CN201117804Y - Size reduced low contour back cavity linear polarization antenna - Google Patents
Size reduced low contour back cavity linear polarization antenna Download PDFInfo
- Publication number
- CN201117804Y CN201117804Y CNU2007201916275U CN200720191627U CN201117804Y CN 201117804 Y CN201117804 Y CN 201117804Y CN U2007201916275 U CNU2007201916275 U CN U2007201916275U CN 200720191627 U CN200720191627 U CN 200720191627U CN 201117804 Y CN201117804 Y CN 201117804Y
- Authority
- CN
- China
- Prior art keywords
- wave
- antenna
- guide cavity
- substrate integrated
- metal layer
- 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 - Fee Related
Links
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model relates to a size-reduced low-outline carinal-cavity line polarization antenna. The single radiation unit of the traditional line polarization antenna has low performance and large volume. Two sides of a medium substrate of the utility model are plated with a metal layer, an upper metal layer is etched with a microstrip line that is used for feeding and a co-grounding and co-plane waveguide transmission line, a middle metal strip of the co-plane waveguide transmission line is extent outwards to be a microstrip line. A plurality of metalation through holes that are arranged in the rectangular form are arranged on the upper metal layer, the medium substrate and the lower metal layer to form a cavity body, and the co-plane waveguide transmission line is stretched into the cavity body. The lower metal layer is etched with a long-strip radiation seam with a wide edge that is paralleled to the wide edge of the cavity body and is close to the wide edge of non-feeding end of the cavity body. The antenna of the utility model has low production cost, can realize the seamless integration with the microstrip circuit and improves the integration of the system. Compared with the traditional carinal-cavity antenna that needs the precise mechanical processing, the antenna of the utility model has rapid production speed and low cost.
Description
Technical field
The utility model belongs to microwave technical field, the low profile rear cavity line polarization antenna that relates to a kind of dimension reduction that constitutes based on substrate integrated waveguide technology, can be used as the antenna of radio frequency receiving and transmitting front end, be widely used in wireless communication systems such as mobile communication, satellite communication, radar, be particularly suitable for a little less than the received signal, need the application scenario of high-gain aerial.
Background technology
As the critical component of communication system, antenna is widely used in the radio communication occasion.The quality of antenna performance has directly determined the performance of whole system.High performance antenna not only can significantly improve the performance of system, obtains good reception, can greatly alleviate the index pressure of follow-up radio circuit simultaneously, reduces the cost of system.Especially in application scenarios, space such as radar, satellites, be not only excellent radiance to the demand of antenna, and volume weight is also had strict restriction.Design has the easily conformal high performance antenna of low profile and is even more important under these occasions.
The implementation of traditional wire poliarizing antenna is varied, comprises element antenna, ring Shape antenna, slot antenna, aperture antenna and end-on-fire antenna or the like.Element antenna, ring Shape antenna etc. have making and simply are easy to advantages such as design, but the performance of the single radiating element of this type antenna is lower.Slot antenna comprises microstrip antenna and Waveguide slot antenna etc., and the antenna that wherein little band forms constitutes has the easily conformal advantage of low profile, be most widely used, but the performance of its single radiating element is also lower equally.The Waveguide slot slot antenna is applicable to the array antenna application, and single radiating element volume is little, forms the array sizes reduction, it is narrow that array antenna has main lobe width, directional diagram can figuration, the low good characteristic that waits of cross polarization level, and it is medium to be mainly used in the microwave and millimeter wave radar communications system.But the antenna volume that is based on the conventional metals guide technology is big, needs accurate mechanical processing technique could realize that given performance causes it with high costs, has limited its use on a large scale; The radiance of aperture antenna and end-on-fire antenna is all relatively good, but their volume is all bigger in actual applications, complex structure, and manufacturing cost is high.It is central in order to improve antenna radiation performance that back of the body cavity configuration often is applied to Antenna Design.But traditional back of the body chamber is made of smooth metallic cavity, the big processing cost height of volume.The cavity-backed radiator antenna of low profile all is to adopt the second order mode of resonance of cavity to form radiation at present, therefore still needs at present to study to adopt new construction to realize based on lowest-order mode of resonance low profile back-cavity high-performance linear polarized antenna that constitute, that size is greatly reduced.
