CN205081202U - Transmission line and flat cable - Google Patents
Transmission line and flat cable Download PDFInfo
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- CN205081202U CN205081202U CN201520857282.7U CN201520857282U CN205081202U CN 205081202 U CN205081202 U CN 205081202U CN 201520857282 U CN201520857282 U CN 201520857282U CN 205081202 U CN205081202 U CN 205081202U
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Abstract
The utility model discloses constitute one kind including a plurality of transmission line portions in 1 range upon range of insulator, and can restrain the transmission line and flat cable of the unnecessary coupling between these a plurality of transmission line portions. Range upon range of insulator that includes range upon range of a plurality of insulator layers and obtain and the conductor pattern that disposes along the insulator layer in the inside of range upon range of insulator. The conductor pattern includes upper portion earthing conductor pattern (21, 23) in the forming section, lower part earthing conductor pattern (22, 24 ), the 1st signal conductor pattern (31) and the 2nd signal conductor pattern (32) that have part parallel each other, upper portion earthing conductor pattern (21, 23 )And lower part earthing conductor pattern (22, 24 )In parallel part partly, the 1st signal conductor pattern (31) and the 2nd signal conductor pattern (32) are cliied to range upon range of direction along the insulator layer, still include the 1st emptying aperture (H1) that forms between the 1st signal conductor pattern (31) and the 2nd signal conductor pattern (32).
Description
Technical field
The utility model relates to the transmission line and flat cable that transmit multiple high-frequency signal.
Background technology
In the past, the various transmission lines of transmitting high-frequency signal are designed.Such as, the transmission line of strip lines configuration shown in patent documentation 1.Transmission line described in patent documentation 1 comprises the stacked insulator of the strip that the transmission direction along high-frequency signal extends, many barss circuit and the 1st, the 2nd earthing conductor.Many barss circuit staggers alternatively up and down, and relative to the 1st, the 2nd earthing conductor is arranged in parallel.According to this structure, the characteristic impedance of these circuits is matched to setting, and many circuits are configured to high-density.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 4-144301 publication
Utility model content
Utility model technical problem to be solved
In the transmission line of the structure shown in patent documentation 1, be difficult to each holding wire to be adjusted to desired impedance.In addition, due to total ground plane overlapping in the stacking direction, therefore, the coupling via ground plane is easily produced.That is, the signals leakiness between the transmission line caused because of feedback current is easily produced.
On the other hand, considering following structure: by configuring interlayer connection conductor between holding wire, utilizing this interlayer connection conductor, suppress the unnecessary coupling between adjacent holding wire.
But, configure between adjacent holding wire in the structure of interlayer connection conductor, produce following problem.
A (), when adopting the form increasing the spacing being configured at interlayer connection conductor between adjacent holding wire or the form not arranging interlayer connection conductor, holding wire easily carries out unnecessary coupling each other.On the other hand, if reduce the spacing of interlayer connection conductor, then the electric capacity between holding wire and interlayer connection conductor becomes large, is difficult to the characteristic impedance realizing the desired acquisition as transmission line.
B () reduces the width of stacked insulator, the electric capacity produced between interlayer connection conductor and holding wire is larger, is difficult to the characteristic impedance realizing the desired acquisition as transmission line.
Therefore, the purpose of this utility model is that providing a kind of comprises multiple transmission line portion at 1 stacked insulator and can suppress transmission line and the flat cable of the unnecessary coupling between the plurality of transmission line portion.
The technical scheme of technical solution problem
(1) transmission line of the present utility model comprises:
Stacked multiple insulator layer and the stacked insulator obtained; And
At the conductive pattern that the inside of described stacked insulator configures along described insulator layer,
The feature of this transmission line is:
Described conductive pattern comprises top earthing conductor pattern, lower ground conductive pattern, the 1st signal conductor pattern with parallel part and the 2nd signal conductor pattern,
Described top earthing conductor pattern and described lower ground conductive pattern are in a part for described parallel section, and the stacked direction along described insulator layer clamps described 1st signal conductor pattern and described 2nd signal conductor pattern,
Also be included in the 1st emptying aperture (between signal conductor emptying aperture) formed between described 1st signal conductor pattern and described 2nd signal conductor pattern.
According to said structure, utilize top earthing conductor pattern, lower ground conductive pattern and the 1st signal conductor pattern to form the 1st transmission line, utilize top earthing conductor pattern, lower ground conductive pattern and the 2nd signal conductor pattern to form the 2nd transmission line.And, by forming emptying aperture between the 1st signal conductor pattern and the 2nd signal conductor pattern, thus there is the lower part of relative dielectric constant between the 1st signal conductor pattern and the 2nd signal conductor pattern.Thus, the 1st signal conductor pattern is inhibited with unnecessary being coupled of the 2nd signal conductor pattern via electromagnetic field.Therefore, even if make the interval of the 1st signal conductor pattern and the 2nd signal conductor pattern narrower, also can guarantee the isolation (isolation) specified, therefore, the width of transmission line entirety can be reduced.
(2) in above-mentioned (1), be preferably, the bearing of trend along described 1st signal conductor pattern and described 2nd signal conductor pattern is configured with multiple described 1st emptying aperture.
According to said structure, compared with forming the situation of continuous print emptying aperture, not only can keep mechanical strength but also easily bend.
(3) in the transmission line described in above-mentioned (1) or (2), be preferably, at least one party in described top earthing conductor pattern and described lower ground conductive pattern is separated into along the 1st earthing conductor drafting department of described 1st signal conductor pattern and the 2nd earthing conductor drafting department along described 2nd signal conductor pattern
The 2nd emptying aperture (between earthing conductor emptying aperture) is formed between described 1st earthing conductor drafting department and described 2nd earthing conductor drafting department.
