CN201369377Y - Phase shifter module based on medium loading - Google Patents
Phase shifter module based on medium loading Download PDFInfo
- Publication number
- CN201369377Y CN201369377Y CNU2009200513717U CN200920051371U CN201369377Y CN 201369377 Y CN201369377 Y CN 201369377Y CN U2009200513717 U CNU2009200513717 U CN U2009200513717U CN 200920051371 U CN200920051371 U CN 200920051371U CN 201369377 Y CN201369377 Y CN 201369377Y
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- medium
- dieelctric sheet
- phase shifter
- shifter module
- loads based
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Abstract
The utility model relates to the field of mobile communication base station antennas, in particular to a phase shifter applied to an electric tuning base station antenna. The utility model discloses a phase shifter module for medium loading, which comprises a transmission line structure, such as a strip-shaped line or a microstrip line, with air as a transmission medium, and the TEM mode or quasi-TEM mode as the basic transmission mode, and is characterized in that at least a movable medium piece is arranged between transmission lines, wherein, in the case of the strip-shaped structure, a gap is further formed on the medium piece for accommodating a strip-shaped line, the transmission line conducts displacement relative to the medium piece as the medium piece moves, and phase delay is altered by changing the superposition area of the medium piece and the transmission line, thereby realizing phase shift of signals. When the phase shifter works, the medium piece moves along a direction vertical to the direction of energy transfer. The use of low-loss medium materials endows the phase shifter with the advantages of low insertion loss, less spurious radiation, large phase shift, small size, low cost and linear relationship between the phase shift and the displacement of the medium piece. Moreover, due to the modularization design, flexible layout and diversified phase shift and feed network design can be realized by coaxial line connection.
Description
Technical field:
The utility model relates to the antenna of mobile communication base station field, relates in particular to a kind of phase shifter module that is applied to the base station electrical tilt antenna.
Background technology:
Phase shifter is the core component of base station electrical tilt antenna, existing phase shifter design, and the following dual mode of general employing: one, change the electrical length of the interior signal of phase shifter by the path.As the patent No. is that the ZL200520065549.5 and the patent No. are the phase shifter of the described phase place continuous variable of patent documentation of ZL 200520121325.1, all is by changing the relative contact length of copper (aluminium) pipe box, changing the electrical length by the path.This method is in order to reduce resistance to sliding and to guarantee lower passive intermodulation product, often need to realize the transmission of signal energy by coupled modes, the pipe box length of coupled section generally can not be too short, and when the big amount of phase shift of needs, the shift length of copper (aluminium) pipe box needs very long, therefore makes that the volume of phase shifter is also bigger.The described phase shifter of the patent documentation of patent ZL 00802132.5 and for example, there are two sections concentric tape conductor circular arcs at least in it, by the rotation of input arm, changes the path difference of isocentric circular arc two output end signals, produces phase difference then.Volume is big, cost is high and amplitude is controlled problems such as difficulty but this design exists.
Second kind of design is the dieelctric sheet loading method, is ZL 200520063505.9 and the described base station of ZL200620053705.0 Chinese patent literature electrical tilt antenna phase shifter as the patent No., adopted the loading of dieelctric sheet to air dielectric.Change amount of phase shift by the insertion degree that changes dieelctric sheet, but adopted the dieelctric sheet design of simple shape in this design, can't guarantee the linear relationship of amount of phase shift and medium amount of phase shift, this design also is difficult to guarantee good standing wave under big amount of phase shift; And this design is integrated with power division network, compares with the phase shifter module that the utility model is proposed, and cost is higher, and the layout flexibility ratio is not enough.
Summary of the invention:
The purpose of this utility model has been to provide that linearity performance is good between phase-shift phase and medium slippage, amount of phase shift is big, layout is convenient, volume is small and exquisite and lower-cost a kind of phase shifter module that loads based on medium.
For achieving the above object; the technical solution adopted in the utility model is: a kind of phase shifter module that loads based on medium; with the air is transmission medium; basic transmission mode is the transmission line structure of TEM mould or accurate TEM mould; as strip line or microstrip line; with the strip line is example; its structure comprises upper cover plate; lower shoe and air strip line therebetween; it is characterized in that: also comprise being arranged on; at least one movable dieelctric sheet between the lower shoe; described dieelctric sheet has the slit and inserts for strip line; and with the slip of dieelctric sheet, the air strip line is along slit and dieelctric sheet intercropping relative displacement.
