CN201508913U - Series feed micro-strip array antenna - Google Patents
Series feed micro-strip array antenna Download PDFInfo
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- CN201508913U CN201508913U CN2009201991805U CN200920199180U CN201508913U CN 201508913 U CN201508913 U CN 201508913U CN 2009201991805 U CN2009201991805 U CN 2009201991805U CN 200920199180 U CN200920199180 U CN 200920199180U CN 201508913 U CN201508913 U CN 201508913U
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- array antenna
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- radiating
- series feed
- strip array
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- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The utility model discloses a series feed micro-strip array antenna which comprises a micro-strip substrate, a plurality of impedance transformer network units, a plurality of radiating units, a first feeding point, a first radiating layer, a second radiating layer 2 and a second feeding point, wherein the plurality of radiating units and the plurality of impedance transformer network units are pasted to one side of the micro-strip substrate to form the first radiating layer after being connected at intervals, and the end point of the last impedance transformer network unit serves as the first feeding point; and the plurality of impedance transformer network units and the plurality of radiating units are pasted to the other side of the micro-strip substrate to form the second radiating layer after being connected at intervals, and the end point of the last radiating units serves as the second feeding point, and the first feeding point is connected with the second feeding point through a coaxial line. Since the technology of the micro-strip array antenna is adopted and the micro-strip substrate is made of polytetrafluoroethylene materials, the series feed micro-strip array antenna has the advantages of high gain, low dissipation, low cost, good radiation characteristic, simple structure and convenient integration, and meets the requirement of wireless local area network communication.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of series feed micro-strip array antenna.
Background technology
(WLAN as transmission medium, provides the function of traditional LAN with the wireless multiple access channel for Local Area Network, extension LAN), has realized at any time, broadband network inserts everywhere as cable LAN.And characteristics such as along with the continuous development of its application, it is easily installed, easily expansion, manageability, easy care, high mobility show especially day by day, and have shown the development prospect that it is unprecedented gradually.
Antenna as in the communication system an important wireless device, the quality of its performance will directly influence the performance of wireless device.Along with radio communication and radar system constantly improve development, antenna performance has been proposed the requirement of characteristic such as in light weight, that volume is little, make simply, easily conformal, broadband and cost be low.Exactly because microstrip antenna has satisfied above-mentioned requirements and has been subjected to people's attention deeply, application in recent years also more and more widely.But the module gain of microstrip antenna is generally 6dBi～8dBi, and the micro-strip array antenna that therefore normal employing is made up of the microband paste unit obtains bigger gain or realizes specific directivity.Array antenna can realize individual antenna the sophisticated functions that can't realize, have greater flexibility, higher signal volume, can significantly improve the performance of system.
Microstrip antenna in the WLAN (wireless local area network) generally is circle or rectangular patch to be slotted improve directionality in the market, but gain is still lower, and loss is big, and power is little.Therefore press for and propose the requirement that a kind of high-gain, low-loss array antenna satisfy the WLAN communication system.
Summary of the invention
The utility model is big in order to overcome prior art loss in WLAN (wireless local area network), and the low deficiency that gains provides a kind of series feed micro-strip array antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Series feed micro-strip array antenna comprises little belt substrate, impedance transformer network unit, radiating element, first distributing point, first radiating layer, second radiating layer two, second distributing point; A plurality of radiating elements are with after a plurality of impedance transformer network unit intervals are connected, adhere on a side of little belt substrate, constitute first radiating layer, wherein the end points of last impedance transformer network unit is as first distributing point, a plurality of impedance transformer networks unit adheres on the opposite side of little belt substrate with after a plurality of radiating elements are connected at interval, constitutes second radiating layer, wherein the end points of last a plurality of radiating element is as second distributing point, and first distributing point is connected by coaxial line with second distributing point.
Described little belt substrate is a polytetrafluoroethylmaterial material.Described impedance transformer network adopts 1/4 λ impedance matching, and adopts the series feed mode.Described first distributing point, second distributing point adopt coaxial feeding, and characteristic impedance is 50 Ω.
The utility model adopts the micro-strip array antenna technology, and little belt substrate uses polytetrafluoroethylmaterial material, and it is high to have a gain, and loss is low, and cost is low, and radiation characteristic is good, and is simple in structure, is convenient to integratedly, satisfies the requirement of wireless LAN communication.
Description of drawings:
Fig. 1 is the structural front view of series feed micro-strip array antenna;
Fig. 2 is the structure rearview of series feed micro-strip array antenna;
Fig. 3 is the standing-wave ratio curve chart of series feed micro-strip array antenna;
Fig. 4 is the E surface radiation directional diagram of series feed micro-strip array antenna;
Fig. 5 is the H surface radiation directional diagram of series feed micro-strip array antenna.
Embodiment
As depicted in figs. 1 and 2, series feed micro-strip array antenna comprises little belt substrate 1, impedance transformer network unit 2, radiating element 3, first distributing point 4, first radiating layer 5, second radiating layer 26, second distributing point 7; After a plurality of radiating elements 3 and a plurality of impedance transformer networks unit 2 is connected at interval, adhere on a side of little belt substrate 1, constitute first radiating layer (5), wherein the end points of last impedance transformer network unit (2) is as first distributing point 4, a plurality of impedance transformer networks unit 2 is with after a plurality of radiating elements 3 are connected at interval, adhere on the opposite side of little belt substrate 1, constitute second radiating layer 6, wherein the end points of last a plurality of radiating element 3 is connected by coaxial line with second distributing point 7 as second distributing point, 7, the first distributing points 4.
Described series feed micro-strip array antenna, each radiating element 3 equal in length of first radiating layer 5 and second radiating layer 6, less than 1/8 of central task wavelength, width is stairway degression by 1/45 of central task wavelength to 1/60 of central task wavelength.First radiating layer and second radiating layer adopt the little belt substrate 1 of metal material to adopt polytetrafluoroethylmaterial material cheaply.Described first distributing point 4, second distributing point 7 adopt coaxial feeding, and characteristic impedance is 50 Ω.In order to realize the bandwidth of broad, series feed micro-strip array antenna adopts the series compensation feeding classification, forms limit ejected wave bundle.Described impedance network converter unit 2 adopts the more piece coupling, and its width is 0.5～2.5mm, can adjust according to the design needs.The modes of emplacement that forms antenna is perpendicular to horizontal plane, and polarization mode is a perpendicular polarization.
Series feed micro-strip array antenna:
Little belt substrate adopts polytetrafluoroethylmaterial material, and dielectric constant is 2.65, and thickness is 1mm.First radiating layer and second radiating layer adopt Copper Foil.Each radiating element equal in length is 15.8mm, and width successively decreases from 9mm to 6mm by arithmetic progression.The adjacent radiation unit be spaced apart 16.23mm, guaranteed each radiating element homophase feed.Series feed micro-strip array antenna adopts the series compensation feeding classification, forms limit ejected wave bundle.The impedance network unit adopts three joint couplings, and width is followed successively by 0.7mm, 2.3mm, 1.8mm.First distributing point and second distributing point adopt coaxial feeding, and diameter is 1.5mm, and characteristic impedance is 50 Ω.Series feed micro-strip array antenna comprises little belt substrate, first radiating layer and second radiating layer, and employing 17 * 2 is totally 34 radiating elements, and antenna is of a size of 550mm * 12mm.The antenna modes of emplacement is vertical the placement, is the perpendicular polarization mode therefore.Series feed micro-strip array antenna adopts the R3767CH network analyzer to test standing-wave ratio curve such as Fig. 3 of gained.As seen from Figure 3, its bandwidth of series feed micro-strip array antenna is 5300MHz～5900MHz (standing-wave ratio is less than 1.4), and relative bandwidth is 10.7%, is applicable to the 5.8GHz frequency range of IEEE802.11a WLAN standard.E surface radiation directional diagram such as Fig. 4 of series feed micro-strip array antenna, its main lobe gain reaches 18.86dBi.H surface radiation directional diagram such as Fig. 5 of series feed micro-strip array antenna ,-3dB beamwidth are-0.29 °, have realized omnidirectional radiation preferably.
Claims (4)
1. a series feed micro-strip array antenna is characterized in that comprising little belt substrate (1), impedance transformer network unit (2), radiating element (3), first distributing point (4), first radiating layer (5), second radiating layer two (6), second distributing point (7); After a plurality of radiating elements (3) and a plurality of impedance transformer networks unit (2) are connected at interval, adhere on a side of little belt substrate (1), constitute first radiating layer (5), wherein the end points of last impedance transformer network unit (2) is as first distributing point (4), after a plurality of impedance transformer networks unit (2) and a plurality of radiating elements (3) are connected at interval, adhere on the opposite side of little belt substrate (1), constitute second radiating layer (6), wherein the end points of last a plurality of radiating element (3) is as second distributing point (7), and first distributing point (4) is connected by coaxial line with second distributing point (7).
2. a kind of series feed micro-strip array antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is a polytetrafluoroethylmaterial material.
3. a kind of series feed micro-strip array antenna as claimed in claim 1 is characterized in that described impedance transformer network (2) adopts 1/4 λ impedance matching, and adopts the series feed mode.
4. a kind of series feed micro-strip array antenna as claimed in claim 1 is characterized in that described first distributing point (4), second distributing point (7) adopt coaxial feeding, and characteristic impedance is 50 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201991805U CN201508913U (en) | 2009-10-22 | 2009-10-22 | Series feed micro-strip array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201991805U CN201508913U (en) | 2009-10-22 | 2009-10-22 | Series feed micro-strip array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508913U true CN201508913U (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201991805U Expired - Fee Related CN201508913U (en) | 2009-10-22 | 2009-10-22 | Series feed micro-strip array antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN201508913U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067605A (en) * | 2016-05-20 | 2016-11-02 | 北京华航无线电测量研究所 | A kind of series feed micro-strip array antenna method for designing |
| CN110767982A (en) * | 2018-07-27 | 2020-02-07 | 深圳市超捷通讯有限公司 | Antenna structure and electronic device with same |
| CN111585044A (en) * | 2020-05-14 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Compensation network of 5G antenna feed network |
| CN111697328A (en) * | 2020-07-15 | 2020-09-22 | 森思泰克河北科技有限公司 | Series-fed microstrip antenna |
-
2009
- 2009-10-22 CN CN2009201991805U patent/CN201508913U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067605A (en) * | 2016-05-20 | 2016-11-02 | 北京华航无线电测量研究所 | A kind of series feed micro-strip array antenna method for designing |
| CN106067605B (en) * | 2016-05-20 | 2018-09-21 | 北京华航无线电测量研究所 | A kind of series feed micro-strip array antenna design method |
| CN110767982A (en) * | 2018-07-27 | 2020-02-07 | 深圳市超捷通讯有限公司 | Antenna structure and electronic device with same |
| CN111585044A (en) * | 2020-05-14 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Compensation network of 5G antenna feed network |
| CN111697328A (en) * | 2020-07-15 | 2020-09-22 | 森思泰克河北科技有限公司 | Series-fed microstrip antenna |
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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: 20100616 Termination date: 20101022 |