According to said structure, by by the 1st earthing conductor drafting department and the 2nd earthing conductor pattern part from, and form the 2nd emptying aperture between the 1st earthing conductor drafting department and the 2nd earthing conductor drafting department, thus be inhibited via the coupling of earthing conductor pattern (the 1st earthing conductor drafting department and the 2nd earthing conductor drafting department).
(4) in the transmission line described in above-mentioned (3), be preferably, the bearing of trend along described 1st signal conductor pattern and described 2nd signal conductor pattern is configured with multiple described 2nd emptying aperture.
According to said structure, compared with forming the situation of continuous print emptying aperture, not only can keep mechanical strength but also easily bend.
(5) in the transmission line described in above-mentioned (3) or (4), be preferably, described 1st emptying aperture and described 2nd emptying aperture are continuous print.
According to said structure, the unnecessary coupling of the electromagnetic field that the electromagnetic field formed via the 1st signal conductor pattern and the 2nd signal conductor pattern are formed is inhibited further.
(6) in the transmission line according to any one of above-mentioned (3) to (5), be preferably, when stacked direction along described insulator layer observes (overlooking), described 1st earthing conductor drafting department or described 2nd earthing conductor drafting department are between described 1st signal conductor pattern and described 2nd signal conductor pattern and the region not being formed with described 2nd emptying aperture has outstanding protuberance, also comprise interlayer connection conductor, this interlayer connection conductor is formed at described protuberance, is connected by described top earthing conductor pattern with described lower ground conductive pattern.
According to said structure, the current potential of top earthing conductor pattern and lower ground conductive pattern becomes stable, and the 1st transmission line portion via top earthing conductor pattern and lower ground conductive pattern is inhibited with the 2nd being coupled of transmission line portion.In addition, configure interlayer connection conductor and do not expand the width of transmission line entirety.In addition, protuberance is configured at the inside of transmission line but not sidepiece, therefore, can suppress from protuberance and the unnecessary radiation of interlayer connection conductor being formed at protuberance.
(7) in the transmission line described in above-mentioned (6), be preferably, in described protuberance, the 1st protuberance given prominence to from described 1st earthing conductor drafting department and the 2nd protuberance given prominence to from described 2nd earthing conductor drafting department are along the bearing of trend alternately configuration of described 1st signal conductor pattern and described 2nd signal conductor pattern.
According to said structure, with the interlayer connection conductor (the 1st interlayer connection conductor) of the 1st earthing conductor drafting department conducting and adjacent via emptying aperture with the interlayer connection conductor (the 2nd interlayer connection conductor) of the 2nd earthing conductor drafting department conducting, therefore, unnecessary being coupled between the 1st interlayer connection conductor with the 2nd interlayer connection conductor is inhibited.
(8) in the transmission line according to any one of above-mentioned (1) to (7), preferably comprise interlayer connection conductor, when observing (overlooking) along the stacked direction of described insulator layer, described top earthing conductor pattern, by between described 1st signal conductor pattern and described 2nd signal conductor pattern, is connected with described lower ground conductive pattern by this interlayer connection conductor.
According to said structure, the current potential of top earthing conductor pattern and lower ground conductive pattern becomes stable, and the 1st transmission line portion via top earthing conductor pattern and lower ground conductive pattern is inhibited with the 2nd being coupled of transmission line portion.
(9) in the transmission line according to any one of above-mentioned (1) to (8), be preferably, described 1st signal conductor pattern offsets near the earthing conductor pattern of described top, described 2nd signal conductor pattern offsets near described lower ground conductive pattern, and described 1st signal conductor pattern and described 2nd signal conductor pattern are formed at different insulator layers.
According to said structure, the space interval between the 1st signal conductor pattern and the 2nd signal conductor pattern broadens, and need not expand the width of transmission line entirety, and unnecessary being coupled between the 1st signal conductor pattern with the 2nd signal conductor pattern is inhibited.
(10) in the transmission line described in above-mentioned (9), be preferably, in described 1st signal conductor pattern, the surface roughness in the face relative with described top earthing conductor pattern is less than the surface roughness in the face relative with described lower ground conductive pattern, in described 2nd signal conductor pattern, the surface roughness in the face relative with described lower ground conductive pattern is less than the surface roughness in the face relative with described top earthing conductor pattern.
According to said structure, relaxed at the concentrated of electromagnetic field intensity in the thicker face of surface roughness, the conductor losses in the 1st, the 2nd signal conductor pattern reduces, and the loss of transmission line reduces.
(11) in the transmission line described in above-mentioned (9) or (10), be preferably, the surface roughness in the face relative with described 1st signal conductor pattern of described top earthing conductor pattern is less than opposing face, and the surface roughness in the face relative with described 2nd signal conductor pattern of described lower ground conductive pattern is less than opposing face.
According to said structure, relaxed at the concentrated of electromagnetic field intensity in the thicker face of surface roughness, the conductor losses in earthing conductor pattern reduces, and the loss of transmission line reduces.
(12) in the transmission line described in above-mentioned (10) or (11), be preferably, in described 1st signal conductor pattern, the face that surface roughness is larger is carried by insulator layer, in described 2nd signal conductor pattern, the face that surface roughness is larger is carried by insulator layer.
According to said structure, when insulator layer is stacked, cable bend time signal conductor pattern position skew less, position can be suppressed to offset the characteristic variations brought.
(13) in the transmission line according to any one of above-mentioned (10) to (12), be preferably, in the earthing conductor pattern of described top, the face that surface roughness is larger is carried by insulator layer, in described lower ground conductive pattern, the face that surface roughness is larger is carried by insulator layer.