Above-mentioned dieelctric sheet slit inwall is close to strip line, slides along the direction vertical with strip line, and each dieelctric sheet area is done the variation of ladder along glide direction, and the area of dieelctric sheet diminishes gradually with direction of insertion.
Above-mentioned a kind of phase shifter module that loads based on medium is characterized in that: the stopping means that also is provided with restriction dieelctric sheet sliding stroke.
Above-mentioned a kind of phase shifter module that loads based on medium, it is characterized in that: described stopping means is chute that is provided with on upper cover plate or the lower shoe and the leading post that is arranged on dieelctric sheet, during installation, this leading post inserts in the chute and can slide along chute.
Above-mentioned a kind of phase shifter module that loads based on medium, it is characterized in that: dieelctric sheet is connected with pull bar, is used for the manipulation medium sheet.
Above-mentioned a kind of phase shifter module that loads based on medium, it is characterized in that: dieelctric sheet is selected the material of high-k, low-loss tangent angle for use.
Above-mentioned a kind of medium loads phase shifter, it is characterized in that: described dieelctric sheet has three, along side signal transmission to, these three dieelctric sheets are one-body molded or adopt plastic structural part to connect, dieelctric sheet area in the middle of being positioned at is bigger, both sides dieelctric sheet area is less, and each dieelctric sheet area is done the variation of ladder, overall structure left-right symmetric along traffic direction.The distance of regulating between both sides dieelctric sheet and the intermediate medium sheet realizes impedance matching, three arms are all increasing in shape gradually, but not that continuous linearity increases, but approaching linear increase of segmentation, this makes that can to keep amount of phase shift Δ θ and dieelctric sheet displacement d when dieelctric sheet moves linear, promptly
Δθ＝κd (1)
Wherein κ is a constant.(1) the expressed linear relationship of formula will be convenient to the adjusting that the electrical remote control mode realizes Downtilt.Phase shifter design of the present utility model can realize that Δ θ is the phase shift of 60 degree～120 degree, has realized obtaining under less size bigger amount of phase shift.
The utility model has the advantages that:
1, the utility model medium sheet and basic transmission mode are that the air transfer toe-in of TEM mould or accurate TEM mould closes use; dieelctric sheet is inserted into electric field density district between transmission line; change phase delay by changing dieelctric sheet with the area that overlaps of transmission line, thereby realize phase shift.During phase shifter work, dieelctric sheet slides along the direction vertical with transmission line.
2, the utility model adopts air to do dieelctric sheet in conjunction with the material of low-loss tangent angle, so the insertion loss of this phase shifter module is very low.
3, the utility model medium sheet moves along the vertical direction of strip line, makes that the longitudinal size of phase shifter is less.
4, the utility model has adopted modularized design, and cost is low, and layout is flexible.
Such scheme is applicable to that all transmission modes are the air transfer line of TEM mould or accurate TEM mould, as strip line and microstrip line structure commonly used.
Description of drawings
Fig. 1 is the schematic diagram of the utility model dielectric phase shifter specific embodiment;
Fig. 2 is the structural representation of the utility model dielectric phase shifter specific embodiment;
Initial condition 0 actual measurement standing wave pattern among Fig. 3 the utility model embodiment;
Initial condition 0 actual measurement phase diagram among Fig. 4 the utility model embodiment;
Embodiment:
Embodiment one:
In conjunction with Fig. 1 and Fig. 2, adopt strip lines configuration in the utility model specific embodiment, phase shifter module comprises that strip lines configuration, three dieelctric sheets 4, manipulation medium sheets move pull bar 5 and cable welding base 6.Wherein strip lines configuration comprises upper cover plate 1, lower shoe 2 and strip line 3; Strip line is an air between upper cover plate and lower shoe therebetween, constitutes the air strip line; Dieelctric sheet 4 has slit 6, has guaranteed that dieelctric sheet 4 closely is connected with strip line 3 when sliding.Dieelctric sheet 4, one-body molded or adopt plastic structural part to connect, the dieelctric sheet area in the middle of being positioned at is bigger, and both sides dieelctric sheet area is less, and each dieelctric sheet area is made the variation of ladder and left-right symmetric along traffic direction.The distance of regulating between both sides dieelctric sheet and the intermediate medium sheet realizes impedance matching, and, three arms are all increasing in shape gradually, but not that continuous linearity increases, but approaching linear increase of segmentation, this makes that can to keep amount of phase shift and dieelctric sheet displacement when dieelctric sheet moves linear, and convenient antenna is regulated angle of declination.
The utility model also is provided with the stopping means of restriction dieelctric sheet sliding stroke.Described stopping means is chute 8 that is provided with on upper cover plate or the lower shoe and the leading post 9 that is arranged on dieelctric sheet, and during installation, this leading post inserts in the chute and can slide along chute.
Phase shifter in the utility model can be realized the phase shift of 60～120 degree, realizes bigger amount of phase shift under less size.The live width of strip line is relevant with spacing and the transmission medium between strip lines configuration between antenna characteristics impedance, strip line and the upper and lower bottom plate.Dieelctric sheet moves between strip line and upper and lower bottom plate along the vertical line direction A of strip line, when between dieelctric sheet and the strip line overlap area change the time, equivalent transmission medium between strip line and the upper and lower plates has just changed, and such variation has just caused the change of transmission signal phase on strip line.
The size of amount of phase shift is relevant with the material of dieelctric sheet usually, and the utility model can be chosen ceramic dielectric, and its dielectric constant is higher, and the getable amount of phase shift of institute is also bigger.Distance design between three arms of described dieelctric sheet mainly is the impedance matching for regulating networks.
In conjunction with Fig. 1 and Fig. 2, choose type testing presentation of results the utility model excellent performance part:
1. when dieelctric sheet enters strip lines configuration 1mm, be set at initial condition 0, calibrate phase place this moment, at this moment standing-wave ratio and phase place such as Fig. 3,4.
2. when dieelctric sheet enters 6mm, be set at state 1, this moment, standing-wave ratio and phase diagram thereof were shown in Fig. 5,6.
3. when dieelctric sheet enters 11mm, be set at state 2, this moment, standing-wave ratio and phase diagram thereof were shown in Fig. 7,8.
It is initial condition that above-mentioned description taken in conjunction picture has mainly embodied when dieelctric sheet enters 1mm, and phase shift 0 degree enters 6mm phase shift 30 degree, enters 11mm phase shift 60 degree.Present embodiment has illustrated the Phasing that dieelctric sheet causes when moving effectively.Can see that the utility model provides a kind of volume small and exquisite and have a variable phase shifter module of wide phase shift range.
Embodiment two:
Such scheme is applicable to microstrip line construction, because microstrip line construction do not have upper cover plate, different with embodiment one is: open on lower shoe as the chute of one of stopping means building block, insert for the leading post that is arranged on dieelctric sheet; The optional slit of unraveling of dieelctric sheet, and be located immediately between microstrip line and the lower shoe.
Claims (18)
1, a kind of phase shifter module that loads based on medium, comprise strip lines configuration, described strip lines configuration comprises upper cover plate, lower shoe and air strip line therebetween, it is characterized in that: also comprise being arranged at least one movable dieelctric sheet between upper cover plate, the lower shoe, described dieelctric sheet has the slit and inserts for strip line, and with the moving of dieelctric sheet, the air strip line is done relative displacement along slit and dieelctric sheet.
2, a kind of phase shifter module that loads based on medium as claimed in claim 1, it is characterized in that: described dieelctric sheet slit inwall is close to strip line, slides along the direction vertical with strip line.
3, a kind of phase shifter module that loads based on medium as claimed in claim 1 is characterized in that: the stopping means that also is provided with restriction dieelctric sheet sliding stroke.
4, a kind of phase shifter module that loads based on medium as claimed in claim 3, it is characterized in that: described stopping means is chute that is provided with on upper cover plate or the lower shoe and the leading post that is arranged on dieelctric sheet, during installation, this leading post inserts in the chute and can slide along chute.
5, a kind of phase shifter module that loads based on medium as claimed in claim 1, it is characterized in that: dieelctric sheet is connected with pull bar, is used for the slip of manipulation medium sheet.
6, a kind of according to claim 1 phase shifter module that loads based on medium, it is characterized in that: described dieelctric sheet has three, arranges along strip line, and these three dieelctric sheets are one-body molded or adopt plastic structural part to connect.
7, as a kind of phase shifter module that loads based on medium as described in the claim 6, it is characterized in that: the dieelctric sheet area in the middle of being positioned at is bigger, and both sides dieelctric sheet area is less, and the dieelctric sheet left-right symmetric.
8, a kind of according to claim 1 phase shifter module that loads based on medium, it is characterized in that: dieelctric sheet is selected the material of high-k, low-loss tangent angle for use.
9, a kind of as claimed in claim 1 or 2 phase shifter module that loads based on medium is characterized in that: described dieelctric sheet area is done the variation of ladder along glide direction, and the area of dieelctric sheet diminishes gradually with the direction of inserting to strip line.
10, a kind of phase shifter module that loads based on medium, comprise microstrip line construction, described microstrip line construction comprises lower shoe and air microstrip line therebetween, it is characterized in that: also comprise being arranged at least one movable dieelctric sheet between microstrip line and the lower shoe, and with the moving of dieelctric sheet, the air microstrip line is done relative displacement along slit and dieelctric sheet.
11, a kind of phase shifter module that loads based on medium as claimed in claim 10, it is characterized in that: described dieelctric sheet slit inwall is close to microstrip line, slides along the direction vertical with microstrip line.
12, a kind of phase shifter module that loads based on medium as claimed in claim 10 is characterized in that: the stopping means that also is provided with restriction dieelctric sheet sliding stroke.
13, a kind of phase shifter module that loads based on medium as claimed in claim 12, it is characterized in that: described stopping means is chute that is provided with on the lower shoe and the leading post that is arranged on dieelctric sheet, during installation, this leading post inserts in the chute and can slide along chute.
14, a kind of phase shifter module that loads based on medium as claimed in claim 10, it is characterized in that: dieelctric sheet is connected with pull bar, is used for the manipulation medium sheet.
15, as a kind of phase shifter module that loads based on medium as described in the claim 10, it is characterized in that: described dieelctric sheet has three, arranges along microstrip line, and these three dieelctric sheets are one-body molded or adopt plastic structural part to connect.
16, as a kind of phase shifter module that loads based on medium as described in the claim 15, it is characterized in that: the dieelctric sheet area in the middle of being positioned at is bigger, and both sides dieelctric sheet area is less, and the dieelctric sheet left-right symmetric.
17, as a kind of phase shifter module that loads based on medium as described in the claim 10, it is characterized in that: dieelctric sheet is selected the material of high-k, low-loss tangent angle for use.
18, as a kind of phase shifter module that loads based on medium as described in claim 10 or 11, it is characterized in that: described dieelctric sheet area is done the variation of ladder along glide direction, and the area of dieelctric sheet diminishes gradually with the direction of inserting to microstrip line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200513717U CN201369377Y (en) | 2009-02-13 | 2009-02-13 | Phase shifter module based on medium loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200513717U CN201369377Y (en) | 2009-02-13 | 2009-02-13 | Phase shifter module based on medium loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369377Y true CN201369377Y (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200513717U Expired - Lifetime CN201369377Y (en) | 2009-02-13 | 2009-02-13 | Phase shifter module based on medium loading |
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| Country | Link |
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| CN (1) | CN201369377Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710633A (en) * | 2009-02-13 | 2010-05-19 | 广东通宇通讯设备有限公司 | Phase shifter module based on medium loading |
| CN103972614A (en) * | 2014-05-27 | 2014-08-06 | 深圳国人通信股份有限公司 | Antenna and phase shifter thereof |
| CN104201440A (en) * | 2014-08-21 | 2014-12-10 | 摩比天线技术（深圳）有限公司 | Dielectric phase shifter of base station electric tunable antenna |
| TWI565133B (en) * | 2014-05-23 | 2017-01-01 | Medium phase shifter |
-
2009
- 2009-02-13 CN CNU2009200513717U patent/CN201369377Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710633A (en) * | 2009-02-13 | 2010-05-19 | 广东通宇通讯设备有限公司 | Phase shifter module based on medium loading |
| TWI565133B (en) * | 2014-05-23 | 2017-01-01 | Medium phase shifter | |
| CN103972614A (en) * | 2014-05-27 | 2014-08-06 | 深圳国人通信股份有限公司 | Antenna and phase shifter thereof |
| CN104201440A (en) * | 2014-08-21 | 2014-12-10 | 摩比天线技术（深圳）有限公司 | Dielectric phase shifter of base station electric tunable antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG TONGYU COMMUNICATIONS CO., LTD. Free format text: FORMER NAME: GUANGDONG TONGYU COMMUNICATION EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528437 Torch Road 9, Torch Development Zone, Guangdong, Zhongshan, -1 Patentee after: Guangdong Tongyu Communications Co., Ltd. Address before: 528437 Torch Road 9, Torch Development Zone, Guangdong, Zhongshan, -1 Patentee before: Guangdong Tongyu Communication Equipment Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091223 Effective date of abandoning: 20090213 |
|
| RGAV | Abandon patent right to avoid regrant |