Summary of the invention
The purpose of this utility model provides a kind of low profile rear cavity line polarization antenna of the dimension reduction that constitutes based on substrate integrated waveguide technology, and this novel linear polarized antenna radiance is good, and gain is high, volume is little, and is simple in structure, is easy to design, be easy to processing, cost is low.This antenna compare with existing low profile rear cavity line polarization antenna dimension reduction nearly half, manufacturing cost significantly reduces.
The low profile rear cavity line polarization antenna of dimension reduction of the present utility model comprises dielectric substrate, and the two sides of dielectric substrate is coated with metal level, is respectively to go up metal level and lower metal layer, and wherein lower metal layer is as the stratum; Last metal level etching is useful on the microstrip line and the coplanar waveguide transmission line of feed, and coplanar waveguide transmission line is a common ground coplanar waveguide structure, and metal band stretches out in the middle of it, as microstrip line; Run through metal level, dielectric substrate and lower metal layer and have through hole, through-hole wall is coated with metal, forms plated-through hole; A plurality of plated-through hole sequence arrangement are rectangle, form rectangular substrate integrated wave-guide cavity wave, the pitch of holes of the plated-through hole on each limit of substrate integrated wave-guide cavity wave is identical, coplanar waveguide transmission line is stretched in the substrate integrated wave-guide cavity wave by the broadside of substrate integrated wave-guide cavity wave, the central lines of the center line of its metal band and substrate integrated wave-guide cavity wave broadside; Etching has a strip radiating slot in the zone of the corresponding substrate integrated wave-guide cavity wave of lower metal layer, and radiating slot is parallel with the broadside of substrate integrated wave-guide cavity wave, and vertical with the intermetallic metal band of coplanar waveguide transmission line; Radiating slot is that the center is symmetrical arranged with the metal band center line, and radiating slot is arranged near the broadside on substrate integrated wave-guide cavity wave feed end opposite.
The low profile rear cavity line polarization antenna of dimension reduction of the present utility model is to be equivalent to the cavity body structure of traditional closed wire chamber by the manufacturing of employing substrate integrated waveguide technology on common dielectric substrate, thereby reduces the volume of cavity-backed radiator antenna greatly.With traditional cavity-backed radiator antenna need accurate machining different be that this new antenna can adopt common PCB technology to make, cost of manufacture significantly reduces, and can realize seamless integrated with microstrip circuit.Produce radiation by the First-Order Mode resonance that utilizes cavity simultaneously, utilize second order mode resonance to produce radiation with existing low profile back-cavity antenna and nearly compared with the dimension reduction of antenna half.Structurally, substrate is the dielectric substrate with double-sided metallic, to be interval with a series of metal through holes uniformly, forms the rectangle substrate integrated wave-guide cavity wave that is equivalent to the conventional metals cavity on dielectric substrate.Metal level etches the microstrip line that is used for feed on double-sided metallic, by coplanar waveguide structure electromagnetic wave is introduced rectangular substrate integrated wave-guide cavity wave then.In the corresponding substrate integrated wave-guide cavity wave of the lower metal layer zone of double-sided metallic, the strip slit is being arranged near near the etching broadside of non-feed end, can emittance.
Concrete operation principle: electromagnetic wave is introduced in the rectangle substrate integrated wave-guide cavity wave that is made of substrate integrated waveguide technology by coplanar waveguide transmission line by feed microstrip line again, thereby has encouraged the holotype resonance of lowest-order in the cavity.When cavity is in main mould mode of resonance, influencing its field distribution hardly near etched strip slit, cavity wall position.And this slit can cut the electric current of the single flow direction effectively, thereby thereby energy emission can be gone out and form antenna.This moment length by regulating the slit, cavity the length of side operating frequency that just can regulate antenna easily.
Beneficial effect: the low profile rear cavity line polarization antenna of the dimension reduction that constitutes based on substrate integrated waveguide technology has the following advantages:
A. this novel back cavity linear polarization antenna is keeping on the basis of the high radiation character of low profile back-cavity antenna in the past, thereby makes the size of cavity nearly reduce half because utilized the resonance of cavity lowest-order pattern to form radiation.Total comprises that feeding network and cavity can realize on dielectric substrate, make antenna volume greatly reduce, and entire antenna can be seamless integrated with radio frequency receiving and transmitting front end and even the complete plane of whole system, improved the integrated level of system.
B. this novel back cavity linear polarization antenna is simple for structure, and operation principle is simple and clear.In design process, only need to regulate the distance of length, slit center line and cavity broadside wall of radiating slot and the length of side of the rectangle substrate integrated wave-guide cavity wave that constitutes by metal throuth hole and just can obtain needed performance.Structural parameters are few, the time that has shortened design greatly and optimized.
C. this novel back of the body chamber high-gain aerial is made simple and convenient, and total just can realize with common PCB technology.Need accurate machining to compare with traditional cavity-backed radiator antenna, manufacturing speed is fast, and is with low cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a perspective view of the present utility model;
Fig. 3 is the metal-layer structure schematic diagram of going up of the present utility model;
Fig. 4 is a lower metal layer structural representation of the present utility model;
Fig. 5 is the return loss emulation of the utility model one embodiment and the comparison diagram of test result;
Fig. 6 is emulation testing result's the comparison diagram of the gain of the utility model one embodiment;
Fig. 7 is the test result figure of the utility model one embodiment at E surface radiation directional diagram;
Fig. 8 is the test result figure of the utility model one embodiment at H surface radiation directional diagram.
Embodiment
As illustrated in fig. 1 and 2, the low profile rear cavity line polarization antenna of dimension reduction comprises that thickness is 0.5 millimeter Rogers5880 dielectric substrate 1, and the two sides of dielectric substrate 1 is coated with metal level, is respectively to go up metal level 6 and lower metal layer 7, and wherein lower metal layer 7 is as the stratum.As Fig. 3, last metal level 6 etchings are useful on the microstrip line 2 and the coplanar waveguide transmission line 3 (frame of broken lines comprises part) of feed, and coplanar waveguide transmission line 3 is common ground coplanar waveguide structures, and metal band stretches out in the middle of it, as microstrip line 2.The length of microstrip line 2 and width are respectively 4 millimeters and 1.45 millimeters, and the width of two air gaps of coplanar waveguide transmission line 3 is 0.7 millimeter, and length is 1.5 millimeters.Running through metal level 6, dielectric substrate 1 and lower metal layer 7, to have diameter be 1 millimeter through hole, and through-hole wall is coated with metal, forms plated-through hole 4.A plurality of plated-through hole 4 sequence arrangement are that the length of side is the rectangle of 11.9 millimeters and 17.8 millimeters, form rectangular substrate integrated wave-guide cavity wave, and the pitch of holes of the plated-through hole 4 on each limit of substrate integrated wave-guide cavity wave is identical, is 1.5 millimeters.Coplanar waveguide transmission line 3 stretches in the substrate integrated wave-guide cavity wave, the center line of its metal band and the central lines of substrate integrated wave-guide cavity wave.As Fig. 4, etching has length and width to be respectively the strip radiating slot 5 of 13.7 millimeters and 1 millimeter in the zone of lower metal layer 7 corresponding substrate integrated wave-guide cavity waves, the broadside of radiating slot 5 is parallel with the broadside of rectangle substrate integrated wave-guide cavity wave, and both are in the central lines of broadside, and the central point of radiating slot 5 is near 2 millimeters at the center of the non-feed end broadside of the direction of feed end skew substrate integrated wave-guide cavity wave.
The concrete manufacture process of this rectangle substrate integrated waveguide back cavity linear polarization antenna is: the substrate of at first choosing corresponding parameter, metal level etches microstrip line and the coplanar waveguide transmission line that is used for feed on substrate, suitable position etching is used for the strip slit of emittance on the lower metal layer of substrate then, on whole substrate, beat a series of metal through holes with uniform interval in place at last, constitute broadside and slit parallel rectangular substrate integrated wave-guide cavity wave around the slit.Select suitable aperture and pitch of holes, avoid the cavity self-energy outwards to reveal.This novel back cavity linear polarization antenna has kept the radiation characteristic of conventional metals cavity-backed radiator antenna high-gain.Select the length of side of the radiating slot and the rectangle substrate integrated wave-guide cavity wave of suitable size, the operating frequency that can regulate this antenna easily.Entire antenna can be fully seamless integrated with radio frequency receiving and transmitting front end and even whole system fully by common PCB technology realization.
Fig. 5 is the test result of this linear polarized antenna performance to Fig. 8.The emulation of Fig. 5 and test result show this antenna emittance effectively in centre frequency is the working band of 8GHz.The emulation of Fig. 6 and test result show that all this antenna has the gain up to 4.6dBi in working band.No matter this antenna of the directional diagram test result of Fig. 7～8 surface still is that the H mask has good directionality at the E face in working band, the good radiation characteristic of low-cross polarization level etc.
Claims (1)
1, a kind of low profile rear cavity line polarization antenna of dimension reduction comprises dielectric substrate, it is characterized in that: the two sides of dielectric substrate is coated with metal level, is respectively to go up metal level and lower metal layer; Last metal level etching is useful on the microstrip line and the coplanar waveguide transmission line of feed, and coplanar waveguide transmission line is a common ground coplanar waveguide structure, and metal band stretches out in the middle of it, as microstrip line; Run through metal level, dielectric substrate and lower metal layer and have plated-through hole, a plurality of plated-through hole sequence arrangement are rectangle, form rectangular substrate integrated wave-guide cavity wave, the pitch of holes of the plated-through hole on each limit of substrate integrated wave-guide cavity wave is identical, coplanar waveguide transmission line is stretched in the substrate integrated wave-guide cavity wave by the broadside of substrate integrated wave-guide cavity wave, the central lines of the center line of its metal band and substrate integrated wave-guide cavity wave broadside; Etching has a strip radiating slot in the zone of the corresponding substrate integrated wave-guide cavity wave of lower metal layer, and radiating slot is parallel with the broadside of substrate integrated wave-guide cavity wave, and vertical with the intermetallic metal band of coplanar waveguide transmission line; Radiating slot is that the center is symmetrical arranged with the metal band center line, and radiating slot is arranged near the broadside on substrate integrated wave-guide cavity wave feed end opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916275U CN201117804Y (en) | 2007-11-12 | 2007-11-12 | Size reduced low contour back cavity linear polarization antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916275U CN201117804Y (en) | 2007-11-12 | 2007-11-12 | Size reduced low contour back cavity linear polarization antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117804Y true CN201117804Y (en) | 2008-09-17 |
Family
ID=39992388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201916275U Expired - Fee Related CN201117804Y (en) | 2007-11-12 | 2007-11-12 | Size reduced low contour back cavity linear polarization antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117804Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595296A (en) * | 2012-01-31 | 2012-07-18 | 惠州Tcl移动通信有限公司 | Hearing aid compatible device and hearing aid compatible mobile terminal |
| CN103762420A (en) * | 2014-02-25 | 2014-04-30 | 中国工程物理研究院电子工程研究所 | Terahertz wave back cavity type chip-loaded antenna |