According to said structure, when insulator layer is stacked, cable bend time earthing conductor pattern position skew less, position can be suppressed to offset the characteristic variations brought.
(14) feature of flat cable of the present utility model is, be made up of transmission line and the connector that is connected with described transmission line, the transmission line of described transmission line according to any one of above-mentioned (1) to (13), described connector device is loaded in the stacked insulator of described transmission line.
According to said structure, the unnecessary coupling formed between small-sized and multiple transmission line portion is suppressed and the flat cable that suppressed of unnecessary radiation.
Utility model effect
According to the utility model, can suppress to comprise the 1st transmission line of the 1st signal conductor pattern, top earthing conductor pattern and lower ground conductive pattern and unnecessary being coupled between the 2nd transmission line comprising the 2nd signal conductor pattern, top earthing conductor pattern and lower ground conductive pattern.In addition, even if make the interval of the 1st signal conductor pattern and the 2nd signal conductor pattern narrower, also can guarantee the isolation specified, therefore, the width of transmission line entirety can be reduced.
Accompanying drawing explanation
Fig. 1 (A) is the exploded perspective view of the transmission line 101 of execution mode 1, and Fig. 1 (B) is the stereogram of transmission line 101.
Fig. 2 is the cutaway view of transmission line 101 on the face vertical with signal transmission direction.
Fig. 3 is the stereoscopic figure of the flat cable 201 of execution mode 1.
Fig. 4 is the partial top view of the various conductive patterns representing each insulator layer included by transmission line 101 and be formed at each insulator layer.
Fig. 5 (A) is the cutaway view of the mobile electronic device of the installment state of the ffc 201 representing present embodiment, and 5 (B) are the vertical views of the enclosure interior of this mobile electronic device.
Fig. 6 (A) is the exploded perspective view of the formation midway of the transmission line of execution mode 2, and Fig. 6 (B) is the stereogram of the formation midway of transmission line.Fig. 6 (C) is the stereogram of transmission line 102.
Fig. 7 is the cutaway view of transmission line 102 on the face vertical with signal transmission direction.
Fig. 8 (A) is the exploded perspective view of the transmission line 103 of execution mode 3, and Fig. 8 (B) is the stereogram of transmission line 103.
Fig. 9 (A) is the cutaway view of the A-A part in 8 (B), and Fig. 9 (B) is the cutaway view of the B-B part in Fig. 8 (B).
Figure 10 is the stereogram of the transmission line 104 of execution mode 4.
Figure 11 is the vertical view of transmission line 104.
Figure 12 (A) is the cutaway view of the A-A part in Figure 10, and Figure 12 (B) is the cutaway view of the B-B part in Figure 10.
Figure 13 is the exploded perspective view of the transmission line 105 of execution mode 5.
Figure 14 (A) is the cutaway view of the A-A part in Figure 13, Figure 14 (B) is the cutaway view of the B-B part in Figure 13, Figure 14 (C) is the cutaway view of the C-C part in Figure 13, and Figure 14 (D) is the cutaway view of the D-D part in Figure 13.
Figure 15 (A) is the view sub-anatomy of the transmission line 106 of execution mode 6, and Figure 15 (B) is the cutaway view of transmission line 106.
Figure 16 is the view sub-anatomy of the transmission line 107 of execution mode 7.
Embodiment
Below, with reference to accompanying drawing, enumerating several concrete example, representing for implementing multiple mode of the present utility model.In the various figures, identical label is marked for same area.After execution mode 2, omit the description to the item common with execution mode 1, difference is described.Particularly, for the identical action effect of same structure, successively do not illustrate in each execution mode.
" execution mode 1 "
Fig. 1 (A) is the exploded perspective view of the transmission line 101 of execution mode 1, and Fig. 1 (B) is the stereogram of transmission line 101.Fig. 2 is the cutaway view of transmission line 101 on the face vertical with signal transmission direction.
Transmission line 101 comprises the stacked insulator 10 that stacked multiple insulator layer 12,13,14,15 obtains and the various conductive patterns configured along insulator layer 12 ~ 15 in the inside of this stacked insulator 10.
Above-mentioned conductive pattern comprises the top earthing conductor pattern (21 configured along insulator layer 12,23), along insulator layer 15 configure lower ground conductive pattern (22,24), along insulator layer 14 configure the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32.
In the present embodiment, earthing conductor pattern in top is made up of top the 1st earthing conductor drafting department 21 and top the 2nd earthing conductor drafting department 23.Lower ground conductive pattern is made up of bottom the 1st earthing conductor drafting department 22 and bottom the 2nd earthing conductor drafting department 24.
Above-mentioned insulator layer 12,14,15 is the insulator sheet portion being such as pasted with the one side copper-surfaced insulator sheet material of Copper Foil at one side.Insulator layer 13 is insulator sheet material.These insulator sheet materials are such as the sheet material of liquid crystal polymer (LCP).The dielectric constant of liquid crystal polymer is lower, therefore, even if make signal conductor pattern and earthing conductor pattern close, also can the capacitive component of limiting circuitry.In addition, because dielectric loss angle tangent (dielectrictangent) is lower, therefore, loss is inhibited.In addition, the temperature dependency of dielectric loss angle tangent is lower, thus can suppress the characteristic variations that environmental change causes.Above-mentioned various conductive pattern obtains by carrying out patterning to the Copper Foil being pasted on above-mentioned insulator sheet material.Above-mentioned stacked insulator 10 is by folding above-mentioned multiple sheet insulators sheet material layers and carry out heating crimping to be formed.
1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 parallel, along long side direction (shown in Fig. 1 towards in left and right directions) extend configuration.1st signal conductor pattern 31 is configured in the layer between top the 1st earthing conductor drafting department 21 and bottom the 1st earthing conductor drafting department 22, and the 2nd signal conductor pattern 32 is configured in the layer between top the 2nd earthing conductor drafting department 23 and bottom the 2nd earthing conductor drafting department 24.
According to said structure, utilize top the 1st earthing conductor drafting department 21, bottom the 1st earthing conductor drafting department 22 and the 1st signal conductor pattern 31 to form the 1st transmission line portion WG1, utilize top the 2nd earthing conductor drafting department 23, bottom the 2nd earthing conductor drafting department 24 and the 2nd signal conductor pattern 32 to form the 2nd transmission line portion WG2.In addition, if the component beyond conductor is also included, then also become the inscape in the 1st transmission line portion as the insulator layer 12,13,14 of dielectric and supporting course together with the 1st signal conductor pattern 31, top the 1st earthing conductor drafting department 21 and bottom the 1st earthing conductor drafting department 22.Equally, also become the inscape in the 2nd transmission line portion together with the 2nd signal conductor pattern 32, top the 2nd earthing conductor drafting department 23 and bottom the 2nd earthing conductor drafting department 24 as the insulator layer 12,13,14 of dielectric and supporting course.
The interval of the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 also can not be fixed, if the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 parallel.That is, the 1st signal conductor pattern 31 configures along the 2nd signal conductor pattern 32 extension.
The 1st emptying aperture H1 is formed between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32.The relative dielectric constant of the 1st emptying aperture H1 (air) is lower than the relative dielectric constant of insulator layer 12 ~ 15.Therefore, even if make the interval of the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 narrower, also can guarantee the isolation specified, therefore, the width of transmission line entirety can be reduced.
In addition, in present embodiment, top earthing conductor pattern (21,23) is separated, and lower ground conductive pattern (22,24) is separated, and therefore, the crosstalk via the feedback current flowing through earthing conductor pattern is inhibited.
Fig. 3 is the stereoscopic figure of the flat cable 201 of execution mode 1.Flat cable 201 comprises transmission line 101 and is loaded into coaxial connector 61A, 61B, 62A, 62B of this transmission line 101.Transmission line 101 comprises the 1st transmission line portion and the 2nd transmission line portion.The long side direction of transmission line 101 is the transmission direction of high-frequency signal.The two ends in the 1st transmission line portion are provided with coaxial connector 61A, 61B, the two ends in the 2nd transmission line portion are provided with coaxial connector 62A, 62B.
Fig. 4 is the partial top view of the various conductive patterns representing each insulator layer included by transmission line 101 and be formed at each insulator layer.Be formed with coaxial connector loading inner wire pattern 41 at insulator layer 12,13,14, be formed with coaxial connector loading inner wire pattern 42 at insulator layer 12,13,14.Coaxial connector loading outer conductor pattern 51,52 is formed respectively at insulator layer 12,13.
Top the 1st earthing conductor drafting department 21 and top the 2nd earthing conductor drafting department 23 is formed respectively at insulator layer 12, be formed with the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 respectively at insulator layer 14, be formed with bottom the 1st earthing conductor drafting department 22 and bottom the 2nd earthing conductor drafting department 24 respectively at insulator layer 15.
Be formed at the coaxial connector loading inner wire pattern 41 of each insulator layer respectively via interlayer connection conductor VS1 conducting, coaxial connector loading with inner wire pattern 42 respectively via interlayer connection conductor VS2 conducting.In addition, coaxial connector loading with outer conductor pattern 51 respectively via interlayer connection conductor VG1 conducting, coaxial connector loading with outer conductor pattern 52 respectively via interlayer connection conductor VG2 conducting.Coaxial connector 61A (with reference to Fig. 3) is loaded into coaxial connector loading inner wire pattern 41 and coaxial connector loading outer conductor pattern 51, and carries out electricity joint.In addition, coaxial connector 62A is loaded into coaxial connector loading inner wire pattern 42 and coaxial connector loading outer conductor pattern 52, and carries out electricity joint.In Fig. 4, illustrate the substantial half region of transmission line 101, but the structure in remaining half region is also identical.
By by stacked for the insulator layer 12 ~ 15 being formed with above-mentioned various conductive pattern and carry out heating crimping, thus form there is the stacked insulator 10 of the cross section structure shown in Fig. 2.
Load coaxial connector by the coaxial connector loading part at stacked insulator 10, thus form flexible flat cable 201.
Like this, the crosstalk of the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 can be suppressed, and reduce the width of transmission line entirety.
Fig. 5 (A) is the cutaway view of the mobile electronic device of the installment state of the ffc 201 representing present embodiment, and 5 (B) are the vertical views of the enclosure interior of this mobile electronic device.
Mobile electronic device 1 comprises slim housing 2.Circuit substrate 3A, 3B and battery pack 4 etc. is configured with in housing 2.Multiple IC5 and SMD components 6 are installed on the surface of circuit substrate 3A, 3B.Circuit substrate 3A, 3B and battery pack 4 are arranged at housing 2, make when overlooking housing 2, and battery pack 4 is configured between circuit substrate 3A, 3B.Formed thin as far as possible owing to making housing 2, therefore on the thickness direction of housing 2, the interval of battery pack 4 and housing 2 is extremely narrow.Therefore, common coaxial cable cannot be configured in centre.
The flat cable 201 of present embodiment owing to being configured to make its thickness direction consistent with the thickness direction of housing 2, thus can make flat cable 201 by between battery pack 4 and housing 2.Thereby, it is possible to utilize flat cable 201 that intermediate configurations is had battery pack 4 thus circuit substrate 3A, 3B of separating couple together.
