antenna can be applied to the multiple Portable Radio Communication such as GSM, GPS, bluetooth system.
Description of drawings
Fig. 1 is the threedimensional model structure chart of the utility model antenna.
Fig. 2 is the pcb board Facad structure figure that the utility model is used for the antenna performance test.
Fig. 3 is the pcb board side-looking structure chart that the utility model is used for the antenna performance test.
Fig. 4 is the return loss plot of the utility model antenna.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of miniaturization multi-layered chip antenna 9, it is characterized in that, comprise the first pad 91 in dielectric 90 and the embedding medium body 90, the second pad 92, the first metal throuth hole 93, the second metal throuth hole 94, the first tortuous plain conductor 95, the second tortuous plain conductor 96, the 3rd metal throuth hole 97 and coupling metal 98, described the first pad 91 and the second pad 92 lay respectively at the two ends of dielectric 90 bottoms, the first tortuous plain conductor 95 is parallel with the second tortuous plain conductor 96 and lay respectively at the first metal throuth hole 93, the second metal throuth hole 94 and the 3rd metal throuth hole 97 two ends also are attached thereto, and the first tortuous plain conductor 95 and the second tortuous plain conductor 96 consist of capacitance structure.
Ranked third at the above-mentioned first tortuous plain conductor 95 and the second tortuous plain conductor 96 and two and also to comprise several layers of coupling metal 98 between the metal throuth hole 97.
Described antenna component 9 utilizes the two-layer first tortuous plain conductor 95 and the second tortuous plain conductor 96 and the first metal throuth hole 93, the second metal throuth hole 94 and the 3rd metal throuth hole 97 can self-resonance in very little volume, by coupling metal 98 tuning resonance frequencies.
Shown in Fig. 2 and 3, a kind of mounting structure of miniaturization multi-layered chip antenna comprises that pcb board 1 and miniaturization multi-layered chip antenna 9(are hereinafter to be referred as antenna 9); Described pcb board 1 is by front metal layer 16, dielectric layer 17 and floor, back side metal level 18 are laminated, front metal layer 16 is divided into metallic region 13 and without metallic region 15, described without the dielectric layer 17 under the metallic region 15 directly exposed out, the middle part of described front metal layer 16 has a mounting groove, described mounting groove is positioned at a section of metallic region 13 and has been embedded in 50 ohm of transmission feeder 10(hereinafter to be referred as feeder line 10), described feeder line 10 extends to mounting groove and is positioned at without one section of metallic region 15 and forms and connect pad 11, relatively be spaced a pcb board pad 12 with being connected pad 11, be arranged with grounding through hole 14 in order to guarantee the Electro Magnetic Compatibility of antenna in described metallic region 13 and the metallic region 13 without metallic region 15 intersections and mounting groove both sides; Described antenna 9 is installed in one section that is positioned in the mounting groove without metallic region 15, and the first pad 91(of antenna 9 feedback point pad) be connected in the connection pad 11 of pcb board 1, the unloaded pad of the second pad 92(of antenna 9 other ends) connecting PCB board pad 12.
Adopt 50 ohm of transmission feeders 10 on the above-mentioned pcb board 1, directly be connected with the first pad 91 of antenna 9, simplified the structure of circuit and pcb board 1.
Above-mentioned pcb board 1 effectively raise the radiance of antenna without metallic region 15, grounding through hole 14 has simultaneously guaranteed the Electro Magnetic Compatibility of antenna, making antenna 9 can not disturb the work of other circuit devcie, whole system to make antenna only is to have realized high-performance under the very small size of 3.2 * 1.6 * 1.2mm3 in size.
Above-mentioned pcb board 1 front and metal layer on back be provided with strengthen antenna radiation performance without metallic region 15, and be provided with grounding through hole 14 around should the zone and prevent other circuit devcie normal operation on the antenna interference pcb board.
