CN2445457Y - Double dipole type broad-band printed aerial - Google Patents
Double dipole type broad-band printed aerial Download PDFInfo
- Publication number
- CN2445457Y CN2445457Y CN 00220230 CN00220230U CN2445457Y CN 2445457 Y CN2445457 Y CN 2445457Y CN 00220230 CN00220230 CN 00220230 CN 00220230 U CN00220230 U CN 00220230U CN 2445457 Y CN2445457 Y CN 2445457Y
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- antenna
- aerial
- substrate
- arms
- dipole
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Abstract
The utility model relates to a double dipole type broad-band printed aerial, which is a broad-band and plane integrated aerial in the aerial in a broad-band wireless transmit-receive system. Both sides of a basal piece of the aerial are respectively and symmetrically provided with two dipole type vibrators with equal thickness, width and length; both symmetrical arms of the dipole type vibrators on both sides of the basal piece are respectively communicated by plated through holes. A left arm of the aerial is led out from a symmetrical central line of both arms of the aerial on one side of the basal piece by a feed line; a right arm of the aerial is led out from a symmetrical central line of both arms of the aerial on the other side of the basal piece by another feed line.
Description
The utility model is the broadband of antenna in a kind of broadband wireless receive-transmit system, the plane integrated technology.
Printed antenna owing in light weight, volume is little, low section, be easy to advantage such as conformal and integrated and obtained extensive studies and application.Frequency band is narrow to be the major defect of ordinary printed antenna.For example, common micro-strip paster antenna bandwidth only has 1～5%.
Although existing at present number of ways is come the frequency band of this class antenna of broadening, as reducing the Q value of microstrip antenna equivalent resonant circuit, promptly increase substrate thickness, reduce substrate relative dielectric constant etc.But the substrate thickness increase can cause the obvious excitation of surface wave; The potentiality that reduce dielectric constant are also very limited, and minimum value is 1, i.e. air dielectric.And for example, make substrate, can make the obvious broadening of frequency band, but, make antenna efficiency very low because loss is big with Ferrite Material.
In addition, additional parasitic patch, employing electromagnetic coupled feeding classification are taked the little band forms of multilayer, and structures such as utilization row ripple battle array or logarithm period battle array also can widening frequency band.But the broadening of these microstrip antenna frequency bands is often with the cost that is reduced to of the increase of volume and complexity and efficient.For example, additional parasitic patch, band spread is limited; Multi-layer microstrip antenna adopts multi layer substrate to make, complex structure, and manufacture craft is loaded down with trivial details; Row ripple battle array or logarithm period battle array structural area obviously increase several times.And for example, U type groove printed antenna, though band performance is good, cross polarization is serious, radiation characteristic is impaired.
Therefore, can accomplish simultaneously that the printed antenna of broadband performance and simple structure is also very rare.
The purpose of this utility model just provides a kind of miniaturization that is adapted to broadband wireless receive-transmit system antenna, the integrated broadband double dipole molded breadth band printed antenna in plane.
Double dipole molded breadth band printed antenna of the present utility model is made up of dielectric substrate and metal conducting layer, this antenna is arranged with two thick, wide, long all identical dipole-type oscillators respectively in the positive and negative both sides of substrate, two arms are communicated with just antisymmetric both sides by plated-through hole respectively about the dipole-type oscillator of the positive and negative both sides of substrate, the left arm of antenna is drawn from the symmetrical center line of substrate one side antenna two arms by feeder line, and the right arm of antenna is drawn from the symmetrical center line of substrate opposite side antenna two arms by another feeder line.Space D=1～2 of antenna two arms millimeter.The number of plated-through hole is 2～4, and the diameter in hole is 0.5～2 millimeter.The width of dipole-type oscillator is 1～5 millimeter.
Advantage of the present utility model is:
1. broadband character: BW＞13% (VSWR＜1.5), BW＞23% (VSWR＜2.0).(BW is a bandwidth)
The beamwidth of antenna of this new structure is much wideer than common printed antenna bandwidth.Common printed antenna frequency band is very narrow, and for example, common little band rectangular patch antenna bandwidth BW only has 1～5%, and band linear slit crack antenna only has 1～2%.On identical dielectric substrate, the bandwidth of this quadripole subtype antenna is 10 times of bandwidth of ordinary printed dipole antenna, and the ordinary printed dipole is about 2.4%, and this quadripole subtype antenna can reach more than 24%.
Some common printed antenna has certain requirement to the dielectric constant and the thickness of dielectric substrate.The ordinary printed dipole generally requires dielectric thickness more than 1/10th of operation wavelength, and for example, frequency is when 3GHz, reach suitable bandwidth, dielectric substrate thickness must be for more than the 10mm, on the substrate of 0.8mm, bandwidth only has 2%, and this moment, efficient was very low.And this quadripole subtype antenna is on the substrate of 0.8mm, and bandwidth just can reach more than 25%.
2. simple in structure, consistency of performance is good, easily once prints moulding in batches, need not add parasitic circuit and multiple-layered patches, and the feeding network plane is integrated, and miniaturization is simple and practical.
