CN100492761C - Dielectric substrate integrated single pulse antenna - Google Patents
Dielectric substrate integrated single pulse antenna Download PDFInfo
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- CN100492761C CN100492761C CNB2005100404203A CN200510040420A CN100492761C CN 100492761 C CN100492761 C CN 100492761C CN B2005100404203 A CNB2005100404203 A CN B2005100404203A CN 200510040420 A CN200510040420 A CN 200510040420A CN 100492761 C CN100492761 C CN 100492761C
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- dielectric substrate
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- single pulse
- power divider
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Abstract
This invention discloses a dielectric substrate integrated single pulse antenna including a dielectric substrate board set with metallic foils at the positive and negative sides, a slit array, a microstrip power divider and a combiner are etched on one side of the foil, the slit array unit is connected with one end of the microstrip power divider, the other end of which is connected with the combiner, interconnected metallized through holes are set on the substrate board and the foil arrayed in U shape enclosing the slit array.
Description
Technical field
The present invention relates to a kind of antenna that can in the antenna of communication system and power feeding module, use, relate in particular to a kind of dielectric substrate integrated single pulse antenna.
Background technology
The implementation method of traditional monopulse antenna is to use two groups of interlaced metal waveguide gap arrays, and one group with the excitation of even mould, and another group encourages with strange mould.The amplitude distribution of these two groups of waveguide gap arrays is identical, and they are identical for the contribution of far field scattered field separately.Because these two groups excitations are mutually orthogonal, so the single pulse gain that they produced is unaffected, keep higher level.And because the slot arrangement of two group patterns is basic identical, this just makes that velocity of wave propagation and slit spacing in two groups of waveguides are basic identical, thereby obtains essentially identical and poor directional diagram when frequency change.Just can detect the direction at reflecting object place by what detect to obtain in real time with difference beam, so this antenna is widely used in radar system and global position system.Yet the used metal waveguide volume of traditional monopulse antenna is big, weight is very heavy, move difficulty; Its material cost is higher, processing cost is expensive, and because it moves the increase that difficulty has caused relevant machine cost; More inconvenient is that the accuracy of manufacture of metal waveguide can't guarantee that the finished product antenna is working properly, also needs an adjustment process with round-off error like this after machining, and has just caused the difficulty of producing in batches.These defectives make this type of antenna cost very expensive.
Summary of the invention
The invention provides and a kind ofly be easy to produce, especially be easy to produce in batches and accuracy of manufacture height, and can improve the dielectric substrate integrated single pulse antenna of antenna performance, the present invention can find out reflecting object place direction in real time.
The present invention adopts following technical scheme:
A kind of radio communication that is used for, radar, the dielectric substrate integrated single pulse antenna of electronic equipment such as electronic navigation and electronic countermeasures, comprise the dielectric substrate plate, tow sides at the dielectric substrate plate are equipped with metal forming, be etched with gap array on Yi Mian the metal forming therein, microstrip power divider and combiner, slit array unit is connected with an end of microstrip power divider, the other end of microstrip power divider connects and is connected with combiner, at the dielectric substrate plate with metal forming is provided with the intercommunication through hole and this through hole is a plated-through hole, plated-through hole is " U " shape to be arranged, and the plated-through hole that is the arrangement of " U " shape surrounds slit array unit in it.
Compared with prior art, the present invention has following advantage:
The present invention has formed entire antenna and feed system on a dielectric substrate.At first, form a plurality of parallel dielectric substrate integrated waveguides by beat many row's metal throuth holes on dielectric substrate, this waveguide has transmission characteristic and the field distribution similar with the rectangular metal waveguide when working in main mould state.Adjacent through-hole spacing and distance between row and row all require to determine according to reality.Etch gap array then on the surface metal-layer of dielectric substrate, the length in each slit and position can be by accurately calculate determining, make it satisfy the active admittance condition of resonance and are arranged on the crest of short circuited waveguide standing wave.The waveguide gap array of Xing Chenging is totally integrated on the dielectric substrate like this, and ripe processing technologys such as PCB, LTCC have guaranteed precision and the reliability made.The feeding network that utilizes circuited microstrip loop electric bridge and microstrip power divider to form at last connects by low-loss little band-dielectric substrate integrated waveguide again, in power feed-in dielectric substrate integrated waveguide, obtains and difference beam.The present invention is integrated into feeding network and waveguide gap array on the same dielectric substrate.The present invention has following concrete advantage:
1) single pulse gain is higher, and angle sensitivity is higher, makes it can satisfy the needs of harsh conditions; Directional diagram that can figuration makes this antenna can be widely used in various radars and global position system.