| CN107591617A (en) * | 2017-08-29 | 2018-01-16 | 电子科技大学 | A kind of SIW back of the body chamber slot antennas of mixing AMC tessellates structure loading |
| CN109524776A (en) * | 2018-10-17 | 2019-03-26 | 天津大学 | A kind of Wideband high-gain on piece substrate integration wave-guide antenna |
| CN112688081A (en) * | 2020-12-15 | 2021-04-20 | 重庆邮电大学 | Broadband cavity-backed planar slot array antenna based on dielectric integrated waveguide |
-
2007
- 2007-11-12 CN CNU2007201916275U patent/CN201117804Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595296A (en) * | 2012-01-31 | 2012-07-18 | 惠州Tcl移动通信有限公司 | Hearing aid compatible device and hearing aid compatible mobile terminal |
| CN102595296B (en) * | 2012-01-31 | 2016-03-02 | 惠州Tcl移动通信有限公司 | Hearing aids compatible apparatus and hearing aids compatible mobile terminals |
| CN103762420A (en) * | 2014-02-25 | 2014-04-30 | 中国工程物理研究院电子工程研究所 | Terahertz wave back cavity type chip-loaded antenna |
| CN103762420B (en) * | 2014-02-25 | 2016-08-17 | 中国工程物理研究院电子工程研究所 | A kind of THz wave back cavity type sheet carries antenna |
| CN107591617A (en) * | 2017-08-29 | 2018-01-16 | 电子科技大学 | A kind of SIW back of the body chamber slot antennas of mixing AMC tessellates structure loading |
| CN107591617B (en) * | 2017-08-29 | 2019-11-05 | 电子科技大学 | A kind of SIW back chamber slot antenna of mixing AMC tessellate structure load |
| CN109524776A (en) * | 2018-10-17 | 2019-03-26 | 天津大学 | A kind of Wideband high-gain on piece substrate integration wave-guide antenna |
| CN112688081A (en) * | 2020-12-15 | 2021-04-20 | 重庆邮电大学 | Broadband cavity-backed planar slot array antenna based on dielectric integrated waveguide |
| CN112688081B (en) * | 2020-12-15 | 2022-05-10 | 重庆邮电大学 | Broadband cavity-backed planar slot array antenna based on dielectric integrated waveguide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101170214B (en) | Dimension reduction low profile rear cavity line polarization antenna | |
| CN101183742B (en) | Rectangle substrate integrated waveguide back cavity linear polarization antenna | |
| CN101242027B (en) | Polarization antenna for directional coupler feedback low profile back cavity round | |
| CN101170213B (en) | Low profile rear cavity ring gap one-point short circuit round polarization antenna | |
| CN101179150B (en) | Metallized through-hole infinitesimal disturbance based low profile back-cavity circularly polarized antenna | |
| CN101179149B (en) | One point coaxial feed low profile back-cavity circularly polarized antenna | |
| CN101170212A (en) | Common face wave guide single-point feedback rear cavity round polarization antenna | |
| CN201966319U (en) | Wideband low-profile cavity backed integrated antenna | |
| CN109888484B (en) | High-efficiency end-fire antenna based on SSPPs structure | |
| CN201117804Y (en) | Size reduced low contour back cavity linear polarization antenna | |
| CN102142619A (en) | Cavity backed double-slit integrated antenna with increased gain | |
| CN101183743B (en) | Single feedback low profile back cavity dual-frequency bilinear polarization antenna | |
| CN201117819Y (en) | Rectangular base sheet integrated wave-guide back cavity linear polarization antenna | |
| CN201117806Y (en) | Coplanar wave-guide single point power feeding back cavity circular-polarization antenna | |
| CN102142617A (en) | High gain integrated antenna based on high order cavity resonant mode | |
| CN201130710Y (en) | Directional coupler feed low contour back cavity circularly polarized antenna | |
| CN201130711Y (en) | Low contour back cavity circularly polarized antenna based on metallization throughhole infinitesimal disturbance | |
| CN201117805Y (en) | Low contour back cavity annular gap one-point short circuit circular-polarization antenna | |
| CN111916908B (en) | Horizontal omnidirectional frequency scanning antenna based on artificial surface plasmon | |
| CN113270716A (en) | Be applied to novel MIMO millimeter wave circular polarization patch antenna of 5G | |
| CN202134661U (en) | Double seam integration antenna of back chamber of increased gain | |
| CN201966326U (en) | High-gain integrated antenna based on high order cavity resonant mode | |
| CN102142607A (en) | Broadband low-contour cavity-backed integrated antenna | |
| CN201178135Y (en) | Bi-frequency slit antenna of substrate integrated waveguide | |
| CN101227028A (en) | Double frequency slit antenna of substrate integrated waveguide |
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: 20080917 Termination date: 20101112 |