CN1147027C - Microstrip antenna - Google Patents
Microstrip antenna Download PDFInfo
- Publication number
- CN1147027C CN1147027C CNB011131446A CN01113144A CN1147027C CN 1147027 C CN1147027 C CN 1147027C CN B011131446 A CNB011131446 A CN B011131446A CN 01113144 A CN01113144 A CN 01113144A CN 1147027 C CN1147027 C CN 1147027C
- Authority
- CN
- China
- Prior art keywords
- sheet
- radome
- base plate
- metal base
- medium substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The present invention relates to a microstrip antenna used indoors, which is composed of a coaxial joint, a metal bottom board, a dielectric substrate, a round iron sheet, support dielectric, a director sheet and an antenna housing. The present invention is characterized in that the dielectric substrate is made of dielectric with a low dielectric constant, the relative permittivity of the support dielectric epsilon <r> <1.2, and the diameter (d) of the director sheet is shorter than that (D) of the round iron sheet; the antenna housing is made of ABC plastics with the thickness of 1 millimeter or glass reinforced plastics; distance between the director sheet and the round iron sheet and distance between the director sheet and the antenna housing are effectively adjusted to achieve best effect. The present invention achieves the effects that operating frequency is 2.4 GHz, the bandwidth is 6.4%, the frequency of the antenna is high, and the antenna is suitable for an IP wireless network.
Description
The present invention relates to microwave antenna, particularly a kind ofly be used for indoor microstrip antenna.
Under the promotion of global IT application industry tide, computer and network technology have obtained development rapidly.At present, most of networks all adopt the comprehensive wiring mode to realize transfer of data, but no matter are that twisted-pair feeder, coaxial line and optical fiber all have limitation.Mainly show:
● the occasion that some does not allow stringing, ditching and is difficult to connect up;
● the certain user requires the occasion of mobile office;
● require the occasion of emergent quickly networking or interim networking (as recovery after the calamity, the commercial exhibition of short-term etc.);
● when being subjected to flood, earthquake, typhoon invasion and attack, require to keep the area of reliable communication;
● require transmission channel that the occasion of certain confidentiality is arranged;
At above-mentioned mobility, flexibility and agility, all very good wireless network market of the many transnational communication common carriers in the whole world drops into the radio network product of substantial contribution development utilization spread spectrum radio communication transmission technology.Expect about calendar year 2001, Europe will have 15% network system all will adopt wireless network, and world's wireless network market turnover will reach about 1,000,000,000 dollars.
The dedicated antenna system of wireless network is radio network product requisite key in wide area network is used, and it directly has influence on the overall performance of network, even is related to the success or failure of network system architecture.
Existing indoor miniature antenna also has the employing microstrip antenna on the market, but general microstrip antenna bandwidth has only 3～4%, therefore is not suitable for the need of work of IP wireless network microwave antenna.
The objective of the invention is to overcome the deficiency of above-mentioned prior art, prior art is improved, a kind of indoor concealed microstrip antenna is provided, operating frequency is in the free frequency range of 2.4GHZ, and bandwidth increases to 6.4%, can be used as the microwave antenna of IP wireless network.
The object of the present invention is achieved like this:
A kind ofly be used for indoor microstrip antenna, by coaxial fitting, metal base plate, medium substrate, circle paster, Supporting Media, guide sheet into and radome constitutes, this coaxial fitting links to each other with metal base plate, medium substrate, circle paster, Supporting Media and to guide sheet into superimposed with one heart successively on described metal base plate, radome covers on this metal base plate and week of relying on radome is stuck in the periphery of medium substrate along inwall, it is characterized in that said medium substrate is to be about 2.6 material by dielectric constant to make; The relative dielectric constant ∈ of Supporting Media
r＜1.2; The said sheet of guiding into is a metal, and its diameter d＜D (diameter of circle paster); The wall thickness of said radome is about 1 millimeter.
The thickness of said Supporting Media is promptly guided the distance h between sheet and the circle paster into
1Be to determine when making the effect of drawing mutually of guiding sheet into best by fine setting.
Saidly guide distance h between sheet and the radome into
2Also definite by finely tuning.Promptly adjust h
2, make the reflected wave of radome and incident wave anti-phase, make standing wave be reduced to minimum, bandwidth reaches desired value.
Said radome is to adopt the ABS plastic or the fiberglass of low-k to make.
The invention will be further described below in conjunction with embodiment and accompanying drawing thereof.
Fig. 1 is an embodiment of the invention structure cross-sectional schematic.
Among the figure:
1---coaxial fitting 2---metal base plate 3---medium substrate
4---justify paster 5---Supporting Media 6---and guide sheet into
7---radome
See also Fig. 1, Fig. 1 is the structure cross-sectional schematic of microstrip antenna most preferred embodiment of the present invention, microstrip antenna of the present invention by coaxial fitting 1, metal base plate 2, medium substrate 3, circle paster 4, Supporting Media 5, guide sheet 6 into and radome 7 is formed, this coaxial fitting 1 welds together with metal base plate 2, medium substrate 3, circle paster 4, Supporting Media 5 and to guide sheet 6 into superimposed with one heart successively on described metal base plate 2, radome 7 covers on this metal base plate 2, and the week that relies on radome 7 be stuck in the periphery of medium substrate 3 along inwall, be characterized in:
1. medium substrate 3 adopts lower being about of dielectric constant ∈ 2.6 polytetrafluoroethylene glass mat makes, and this is in order to make the microstrip antenna size unlikely too big and select for use, and guarantees that enough frequencies are for wanting;
2. if the diameter of circle paster 4 is a D ≈ half-wavelength, and the diameter of guiding sheet into requires d＜D when being d;
3. select relative medium electric constant ∈
r＜1.2 material is made Supporting Media;
4. select the passive sheet 6 of guiding into of metal, the distance h between sheet 6 and the circle paster 4 is guided in meticulous adjustment into
1, the effect of guiding into of guiding sheet 6 into is reached till the best;
5. the wall thickness of radome 7 is about 1 millimeter ABS plastic or fiberglass and makes, and reasonably adjusts radome 7 and guide distance h between the sheet 6 into
2, make the reflected wave of radome 7 and incident wave anti-phase, make standing wave be reduced to minimum, bandwidth reaches desired value.
After above-mentioned selection and making, the foregoing description is tested, consequently:
1. operating frequency is in the free frequency range of 2.4GHZ;
2. bandwidth increases to 6.4%;
3. rate of finished products improves greatly, and antenna efficiency also improves greatly;
4. can satisfy the requirement of IP wireless network microwave antenna.
This shows that microstrip antenna of the present invention has been realized goal of the invention.
Claims (4)
1, a kind ofly be used for indoor microstrip antenna, by coaxial fitting (1), metal base plate (2), medium substrate (3), circle paster (4), Supporting Media (5), guiding sheet (6) and radome (7) into constitutes, this coaxial fitting (1) links to each other with metal base plate (2), and medium substrate (3), circle paster (4), Supporting Media (5) and to guide sheet (6) into superimposed with one heart successively on described metal base plate (2), the week that radome (7) covers that this metal base plate (2) is gone up and relies on radome (7) is stuck in the periphery of medium substrate (3) along inwall, it is characterized in that said medium substrate (3) is is that 2.6 material is made by dielectric constant; The relative dielectric constant ∈ of Supporting Media (5)
r＜1.2; Said to guide sheet (6) into be metal, and its diameter is less than the diameter of circle paster (4); The wall thickness of said radome (7) is 1 millimeter.
2, microstrip antenna according to claim 1 is characterized in that the thickness of said Supporting Media, promptly guides the distance h between sheet (6) and the circle paster (4) into
1Be to make the effect of guiding into of guiding sheet (6) into when reaching the best and definite by fine setting.
3,, it is characterized in that the said distance h between sheet (6) and the radome (7) of guiding into according to the described microstrip antenna of claim 1
2Also definite by finely tuning, promptly adjust h
2, make the reflected wave and the incident wave of radome (7) anti-phase, make standing wave be reduced to minimum, bandwidth reaches desired value.
4,, it is characterized in that said radome (7) is to adopt the ABS plastic or the fiberglass of low-k to make according to claim 1 or 2 or 3 described microstrip antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011131446A CN1147027C (en) | 2001-06-28 | 2001-06-28 | Microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011131446A CN1147027C (en) | 2001-06-28 | 2001-06-28 | Microstrip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1393960A CN1393960A (en) | 2003-01-29 |
| CN1147027C true CN1147027C (en) | 2004-04-21 |
Family
ID=4659886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011131446A Expired - Lifetime CN1147027C (en) | 2001-06-28 | 2001-06-28 | Microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147027C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609927B (en) * | 2009-07-16 | 2013-01-30 | 南京华格电汽塑业有限公司 | Fiberglass radome modified by PE micro powder and preparation method thereof |
| CN101609928B (en) * | 2009-07-16 | 2013-01-30 | 南京华格电汽塑业有限公司 | Fiberglass radome modified by glass beads and preparation method thereof |
| JP5555087B2 (en) * | 2010-07-30 | 2014-07-23 | 株式会社豊田中央研究所 | Radar equipment |
| CN102694256B (en) * | 2012-04-27 | 2015-08-26 | 深圳光启创新技术有限公司 | A kind of fiberglass radome |
| CN104466355A (en) * | 2013-09-18 | 2015-03-25 | 深圳光启创新技术有限公司 | Microstrip antenna and network bridge antenna |
-
2001
- 2001-06-28 CN CNB011131446A patent/CN1147027C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1393960A (en) | 2003-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20040421 |
|
| CX01 | Expiry of patent term |