CN2427894Y - Broadband printed array antenna - Google Patents
Broadband printed array antenna Download PDFInfo
- Publication number
- CN2427894Y CN2427894Y CN 00220229 CN00220229U CN2427894Y CN 2427894 Y CN2427894 Y CN 2427894Y CN 00220229 CN00220229 CN 00220229 CN 00220229 U CN00220229 U CN 00220229U CN 2427894 Y CN2427894 Y CN 2427894Y
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- China
- Prior art keywords
- antenna
- substrate
- dipole element
- array antenna
- double dipole
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Abstract
The utility model relates to a broadband printed array antenna, which is a receiving and emitting antenna for a broadband communications system. The array antenna is composed of four double dipole element antennas arranged on a straight line; a basal piece edge on the lower end of each of the double dipole element antennas is provided with a metal reflecting surface vertical to the basal piece; the four double dipole element antennas are communicated by feed lines. Each double dipole element antenna is composed of a couple of dipole type vibrators symmetric to the basal piece in the mirror direction; two arms of each of the dipole vibrators are respectively communicated with an arm symmetric to the other side of the basal piece by a plated through hole. The feed line is also symmetric to the basal piece and is positioned on positive and negative sides of the basal piece.
Description
The utility model is a kind of dual-mode antenna that is used for wide-band communication system, belongs to the technical field that the microwave communication dual-mode antenna is made.
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, minimum value 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.
Goal of the invention of the present utility model provides a kind of miniaturization that is used for broad-band antenna communication system antenna, integrated wide band printed array antenna.
Wide band printed array antenna of the present utility model, 4 double dipole element antennas are arranged and are point-blank constituted, on the substrate edge of double dipole element antenna lower end, the metallic reflection face of a slice perpendicular to substrate is set, 4 double dipole element antennas are connected by feeder line.Each double dipole element antenna is made up of to the dipole-type oscillator that is symmetrical in substrate a pair of mirror, and two arms of dipole element are communicated with by plated-through hole with the arm that is symmetrical in the substrate another side respectively.Feeder line also mirror is positioned at the tow sides of substrate to being symmetrical in substrate.
Advantage of the present utility model is:
1. broadband character: BW＞15% (VSWR＜1.5), BW＞25% (VSWR＜2.0)
The aerial array of this new structure is made up of the novel double dipole antenna element in broadband, so the common printed antenna bandwidth of bandwidth ratio is much wide.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 quadripole subtype antenna is 10 times of bandwidth of ordinary printed dipole antenna, and the ordinary printed dipole is about 2.4%, and 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, and this quadripole subtype antenna is on the substrate of 0.8mm, and bandwidth just can reach more than 25%.On the substrate of 0.8mm, bandwidth only has 2%, and this moment, efficient was very low.
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 is simple and practical.
This novel dipole antenna array structure is very simple, and array-fed network is the plane integrated circuit, and consistency of performance is good.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, adopt the electromagnetic coupled feeding classification, take the little band forms of multilayer, utilize the structures such as earthwave battle array or logarithm period battle array 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 the utility model has all overcome above defective, and not only bandwidth, and making simply.
Fig. 1 is a general structure schematic diagram of the present utility model.Comprising: double dipole element antenna 1, dipole-type oscillator 11, substrate 2, feeder line 3, metallic reflection face 4, plated-through hole 5.
Fig. 2 is an A-A place cutaway view among Fig. 1.Comprising dipole element 11, plated-through hole 5, substrate 2.
Embodiment of the present utility model is as follows:
Adopt the manufacture craft of double side printed wiring board, make the dipole-type oscillator 11 and the feeder line 3 of antenna in the positive and negative both sides of substrate 2, be provided with plated-through hole 5 in the inboard of the dipole-type oscillator 11 of each double dipole element antenna.The oscillator of positive and negative two side mirrors of substrate to symmetry is communicated with, the double dipole element antenna of the positive and negative both sides of substrate and the equal mirror of feeder line are to symmetry, then on edge below the substrate, be provided with a strip metal reflecting surface 4, be provided with a through hole at the middle part of this metallic reflection face, so that the feeder line of antenna is drawn, so promptly can be made into wide band printed array antenna of the present utility model.
Below specify with the example that is applied as of wide band printed array antenna in the W-CDMA base station intelligent antenna.Its concrete step is identical with above-described step.
At W-CDMA frequency range (1920-1980MHz, 2110-2170MHz), adopt the Wideband printed antenna, utilize metal cylinder as reflecting surface as the array basic structural unit, constitute circular array, form the intelligent antenna array that is applicable to the mobile communication electromagnetic environment.Carry out the standing-wave ratio test result at microwave dark room and show that the intelligent array antenna that is made of as the unit this Wideband printing array antenna can cover W-CDMA transceiver communication wideband section well, thereby satisfy the requirement of modern broadband transfer of data.
In the W-CDMA frequency range, this Wideband is printed the array antenna size:
Centre-to-centre spacing=the 73mm of per two element antennas
Antenna oscillator is to the distance=37mm of metallic reflection face
Length=the 22mm of individual antenna oscillator
Aperture=the 0.8mm of plated-through hole
Width=the 4mm of individual antenna oscillator
Test result:
Recording near this novel W-CDMA array antenna actual measurement bandwidth that is operated in the 2Ghz in microwave dark room is:
BW=2230-1695=535MHz=27．3％(VSWR＜2．0)
BW=2095-1750=345MHz=17．9％(VSWR＜1．5)
In microwave dark room, the wide band printed array antenna E face directional diagram of operating frequency f=2GHz to be measured, this antenna gain is 12.5dB, E face half-power width is 23 degree.
Claims (3)
1. wide band printed array antenna, formed by substrate and conductive layer, it is characterized in that this array antenna is made of 4 double dipole element antennas (1) arrangement point-blank, on substrate (2) edge of double dipole element antenna (1) lower end, the metallic reflection face (4) of a slice perpendicular to substrate (2) is set, and 4 double dipole element antennas (1) are connected by feeder line (3).
2. wide band printed array antenna according to claim 1, it is characterized in that each double dipole element antenna (1) is made up of to the dipole-type oscillator (11) that is symmetrical in substrate (2) a pair of mirror, two arms of dipole element (11) are communicated with by plated-through hole (5) with the arm that is symmetrical in substrate (2) another side respectively.
3. wide band printed array antenna according to claim 1 and 2, it is characterized in that feeder line (3) also mirror be positioned at the tow sides of substrate to being symmetrical in substrate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220229 CN2427894Y (en) | 2000-05-11 | 2000-05-11 | Broadband printed array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220229 CN2427894Y (en) | 2000-05-11 | 2000-05-11 | Broadband printed array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427894Y true CN2427894Y (en) | 2001-04-25 |
Family
ID=33585321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220229 Expired - Fee Related CN2427894Y (en) | 2000-05-11 | 2000-05-11 | Broadband printed array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427894Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388563C (en) * | 2003-01-26 | 2008-05-14 | 中兴通讯股份有限公司 | Linear type intelligent antenna array utilized in mobile communication |
| CN101997170A (en) * | 2010-11-24 | 2011-03-30 | 东南大学 | Double-section impedance converter feed omnidirectional broadband dipole array antenna |
| CN102195143A (en) * | 2011-03-10 | 2011-09-21 | 东南大学 | Broadband shunt-feed omnidirectional antenna array with inclination angle |
| CN102800933A (en) * | 2011-05-31 | 2012-11-28 | 深圳光启高等理工研究院 | Mobile phone |
| CN107394409A (en) * | 2017-07-07 | 2017-11-24 | 常州柯特瓦电子有限公司 | One kind orientation WLAN antennas |
| CN113054445A (en) * | 2020-10-22 | 2021-06-29 | 西南交通大学 | Conformal array antenna of capsule endoscope based on ferrite medium |
-
2000
- 2000-05-11 CN CN 00220229 patent/CN2427894Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388563C (en) * | 2003-01-26 | 2008-05-14 | 中兴通讯股份有限公司 | Linear type intelligent antenna array utilized in mobile communication |
| CN101997170A (en) * | 2010-11-24 | 2011-03-30 | 东南大学 | Double-section impedance converter feed omnidirectional broadband dipole array antenna |
| CN102195143A (en) * | 2011-03-10 | 2011-09-21 | 东南大学 | Broadband shunt-feed omnidirectional antenna array with inclination angle |
| CN102800933A (en) * | 2011-05-31 | 2012-11-28 | 深圳光启高等理工研究院 | Mobile phone |
| CN102800933B (en) * | 2011-05-31 | 2015-03-11 | 深圳光启高等理工研究院 | Mobile phone |
| CN107394409A (en) * | 2017-07-07 | 2017-11-24 | 常州柯特瓦电子有限公司 | One kind orientation WLAN antennas |
| CN113054445A (en) * | 2020-10-22 | 2021-06-29 | 西南交通大学 | Conformal array antenna of capsule endoscope based on ferrite medium |
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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 |