In addition, also be applicable to following situation: flat cable 201 be connected to the link position of circuit substrate 3A, 3B and flat cable 201 different on the thickness direction of housing 2 relative to the installation surface of battery pack 4, thus flat cable 201 must be made to bend the situation carrying out connecting.
In addition, flat cable 201 is less in the direction of the width, therefore, also easy by parallel for plurality of transmission lines setting.
" execution mode 2 "
Fig. 6 (A) is the exploded perspective view of the formation midway of the transmission line of execution mode 2, and Fig. 6 (B) is the stereogram of the formation midway of transmission line.Fig. 6 (C) is the stereogram of transmission line 102.Fig. 7 is the cutaway view of transmission line 102 on the face vertical with signal transmission direction.
Transmission line 102 comprises the stacked insulator 10 that stacked multiple insulator layer 12,13,14,15 obtains and the various conductive patterns configured along insulator layer 12 ~ 15 in the inside of this stacked insulator 10.
Different from execution mode 1, in present embodiment, for emptying aperture H, between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32, be not only formed with emptying aperture (the 1st emptying aperture H1), also between top the 1st earthing conductor drafting department 21 and top the 2nd earthing conductor drafting department 23 and between bottom the 1st earthing conductor drafting department 22 and bottom the 2nd earthing conductor drafting department 24, be formed with the 2nd emptying aperture H2.
In addition, different from execution mode 1, in present embodiment, the 1st emptying aperture H1 is connected with the 2nd emptying aperture H2, and the bearing of trend along the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 is configured with multiple.That is, emptying aperture is not continual in signal transmission direction, but is configured with multiple at predetermined intervals.
The transmission line 102 of present embodiment forms according to following steps manufacture.
(1) as shown in Fig. 6 (A), insulator layer 13, the insulator layer 12,14,15 of conductive pattern that is formed with regulation are respectively carried out stacked.
(2) as shown in Fig. 6 (B), by carrying out integration to this duplexer heating pressurization.
(3) as shown in Fig. 6 (C), utilize laser beam machining appts, form emptying aperture H (through hole of slit-shaped) at duplexer.
Structure shown in other structure with execution mode 1 is identical.
According to the present embodiment, by the 1st earthing conductor drafting department and the 2nd earthing conductor pattern part from, and form the 2nd emptying aperture between the 1st earthing conductor drafting department and the 2nd earthing conductor drafting department, thus be inhibited via the coupling of earthing conductor pattern (the 1st earthing conductor drafting department and the 2nd earthing conductor drafting department).In addition, compared with forming the situation of continuous print slit, not only can keep mechanical strength but also easily bend.
In addition, if make larger emptying aperture H elongated along long side direction, then the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 can clip the part independent deformation of emptying aperture H, therefore, the 1st transmission line portion WG1 such as can be made to be out of shape upward, 2nd transmission line portion WG2 is out of shape downwards, makes to broaden to install between transmission line portion.In addition, thus, the crosstalk of the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 can be suppressed further.
" execution mode 3 "
Fig. 8 (A) is the exploded perspective view of the transmission line 103 of execution mode 3, and Fig. 8 (B) is the stereogram of transmission line 103.Fig. 9 (A) is the cutaway view of the A-A part in Fig. 8 (B), and Fig. 9 (B) is the cutaway view of the B-B part in Fig. 8 (B).
In present embodiment, utilize the 1st interlayer connection conductor VG1 to make top the 1st earthing conductor drafting department 21 and bottom the 1st earthing conductor drafting department 22 conducting, utilize the 2nd interlayer connection conductor VG2 to make top the 2nd earthing conductor drafting department 23 and bottom the 2nd earthing conductor drafting department 24 conducting.Structure shown in other structure with execution mode 2 is identical.
According to the present embodiment, top earthing conductor pattern (21,23), lower ground conductive pattern (22,24) are all separated, and therefore, respective earthing conductor pattern is small size.But by arranging the 1st interlayer connection conductor VG1, the current potential of top the 1st earthing conductor drafting department 21 and bottom the 1st earthing conductor drafting department 22 becomes stable.Equally, by arranging the 2nd interlayer connection conductor VG2, the current potential of top the 2nd earthing conductor drafting department 23 and bottom the 2nd earthing conductor drafting department 24 becomes stable.In addition, owing to there is multiple interlayer connection conductor VG1, VG2 between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32, therefore, utilize the electromagnetic-field-shielded effect of these interlayer connection conductor VG1, VG2, the isolation of the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 can be guaranteed further.
" execution mode 4 "
Figure 10 is the stereogram of the transmission line 104 of execution mode 4, and Figure 11 is the vertical view of transmission line 104.Figure 12 (A) is the cutaway view of the A-A part in Figure 10, and Figure 12 (B) is the cutaway view of the B-B part in Figure 10.
In present embodiment, when stacked direction along insulator layer observes (overlooking), between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32, be not formed with the region of emptying aperture H, there is the 1st protuberance PP1 that the 1st earthing conductor drafting department 21 and bottom the 1st earthing conductor drafting department 22 are outstanding respectively from top.Equally, between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32, be not formed with the region of emptying aperture H, there is the 2nd protuberance PP2 that the 2nd earthing conductor drafting department 23 and bottom the 2nd earthing conductor drafting department 24 are outstanding respectively from top.
The 1st upper and lower protuberance PP1 is connected by the 1st interlayer connection conductor VG1, and the 2nd upper and lower protuberance PP2 is connected by the 2nd interlayer connection conductor VG2.1st protuberance PP1 and the 2nd protuberance PP2 alternately configures along the bearing of trend of the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32.Structure shown in other structure with execution mode 2 is identical.
