CN201229981Y - Multiple mode beam forming network for millimeter wave frequency band - Google Patents
Multiple mode beam forming network for millimeter wave frequency band Download PDFInfo
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- CN201229981Y CN201229981Y CNU2008200406744U CN200820040674U CN201229981Y CN 201229981 Y CN201229981 Y CN 201229981Y CN U2008200406744 U CNU2008200406744 U CN U2008200406744U CN 200820040674 U CN200820040674 U CN 200820040674U CN 201229981 Y CN201229981 Y CN 201229981Y
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Abstract
The utility model relates to a millimeter wave band multi-mode beam shaping network applicable to microwave millimeter wave multibeam antenna-feed systems and intelligent antenna systems. The network has a plane circuit structure; an upper-layer copper clad face (1) and a lower-layer copper clad face (2) are respectively located on both sides of the medium substrate (3); a metalized through hole (4) runs through a medium substrate (3) and is connected with the upper-layer copper clad face (1) and the lower-layer copper clad face (2) to form a multi-mode substrate waveguide (5) and a substrate integrated waveguide phase-shifting network (6); the multi-mode substrate waveguide (5) and the substrate integrated waveguide phase-shifting network (6) are connected directly; the input end (51) is located on one side of the multi-mode substrate integrated waveguide (5), and an inner output port (52) is located on the other side of the multi-mode substrate integrated waveguide (5) and is connected with the inner side of the substrate integrated waveguide phase-shifting network (6); and the outer side of the substrate integrated waveguide phase-shifting network (6) is connected with an external output port (7).
Description
Technical field
Millimeter wave frequency band multimode Wave-packet shaping network of the present utility model is applicable to microwave and millimeter wave multi-beam antenna-feedback system and antenna system.
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.Wave-packet shaping network generally can be divided into two big classes: circuit class (being network class again) and quasi-optical lens class.Wherein, the circuit class is to constitute by transmission line connection power splitter and coupler.Producing the required phase shift of beam scanning can obtain by not isometric transmission line or special phase shifter, and the distribution of bore face amplitude is to be controlled by the merit branch rate of power splitter.Up to the present, two kinds of common circuit class Wave-packet shaping networks being arranged, is respectively Butler matrix and Blass matrix.The Butler matrix is present the most widely used circuit class Wave-packet shaping network.In general, compare with quasi-optical lens class, circuit class Wave-packet shaping network has more performance, but also has some shortcomings.Show as mainly that volume is huger, structure is complicated, when input branch road quantity more all the more so.At millimeter wave and submillimeter wave wave band,, will run into very big difficulty on the structural manufacturing process in single-mode system if contract than making the matrix form Wave-packet shaping network according to wavelength.Simultaneously, the complexity that mismachining tolerance also can limiting structure.In order to address these problems, we propose a kind of novel multimode Wave-packet shaping network, can well solve the problem that the traditional circuit class formation exists.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of millimeter wave frequency band multimode Wave-packet shaping network, realize the design of Ka frequency range and millimeter wave frequency band multimode Wave-packet shaping network with substrate integration wave-guide, and make it to have and the similar performance of classical matrix formula Wave-packet shaping network (as the Butler matrix), and volume compact (only be original half), cost of manufacture is low, produce in enormous quantities easily, easily and active circuit integrated.
Technical scheme: millimeter wave frequency band multimode Wave-packet shaping network of the present utility model comprises that the upper strata metal applies copper face, lower metal applies copper face, dielectric substrate, plated-through hole, multi-mode substrate integration waveguide, input port, interior output port, substrate integration wave-guide phase-shift network, outer delivery outlet; This Wave-packet shaping network is a planar circuit structure; the upper strata metal applies copper face; lower metal applies the both sides that copper face lays respectively at dielectric substrate; plated-through hole passes dielectric substrate and the upper strata metal applies copper face; lower metal applies the copper face formation multi-mode substrate integration waveguide that is connected; the substrate integration wave-guide phase-shift network; multi-mode substrate integration waveguide; the two directly is connected the substrate integration wave-guide phase-shift network; input port is positioned at a side of multi-mode substrate integration waveguide; interior output port is positioned at the opposite side of multi-mode substrate integration waveguide and joins with the inboard of substrate integration wave-guide phase-shift network, the outer delivery outlet of the outer side joint of 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.This Wave-packet shaping network has 4 input ports and 4 output ports, can motivate the some groups of outputs with fixed skew and equal amplitude at delivery outlet respectively.
This Wave-packet shaping network has 4 input ports and 4 output ports.According to waveguide theory, can transmit the electromagnetic wave of different mode (as TE in guided wave structure formed at same section
10, TE
20...), and the transmission course of each pattern is relatively independent, is independent of each other.Utilize this principle,, the transmission coefficient of different transmission mode is regulated, finally produce the different phase differences and the output of constant amplitude at delivery outlet by the collision matrix analysis of network from different input port excitations.Simultaneously, adopt substrate integration wave-guide to realize the design of physical circuit, obtain better performance at Ka wave band and millimeter wave band.The Wave-packet shaping network that finally obtains is compared with traditional B utler matrix, and performance is approaching, and area only is original half.
Beneficial effect: the utlity model has following advantage:
1 :) when working in Ka frequency range and millimeter wave frequency band, have higher Q value and than low-loss with the form of planar circuit.Compare with the stereochemical structure of metal waveguide simultaneously, volume is little, in light weight, handling ease.
2 :) this Wave-packet shaping network compact conformation, only be half of traditional B utler matrix circuit area, but performance classes is seemingly with it.
3 :) this Wave-packet shaping network radiation efficiency is higher, is 1.28 times of traditional B utler matrix.
4 :) this multi-beam antenna can be directly conformal with the little curved surface of radian, do not need other design, have than high practicability.
5 :) be made on the dielectric substrate by common PCB technology, with the integrated convenience of active circuit, cost is low, precision is high, good reproducibility, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of millimeter wave frequency band multimode Wave-packet shaping network of the present utility model,
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, multi-mode substrate integration waveguide 5, input port 51, interior output port 52, substrate integration wave-guide phase-shift network 6, outer delivery outlet 7.
Embodiment
Millimeter wave frequency band multimode Wave-packet shaping network of the present utility model comprises that the upper strata metal applies copper face 1, lower metal applies copper face 2, dielectric substrate 3, plated-through hole 4, multi-mode substrate integration waveguide 5, input port 51, interior output port 52, substrate integration wave-guide phase-shift network 6, outer delivery outlet 7; This Wave-packet shaping network is a planar circuit structure; the upper strata metal applies copper face 1; lower metal applies the upper and lower surface that copper face 2 lays respectively at dielectric substrate 3; plated-through hole 4 passes dielectric substrate 3 and applies copper face 1 with the upper strata metal; the deposited copper face 2 of lower metal is connected and forms multi-mode substrate integration waveguide 5; substrate integration wave-guide phase-shift network 6; multi-mode substrate integration waveguide 5 directly is connected with substrate integration wave-guide phase-shift network 6; input port 51 is positioned at a side of multi-mode substrate integration waveguide 5; interior output port 52 is positioned at the opposite side of multi-mode substrate integration waveguide 5 and joins with the inboard of substrate integration wave-guide phase-shift network 6, the outer delivery outlet 7 of the outer side joint of substrate integration wave-guide phase-shift network 6.
This Wave-packet shaping network has 4 input ports and 4 output ports, from different input port feeds, can motivate the some groups of outputs with fixed skew and equal amplitude at delivery outlet respectively.
Realize multi-mode substrate integration waveguide beam shaping network at centre frequency 29GHz place, and test its overall performance.Substrate is selected Rogers Duroid 5880 for use, and its dielectric constant is 2.2, thickness 0.508mm.This Wave-packet shaping network has 4 input ports and 4 output ports.
The scope of test is that 27GHz is to 31GHz.During respectively from the excitation of 4 input ports, at centre frequency 29GHz, all return loss and The mutual coupling coefficient all are lower than-12.5dB.The transmission coefficient amplitude scintillation is little, and in the scope of 30.5GH, its error is less than 3dB at 28GH.Phase difference is 135 ° respectively between the adjacent output port that this Wave-packet shaping network can provide, and 45 ° ,-45 ° and-135 °, in the scope of 29.8GHz, its error is less than 5 ° at 28.8GHz.When from the excitation of second input port, the radiation efficiency of emulation can reach 86%.And under the kindred circumstances, the radiation efficiency of Butler matrix only is 67.1%.
Claims (3)
1. a millimeter wave frequency band multimode Wave-packet shaping network is characterized in that this network comprises that the upper strata metal applies copper face (1), lower metal applies copper face (2), dielectric substrate (3), plated-through hole (4), multi-mode substrate integration waveguide (5), input port (51), interior output port (52), substrate integration wave-guide phase-shift network (6), outer delivery outlet (7); This Wave-packet shaping network is a planar circuit structure; the upper strata metal applies copper face (1); lower metal applies the both sides that copper face (2) lays respectively at dielectric substrate (3); plated-through hole (4) passes dielectric substrate (3) and applies copper face (1) with the upper strata metal; lower metal applies copper face (2) and is connected and forms multi-mode substrate integration waveguide (5); substrate integration wave-guide phase-shift network (6); multi-mode substrate integration waveguide (5); the two directly is connected substrate integration wave-guide phase-shift network (6); input port (51) is positioned at a side of multi-mode substrate integration waveguide (5); interior output port (52) is positioned at the opposite side of multi-mode substrate integration waveguide (5) and joins with the inboard of substrate integration wave-guide phase-shift network (6), the outer delivery outlet (7) of the outer side joint of substrate integration wave-guide phase-shift network (6).
2. millimeter wave frequency band multimode Wave-packet shaping network according to claim 1, it is characterized by: substrate integration wave-guide phase-shift network (6) is by the position adjustments of plated-through hole (4), formation has the substrate integration wave-guide of different in width, its internal electromagnetic velocity of wave propagation of wide more substrate integration wave-guide is slow more, thereby realizes required phase-shift phase.
3. millimeter wave frequency band multimode Wave-packet shaping network according to claim 1 is characterized in that this Wave-packet shaping network has 4 input ports and 4 output ports, can motivate the some groups of outputs with fixed skew and equal amplitude at delivery outlet respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200406744U CN201229981Y (en) | 2008-07-18 | 2008-07-18 | Multiple mode beam forming network for millimeter wave frequency band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200406744U CN201229981Y (en) | 2008-07-18 | 2008-07-18 | Multiple mode beam forming network for millimeter wave frequency band |
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| Publication Number | Publication Date |
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| CN201229981Y true CN201229981Y (en) | 2009-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200406744U Expired - Lifetime CN201229981Y (en) | 2008-07-18 | 2008-07-18 | Multiple mode beam forming network for millimeter wave frequency band |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325273B (en) * | 2008-07-18 | 2012-01-04 | 东南大学 | Multi-mode substrate integration waveguide beam shaping network |
| CN103594810A (en) * | 2013-11-29 | 2014-02-19 | 东南大学 | Thin-substrate amplitude correction oscillator planar horn antenna |
| CN114171872A (en) * | 2021-11-26 | 2022-03-11 | 南京理工大学 | Broadband miniaturized millimeter wave double-channel cross bridge |
| US11563480B2 (en) * | 2016-05-04 | 2023-01-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Beam forming using an antenna arrangement |
-
2008
- 2008-07-18 CN CNU2008200406744U patent/CN201229981Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325273B (en) * | 2008-07-18 | 2012-01-04 | 东南大学 | Multi-mode substrate integration waveguide beam shaping network |
| CN103594810A (en) * | 2013-11-29 | 2014-02-19 | 东南大学 | Thin-substrate amplitude correction oscillator planar horn antenna |
| CN103594810B (en) * | 2013-11-29 | 2016-03-23 | 东南大学 | Thin substrate amplitude correction surface of oscillator horn antenna |
| US11563480B2 (en) * | 2016-05-04 | 2023-01-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Beam forming using an antenna arrangement |
| CN114171872A (en) * | 2021-11-26 | 2022-03-11 | 南京理工大学 | Broadband miniaturized millimeter wave double-channel cross bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090429 Effective date of abandoning: 20080718 |