After this Antenna Design is good, pcb board 1 is installed is of a size of 20mm * 40mm, thickness is 1mm, and dielectric material is FR4, and dielectric constant is 4.4, is 20mm * 8mm without the metallic region size, and the short circuit microstrip line is 0.2mm * 1mm.It is the LTCC material of 0.1mm that antenna component 9 adopts 12 bed thickness altogether, its dielectric constant is 14, the first tortuous plain conductor 95 and the second tortuous plain conductor 96 lay respectively at the 1st layer, 11 layers of antenna component, interconnected by the first metal throuth hole 93, the second metal throuth hole 94 and the 3rd metal throuth hole 97, coupling metal 98 lays respectively at the 3rd layer, the 5th layer, the 7th layer and the 9th layer.
After design is finished, make this antenna by existing LTCC production line, the return loss of antenna as shown in Figure 4, frequency from 2.4GHz to the 2.48GHz scope in return loss less than-8dB.The maximum gain test of antenna is 0.5dBi at 2.45GHz, and has preferably omni-directional.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present utility model, should to be understood to that protection range of the present utility model is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from the utility model essence according to disclosed these technology enlightenments of the utility model, and these distortion and combination are still in protection range of the present utility model.
Claims (2)
1. miniaturization multi-layered chip antenna, it is characterized in that, comprise the first pad in dielectric and the embedding medium body, the second pad, the first metal throuth hole, the second metal throuth hole, the first tortuous plain conductor, the second tortuous plain conductor, the 3rd metal throuth hole and coupling metal, described the first pad and the second pad lay respectively at the two ends of dielectric bottom, the first tortuous plain conductor is parallel with the second tortuous plain conductor and lay respectively at the first metal throuth hole, the second metal throuth hole and the 3rd metal throuth hole two ends also are attached thereto, and the first tortuous plain conductor and the second tortuous plain conductor consist of capacitance structure.
2. a kind of miniaturization multi-layered chip antenna according to claim 1 is characterized in that, the above-mentioned first tortuous plain conductor and the second tortuous plain conductor and two ranked third and also comprise several layers of coupling metal between the metal throuth hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215164 CN202905941U (en) | 2012-05-14 | 2012-05-14 | A miniaturized multilayer chip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215164 CN202905941U (en) | 2012-05-14 | 2012-05-14 | A miniaturized multilayer chip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905941U true CN202905941U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220215164 Expired - Fee Related CN202905941U (en) | 2012-05-14 | 2012-05-14 | A miniaturized multilayer chip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905941U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934725A (en) * | 2015-06-26 | 2015-09-23 | 中国船舶重工集团公司第七二四研究所 | Inner monitor network module for digital phased-array antenna |
| CN105811100A (en) * | 2016-04-29 | 2016-07-27 | 普联技术有限公司 | Plug-in antenna, plug-in antenna assembly and communication equipment |
| CN106299623A (en) * | 2016-09-27 | 2017-01-04 | 北京小米移动软件有限公司 | Wireless Fidelity WiFi antenna and manufacture method |
| CN108879083A (en) * | 2017-05-09 | 2018-11-23 | 昌泽科技有限公司 | The production method of chip signal element |
-
2012
- 2012-05-14 CN CN 201220215164 patent/CN202905941U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934725A (en) * | 2015-06-26 | 2015-09-23 | 中国船舶重工集团公司第七二四研究所 | Inner monitor network module for digital phased-array antenna |
| CN105811100A (en) * | 2016-04-29 | 2016-07-27 | 普联技术有限公司 | Plug-in antenna, plug-in antenna assembly and communication equipment |
| CN106299623A (en) * | 2016-09-27 | 2017-01-04 | 北京小米移动软件有限公司 | Wireless Fidelity WiFi antenna and manufacture method |
| CN108879083A (en) * | 2017-05-09 | 2018-11-23 | 昌泽科技有限公司 | The production method of chip signal element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20140514 |