According to the present embodiment, following effect can be played.
A () configures interlayer connection conductor VG1, VG2 and does not expand the width of transmission line entirety.
B () protuberance PP1, PP2 are configured at the inside of transmission line but not sidepiece, therefore, can suppress from protuberance and the unnecessary radiation of interlayer connection conductor being formed at protuberance.
C () the 1st interlayer connection conductor VG1 is adjacent via emptying aperture with the 2nd interlayer connection conductor VG2, therefore, unnecessary being coupled between the 1st interlayer connection conductor VG1 with the 2nd interlayer connection conductor VG2 is inhibited.
" execution mode 5 "
Figure 13 is the exploded perspective view of the transmission line 105 of execution mode 5.Figure 14 (A) is the cutaway view of the A-A part in Figure 13, Figure 14 (B) is the cutaway view of the B-B part in Figure 13, Figure 14 (C) is the cutaway view of the C-C part in Figure 13, and Figure 14 (D) is the cutaway view of the D-D part in Figure 13.
In present embodiment, be formed with the 1st signal conductor pattern 31, the 2nd signal conductor pattern 32 and the 1st emptying aperture H1 at insulator layer 14.The 2nd emptying aperture H2 is formed respectively at insulator layer 12,16.1st emptying aperture H1 and the 2nd emptying aperture H2 alternately configures along the bearing of trend of the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32.
Be formed with grounding connection conductor GL11, GL21 at insulator layer 13, be formed with grounding connection conductor GL12, GL22 at insulator layer 15.
Be formed with the interlayer connection conductor VG1 that the 1st protuberance PP1 on top and grounding connection conductor GL11 to be carried out being connected respectively at insulator layer 12 and the 2nd protuberance PP2 on top and grounding connection conductor GL21 carried out the interlayer connection conductor VG2 that is connected.
Be formed respectively and the interlayer connection conductor VG3 of grounding connection conductor GL11 conducting and the interlayer connection conductor VG4 that is connected with grounding connection conductor GL21 at insulator layer 13.
Be formed respectively and the interlayer connection conductor VG5 of interlayer connection conductor VG3 conducting and the interlayer connection conductor VG6 that is connected with interlayer connection conductor VG4 at insulator layer 14.
Be formed with the interlayer connection conductor VG7 that the 1st protuberance PP1 of bottom and grounding connection conductor GL12 to be carried out being connected respectively at insulator layer 15 and the 2nd protuberance PP2 of bottom and grounding connection conductor GL22 carried out the interlayer connection conductor VG8 that is connected.
According to said structure, via interlayer connection conductor VG1, VG3, VG5, VG7 and grounding connection conductor GL11, GL12, top the 1st earthing conductor drafting department 21 is connected with bottom the 1st earthing conductor drafting department 22.Equally, via interlayer connection conductor VG2, VG4, VG6, VG8 and grounding connection conductor GL21, GL22, top the 2nd earthing conductor drafting department 23 is connected with bottom the 2nd earthing conductor drafting department 24.
According to the present embodiment, due to by the 1st emptying aperture H1 and the 2nd emptying aperture H2 decentralized configuration, therefore, the destruction that not easily to produce with these emptying apertures H1, H2 be basic point.In addition, when transmission line bends, the broken string of interlayer connection conductor is not easily produced.
" execution mode 6 "
In execution mode 6, signal conductor pattern short transverse position in cross section and the surface roughness of signal conductor pattern are shown especially.
Figure 15 (A) is the view sub-anatomy of the transmission line 106 of execution mode 6, and Figure 15 (B) is the cutaway view of transmission line 106.In arbitrary figure, all as shown in the cutaway view that do not occur the position of emptying aperture and Figure 15 (A), top earthing conductor pattern 21 is formed at the upper surface of the 1st insulator layer 12, lower ground conductive pattern 22 is formed at the lower surface of the 4th insulator layer 15, be formed with the 1st signal conductor pattern 31 at the upper surface of the 2nd insulator layer 13, be formed with the 2nd signal conductor pattern 32 at the lower surface of the 3rd insulator layer 14.Therefore, the 1st signal conductor pattern 31 offsets near top earthing conductor pattern 21, skew near the 2nd signal conductor pattern 32 lower portion earthing conductor pattern 22.
In 1st signal conductor pattern 31, the surface roughness in the face relative with top earthing conductor pattern 21 is less than the surface roughness in the face relative with lower ground conductive pattern 22.In 2nd signal conductor pattern 32, the surface roughness in the face relative with lower ground conductive pattern 22 is less than the surface roughness in the face relative with top earthing conductor pattern 21.That is, the wet look of the 1st signal conductor pattern 31 is relative with top earthing conductor drafting department 21, and the wet look of the 2nd signal conductor pattern 32 is relative with lower ground conductive pattern 22.
Due to electromagnetic field narrow when the interval of signal conductor pattern and earthing conductor pattern is wider time to concentrate, therefore, according to said structure, concentrating of the electromagnetic field intensity in the thicker face of surface roughness can be relaxed.Consequently, the conductor losses of signal conductor pattern and the conductor losses of earthing conductor pattern reduce, and the loss of transmission line WG1, WG2 reduces.
In addition, the space interval between the 1st signal conductor pattern 31 and the 2nd signal conductor pattern 32 broadens, and need not expand the width of transmission line entirety, and the isolation of the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 is improved.
