CN104409836A - Electromagnetic wave transmitter - Google Patents
Electromagnetic wave transmitter Download PDFInfo
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- CN104409836A CN104409836A CN201410748286.1A CN201410748286A CN104409836A CN 104409836 A CN104409836 A CN 104409836A CN 201410748286 A CN201410748286 A CN 201410748286A CN 104409836 A CN104409836 A CN 104409836A
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- radiation
- department
- metal
- electromagnetic wave
- feeding portion
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Abstract
The invention provides an electromagnetic wave transmitter. The electromagnetic wave transmitter comprises an antenna, a feed-in part, a metal connecting part, a transmission line, a metal coupling part and a grounding metal part, wherein the antenna comprises a first radiation part and a second radiation part, one end of the first radiation part is connected with one end of the feed-in part, and the other end of the first radiation part is bent towards the feed-in part and is spaced from the feed-in part by a preset distance so as to form a non-closed ring; the second radiation part is connected to the feed-in part and is positioned in the non-closed ring, and a resistor is bridged between the second radiation part and the first radiation part; the metal connecting part is connected with the other end of the feed-in part; the metal coupling part is perpendicular to the metal connecting part, and one end of the metal coupling part is inserted between the metal connecting part and the transmission line and is electrically connected with the metal connecting part and the transmission line respectively; the other end of the metal coupling part is adjacent to the grounding metal part, and a clearance is formed between the other end of the metal coupling part and the grounding metal part. Effective impedance matching can be carried out by the electromagnetic wave transmitter.
Description
Technical field
The present invention relates to technical field of radio, particularly relate to a kind of electromagnetic wave launcher.
Background technology
Along with the development of science and technology, electromagnetic wave technology is deep into the various aspects of our life gradually.An electromagnetic important characteristic is that it can in any medium or true airborne spread.Be transmitted to receiving terminal process at electromagnetic wave from transmitting terminal, the loss of energy directly affects the distance of electromagnetic signal propagation and the quality of signal transmission.
Impedance matching is very important factor in wireless radio transmission.Wireless radio transmission is made up of antenna and transmission line, and antenna and transmission line have impedance again, so in order to improve efficiency of transmission, is necessary to carry out impedance matching.Electromagnetic wave can be reduced by group wolf coupling and launch problem at the signal through different medium border.But it is little about the research of the resistance matching problem in electromagnetic transmission process at present.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of electromagnetic wave launcher, can carry out effective impedance matching.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of electromagnetic wave launcher, described electromagnetic wave launcher comprises antenna, feeding portion, metallic connection parts, transmission line, metal couplings and grounded metal portion, wherein, described antenna comprises the first Department of Radiation and the second Department of Radiation, one end of described first Department of Radiation connects one end of described feeding portion, the other end of described first Department of Radiation bends towards described feeding portion, and to be separated by preset distance with described feeding portion, to form non-closed annular, described second Department of Radiation to be connected on described feeding portion and to be positioned at described non-closed annular, and have resistance between described second Department of Radiation and described first Department of Radiation, described metallic connection parts is connected to the other end of described feeding portion, described metal couplings is perpendicular to described metallic connection parts, and one end of described metal couplings is inserted between described metallic connection parts and described transmission line, and is electrically connected with described metallic connection parts and described transmission line respectively, the other end of described metal couplings also and between described grounded metal portion forms gap near described grounded metal portion.
Preferably, insulator dielectric material is filled with in described gap.
Preferably, described insulator dielectric material is insulating cement or pottery.
The invention has the beneficial effects as follows: the situation being different from prior art, electromagnetic wave launcher of the present invention by coupling metal couplings between metallic connection parts and transmission line, metal couplings and formation gap, grounded metal portion produce coupling capacitance, first Department of Radiation of antenna and the span of the second Department of Radiation establish resistance, thus effectively can complete impedance matching, improve efficiency of transmission.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electromagnetic wave launcher embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the schematic diagram of electromagnetic wave launcher embodiment of the present invention.The electromagnetic wave launcher of the embodiment of the present invention comprises antenna 1, feeding portion 2, metallic connection parts 3, transmission line 4, metal couplings 5 and grounded metal portion 6, wherein, antenna 1 comprises the first Department of Radiation 11 and the second Department of Radiation 12, one end of first Department of Radiation 11 connects one end of feeding portion 2, the other end of the first Department of Radiation 11 bends towards feeding portion 2, and to be separated by preset distance with feeding portion 2, to form non-closed annular 13, second Department of Radiation 12 to be connected on feeding portion 2 and to be positioned at non-closed annular 13, and have resistance 14 between the second Department of Radiation 12 and the first Department of Radiation 11, metallic connection parts 3 is connected to the other end of feeding portion 2, metal couplings 5 is perpendicular to metallic connection parts 3, and one end of metal couplings 5 is inserted between metallic connection parts 3 and transmission line 4, and is electrically connected with metallic connection parts 3 and transmission line 4 respectively, the other end of metal couplings 5 also and between grounded metal portion 6 forms gap 51 near grounded metal portion 6.
In the present embodiment, insulator dielectric material is filled with in gap 51.Insulator dielectric material can insulating cement or pottery etc.Metallic connection parts 3 is in atmosphere exposed.
Wherein, the adjustable length of metal couplings 5, by regulating the length of metal couplings 5, can change the width in gap 51, thus regulates the size of coupling capacitance, completes the impedance matching with antenna 1.Resistance 14 can improve voltage standing wave ratio and effectively avoid the disequilibrium of gain in passband.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. an electromagnetic wave launcher, it is characterized in that, described electromagnetic wave launcher comprises antenna, feeding portion, metallic connection parts, transmission line, metal couplings and grounded metal portion, wherein, described antenna comprises the first Department of Radiation and the second Department of Radiation, one end of described first Department of Radiation connects one end of described feeding portion, the other end of described first Department of Radiation bends towards described feeding portion, and to be separated by preset distance with described feeding portion, to form non-closed annular, described second Department of Radiation to be connected on described feeding portion and to be positioned at described non-closed annular, and have resistance between described second Department of Radiation and described first Department of Radiation, described metallic connection parts is connected to the other end of described feeding portion, described metal couplings is perpendicular to described metallic connection parts, and one end of described metal couplings is inserted between described metallic connection parts and described transmission line, and is electrically connected with described metallic connection parts and described transmission line respectively, the other end of described metal couplings also and between described grounded metal portion forms gap near described grounded metal portion.
2. electromagnetic wave launcher according to claim 1, is characterized in that, is filled with insulator dielectric material in described gap.
3. electromagnetic wave launcher according to claim 2, is characterized in that, described insulator dielectric material is insulating cement or pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748286.1A CN104409836A (en) | 2014-12-09 | 2014-12-09 | Electromagnetic wave transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748286.1A CN104409836A (en) | 2014-12-09 | 2014-12-09 | Electromagnetic wave transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104409836A true CN104409836A (en) | 2015-03-11 |
Family
ID=52647443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410748286.1A Pending CN104409836A (en) | 2014-12-09 | 2014-12-09 | Electromagnetic wave transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104409836A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340200A (en) * | 2008-08-12 | 2009-01-07 | 苏州佳世达电通有限公司 | Hertz wave transmitting/receiving device and mobile communications system thereof |
| CN203134968U (en) * | 2013-01-14 | 2013-08-14 | 中国计量学院 | Round coplanar feed single frequency microstrip antenna |
| CN204216216U (en) * | 2014-12-09 | 2015-03-18 | 成都国蓉科技有限公司 | Electromagnetic wave launcher |
-
2014
- 2014-12-09 CN CN201410748286.1A patent/CN104409836A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340200A (en) * | 2008-08-12 | 2009-01-07 | 苏州佳世达电通有限公司 | Hertz wave transmitting/receiving device and mobile communications system thereof |
| CN203134968U (en) * | 2013-01-14 | 2013-08-14 | 中国计量学院 | Round coplanar feed single frequency microstrip antenna |
| CN204216216U (en) * | 2014-12-09 | 2015-03-18 | 成都国蓉科技有限公司 | Electromagnetic wave launcher |
Non-Patent Citations (1)
| Title |
|---|
| 景博，张劼，孙勇: "《智能网络传感器与无线传感器网络》", 31 January 2011 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |