CN202721268U - Substrate integrated waveguide-based slot antenna with frequency adjustable performance - Google Patents
Substrate integrated waveguide-based slot antenna with frequency adjustable performance Download PDFInfo
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- CN202721268U CN202721268U CN 201220375694 CN201220375694U CN202721268U CN 202721268 U CN202721268 U CN 202721268U CN 201220375694 CN201220375694 CN 201220375694 CN 201220375694 U CN201220375694 U CN 201220375694U CN 202721268 U CN202721268 U CN 202721268U
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Abstract
The utility model, which belongs to the antenna technology field, relates to a substrate integrated waveguide-based slot antenna with a frequency adjustable performance. The slot antenna comprises a substrate integrated waveguide; a metal layer (1) of the substrate integrated waveguide is provided with a rectangular window (12); a radiation metal patch (13) that is arranged inside the rectangular window (12) penetrates the substrate integrated waveguide by a high-resistance feeder line (14) and is connected with a bias feed sheetmetal (15); and the radiation metal patch (13) and the high-resistance feeder line (14) are in electrical isolation with the metal layer (1). In addition, fan-shaped micro-strips (16) are connected to two sides of the high-resistance feeder line (14) penetrating the substrate integrated waveguide; and varactors (5) are respectively connected between the two sides of the radiation metal patch (13) and the metal layer (1). According to the utility model, the dual-slot structure is used to replace the single slot structure of the traditional slot antenna, so that the direct current bias can be provided easily; and the metal layer at the back side of a dielectric layer is free of the circuit structure, so that fixing with the support surface can be realized conveniently and thus the stability can be improved. Moreover, the antenna has high efficiency and is suitable for high frequency work; and the performance of the antenna is changed little in an adjustable range.
Description
Technical field
The utility model belongs to frequency adjustable antenna technical field, particularly a kind of substrate integration wave-guide frequency expanding slot antenna.
Background technology
Software radio and its upgrading concept cognitive radio is the hot technology in the field of mobile communication in recent years, can be flexibly management of frequency spectrum resource effectively, greatly improve the availability of frequency spectrum, reduce operating frequency near disturbing mutually between the system.Software radio and cognitive radio require antenna to possess reconfigurability, namely rely on electricity or other motivators, can change operating frequency or the polarization mode of antenna.
Slot antenna can pass through the planar transmission line feeds such as little band, co-planar waveguide, and realizing low cross-section structure, but there are the following problems: 1) the feeder line radiation produces directional diagram and worsens; 2) affected by antenna ground size very strong for antenna pattern; 3) feeder line and radiating element are distributed in the both sides of dielectric substrate, can't be combined with supporting surface to cause stability not high, and applicable situation is limited.Therefore, the slot antenna of feeding substrate integrated waveguide has won extensive concern, can finely address the above problem, and keeps simultaneously the characteristic of low section.
But substrate integration wave-guide is the uniconductor structure, and its metal surface equipotentiality can't realize potential difference.Compare the frequency adjustable antenna that the structure such as little band realizes, very difficult to the direct current biasing of Adjustable Diode (such as PIN pipe, varactor etc.) in the substrate integrated wave guide structure.If: 1) by jumper to the varactor feed, but this moment jumper be near the slit, larger to radiation effect; 2) realize bias voltage by the special feed circuit of another layer, but this layer circuit be covered on the slit, be difficult to use in Antenna Design; 3) at the direct printed feed circuit in substrate integration wave-guide surface, but these circuit can change the electric property of substrate integration wave-guide, cause mis-behave serious.
Therefore, the design for substrate integration wave-guide frequency expanding slot antenna there is no suitable scheme.
Summary of the invention
The purpose of this utility model is for the chip integrated waveguide slot antenna of realizing that frequency is adjustable, to satisfy communication system of new generation to the active demand of antenna frequencies restructural.
To achieve these goals, the technical solution of the utility model is:
A kind of substrate integration wave-guide frequency expanding slot antenna comprises dielectric layer 3, is positioned at the metal level 1 in dielectric layer 3 fronts and is positioned at the metal level 2 at dielectric layer 3 back sides; Link to each other by three row's plated-through holes 4 between metal level 1 and the metal level 2, and consist of substrate integrated wave guide structure with dielectric layer 3; Three rows have in the plated-through holes 4 two rows to be parallel to each other and are positioned at metal level 2 broadside edges, and another ranking is in metal level 2 narrow limit edges and perpendicular to the two row's plated-through holes that are parallel to each other; Be positioned at the position of departing from the substrate integrated wave guide structure center line in edge, metal level 2 narrow limit and have window, do not have plated-through hole in the window;
The position that metal level 1 departs from the substrate integrated wave guide structure center line has rectangular window 12, has radiation metal paster 13 in the rectangular window 12, radiation metal paster 13 links to each other with an end of high resistant feeder line 14, high resistant feeder line 14 is drawn from the window at edge, the narrow limit of substrate integrated wave guide structure, and the other end of high resistant feeder line 14 links to each other with offsetfed sheet metal 15; Radiation metal paster 13 is realized the electricity isolation by rectangular window 12 and metal level 1, and high resistant feeder line 14 is realized the electricity isolation by groove structure and the metal level 1 of both sides, and high resistant feeder line 14 both sides that pass substrate integrated wave guide structure are connected with fan-shaped offset of microstrip 16; Be connected with respectively a variable capacitance diode 5 between the both sides of radiation metal paster 13 and the metal level 1;
The narrow limit that does not have plated-through hole 4 in the substrate integrated wave guide structure is signal input part.
Further, in the position that adds man-hour and determine more accurately variable capacitance diode 5, need the position of cross-over connection variable capacitance diode 5 to be carved with telltale mark 121 in rectangular window 12 both sides.Telltale mark 121 can be the breach marks such as rectangle, triangle.
The utility model is changed into double slit structure (having respectively a seam between metal radiation paster 13 both sides and the metal level 1) with single crack structure of traditional chip integrated waveguide slot antenna, form in the middle of the double slit with respect to substrate integration wave-guide metal level 1 metal radiation paster 13 independently, this moment metal level 1 and metal radiation paster 13 the two can have the direct current pressure drop, be convenient to variable capacitance diode 5 is loaded direct current biasings; The double slit structure departs from the substrate integrated wave guide structure center line, thereby with cutting surfaces electric current emittance, so it exists as irradiation structure, can not affect the performance of substrate integration wave-guide.On the other hand, the double slit structural equivalents on substrate integration wave-guide surface is the shunt-resonant circuit, and behind variable capacitance diode 5 places in circuit in parallel, its capacitance changes with the variation of applying bias, thereby change the resonance frequency of resonant tank, realize that finally the frequency of slot antenna is adjustable.In when design, the length of double slit structure (being the length of rectangular window 12) can be chosen as the casual labourer of antenna and make 1/2nd of wavelength; Double slit structure centre (being the geometric center of rectangular window 12 or radiation metal paster 13) is located can be chosen as the casual labourer of antenna apart from metal level 2 narrow limit edge institute windowing and is made 1/4th of wavelength.
The utility model has adopted high resistant feeder line 14, offsetfed sheet metal 15, fan-shaped offset of microstrip 16 to consist of dc bias circuit, direct current biasing is added on the offsetfed sheet metal 15, high resistant feeder line 14 and fan-shaped offset of microstrip 16 avoid it to enter DC loop in order to suppress radiofrequency signal.The length of the high resistant feeder line 14 between radiation metal paster 13 and the fan-shaped offset of microstrip 16 can be set to 1/4th of the corresponding operation wavelength of center of antenna operating frequency; The path length of fan-shaped offset of microstrip 16 is set to 1/4th of the corresponding operation wavelength of center of antenna operating frequency, and angle is 50 ~ 70 degree.
The utility model has adopted transition line 17, feed line 18 to consist of signal input part, and it is in the nature microstrip line to feeding substrate integrated waveguide.In actual use, can select different feed forms as required, such as co-planar waveguide to feeding substrate integrated waveguide, the coaxial pair feeding substrate integrated waveguide.When the circuit of the utility model antenna and substrate integrated circuit form is integrated, can save this class formation.
The beneficial effects of the utility model:
(1) the utility model adopts the double slit structure to substitute single crack structure of traditional slot antenna, when substrate integration wave-guide frequency adjustable antenna is used, is easy to provide direct current biasing;
(2) metal level at the utility model dielectric layer back side is convenient to fix with supporting surface without any circuit structure, improves stability;
(3) compare the frequency expanding slot antenna of the feeds such as little band, antenna efficiency of the present utility model is higher, is more suitable for high-frequency work, and performance change is little in adjustable extent.
Description of drawings
Fig. 1 is the structure three-dimensional schematic diagram of the substrate integration wave-guide frequency expanding slot antenna that provides of the utility model.
Fig. 2 is the Facad structure schematic diagram of the substrate integration wave-guide frequency expanding slot antenna that provides of the utility model.
Fig. 3 is the Facad structure schematic diagram (having telltale mark 121) of the substrate integration wave-guide frequency expanding slot antenna that provides of the utility model.
Embodiment
As shown in Figure 1 and Figure 2, a kind of substrate integration wave-guide frequency expanding slot antenna comprises dielectric layer 3, is positioned at the metal level 1 in dielectric layer 3 fronts and is positioned at the metal level 2 at dielectric layer 3 back sides; Link to each other by three row's plated-through holes 4 between metal level 1 and the metal level 2, and consist of substrate integrated wave guide structure with dielectric layer 3; Three rows have in the plated-through holes 4 two rows to be parallel to each other and are positioned at metal level 2 broadside edges, and another ranking is in metal level 2 narrow limit edges and perpendicular to the two row's plated-through holes that are parallel to each other; Be positioned at the position of departing from the substrate integrated wave guide structure center line in edge, metal level 2 narrow limit and have window, do not have plated-through hole in the window;
The position that metal level 1 departs from the substrate integrated wave guide structure center line has rectangular window 12, has radiation metal paster 13 in the rectangular window 12, radiation metal paster 13 links to each other with an end of high resistant feeder line 14, high resistant feeder line 14 is drawn from the window at edge, the narrow limit of substrate integrated wave guide structure, and the other end of high resistant feeder line 14 links to each other with offsetfed sheet metal 15; Radiation metal paster 13 is realized the electricity isolation by rectangular window 12 and metal level 1, and high resistant feeder line 14 is realized the electricity isolation by groove structure and the metal level 1 of both sides, and high resistant feeder line 14 both sides that pass substrate integrated wave guide structure are connected with fan-shaped offset of microstrip 16; Be connected with respectively a variable capacitance diode 5 between the both sides of radiation metal paster 13 and the metal level 1;
The narrow limit that does not have plated-through hole 4 in the substrate integrated wave guide structure is signal input part, and signal input part links to each other with feed line 18 by gradual change microstrip line 17, and input signal adopts the co-planar waveguide feed-in.
As an example, substrate integration wave-guide frequency expanding slot antenna is designed, processes, tests.The dielectric substrate dielectric constant of selecting is 3.5, thickness 1.52mm, and loss angle tangent is 0.0018.Test result shows, based on the SWV1405 varactor, and the overlayable 2.3 ~ 2.74GHz frequency range of the adjustable range of butler matrix centre frequency.Under different bias voltages, return loss is-7 ~-15dB, gain 1.6 ~ 3.8dBi, radiation efficiency 49 ~ 67%.
Claims (7)
1. substrate integration wave-guide frequency expanding slot antenna comprises dielectric layer (3), is positioned at the positive metal level (1) of dielectric layer (3) and is positioned at the metal level (2) at dielectric layer (3) back side; Link to each other by three row's plated-through holes (4) between metal level (1) and the metal level (2), and consist of substrate integrated wave guide structure with dielectric layer (3); It is characterized in that having two rows to be parallel to each other among three rows plated-through holes (4) and be positioned at metal level (2) broadside edge, another ranking is in metal level (2) narrow limit edge and perpendicular to the two row's plated-through holes that are parallel to each other; Be positioned at the position of departing from the substrate integrated wave guide structure center line in edge, the narrow limit of metal level (2) and have window, do not have plated-through hole in the window;
The position that metal level (1) departs from the substrate integrated wave guide structure center line has rectangular window (12), has radiation metal paster (13) in the rectangular window (12), radiation metal paster (13) links to each other with an end of high resistant feeder line (14), high resistant feeder line (14) is drawn from the window at edge, the narrow limit of substrate integrated wave guide structure, and the other end of high resistant feeder line (14) links to each other with offsetfed sheet metal (15); Radiation metal paster (13) is realized the electricity isolation by rectangular window (12) and metal level (1), high resistant feeder line (14) is realized the electricity isolation by groove structure and the metal level (1) of both sides, and high resistant feeder line (14) both sides that pass substrate integrated wave guide structure are connected with fan-shaped offset of microstrip (16); Be connected with respectively a variable capacitance diode (5) between the both sides of radiation metal paster (13) and the metal level (1);
The narrow limit that does not have plated-through hole (4) in the substrate integrated wave guide structure is signal input part.
2. substrate integration wave-guide frequency expanding slot antenna according to claim 1 is characterized in that described signal input part links to each other with feed line 18 by gradual change microstrip line 17, and input signal adopts the co-planar waveguide feed-in.
3. substrate integration wave-guide frequency expanding slot antenna according to claim 1 is characterized in that described signal input part links to each other with inner conductor, and the input wire size adopts the coaxial cable feed-in.
4. according to claim 1,2 or 3 described substrate integration wave-guide frequency expanding slot antennas, it is characterized in that, need the position of cross-over connection variable capacitance diode (5) to be carved with telltale mark (121) in rectangular window (12) both sides.
5. substrate integration wave-guide frequency expanding slot antenna according to claim 4 is characterized in that, described telltale mark (121) is rectangle or vee mark.
6. according to claim 1,2 or 3 described substrate integration wave-guide frequency expanding slot antennas, it is characterized in that the length of rectangular window (12) is that the casual labourer of antenna makes 1/2nd of wavelength; The geometric center of rectangular window (12) or radiation metal paster (13) is that the casual labourer of antenna makes 1/4th of wavelength apart from the narrow limit of metal level (2) edge institute windowing.
7. according to claim 1,2 or 3 described substrate integration wave-guide frequency expanding slot antennas, it is characterized in that the length of the high resistant feeder line (14) between radiation metal paster (13) and the fan-shaped offset of microstrip (16) is 1/4th of the corresponding operation wavelength of center of antenna operating frequency; The path length of fan-shaped offset of microstrip (16) is 1/4th of the corresponding operation wavelength of center of antenna operating frequency, and angle is 50 ~ 70 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375694 CN202721268U (en) | 2012-07-31 | 2012-07-31 | Substrate integrated waveguide-based slot antenna with frequency adjustable performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375694 CN202721268U (en) | 2012-07-31 | 2012-07-31 | Substrate integrated waveguide-based slot antenna with frequency adjustable performance |
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| CN202721268U true CN202721268U (en) | 2013-02-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780092A (en) * | 2012-07-31 | 2012-11-14 | 电子科技大学 | Silicon integrated waveguide frequency adjustable slot antenna |
| US9487441B2 (en) | 2011-10-28 | 2016-11-08 | Corning Incorporated | Glass articles with infrared reflectivity and methods for making the same |
| CN106129612A (en) * | 2016-08-10 | 2016-11-16 | 四川中测微格科技有限公司 | A kind of broadband dipole antenna of feeding substrate integrated waveguide |
| CN108432049A (en) * | 2015-06-16 | 2018-08-21 | 阿卜杜拉阿齐兹国王科技城 | Effective planar phased array array antenna component |
| US10116035B2 (en) | 2015-04-30 | 2018-10-30 | Corning Incorporated | Electrically conductive articles with discrete metallic silver layers and methods for making same |
-
2012
- 2012-07-31 CN CN 201220375694 patent/CN202721268U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9487441B2 (en) | 2011-10-28 | 2016-11-08 | Corning Incorporated | Glass articles with infrared reflectivity and methods for making the same |
| US9586861B2 (en) | 2011-10-28 | 2017-03-07 | Corning Incorporated | Glass articles with discrete metallic silver layers and methods for making the same |
| US9975805B2 (en) | 2011-10-28 | 2018-05-22 | Corning Incorporated | Glass articles with infrared reflectivity and methods for making the same |
| US11535555B2 (en) | 2011-10-28 | 2022-12-27 | Corning Incorporated | Glass articles with infrared reflectivity and methods for making the same |
| CN102780092A (en) * | 2012-07-31 | 2012-11-14 | 电子科技大学 | Silicon integrated waveguide frequency adjustable slot antenna |
| US10116035B2 (en) | 2015-04-30 | 2018-10-30 | Corning Incorporated | Electrically conductive articles with discrete metallic silver layers and methods for making same |
| CN108432049A (en) * | 2015-06-16 | 2018-08-21 | 阿卜杜拉阿齐兹国王科技城 | Effective planar phased array array antenna component |
| CN106129612A (en) * | 2016-08-10 | 2016-11-16 | 四川中测微格科技有限公司 | A kind of broadband dipole antenna of feeding substrate integrated waveguide |
| CN106129612B (en) * | 2016-08-10 | 2019-07-30 | 四川中测微格科技有限公司 | A kind of broadband dipole antenna of feeding substrate integrated waveguide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140731 |
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| EXPY | Termination of patent right or utility model |