In addition, in 1st signal conductor pattern 31, thicker the 2nd (matsurface) of surface roughness is carried by the 2nd insulator layer 13, in 2nd signal conductor pattern 32, the thicker face of surface roughness is carried by the 3rd insulator layer 14, therefore, can carry out stacked with the state that the bond strength of insulator layer and Copper Foil is higher.Equally, in top earthing conductor pattern 21, the thicker face of surface roughness is carried by the 1st insulator layer 12, in lower ground conductive pattern 22, the thicker face of surface roughness is carried by the 3rd insulator layer 14, therefore, can carry out stacked with the state that the bond strength of insulator layer and Copper Foil is higher.Therefore, when insulator layer is stacked, cable bend time signal conductor pattern position skew less, position can be suppressed to offset the characteristic variations brought.
In above shown each execution mode, for both top earthing conductor pattern and lower ground conductive pattern, show the example being separated into the 1st earthing conductor drafting department along the 1st signal conductor pattern and the 2nd earthing conductor drafting department along the 2nd signal conductor pattern, but can as Embodiment 6, not make top earthing conductor pattern and lower ground conductive pattern be separated and make it be used for the 1st transmission line portion WG1 and the 2nd transmission line portion WG2 yet.
In addition, the dependency structure of the dependency structure of above-mentioned signal conductor pattern short transverse position in cross section and the surface roughness of signal conductor pattern is also applicable to the transmission line not having the 1st emptying aperture H1, the 2nd emptying aperture H2, has same effect.
" execution mode 7 "
In execution mode 7, the surface roughness of signal conductor pattern and earthing conductor pattern is shown especially.
Figure 16 is the view sub-anatomy of the transmission line 107 of execution mode 7.
As shown in figure 16, top earthing conductor pattern 21 is formed at the lower surface of the 1st insulator layer 11, lower ground conductive pattern 22 is formed at the upper surface of the 6th insulator layer 16, be formed with the 1st signal conductor pattern 31 at the upper surface of the 3rd insulator layer 13, be formed with the 2nd signal conductor pattern 32 at the lower surface of the 4th insulator layer 14.Therefore, the 1st signal conductor pattern 31 offsets near top earthing conductor pattern 21, skew near the 2nd signal conductor pattern 32 lower portion earthing conductor pattern 22.
The wet look of top earthing conductor pattern 21 is towards the 1st signal conductor pattern 31 side, and the wet look of lower ground conductive pattern 22 is towards the 2nd signal conductor pattern 32 side.
According to said structure, not only for signal conductor pattern, concentrating of the electromagnetic field intensity at the thicker face place of surface roughness also can be avoided for earthing conductor pattern.Consequently, the conductor losses of earthing conductor pattern reduces, and the loss of transmission line WG1, WG2 reduces.
In addition, the dependency structure of the surface roughness of above-mentioned signal conductor pattern and earthing conductor pattern is also applicable to the transmission line not having the 1st emptying aperture H1, the 2nd emptying aperture H2, has same effect.
" other execution mode "
In each execution mode above, for both top earthing conductor pattern and lower ground conductive pattern, show the example being separated into the 1st earthing conductor drafting department along the 1st signal conductor pattern and the 2nd earthing conductor drafting department along the 2nd signal conductor pattern, and top earthing conductor pattern and lower ground conductive pattern are not all separated and are used for the example in the 1st transmission line portion and the 2nd transmission line portion, but also can be set to and the side in top earthing conductor pattern and lower ground conductive pattern is separated into the 1st earthing conductor drafting department along the 1st signal conductor pattern and the 2nd earthing conductor drafting department along the 2nd signal conductor pattern.
In above shown several execution modes, show between top the 1st earthing conductor drafting department and top the 2nd earthing conductor drafting department, between bottom the 1st earthing conductor drafting department and bottom the 2nd earthing conductor drafting department, form the example of the 2nd emptying aperture H2 respectively, but also can square one-tenth a 2nd emptying aperture H2 only in upper and lower.
Finally, all the elements of the explanation of above-mentioned execution mode are citing and represent, instead of restrictive.To those skilled in the art, can suitably carry out being out of shape and changing.Such as, local displacement or the combination of the structure shown in different execution mode can be carried out.Scope of the present utility model is represented by the scope of claim, and is not represented by above-mentioned execution mode.And scope of the present utility model also comprises all changes in the meaning and scope that are equal to the scope of claim.
Label declaration
GL11, GL12, GL21, GL22 grounding connection conductor
H emptying aperture
H1 the 1st emptying aperture
H2 the 2nd emptying aperture
PP1 the 1st protuberance
PP2 the 2nd protuberance
VG1 ~ VG8 interlayer connection conductor
VS1, VS2 interlayer connection conductor
WG1 the 1st transmission line portion
WG2 the 2nd transmission line portion
2 housings
3A, 3B circuit substrate
4 battery pack
5IC
6 SMD components
10 stacked insulators
11 ~ 16 insulator layers
21 tops the 1st earthing conductor drafting department, top earthing conductor pattern
22 bottoms the 1st earthing conductor drafting department, lower ground conductive pattern
23 tops the 2nd earthing conductor drafting department
24 bottoms the 2nd earthing conductor drafting department
31 the 1st signal conductor patterns
32 the 2nd signal conductor patterns
41,42,51,52 coaxial connectors load and use outer conductor pattern
61A, 61B, 62A, 62B coaxial connector
101 ~ 107 transmission lines
201 flat cables
Claims (14)
1. a transmission line, is characterized in that, comprising:
Stacked multiple insulator layer and the stacked insulator obtained; And
At the conductive pattern that the inside of described stacked insulator configures along described insulator layer,
Described conductive pattern comprises top earthing conductor pattern, lower ground conductive pattern, the 1st signal conductor pattern with parallel part and the 2nd signal conductor pattern,
Described top earthing conductor pattern and described lower ground conductive pattern are in a part for described parallel section, and the stacked direction along described insulator layer clamps described 1st signal conductor pattern and described 2nd signal conductor pattern,
Also be included in the 1st emptying aperture formed between described 1st signal conductor pattern and described 2nd signal conductor pattern.