2) volume little, in light weight, be easy to integrated, processing cost is low.This dielectric substrate integrated single pulse antenna is realized entire antenna and feed system fully on a dielectric substrate.Compare with traditional metal waveguide slot array antenna, its volume and weight is all much smaller.And, its processing cost is reduced greatly owing to can utilize ripe technologies such as PCB, LTCC processing.
3) accuracy of manufacture height can be produced in batches.The precision of manufacturing process such as PCB will be better than the making and the grooving processes of metal waveguide greatly.This has just guaranteed that the antenna that at every turn processes can both adhere to specification, and does not need the process of round-off error.Provide possibility for large-scale mass production like this.
Description of drawings
Fig. 1 is the structural front view of the embodiment of the invention.
Fig. 2 is the structure vertical view of the embodiment of the invention.
Fig. 3 is the structure rearview of the embodiment of the invention.
Fig. 4 is a plated-through hole structural representation of the present invention.
Fig. 5 is a combiner structure cutaway view of the present invention.
Fig. 6 is calculating and the test result comparison diagram of the present invention at the magnetic field of 25 port feeds face normalization antenna pattern.
Fig. 7 is calculating and the test result comparison diagram of the present invention at the electric field face normalization antenna pattern of 26 port feeds.
Embodiment
A kind of radio communication that is used for, radar, the dielectric substrate integrated single pulse antenna of electronic equipment such as electronic navigation and electronic countermeasures, it is characterized in that comprising dielectric substrate plate 1, wherein the back side of dielectric substrate plate 1 is provided with complete metal forming 3, be etched with gap array 2 on the positive metal forming, microstrip power divider 4 and combiner 5, gap array 2 is connected with an end of microstrip power divider 4, the other end of microstrip power divider 4 is connected with combiner 5, in dielectric substrate plate 1, be provided with intercommunication through hole 6 and this through hole 6 and be plated-through hole, plated-through hole is " U " shape to be arranged, and the plated-through hole that is the arrangement of " U " shape surrounds slit array unit in it.
Embodiment 2
The present invention utilize circuited microstrip loop 3dB electric bridge realize monopulse antenna required and difference beam.Make 27 ports among Fig. 5 be connected reception antenna with 28 ports, the signal that receives forms and wave beam in the stack of 25 ports, subtracts each other the formation difference beam at 26 ports.Circuited microstrip loop electric bridge and chip integrated waveguide slot array antenna form whole antenna-feedback system together, and can be integrated on the PCB substrate and realize.The operating frequency of the design of monopulse antenna is at X-band, centre frequency 10GHz.Adopt DIELECTRIC CONSTANT
r=2.4 dielectric substrate, the thickness of substrate are 1.5mm, dielectric loss angle tangent tan δ=0.002 of substrate.The width that arm is drawn in order is W
1=2.4mm then draws the characteristic impedance Z of arm
c=73.94 Ω.The characteristic impedance of endless belt is to draw arm
Doubly, be 104.57 Ω.Can further obtain the width W of endless belt thus
2=1.19mm.We know that the total length of little charged bridged ring band is 540 degree, and the total length that can obtain endless belt according to the conditions such as characteristic impedance of endless belt is 32.38mm.The radius of hence one can see that endless belt equals 5.15mm, and wherein internal diameter is 4.56mm, and external diameter is 5.75mm.Article four, the interval of drawing between the arm is respectively 90 degree, 90 degree, 90 degree and 270 degree.
What link to each other with the circuited microstrip loop electric bridge is one 4 row 8 row constant amplitude distribution chip integrated waveguide slot arrays.The width a=12.46mm of substrate integration wave-guide, substrate thickness b=1.5mm, the width in all slits is 0.2mm.The length in each slit and can see the following form with respect to the displacement of waveguide core line:
| Gap waveguide centre-to-centre spacing x (mm) | First row | Secondary series | The 3rd row | The 4th row | The 5th row | The 6th row | The 7th row | The 8th row |
| First row | 0.21 | -0.24 | 0.22 | -0.24 | 0.23 | -0.23 | 0.24 | -0.21 |
| Second row | 0.19 | -0.21 | 0.22 | -0.21 | 0.21 | -0.21 | 0.21 | -0.19 |
| The third line | 0.19 | -0.21 | 0.21 | -0.21 | 0.21 | -0.22 | 0.21 | -0.19 |
| Fourth line | 0.21 | -0.24 | 0.23 | -0.23 | 0.23 | -0.22 | 0.24 | -0.21 |
| Gap length l (mm) | First row | Secondary series | The 3rd row | The 4th row | The 5th row | The 6th row | The 7th row | The 8th row |
| First row | 12.24 | 12.26 | 12.22 | 12.24 | 12.23 | 12.24 | 12.25 | 12.25 |
| Second row | 12.31 | 12.31 | 12.31 | 12.30 | 12.32 | 12.29 | 12.32 | 12.30 |
| The third line | 12.30 | 12.33 | 12.29 | 12.32 | 12.30 | 12.31 | 12.31 | 12.31 |
| Fourth line | 12.25 | 12.25 | 12.24 | 12.23 | 12.24 | 12.22 | 12.26 | 12.24 |
The course of work of the present invention is: the power at first gap array that etches of the metal surface by substrate enters substrate integration wave-guide, passing through little band-dielectric substrate integrated waveguide connection again enters each microstrip branch, synthesizes two paths of signals by microstrip power divider then.This two paths of signals produces under the effect of circuited microstrip loop electric bridge and difference beam is received signal.Wherein the different of the gap length of substrate integration wave-guide and position will be given different shapes to the directional diagram that gives off.Each slit all must operate under the condition of resonance, makes antenna that less insertion loss be arranged.The course of work of transmitting antenna in contrast.
Claims (1)
1, a kind of radio communication that is used for, radar, the dielectric substrate integrated single pulse antenna of electronic navigation or electronic countermeasures electronic equipment, it is characterized in that comprising dielectric substrate plate (1), wherein the back side of dielectric substrate plate (1) is provided with complete metal forming (3), be etched with gap array (2) on the positive metal forming, microstrip power divider (4) and combiner (5), gap array (2) is connected with an end of microstrip power divider (4), the other end of microstrip power divider (4) is connected with combiner (5), at dielectric substrate plate (1) with metal forming (3) is provided with intercommunication through hole (6) and this through hole (6) is a plated-through hole, plated-through hole is " U " shape to be arranged, and the plated-through hole that is the arrangement of " U " shape surrounds gap array (2) in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100404203A CN100492761C (en) | 2005-06-08 | 2005-06-08 | Dielectric substrate integrated single pulse antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100404203A CN100492761C (en) | 2005-06-08 | 2005-06-08 | Dielectric substrate integrated single pulse antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719662A CN1719662A (en) | 2006-01-11 |
| CN100492761C true CN100492761C (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100404203A Expired - Fee Related CN100492761C (en) | 2005-06-08 | 2005-06-08 | Dielectric substrate integrated single pulse antenna |
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| CN (1) | CN100492761C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937316B (en) * | 2006-10-20 | 2011-02-09 | 东南大学 | Single-pulse chip integrated waveguide slot array antenna |
| US8325092B2 (en) * | 2010-07-22 | 2012-12-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Microwave antenna |
| CN102222815B (en) * | 2011-03-25 | 2013-08-21 | 中国电子科技集团公司第五十四研究所 | Spiral array measurement and control antenna |
| RU2583334C2 (en) * | 2014-09-16 | 2016-05-10 | Акционерное общество "Научно-исследовательский институт электромеханики" (АО "НИИЭМ") | Method of creating microstrip antennae of metre range and device therefor |
| CN107565227A (en) * | 2017-07-27 | 2018-01-09 | 中国船舶重工集团公司第七二四研究所 | A kind of low sidelobe antenna air strip line and poor power division network |
| CN110911811B (en) * | 2019-10-19 | 2022-02-22 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Dual-polarized array antenna capable of being realized by single dielectric plate |
| CN111969335B (en) * | 2020-08-16 | 2021-09-28 | 西安电子科技大学 | Conformal dual-polarized two-dimensional single-pulse end-fire array antenna |
| CN114709621B (en) * | 2022-03-07 | 2023-05-23 | 南京航空航天大学 | Single-layer substrate integrated waveguide monopulse antenna |
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2005
- 2005-06-08 CN CNB2005100404203A patent/CN100492761C/en not_active Expired - Fee Related
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| CN1719662A (en) | 2006-01-11 |
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