This novel dipole antenna configuration is very simple, and convenient and circuit is integrated on a slice circuit board, and the length of feeder line can require according to the cloth version of integrated circuit to adjust.The broadening of the frequency band of ordinary printed antenna is often with the cost that is reduced to of the increase of volume and complexity and efficient.For example, additional parasitic patch, employing electromagnetic coupled feeding classification are taked the little band forms of multilayer, and structures such as utilization row ripple battle array or logarithm period limit can widening frequency band.But additional parasitic patch, band spread is limited; Multi-layer microstrip antenna adopts multi layer substrate to make, complex structure, and manufacture craft is loaded down with trivial details; Row ripple battle array or logarithm period battle array structural area obviously increase several times.And for example, U type groove printed antenna, though band performance is good, cross polarization is serious, radiation characteristic is impaired.And the utility model just can overcome above shortcoming, accomplishes miniaturization, integrated wide frequency band.
Fig. 1 is a single-sided structure schematic diagram of the present utility model.Substrate 1, dipole-type oscillator 2, plated-through hole 3, feeder line 4 are wherein arranged.
Fig. 2 be among Fig. 1 A-A to the sectional structure schematic diagram.Substrate 1, dipole-type oscillator 2, plated-through hole 3, feeder line 41, feeder line 42 are wherein arranged.
Embodiment of the present utility model is as follows:
Adopt the manufacture craft of circuitron version, both sides at substrate make printed antenna and feeder line, (be symmetrical in substrate behind four of the antenna of Zhi Zuoing arms as requested, two arms of every side), metal antenna arm inboard in the substrate both sides is provided with plated-through hole 3, and the antenna of substrate both sides is connected promptly can be made into antenna of the present utility model.Antenna structure with 2.4GHz non-parking charge vast of heaven line part is that the selected parameters of example is:
The substrate dielectric constant: 3.5, substrate thickness 0.8mm
Antenna outer end distance (being the distance between the antenna two arm outer ends): 55mm
Antenna brachium 26.5mm, plated-through hole diameter: 0.8mm;
The inner distance of antenna (being the distance between antenna two arm the inners): 2mm;
The width of feeder line: 1.8mm; Antenna oscillator width: 4mm;
The distance of antenna oscillator top margin substrate top: 1mm;
The distance of antenna oscillator bottom margin substrate bottom: 2mm;
The number of plated-through hole be every about each 3 on two arms.
Antenna size with 5.8GHz non-parking charge card antenna part is an example:
Substrate dielectric constant: 3.5 substrate thickness: 0.8mm;
Antenna outer end distance: inner distance: the 2mm of 20mm antenna;
Plated-through hole diameter: 0.8mm antenna brachium: 9mm;
Feeder line width: 2.0mm antenna oscillator width: 4mm;
Antenna oscillator top margin substrate top apart from 1mm, antenna oscillator bottom margin substrate bottom apart from 2mm, the number of plated-through hole be about 3 on the every limit of two arms.
Claims (4)
1. double dipole molded breadth band printed antenna, formed by substrate and metal conducting layer, it is characterized in that this antenna is arranged with two thick, wide, long all identical dipole-type oscillators (2) respectively in the positive and negative both sides of substrate (1), two arms are communicated with just antisymmetric two arms by plated-through hole (3) respectively about the dipole-type oscillator (2) of substrate (1) both sides, the left arm of antenna is drawn from the symmetrical center line of substrate (1) one side antenna two arms by feeder line (41), and the right arm of antenna is drawn from the symmetrical center line of substrate (1) opposite side antenna two arms by another feeder line (42).
2. double dipole molded breadth band printed antenna according to claim 1 is characterized in that space D=1～2 millimeter of antenna two arms.
3. double dipole molded breadth band printed antenna according to claim 1 and 2, the number that it is characterized in that plated-through hole (3) is 2～4, the diameter in hole is 0.5～2 millimeter.
4. double dipole molded breadth band printed antenna according to claim 1 and 2, the width that it is characterized in that dipole-type oscillator (2) is 1～5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220230 CN2445457Y (en) | 2000-05-11 | 2000-05-11 | Double dipole type broad-band printed aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220230 CN2445457Y (en) | 2000-05-11 | 2000-05-11 | Double dipole type broad-band printed aerial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445457Y true CN2445457Y (en) | 2001-08-29 |
Family
ID=33585322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220230 Expired - Fee Related CN2445457Y (en) | 2000-05-11 | 2000-05-11 | Double dipole type broad-band printed aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445457Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867090A (en) * | 2010-02-10 | 2010-10-20 | 成都九洲迪飞科技有限责任公司 | Microstrip dipole antenna with feed network and longitudinal groove |
| CN102883526A (en) * | 2011-07-14 | 2013-01-16 | 深圳光启高等理工研究院 | PCB (printed circuit board) of integrated antenna |
| CN105161829A (en) * | 2015-09-29 | 2015-12-16 | 南京邮电大学 | Air circular circularly-polarized antenna |
| WO2018112987A1 (en) * | 2016-12-25 | 2018-06-28 | 胡洁维 | Bipolar element antenna |
-
2000
- 2000-05-11 CN CN 00220230 patent/CN2445457Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867090A (en) * | 2010-02-10 | 2010-10-20 | 成都九洲迪飞科技有限责任公司 | Microstrip dipole antenna with feed network and longitudinal groove |
| CN102883526A (en) * | 2011-07-14 | 2013-01-16 | 深圳光启高等理工研究院 | PCB (printed circuit board) of integrated antenna |
| CN102883526B (en) * | 2011-07-14 | 2016-02-10 | 深圳光启高等理工研究院 | A kind of antenna integrated pcb board |
| CN105161829A (en) * | 2015-09-29 | 2015-12-16 | 南京邮电大学 | Air circular circularly-polarized antenna |
| WO2018112987A1 (en) * | 2016-12-25 | 2018-06-28 | 胡洁维 | Bipolar element antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |