CN201215831Y - Low loss substrate integrated wave-guide multi-beam antenna - Google Patents
Low loss substrate integrated wave-guide multi-beam antenna Download PDFInfo
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- CN201215831Y CN201215831Y CNU2008200364879U CN200820036487U CN201215831Y CN 201215831 Y CN201215831 Y CN 201215831Y CN U2008200364879 U CNU2008200364879 U CN U2008200364879U CN 200820036487 U CN200820036487 U CN 200820036487U CN 201215831 Y CN201215831 Y CN 201215831Y
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Abstract
The utility model relates to a low-loss substrate integrated waveguide multi-beam antenna, which realizes substrate integrated waveguide similar to a waveguide structure through an upper metal copper-clad surface (1), a lower copper-clad surface (2) and a metallized through hole (4) on a medium substrate (3), a multi-beam antenna is formed, the structure is divided into three parts, the first part is a substrate integrated waveguide rotman lens (53), the second part is a substrate integrated waveguide phase shift network (8), the third part is radiation antenna array (91), wherein the first part and the second part are directly cascaded, and the second part and the third part are directly cascaded. The antenna of the utility model can be applicable to microwave and millimeter wave beam forming networks and multi-beam antenna and cable systems, the substrate integrated waveguide multi-beam antenna which is composed of the utility model can be applicable to microwave and millimeter wave multi-beam systems and intelligent antennae, and the advantages of improving the communication channel quality, lowering the transmitting power and the bit error rate, and lowering the multipath interference can be achieved.
Description
Technical field
Substrate integration wave-guide rood of the present utility model graceful (Rotman) lens go for the Wave-packet shaping network and the multi-beam antenna-feedback system of microwave and millimeter wave, can be applied to microwave and millimeter wave multiple-beam system and smart antenna by its multi-beam antenna of substrate integrated wave-guide that constitutes, can bring such as improving communication channel quality, reduce the transmitting power and the error rate, reduce the advantage that multipath disturbs.
Background technology
Developing rapidly of mobile communication makes traditional multi-access mode, as CDMA, and FDMA, TDMA etc. can not satisfy growing dilatation needs.Multi-beam antenna produces a plurality of fixing parallel wave beams that point to by Wave-packet shaping network, is used for covering whole user area, thereby reaches the purpose of dilatation.The graceful lens of rood promptly are a kind of multi-beam shaping networks, and it has advantages such as compact conformation, bandwidth of operation broad, thereby obtain extensive use.Along with increasing of operating frequency, especially enter Ka frequency range even millimeter wave frequency band, huge loss makes that the graceful lens of rood that are made of conventional planar circuit such as microstrip line etc. can't operate as normal, and can't realize because volume is too small.If adopt metal waveguide to realize the graceful lens of rood, though its excellent performance, the problem that can produce processing difficulties, cost is higher, weight is big etc. is difficult to overcome.Novel substrate integrated waveguide technology had both had the advantage such as easy of integration, easy to make of planar circuit, had high Q value, the low-loss good characteristic approximate with metal waveguide again, was suitable for the design of microwave and millimeter wave multi-beam antenna.
Summary of the invention
Technical problem: the purpose of this utility model is to propose a kind of low-loss substrate integration wave-guide multiple-beam antenna, realizes the beam scanning of Ka frequency range even millimeter wave frequency band, and it is lower to have a loss, volume is less, advantages such as cost is low, produces in enormous quantities easily, and easy and active circuit is integrated.
Technical scheme: low-loss substrate integration wave-guide multiple-beam antenna of the present utility model applies the substrate integration wave-guide that copper face, the deposited copper face of lower metal and plated-through hole realize being similar to waveguiding structure by the upper strata metal of dielectric substrate, and formation multi-beam antenna, its structure is divided into three parts: first is the graceful lens of substrate integration wave-guide rood, second portion is the substrate integration wave-guide phase-shift network, third part is the radiating antenna battle array, the wherein direct cascade of first and second portion, the direct cascade of second portion and third part.
The graceful lens of substrate integration wave-guide rood are arranged in by plated-through hole has lens input arc and lens output arc shape constitutes, distributing on the limit wall of its lens input arc the input port and the coupling mouthful, the inner delivery outlet that distributing on the limit wall of lens output arc links to each other with the substrate integration wave-guide phase-shift network.
The substrate integration wave-guide phase-shift network forms the substrate integration wave-guide with different in width by the position adjustments of plated-through hole, and its internal electromagnetic velocity of wave propagation of wide more substrate integration wave-guide is slow more, thereby realizes required phase-shift phase.
The radiating antenna battle array is formed by 9 that are arranged side by side identical 4 seam slot array antenna group battle arrays, wherein each slot array antenna is made of the substrate integration wave-guide that plated-through hole forms, one terminal shortcircuit, the upper strata metal in substrate integration wave-guide apply on the copper face and the both sides that are positioned at center line are respectively equipped with left slit, right slit on the row metal surface.
Owing in substrate integration wave-guide, do not support the propagation of TEM mould, so adopted the TE that is different from traditional incentive mode among the design
10Mould can make that like this bandwidth of operation of the graceful lens of rood reduces slightly.But owing to adopted substrate integrated waveguide technology, the defective when having overcome in the past graceful lens of rood based on metal waveguide or planar circuit form and working in Ka frequency range and millimeter wave frequency band has good performance.
Beneficial effect:
1 :) make the graceful lens of rood when the form with planar circuit works in Ka frequency range and millimeter wave frequency band, have higher gain, Q value and than low-loss.Compare with the stereochemical structure of metal waveguide simultaneously, volume is little, in light weight, handling ease.
2 :) the graceful lens of substrate integration wave-guide rood link to each other with the substrate integration wave-guide antenna array and form multi-beam antenna, and are simple in structure, compact, integrated.
3 :) this multi-beam antenna is made on the dielectric substrate, with the integrated convenience of active circuit.
4 :) this multi-beam antenna can be little with radian curved surface (as aircraft aerofoil surface etc.) directly conformal, do not need other design, have than high practicability.
5 :) each several part of whole multi-beam antenna becomes one, and all utilizes common PCB technology to make, and cost is low, precision is high, good reproducibility, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 is a low-loss substrate integration wave-guide multiple-beam antenna structure chart.
Have among the above figure: the upper strata metal applies copper face 1, lower metal applies copper face 2, dielectric substrate 3, plated-through hole 4, the graceful lens input of rood arc 51, the graceful lens output of rood arc 52, the graceful lens 53 of substrate integration wave-guide rood, inner delivery outlet 54, input port 6 (comprising input port 61～67), coupling mouth 7, substrate integration wave-guide phase-shift network 8, radiating antenna battle array 91, chip integrated waveguide slot array antenna 92, left slit 93 on the metal surface, right slit 94 on the metal surface.
Embodiment
The graceful lens of rood, phase-shift network link to each other with antenna array, can form multi-beam antenna.The graceful lens of rood among the present invention, realize by the substrate integration wave-guide that is similar to waveguiding structure that deposited copper face of the metal on dielectric layer two sides and plated-through hole are formed, it is as Wave-packet shaping network, with the cascade of substrate integration wave-guide phase-shift network, by realizing that from different input ports feed many group phase differences distribute, with the antenna array cascade of forming by the chip integrated waveguide slot array antenna, form multi-beam antenna again.Phase-shift network among the present invention is to utilize the substrate integration wave-guide of different in width to realize required phase-shift phase.Antenna array among the present invention is made up of 9 that are arranged side by side 4 identical seam slot array antennas, and each slot array antenna forms substrate integration wave-guide by plated-through hole and constitutes; One terminal shortcircuit, on the metal level upper surface in substrate integration wave-guide and the both sides that are positioned at center line are respectively equipped with left slit, the right slit on the row metal surface.
Upper strata metal by dielectric substrate 3 applies the substrate integration wave-guide that copper face 1, the deposited copper face 2 of lower metal and plated-through hole 4 realize being similar to waveguiding structure, and formation multi-beam antenna, its structure is divided into three parts: first is the graceful lens 53 of substrate integration wave-guide rood, second portion is a substrate integration wave-guide phase-shift network 8, third part is a radiating antenna battle array 91, the wherein direct cascade of first and second portion, the direct cascade of second portion and third part.The graceful lens 53 of substrate integration wave-guide rood are arranged in by plated-through hole 4 has lens input arc 51 and lens output arc 52 shapes constitute, input port 6 and the coupling of distributing on the limit wall of its lens input arc 51 mouthfuls 7, the inner delivery outlet 54 that distributing on the limit wall of lens output arc 52 links to each other with substrate integration wave-guide phase-shift network 8.Substrate integration wave-guide phase-shift network 8 forms the substrate integration wave-guide with different in width by the position adjustments of plated-through hole 4, and its internal electromagnetic velocity of wave propagation of wide more substrate integration wave-guide is slow more, thereby realizes required phase-shift phase.Radiating antenna battle array 91 is formed by 92 groups of battle arrays of 9 that are arranged side by side identical 4 seam slot array antennas, wherein each slot array antenna 92 is made of the substrate integration wave-guide that plated-through hole 4 forms, one terminal shortcircuit, the upper strata metal in substrate integration wave-guide apply on the copper face 1 and the both sides that are positioned at center line are respectively equipped with left slit 93, right slit 94 on the row metal surface.
This multi-beam antenna is a planar circuit structure, and it is made of dielectric substrate upper and lower surface metal level and plated-through hole fully.Its primary structure can be divided into three parts: the graceful lens of substrate integration wave-guide rood, substrate integration wave-guide phase-shift network and substrate integration wave-guide antenna array.Wherein, the graceful lens of rood are as Wave-packet shaping network, though adopt the form of substrate integration wave-guide to realize that its configuration design still can be carried out with reference to the design formula of the graceful lens of common rood; Chip integrated waveguide slot array antenna group battle array is as the radiating antenna battle array; The substrate integration wave-guide phase-shift network connects said two devices, and satisfies the phase place demand of beam scanning.By different input ports is encouraged, this multi-beam antenna can produce different beam positions.In order to reduce minor level, on the wall of the limit of non-input and output, realize the coupling mouth, and connect 50 ohm build-out resistor.
The utility model is at the multi-beam antenna of substrate integrated wave-guide of realizing at the about 28.5GHz of centre frequency place based on the graceful lens principle of rood, and tests its overall performance in the Ka frequency range.Substrate is selected Rogers Duroid 5880 for use, and its dielectric constant is 2.2, thickness 0.508mm.The diameter of substrate integration wave-guide plated-through hole is 0.4mm, and the spacing between the through hole is 0.8mm.This multi-beam antenna has seven input ports 6 (comprising input port 61～67), 94 seams of cascade chip integrated waveguide slot array antenna.Four coupling mouths all connect 50 ohm of build-out resistors.
From input port 61～67 excitations, producible seven wave beams of antenna have 22 ° respectively when recording 28.5 GHz in the darkroom respectively, 15 °, 15 °, 14 °, 15 °, the 3dB lobe width of 15 ° and 22 °, and its sensing is respectively-41 ° ,-28 °,-14 °, 0 °, 14 °, 28 ° and 41 °.The gain of seven wave beams is respectively 14.3dBi, 17.5dBi, 18.3dBi, 19dBi, 18.3dBi, 17.5dBi, and 14.3dBi.
This multi-beam antenna is directly fixed on the little curved surface of radian, can forms conformal antenna.When 28.5GHz, producible seven wave beams of antenna have 22 ° respectively, and 18 °, 18 °, 16 °, 18 °, the 3dB lobe width of 18 ° and 22 °, and its sensing is respectively-45 °, and-30 ° ,-15 °, 0 °, 15 °, 30 ° and 45 °.The gain of seven wave beams is respectively 15.5dBi, 17dBi, 17.5dBi, 18dBi, 17.5dBi, 17dBi, and 15.5dBi.Multi-beam antenna after conformal is compared with planar structure, gain slightly descends, lobe slightly broadening, minor level rise slightly, the wave beam coverage rate increases to some extent, can not influence its use.
Claims (3)
1. low-loss substrate integration wave-guide multiple-beam antenna, it is characterized in that: the upper strata metal by dielectric substrate (3) applies copper face (1), lower metal applies the substrate integration wave-guide that copper face (2) and plated-through hole (4) realize being similar to waveguiding structure, and formation multi-beam antenna, its structure is divided into three parts: first is the graceful lens of substrate integration wave-guide rood (53), second portion is substrate integration wave-guide phase-shift network (8), third part is radiating antenna battle array (91), the wherein direct cascade of first and second portion, the direct cascade of second portion and third part.
2. low-loss substrate integration wave-guide multiple-beam antenna according to claim 1, it is characterized by: the graceful lens of substrate integration wave-guide rood (53) are arranged in by plated-through hole (4) has lens input arc (51) and lens output arc (52) shape constitutes, distributing on the limit wall of its lens input arc (51) input port (6) and coupling mouthful (7), the inner delivery outlet (54) that distributing on the limit wall of lens output arc (52) links to each other with substrate integration wave-guide phase-shift network (8).
3. low-loss substrate integration wave-guide multiple-beam antenna according to claim 1, it is characterized by: radiating antenna battle array (91) is formed by 9 that are arranged side by side identical 4 seam slot array antenna (92) group battle arrays, wherein each slot array antenna (92) is made of the substrate integration wave-guide that plated-through hole (4) forms, one terminal shortcircuit, the upper strata metal in substrate integration wave-guide apply that copper face (1) is gone up and the both sides that are positioned at center line are respectively equipped with left slit (93), right slit (94) on the row metal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200364879U CN201215831Y (en) | 2008-05-27 | 2008-05-27 | Low loss substrate integrated wave-guide multi-beam antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200364879U CN201215831Y (en) | 2008-05-27 | 2008-05-27 | Low loss substrate integrated wave-guide multi-beam antenna |
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| CN201215831Y true CN201215831Y (en) | 2009-04-01 |
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| CNU2008200364879U Expired - Lifetime CN201215831Y (en) | 2008-05-27 | 2008-05-27 | Low loss substrate integrated wave-guide multi-beam antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257748A (en) * | 2016-08-31 | 2016-12-28 | 广东通宇通讯股份有限公司 | A kind of multiple-beam system |
| CN113447894A (en) * | 2021-06-24 | 2021-09-28 | 中国人民解放军国防科技大学 | Rotman lens based electromagnetic pseudoform load |
-
2008
- 2008-05-27 CN CNU2008200364879U patent/CN201215831Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257748A (en) * | 2016-08-31 | 2016-12-28 | 广东通宇通讯股份有限公司 | A kind of multiple-beam system |
| CN113447894A (en) * | 2021-06-24 | 2021-09-28 | 中国人民解放军国防科技大学 | Rotman lens based electromagnetic pseudoform load |
| CN113447894B (en) * | 2021-06-24 | 2022-09-20 | 中国人民解放军国防科技大学 | Rotman lens based electromagnetic pseudoform load |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090401 |