CN107146930A - Half module substrate integrated wave guide bandpass filter based on S type complement helical lines - Google Patents
Half module substrate integrated wave guide bandpass filter based on S type complement helical lines Download PDFInfo
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- CN107146930A CN107146930A CN201710247317.9A CN201710247317A CN107146930A CN 107146930 A CN107146930 A CN 107146930A CN 201710247317 A CN201710247317 A CN 201710247317A CN 107146930 A CN107146930 A CN 107146930A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
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Abstract
The invention discloses a kind of half module substrate integrated wave guide bandpass filter based on S type complement helical lines, wave filter poor selectivity is mainly solved, narrow bandwidth, the technical problem such as insertion loss is big.The present invention separately designs circuit structure in the upper and lower surface of micro-strip medium substrate, upper surface includes symmetrical two microstrip feed lines and metal rectangular face, provided with 4 symmetrical L-type line of rabbet joint in metal rectangular face, micro-strip medium substrate lower surface where the L-type line of rabbet joint on corresponding area position provided with a pair longitudinally asymmetric S type complement helical cable architectures, wherein complement helical cable architecture unit is rotationally symmetrical in the horizontal.The half module substrate integrated wave guide bandpass filter of this new structure of the present invention, circuit is corresponded to up and down, and unit or so is symmetrical above and below, is fed using co-planar waveguide transition structure.Emulation and experiment prove that the present invention improves wave filter out-of-band frequency selectivity, and broader bandwidth, Insertion Loss is small, available for requiring in small volume, lightweight wireless communication system.
Description
Technical field
The invention belongs to technical field of electronic devices, more particularly to half module substrate integrated wave guide bandpass filter, it is specifically
A kind of new half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures, available for radio communication
System radio frequency front end.
Background technology
With the development and innovation of modern wireless communication systems, microwave and millimeter wave system towards miniaturization, high integration,
The direction of low cost is developed rapidly.The waveguiding structure of low-loss, high quality factor and high power capacity, due to its excellent property
It can be widely used, but its size and volume are excessive, it is difficult to suitable for miniaturization and the high occasion of integrated level；
Although and conventional microstrip structure radiation is larger, being due to that its size is small and processing is simple, disclosure satisfy that many circuits to volume
And the requirement of integrated level.
In order to realize wireless communication system to wave filter miniaturization and high performance requirement, substrate integration wave-guide
(Substrate Integrated Waveguide, SIW) is produced and grown up in this context.Substrate integration wave-guide
Structure is the novel planar structure based on micro-strip medium substrate, the advantage of both waveguide and microstrip structure has been merged, with relatively low
Radiation, small size, high quality factor, the features such as be easily integrated.In order to which the miniaturization of substrate integration wave-guide is better achieved, flood
Big professor and its team investigated half module substrate integrated wave guide (Half-mode Substrate Integrated in 2005
Waveguide, HMSIW), this structure enables to original size to reduce almost half.
Therefore, the superior function based on above HMSIW, lot of domestic and international research institution and scholar expanded in recent years
For the research of HMSIW bandpass filters, according to " Zhang, Q.L., Wang, B.Z., Zhao, D.S., andWu, K.:A
Compact Half-Mode Substrate Integrated Waveguide Bandpass Filter With Wide
Out-of-Band Rejection,IEEE Microw.Wirel.Compon.Lett.,2016,26,(7),pp.501-503”
The right-hand man's half module substrate integrated wave guide bandpass filter based on electro-magnetic bandgap (EBG) structure proposed, the wave filter leads to
Cross the loading electromagnetic bandgap structure in right-hand man's half module substrate integrated wave guide structure and introduce transmission zero at passband low frequency,
Stopband range is extended, but the filter bandwidht is narrower, squareness factor is poor.According to " Huang, Y.m., Shao, Z.H.,
Jiang,W.,Huang,T.,and Wang,G.A.,:Half-mode substrate integrated waveguide
bandpass filter loaded with horizontal–asymmetrical stepped-impedance
complementary split-ring resonators,Electron.Lett.,2016,52,(12),pp.1034-1036”
The half module substrate integrated wave guide bandpass filter based on stepped impedance type-complementary openings resonance ring structure proposed, the filtering
Traditional stepped impedance structure (SI) is combined by device with traditional complementary openings resonant ring (CSRR), can be effectively improved
CSRR equivalent inductance and electric capacity, so that the resonant frequency of wave filter is reduced, but the wave filter Out-of-band rejection is poor, and band
It is wide narrower.
To sum up, complementary openings resonant rings, defect are loaded in half module substrate integrated wave guide structure (DGS), electro-magnetic bandgap
Different types of wave filter can be realized Deng traditional structure, these structures can be attached in half module substrate integrated wave guide cut-off frequency
A passband is closely produced, but does not have transmission zero or only one of which transmission zero at produced passband low-and high-frequency, because
This, has a narrower bandwidth based on traditional structural design half module substrate integrated wave guide bandpass filter, out-of-band frequency selectivity compared with
Difference, the problems such as Insertion Loss is big.
The content of the invention
Present invention aims at for above-mentioned prior art not enough, there is provided a kind of compact conformation, insertion loss be small, frequency
Rate selectively good half module substrate integrated wave guide bandpass filter.
The present invention is a kind of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures, including micro-
Band medium substrate, the upper surface of micro-strip medium substrate is metal rectangular face, and the bottom surface of micro-strip medium substrate is situated between for all standing micro-strip
The metallic ground plate face of matter substrate, micro-strip medium substrate edge side is provided with homogeneous metal via, the two ends in metal rectangular face
Symmetrically it is connected to microstrip feed line, it is characterised in that：Metal rectangular face is located at the upper surface centre position of micro-strip medium substrate, should
The length in metal rectangular face and the length that the length sum of two microstrip feed lines is micro-strip medium substrate, and the metal rectangular face
It is wide with micro-strip medium substrate；Provided with 4 L-type line of rabbet joint on metal rectangular face, this 4 L type groove line transverse and longitudinals are symmetrical, wherein
Vertical line of symmetry is the longitudinal centre line on metal rectangular face, horizontal stroke be symmetrically on metal rectangular face cross central line it is downward
The long side of m millimeters of displacement, wherein the L-type line of rabbet joint is laterally connects up, and the short side of the L-type line of rabbet joint connects up for longitudinal direction；The length of 4 L-type line of rabbet joint
While the left and right edges from metal rectangular face extend internally；2 L type grooves lines are constituted together with the metal part between the long side of the L-type line of rabbet joint
Input, output co-planar waveguide transition structure, the metal layer part of co-planar waveguide transition structure are connected with microstrip feed line, and micro-
Ribbon feeder extends out to the edge of micro-strip medium substrate from the metal layer part edge of co-planar waveguide transition structure；Micro-strip is situated between
The metallic ground plate face of matter substrate etches a pair of longitudinally asymmetric S- type complement helical cable architectures, wherein vertical line of symmetry be on
The longitudinal centre line of metallic ground plate face；It is in rotationally symmetrical complement helical line that S- type complement helical cable architectures, which include a pair,
Structure and and one section inclination connecting line, the lateral symmetry line of complement helical cable architecture sum is the horizontal stroke on metallic ground plate face
To center line to m millimeters of bottom offset；S- type complement helical cable architectures are identical with S- type complement helical cable architecture structures；Metal connects
The wire location of a pair of S- type complement helical cable architectures in floor and the position of the L-type slot line structure on metal rectangular face
Correspond to up and down.
The problem of being existed based on prior art, the present invention proposes a kind of new S types-complement helical cable architecture, and
A kind of half module substrate integrated wave guide bandpass filter is devised on the basis of it, the present invention can be used in wireless communication system.
Compared with prior art, the present invention has advantages below：
1. the present invention loads 4 L-type line of rabbet joint in micro-strip medium substrate upper surface, while in micro-strip medium substrate lower surface
Above and below the new S- type complement helical cable architectures of loading, the wiring of S- type complement helical cable architectures and the position of L-type slot line structure
Correspondence, the wave filter of the half module substrate integrated wave guide design designed based on new S- type complement helicals cable architecture is in passband
A transmission zero is produced at low-and high-frequency respectively, the squareness factor of wave filter is improved, the frequency selection for improving wave filter is special
Property.
2. the present invention is obtained in the defective unit that micro-strip medium substrate lower surface is constituted using S- type complement helicals cable architecture
Passband resonance characteristic, the centre frequency of passband is only determined that size is small by defective unit, compact conformation, it is easy to analyze.
3. the present invention improves the performance in filter passband by using co-planar waveguide transition structure, band interpolation is reduced
Damage, and co-planar waveguide transition structure is smaller as the filter size of transition structure compared to from tapered transmission lines.
4. the present invention by adjust S- type complement helical cable architectures with metallization via distance, change metallization via with
Coupling between S- type complement helical cable architectures, realizes the tuning of pass band width, meets many-sided demand of radio communication.
5. present invention employs half module substrate integrated wave guide structure, the size of wave filter is further reduced, be easy to simultaneously
Debugging and design.
6. the present invention can carry out adaptive impovement according to the actual requirements, by the length, the half module base that change novel spiral spin line
The size of piece integrated waveguide adjusts the working frequency range of wave filter, so as to meet different application demands, designs simple and flexible.
Brief description of the drawings
Fig. 1 is structure chart of the invention；
Fig. 2 is Fig. 1 Facad structure figure；
Fig. 3 is Fig. 1 chart at the bottom of；
Fig. 4 is S parameter of the present invention emulation and measured result figure.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings：
Embodiment 1
At present, complementary openings resonant ring, defect are loaded in half module substrate integrated wave guide structure (DGS), electromagnetism are passed through
The traditional structures such as band gap can realize different types of wave filter, and these structures can be in half module substrate integrated wave guide cutoff frequency
A passband is produced near rate, but does not have transmission zero or only one of which transmission zero at produced passband low-and high-frequency
Point, therefore, the Insertion Loss based on traditional structural design half module substrate integrated wave guide bandpass filter are larger, narrower bandwidth, with outer frequency
Rate is selectively poor etc..In view of the above-mentioned problems, the present invention proposes a kind of new S types-complement helical by research with innovation
Cable architecture, and devise based on S types-complement helical cable architecture a kind of half module substrate integrated wave guide bandpass filter, this hair
It is bright to can be used in wireless communication system.
The present invention is a kind of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures, referring to figure
1, the half module substrate integrated wave guide bandpass filter of the invention based on S- type complement helical cable architectures includes micro-strip medium substrate 1,
The upper surface of micro-strip medium substrate 1 is metal rectangular face 2, and the bottom surface of micro-strip medium substrate 1 is metallic ground plate face 3, and micro-strip is situated between
Matter substrate 1 and subsidiary metal rectangular face 2 and metallic ground plate face 3 are integrated altogether, and its common edge side is provided with uniform gold
Categoryization via 4, is equivalent to the narrow wall of metal rectangular waveguide, these above-mentioned structure composition half module substrate integrated wave guides.Metal rectangular
The left and right ends in face 2 are symmetrically connected to microstrip feed line 5, for connecting sub-miniature A connector, give wave filter feed, wherein the micro-strip in left side
Feeder line 5 is input microstrip feed line, and the microstrip feed line 5 on right side is output microstrip feed line, referring to Fig. 1.Metal rectangular in the present invention
Face 2 is located at the upper surface centre position of micro-strip medium substrate 1, the length in the metal rectangular face 2 and the length of two microstrip feed lines 5
The length that sum is micro-strip medium substrate 1 is spent, and the metal rectangular face 2 and micro-strip medium substrate 1 are wide.In metal rectangular face 2
Provided with 4 L-type line of rabbet joint 6, this 4 transverse and longitudinals of the L-type line of rabbet joint 6 are symmetrical, wherein vertical line of symmetry is on the vertical of metal rectangular face 2
To center line, horizontal stroke is symmetrically the cross central line on metal rectangular face 2 to m millimeters of bottom offset, the wherein long side of the L-type line of rabbet joint 6
For horizontal wiring, the short side of the L-type line of rabbet joint connects up for longitudinal direction, if metal rectangular face 2 is the rectangular surfaces of long × wide composition, then
" L " of this 4 L-type line of rabbet joint is long parallel in long with metal rectangular face 2, and " L " short side is parallel with the broadside in metal rectangular face 2.
The left and right edges in " L " long side from metal rectangular face 2 of 4 L-type line of rabbet joint 6 extend internally；Four angles of micro-strip medium substrate 1 are equal
It is set to insulating surfaces.The lateral symmetry 2 L-type line of rabbet joint 6 in metal rectangular face 2 is together with the metal part between the long side of the L-type line of rabbet joint
Composition input, output co-planar waveguide transition structure, wherein, 2 lateral symmetry L-type line of rabbet joint 6 of left side are together with the long side of the L-type line of rabbet joint
Between metal part composition input co-planar waveguide transition structure 61,2 lateral symmetry lines of L-type groove 6 of right side are together with L-type groove
Metal part composition output co-planar waveguide transition structure 62 between line length side, referring to Fig. 2.Two co-planar waveguides in the present invention
The metal layer part of transition structure is connected with microstrip feed line 5, and microstrip feed line 5 is from the metal level of co-planar waveguide transition structure
Part edge extends out to the edge of micro-strip medium substrate 1, and left side microstrip feed line 5 is as the input of wave filter, and right side is micro-
Ribbon feeder 5 is as the output end of wave filter, and vice versa.
The metallic ground plate face 3 of micro-strip medium substrate 1 etches a pair of longitudinally asymmetric S- type complement helical lines in the present invention
Structure, i.e. the S- type complement helicals cable architecture 7 in left side and the S- type complement helicals cable architecture 8 on right side, referring to Fig. 3, wherein vertical pair
It is the longitudinal centre line on metallic ground plate face 3 to claim line.Left side S- type complement helicals cable architecture 7 includes a pair in rotation
Symmetrical complement helical line, wherein complement helical line 71 above and underlying complement helical line 73 pass through one section
Tilt connecting line 72 to connect, composition and annexation and the left side S- type complement helical lines of right side S- type complement helicals cable architecture 8
Structure 7 is identical, and simply both are symmetrical.The lateral symmetry line of rotationally symmetrical complement helical line 71 and 73 is up and down
Cross central line on metallic ground plate face 3 is to m millimeters of bottom offset.What metallic ground plate face 3 was provided with is located at left side S- types
Complement helical cable architecture 7 and the wire location positioned at right side S- type complement helicals cable architecture 8 and the L-type groove on metal rectangular face 2
The position of cable architecture is corresponded to up and down.
The present invention etches 4 L-type line of rabbet joint in micro-strip medium substrate upper surface, while in micro-strip medium substrate lower surface etching
New S- type complement helical cable architectures, the wiring of S- type complement helical cable architectures with it is right above and below the position of L-type slot line structure
Should, a kind of new half module substrate integrated wave guide bandpass filter based on said structure design is respectively produced in the high lower of passband
A transmission zero has been given birth to, the squareness factor of wave filter is improved, the frequency selective characteristic of wave filter is improved.Meanwhile, it is based on
Said structure realizes the filter with low insertion loss of bandpass filter, the superior function of small size.
Embodiment 2
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1, " L " long side of the upside L-type line of rabbet joint of input co-planar waveguide transition structure 61 is connected up from the left side in metal rectangular face 2
Edge extends to the right side edge of complement helical line 71 above and aligned, and " L " short side of the L-type line of rabbet joint is connected up from L
" L " long side edge of type groove line extends to the upper edge of complement helical line 71 above and aligned, with such
Push away, the counter structure of each L-type line of rabbet joint and complement helical line is such.
The present invention loads 4 L-type line of rabbet joint on metal rectangular face, and 2 lateral symmetry L-type line of rabbet joint are together with this 2 L-types
Metal part composition co-planar waveguide transition structure between the long side of the line of rabbet joint, the co-planar waveguide transition structure of formation can be S- types
Complement helical cable architecture is fed, and two transmission zeros are produced at filter passband two ends, improves out-of-band frequency selection
Property, meanwhile, co-planar waveguide transition structure realizes the impedance matching between microstrip feed line and wave filter, improves band-pass behavior,
Reduce the return loss of wave filter.
Embodiment 3
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Rotationally symmetrical complement helical line includes that two layers mutually nested, opening direction identical is humorous up and down in embodiment 1-2, the present invention
Shake ring, and connects one section of inclination connecting line of the two resonant rings.
In this example, the present invention uses two layers of mutually nested resonant ring and connects one section of parallax of the two resonant rings
Complement helical line is constituted, complement helical line effectively increases the physical length of S- type complement helical cable architectures, reduces S- types mutual
The resonant frequency of helix structure is mended, so as to effectively reduce the physical size of wave filter, filter construction is more stepped up
Gather, meet requirement of the modern wireless communication systems to miniaturized device.
Embodiment 4
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-3,4 horizontal strokes of the L-type line of rabbet joint 6 be symmetrically the cross central line on metal rectangular face 2 to m millimeters of bottom offset, wherein its
Middle m span is 0.6~0.725 millimeter, and m optimal value is 0.725 millimeter.In this example, m value is
0.725mm, proves, the passband of the wave filter is flatter, better performances by emulating.
The present invention is by lateral symmetry line of 4 lateral symmetry lines of the L-type line of rabbet joint 6 along metal rectangular face to bottom offset m millis
Rice, so as to realize the impedance matching between input and output microstrip feed line and input and output co-planar waveguide transition structure, reduces
The return loss of wave filter, improves the performance of wave filter.
Embodiment 5
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-4, S- type complement helical cable architecture 7 and S- type complement helicals cable architecture 8 and the distance for the via 4 that metallizes are used to change
Become the bandwidth of bandpass filter, S- type complement helicals cable architecture 7 and S- type complement helicals cable architecture 8 and metallization via 4 center of circle
Distance range be 0.6~2.2mm, be 0.15~0.5mm, the He of complement helical line 71 with the distance of the lower edge of metal rectangular face 2
73 distance is 1.2mm, and the centre distance of two S- type complement helicals cable architectures 7 and S- type complement helicals cable architecture 8 is
12mm。
The S- type complement helicals cable architecture 7 and right side S- type complement helicals cable architecture 8 in left side were with metallizing in the present invention
The coupling that the distance in the center of circle of hole 4 can change between S- type complement helical cable architectures and metallization via is strong and weak, so as to have
Effect tunes the bandwidth of the bandpass filter, and S- type complement helicals cable architecture 7 and 8 and the distance of the lower edge of metal rectangular face 2 are used for
Adjust the insertion loss of the wave filter, by substantial amounts of experiment and simulation analysis, in this example, the S- type complement helicals in left side
The optimum distance in cable architecture 7 and right side S- type complement helicals cable architecture 8 and metallization via 4 center of circle is 1.6mm, with metal square
The optimum distance of the lower edge of shape face 2 is 0.2mm, and other specification is ibid.By simulation analysis, the insertion in the filter passband
Loss is minimum, and return loss is in more than 20dB.
Embodiment 6
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-5, the span on " L " long side of the L-type line of rabbet joint 6 is 5.0~6.85mm, the value model of " L " short side of the L-type line of rabbet joint 6
Enclose for 1.8~2.2mm, the distance between the two lateral symmetry L-type line of rabbet joint " L " long sides are 2.5mm.
In the present invention width of feeding microstrip line be 2.5mm, i.e., corresponding characteristic impedance be 50 ohm, realize input, it is defeated
The impedance matching gone out between microstrip feed line 5 and half module substrate integrated wave guide, improves the performance of wave filter.In this example, L type grooves line 6
The optimal value in " L " long side be 6.85mm, the optimal value of " L " short side of the L-type line of rabbet joint 6 is 2.1mm, and m value is 0.6mm, left
The S- type complement helicals cable architecture 7 and right side S- type complement helicals cable architecture 8 of side and the distance in metallization via 4 center of circle are
0.6mm, the distance with the lower edge of metal rectangular face 2 is 0.15mm.The overall size of micro-strip medium substrate 1 is 21mm in the present invention
× 11mm, size is smaller, compact conformation, rigors of many circuits to volume and integrated level is disclosure satisfy that, available for thunder
Reach, in the wireless communication system such as space flight.
Embodiment 7
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-6, micro-strip medium substrate 1 uses F4BM-2 sheet materials, and dielectric constant is 2.2, and thickness is 0.8mm.In this example, L-type groove
" L " long side of line 6 is 5mm, and " L " short side of the L-type line of rabbet joint 6 is 1.8mm, and m value is 0.7mm, the S- type complement helicals in left side
Cable architecture 7 and right side S- type complement helicals cable architecture 8 and the distance in metallization via 4 center of circle are 2.2mm, with metal rectangular face 2
The distance of lower edge is 0.5mm.
Embodiment 8
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
" L " long side of the L-type line of rabbet joint 6 is 6mm in embodiment 1-7, this example, and " L " short side of the L-type line of rabbet joint 6 is 2.2mm.
The present invention realizes the impedance between input, output microstrip feed line and wave filter using co-planar waveguide transition structure
Match somebody with somebody, improve performance in filter passband, reduce insertion loss；Meanwhile, the filtering designed using co-planar waveguide transition structure
Device is smaller as the filter size of transition structure compared to from tapered transmission lines, meets wireless communication system to small-sized
Change the requirement of device.
Embodiment 9
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-8, below, providing a detailed example, the present invention is further described：
For the present Research of prior art, the present invention proposes a kind of based on S- type complement helical cable architecture half-module chip collection
Into waveguide bandpass filter, referring to Fig. 1, the invention mainly comprises have micro-strip medium substrate 1, metal rectangular face 2, metallic ground
Plate face 3, homogeneous metal via 4, microstrip feed line 5, the L-type line of rabbet joint 6, a pair of S- type complement helicals cable architectures 7 and 8.Wherein：
Micro-strip medium substrate 1 covers silver plate using two-sided, and two-sided cover is provided with metal rectangular face 2 above silver plate, two-sided to cover silver plate
It is the metallic ground plate face 3 of all standing below, in being total to for micro-strip medium substrate 1, metal rectangular face 2 and metallic ground plate face 3
The same side be provided with homogeneous metal via 4, formed half module substrate integrated wave guide structure.4 are provided with metal rectangular face 2
The symmetrical L-type line of rabbet joint of transverse and longitudinal, is shown in Fig. 2, i.e., metal rectangular face 2 every broadside provided with 2 L-type line of rabbet joint, wherein, indulge
Line of symmetry is the longitudinal centre line on metal rectangular face 2, horizontal stroke be symmetrically on metal rectangular face 2 cross central line it is downward
M millimeters of displacement, m optimum length is 0.725mm；The long side of this 4 L type grooves lines 6 is laterally connects up, from metal rectangular face 2
Left and right edges extend internally, and the short side of the L-type line of rabbet joint connects up for longitudinal direction.2 lateral symmetry L-type line of rabbet joint 6 are long together with the L-type line of rabbet joint
Metal part composition input between side, output co-planar waveguide transition structure, wherein, 2 lateral symmetry L-type line of rabbet joint 6 of left side
Together with the metal part composition input co-planar waveguide transition structure 61 between the long side of the L-type line of rabbet joint, 2 lateral symmetry L-types of right side
The line of groove 6 is together with the metal part composition output co-planar waveguide transition structure 62 between L type groove line lengths side；It is every in metal rectangular face 2
The distance between " L " long side of 2 L-shaped line of rabbet joint that bar broadside is provided with is 2.5mm；The metal level portion of co-planar waveguide transition structure
Divide and be connected with microstrip feed line 5, and microstrip feed line 5 is extended out to from the metal layer part edge of co-planar waveguide transition structure
The edge of micro-strip medium substrate 1, the width of microstrip feed line 5 is 2.5mm, i.e., corresponding characteristic impedance is 50 ohm, realizes micro-strip
The impedance matching of feeder line 5 and half module substrate integrated wave guide, microstrip feed line 5 is connected to vector network analyzer for connecting SMA joints
The test of enterprising line filter.
A pair of longitudinally asymmetric S- type complement helicals cable architectures 7 are etched in the metallic ground plate face 3 of micro-strip medium substrate 1
With S- type complement helicals cable architecture 8, wherein vertical line of symmetry is the longitudinal centre line on metallic ground plate face 3；S- types complementation spiral shell
Spin line structure 7 includes a pair in rotationally symmetrical complement helical line 71 and 73 and one section of inclination connecting line 72, and this section is tilted
The connection complement helical of connecting line 72 line 71 and 73.The lateral symmetry line of complement helical line 71 and 73 is on metallic ground plate face 3
Cross central line to m millimeters of bottom offset, wherein, complement helical line 71 and complement helical line 73 are by two layers of opening direction phase
Two same resonant rings, and connect one section of inclination connecting line composition of the two resonant rings.S- type complement helicals cable architecture 8
It is identical with the composition and structure of S- type complement helicals cable architecture 7.The physics of complement helical line can be increased using two layers of resonant ring
Length, reduces the resonant frequency of resonant ring, so as to effectively reduce the size of wave filter.It is humorous using one layer in practical application
The ring structure that shakes can also realize filter function, but the performance of filter realized is poor.
Referring to Fig. 3, S- type complement helicals cable architecture 7 and S- type complement helicals cable architecture 8 in metallic ground plate face 3
Wire location and the locations of structures of 4 L-type line of rabbet joint 6 on metal rectangular face 2 are corresponding up and down, i.e. the 2 of the left side of metal rectangular face 2
The left side edge in long side from the metal rectangular face 2 of the bar L-type line of rabbet joint extends internally, and extends respectively into complement helical line 71 and complementation
The right side edge of helix 73, and aligned, the long sides of 2 L type groove lines on the right side of metal rectangular face 2 is from metal rectangular face 2
Right side edge extend internally, extend respectively into the left side edge of complement helical line 81 and complement helical line 83, and right therewith
Together.
The metallization via 4 that a row equidistantly arranges is embedded with the edge side of micro-strip medium substrate 1, metallize via 4
Diameter, spacing all same, and contour with micro-strip medium substrate 1, metal column has connected the gold of the upper surface of micro-strip medium substrate 1
Belong to rectangular surfaces 2 and the metallic ground plate face 3 of lower surface.
The present invention, it is simple in construction using half module substrate integrated wave guide structure, it is easy to be designed wave filter and debug,
Simultaneously using fundamental resonance unit of the S- type complement helical cable architectures as wave filter, it is easy to adjust the resonant frequency of wave filter,
To meet different application demands.
The technique effect of the present invention is illustrated below by emulation and test：
Embodiment 10
The overall composition and structure of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures are same
Embodiment 1-9, setting relative dielectric constant εr=2.2, micro-strip dielectric substrate thickness is 0.8mm, feeder line width 2.5mm, in electricity
Magnetic simulation software HFSS has carried out emulating and being tested material object using vector network measuring instrument N5230A to wave filter,
Obtain the insertion loss curve of wave filter | S21|, return loss plot | S11| as shown in Figure 4.
From fig. 4, it can be seen that the free transmission range of the wave filter is 2.4~3.0GHz, relative bandwidth is 22%, and actual measurement is most
Big in-band insertion loss is 1.2dB, produces a transmission zero respectively at the low-and high-frequency of passband, frequency selectivity is preferable.
The present invention can carry out adaptive impovement according to the actual requirements, by change S- type complement helical cable architectures length,
Medium substrate size adjusts the working frequency range of wave filter, so as to meet different application demands, designs simple and flexible.
In Fig. 4, solid line is simulation result, and dotted line is measured result, by Fig. 4 it can also be seen that simulation result and actual measurement are tied
Fruit is consistent.Emulation uniformly shows the present invention on the basis of half module substrate integrated wave guide by the complementary spiral shell of S- types with measured result
Spin line structure as wave filter fundamental resonance unit, in that context it may be convenient to the working frequency of wave filter is adjusted, while co-planar waveguide
Transition structure improves more flat in filter passband performance, passband, and insertion loss further reduces, and squareness factor is obtained
Further improve, the wave filter can be used for requiring small volume, lightweight, in the high wireless communication system of performance.
Present invention mainly solves wave filter poor selectivity, narrow bandwidth, the technical problem such as insertion loss is big.In complement helical
The basis design of line and a kind of new S- type complement helical cable architecture units are proposed, based on this new structure unit
Half module substrate integrated wave guide bandpass filter is devised, and input, output end and filter are realized using co-planar waveguide transition structure
The impedance matching of ripple device.Meanwhile, Novel Filter proposed by the invention generates two new transmission zero at passband two ends
Point, improves the frequency selective characteristic of wave filter, realizes the small size of wave filter, the superior function such as filter with low insertion loss.
Half module substrate integrated wave guide bandpass filter disclosed by the invention based on S- type complement helical lines, mainly solves filter
Ripple device poor selectivity, narrow bandwidth, the technical problem such as insertion loss is big.The present invention distinguishes in the upper and lower surface of micro-strip medium substrate
Circuit structure is designed, upper surface includes symmetrical two microstrip feed lines and metal rectangular face, provided with mutual in metal rectangular face
Symmetrical 4 L-type line of rabbet joint, micro-strip medium substrate lower surface where the L-type line of rabbet joint on corresponding area position provided with a pair of longitudinal direction it is right
The S- type complement helical cable architectures of title, wherein complement helical cable architecture unit is rotationally symmetrical in the horizontal.The present invention is this new
The half module substrate integrated wave guide bandpass filter of structure, circuit is corresponded to up and down, and unit or so is symmetrical above and below, using co-planar waveguide
Transition structure is fed.Emulation and experiment prove that the present invention improves wave filter out-of-band frequency selectivity, and broader bandwidth, Insertion Loss is small,
Available for requiring in small volume, lightweight wireless communication system.
Claims (6)
1. a kind of half module substrate integrated wave guide bandpass filter based on S- type complement helical cable architectures, including micro-strip medium substrate
(1), the upper surface of micro-strip medium substrate (1) is metal rectangular face (2), and the bottom surface of micro-strip medium substrate (1) is all standing micro-strip
The metallic ground plate face (3) of medium substrate (1), micro-strip medium substrate edge side is provided with homogeneous metal via (4), metal square
The two ends in shape face (2) are symmetrically connected to microstrip feed line (5), it is characterised in that：Metal rectangular face (2) is located at micro-strip medium substrate
(1) upper surface centre position, the length in the metal rectangular face (2) and the length sum of two microstrip feed lines (5) are situated between for micro-strip
The length of matter substrate (1), and the metal rectangular face (2) and micro-strip medium substrate (1) are wide；4 are provided with metal rectangular face (2)
The bar L-type line of rabbet joint (6), this 4 L-type line of rabbet joint (6) transverse and longitudinals are symmetrical, wherein vertical line of symmetry is the longitudinal direction on metal rectangular face (2)
Center line, horizontal stroke is symmetrically the cross central line on metal rectangular face (2) to m millimeters of bottom offset, the wherein length of the L-type line of rabbet joint (6)
Side is laterally connects up, and the short side of the L-type line of rabbet joint connects up for longitudinal direction；Left and right of the long side of 4 L-type line of rabbet joint (6) from metal rectangular face (2)
Edge extends internally；2 L-type line of rabbet joint (6) input together with the metal part composition between the L-type line of rabbet joint (6) long side, export coplanar ripple
Transition structure is led, the metal layer part of co-planar waveguide transition structure is connected with microstrip feed line (5)；Micro-strip medium substrate (1)
Metallic ground plate face (3) etches a pair of longitudinally asymmetric S- type complement helical cable architectures (7) and S- type complement helical cable architectures
(8), wherein vertical line of symmetry is the longitudinal centre line on metallic ground plate face (3)；S- type complement helical cable architectures (7) include
A pair in rotationally symmetrical complement helical line (71) and (73) and one section of inclination connecting line (72), complement helical line (71) and
(73) lateral symmetry line is the cross central line on metallic ground plate face (3) to m millimeters of bottom offset；S- type complement helical lines
Structure (8) is identical with S- type complement helical cable architecture (7) structure；S- type complement helical cable architectures in metallic ground plate face (3)
(7) above and below the position of the L-type slot line structure and on the wire location of S- type complement helical cable architectures (8) and metal rectangular face (2)
Correspondence.
2. a kind of half module substrate integrated wave guide bandpass filtering based on S- type complement helical cable architectures according to claim 1
Device, it is characterised in that the left side edge that the long side of the upper left side L-type line of rabbet joint connects up from metal rectangular face extends to corresponding complementary spiral shell
The right side edge of spin line is simultaneously aligned, and its short side connects up from the long side edge of the L-type line of rabbet joint and extends to corresponding complement helical line
Upper edge and aligned, by that analogy, the counter structure of each L-type line of rabbet joint and complement helical line is such.
3. a kind of half module substrate integrated wave guide bandpass filtering based on S- type complement helical cable architectures according to claim 1
Device, it is characterised in that rotationally symmetrical complement helical line includes two layers of mutually nested, opening direction identical resonance above and below described
Ring, and connect one section of inclination connecting line of the two resonant rings.
4. a kind of half module substrate integrated wave guide bandpass filtering based on S- type complement helical cable architectures according to claim 1
Device, it is characterised in that 4 L-type line of rabbet joint (6) horizontal stroke is symmetrically the cross central line on metal rectangular face (2) to bottom offset m
Millimeter, wherein m span are 0.6~0.725 millimeter.
5. a kind of half module substrate integrated wave guide bandpass filtering based on S- type complement helical cable architectures according to claim 1
Device, it is characterised in that the S- types complement helical cable architecture (7) and S- type complement helical cable architectures (8) and metallization via (4)
Distance range be 0.6~2.2mm, S- type complement helical cable architectures (7) and S- type complement helical cable architectures (8) and metal rectangular
The distance of face (2) lower edge is 0.15~0.5mm, and the distance between two rotationally symmetrical complement helical lines are 1.2mm up and down,
Centre distance between two S- type complement helical cable architectures (7) and S- type complement helical cable architectures (8) is 12mm.
6. a kind of half module substrate integrated wave guide bandpass filtering based on S- type complement helical cable architectures according to claim 2
Device, it is characterised in that the span on the L-type line of rabbet joint (6) long side is 5.0~6.85mm, the span of the L-type line of rabbet joint (6) short side
For 1.8~2.2mm, the distance between two lateral symmetry long sides of the L-type line of rabbet joint are 2.5mm, and the width of microstrip feed line (5) is
2.5mm, realizes the impedance matching between half module substrate integrated wave guide and input, output microstrip feed line (5).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509671A (en) * | 2018-01-30 | 2018-09-07 | 西安电子科技大学 | microwave filter coupling parameter extracting method |
| CN108539333A (en) * | 2018-05-17 | 2018-09-14 | 重庆大学 | Mix the Compact type broadband bandpass filter of half module substrate integrated wave guide and microstrip line |
| CN109149028A (en) * | 2018-07-02 | 2019-01-04 | 杭州电子科技大学 | The four mould dual frequency filters based on single rectangle SIW structure |
| CN111244587A (en) * | 2020-01-19 | 2020-06-05 | 西安电子科技大学 | Double-frequency third-order band-pass filter based on microstrip ridge gap waveguide |
| CN113097670A (en) * | 2021-04-13 | 2021-07-09 | 西华大学 | Half-mode substrate integrated waveguide liquid crystal tunable filter with embedded coupling metal wire |
| CN116315553A (en) * | 2023-04-10 | 2023-06-23 | 电子科技大学 | Transition structure suitable for substrate integrated waveguide-microstrip |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925211A (en) * | 2006-09-22 | 2007-03-07 | 东南大学 | Half-modular substrate integral wave guide filter |
| CN101615711A (en) * | 2009-06-10 | 2009-12-30 | 东南大学 | Folding self-die substrate integrated waveguide |
| CN104425859A (en) * | 2013-08-27 | 2015-03-18 | 电子科技大学 | Duplexer based on substrate integrated waveguide and complementary spiral resonant ring |
-
2017
- 2017-04-14 CN CN201710247317.9A patent/CN107146930B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925211A (en) * | 2006-09-22 | 2007-03-07 | 东南大学 | Half-modular substrate integral wave guide filter |
| CN101615711A (en) * | 2009-06-10 | 2009-12-30 | 东南大学 | Folding self-die substrate integrated waveguide |
| CN104425859A (en) * | 2013-08-27 | 2015-03-18 | 电子科技大学 | Duplexer based on substrate integrated waveguide and complementary spiral resonant ring |
Non-Patent Citations (2)
| Title |
|---|
| 马笑言: ""基于消失模的基片集成波导滤波器的研究"", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
| 高浩洋: ""基片集成波导在微波电路中的应用研究"", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509671A (en) * | 2018-01-30 | 2018-09-07 | 西安电子科技大学 | microwave filter coupling parameter extracting method |
| CN108509671B (en) * | 2018-01-30 | 2021-06-01 | 西安电子科技大学 | Microwave filter coupling parameter extraction method |
| CN108539333A (en) * | 2018-05-17 | 2018-09-14 | 重庆大学 | Mix the Compact type broadband bandpass filter of half module substrate integrated wave guide and microstrip line |
| CN108539333B (en) * | 2018-05-17 | 2019-12-06 | 重庆大学 | compact broadband band-pass filter of mixed half-mode substrate integrated waveguide and microstrip line |
| CN109149028A (en) * | 2018-07-02 | 2019-01-04 | 杭州电子科技大学 | The four mould dual frequency filters based on single rectangle SIW structure |
| CN111244587A (en) * | 2020-01-19 | 2020-06-05 | 西安电子科技大学 | Double-frequency third-order band-pass filter based on microstrip ridge gap waveguide |
| CN113097670A (en) * | 2021-04-13 | 2021-07-09 | 西华大学 | Half-mode substrate integrated waveguide liquid crystal tunable filter with embedded coupling metal wire |
| CN116315553A (en) * | 2023-04-10 | 2023-06-23 | 电子科技大学 | Transition structure suitable for substrate integrated waveguide-microstrip |
| CN116315553B (en) * | 2023-04-10 | 2024-04-12 | 电子科技大学 | Transition structure suitable for substrate integrated waveguide-microstrip |
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