2. transmission line as claimed in claim 1, is characterized in that,
Bearing of trend along described 1st signal conductor pattern and described 2nd signal conductor pattern is configured with multiple described 1st emptying aperture.
3. transmission line as claimed in claim 1 or 2, is characterized in that,
At least one party in described top earthing conductor pattern and described lower ground conductive pattern is separated into along the 1st earthing conductor drafting department of described 1st signal conductor pattern and the 2nd earthing conductor drafting department along described 2nd signal conductor pattern,
The 2nd emptying aperture is formed between described 1st earthing conductor drafting department and described 2nd earthing conductor drafting department.
4. transmission line as claimed in claim 3, is characterized in that,
Bearing of trend along described 1st signal conductor pattern and described 2nd signal conductor pattern is configured with multiple described 2nd emptying aperture.
5. transmission line as claimed in claim 3, is characterized in that,
Described 1st emptying aperture and described 2nd emptying aperture are continuous print.
6. transmission line as claimed in claim 3, is characterized in that,
When stacked direction along described insulator layer is observed, described 1st earthing conductor drafting department or described 2nd earthing conductor drafting department are between described 1st signal conductor pattern and described 2nd signal conductor pattern and the region not being formed with described 2nd emptying aperture has outstanding protuberance
Also comprise interlayer connection conductor, this interlayer connection conductor is formed at described protuberance, is connected with described lower ground conductive pattern described top earthing conductor pattern.
7. transmission line as claimed in claim 6, is characterized in that,
In described protuberance, the 1st protuberance given prominence to from described 1st earthing conductor drafting department and the 2nd protuberance given prominence to from described 2nd earthing conductor drafting department are along the bearing of trend alternately configuration of described 1st signal conductor pattern and described 2nd signal conductor pattern.
8. transmission line as claimed in claim 1, is characterized in that,
Comprise interlayer connection conductor, this interlayer connection conductor is when observing along the stacked direction of described insulator layer, by between described 1st signal conductor pattern and described 2nd signal conductor pattern, described top earthing conductor pattern is connected with described lower ground conductive pattern.
9. transmission line as claimed in claim 1, is characterized in that,
Described 1st signal conductor pattern offsets near the earthing conductor pattern of described top, described 2nd signal conductor pattern offsets near described lower ground conductive pattern, and described 1st signal conductor pattern and described 2nd signal conductor pattern are formed at different insulator layers.
10. transmission line as claimed in claim 9, is characterized in that,
In described 1st signal conductor pattern, the surface roughness in the face relative with described top earthing conductor pattern is less than the surface roughness in the face relative with described lower ground conductive pattern,
In described 2nd signal conductor pattern, the surface roughness in the face relative with described lower ground conductive pattern is less than the surface roughness in the face relative with described top earthing conductor pattern.
11. transmission lines as described in claim 9 or 10, is characterized in that,
The surface roughness in the face relative with described 1st signal conductor pattern of described top earthing conductor pattern is less than opposing face,
The surface roughness in the face relative with described 2nd signal conductor pattern of described lower ground conductive pattern is less than opposing face.
12. transmission lines as claimed in claim 10, is characterized in that,
In described 1st signal conductor pattern, the face that surface roughness is larger is carried by insulator layer, and in described 2nd signal conductor pattern, the face that surface roughness is larger is carried by insulator layer.
13. transmission lines as claimed in claim 10, is characterized in that,
In the earthing conductor pattern of described top, the face that surface roughness is larger is carried by insulator layer, and in described lower ground conductive pattern, the face that surface roughness is larger is carried by insulator layer.
14. 1 kinds of flat cables, is characterized in that,
Be made up of transmission line and the connector that is connected with described transmission line,
The transmission line of described transmission line according to any one of claim 1 to 13,
Described connector device is loaded in the stacked insulator of described transmission line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014223837A JP2016092561A (en) | 2014-11-01 | 2014-11-01 | Transmission line and flat cable |
| JP2014-223837 | 2014-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081202U true CN205081202U (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520857282.7U Active CN205081202U (en) | 2014-11-01 | 2015-10-29 | Transmission line and flat cable |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016092561A (en) |
| CN (1) | CN205081202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111557127A (en) * | 2018-01-30 | 2020-08-18 | 株式会社村田制作所 | Multilayer substrate and antenna element |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018074269A (en) | 2016-10-26 | 2018-05-10 | 矢崎総業株式会社 | Transmission line |
| JP6655577B2 (en) | 2017-04-03 | 2020-02-26 | 矢崎総業株式会社 | Transmission line and manufacturing method thereof |
| CN215647529U (en) | 2018-06-07 | 2022-01-25 | 株式会社村田制作所 | Multilayer substrate and electronic device |
| JP6850501B1 (en) * | 2019-11-22 | 2021-03-31 | 天竜精機株式会社 | Transmission line |
| EP4328936A1 (en) | 2021-04-19 | 2024-02-28 | Yamaichi Electronics Co., Ltd. | High-frequency signal transmission device and high-frequency signal transmission cable |
-
2014
- 2014-11-01 JP JP2014223837A patent/JP2016092561A/en active Pending
-
2015
- 2015-10-29 CN CN201520857282.7U patent/CN205081202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111557127A (en) * | 2018-01-30 | 2020-08-18 | 株式会社村田制作所 | Multilayer substrate and antenna element |
| CN111557127B (en) * | 2018-01-30 | 2022-12-16 | 株式会社村田制作所 | Multilayer substrate and antenna element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016092561A (en) | 2016-05-23 |
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