CN103401046A - Coupling phase shifter - Google Patents
Coupling phase shifter Download PDFInfo
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- CN103401046A CN103401046A CN201310338705XA CN201310338705A CN103401046A CN 103401046 A CN103401046 A CN 103401046A CN 201310338705X A CN201310338705X A CN 201310338705XA CN 201310338705 A CN201310338705 A CN 201310338705A CN 103401046 A CN103401046 A CN 103401046A
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Abstract
The invention discloses a coupling phase shifter, which comprises a dielectric plate and a coupling piece, wherein one end of the coupling piece is connected with the dielectric plate through a rotating shaft; the dielectric plate is provided with a group of micro-strip arc-shaped walls and micro-strip feeder lines; the two ends of each micro-strip arc-shaped wall are output ends; the coupling piece is provided with a coupling arm; and the coupling arm is positioned above the micro-strip arc-shaped walls and the micro-strip feeder lines, and are coupled with the micro-strip arc-shaped walls and the micro-strip feeder lines. With the adoption of the coupling phase shifter, the condition that the phase shifting amount is big enough is guaranteed, and meanwhile, the whole volume of the device is also reduced; the structure of the coupling phase shifter is symmetrical, simple and compact, can be switched with five antennae, and adapts to the requirements of tunable antennae of a base station; and with the adoption of the coupling phase shifter, the production assembling efficiency is greatly improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of coupling phase shifter of electrical tilt antenna.
Background technology
fast development along with mobile communication, common plate antenna oneself can not the satisfying the market requirement, oneself surpasses common antenna the demand day by day of electrical tilt antenna, the difference of electrical tilt antenna and common antenna is that tilt angled down can regulate, and the core point of electrical tilt antenna is exactly phase shifter, the size of phase shifter is mainly by in the phase shifter course of work, the size that length of transmission line changes determines, the amount of phase shift of phase shifter is large, the length that long transmission line changes will be greatly, again can be to bringing a series of amplitudes such as phase shifter but lengthen the length of transmission line excursion, standing-wave ratio, the technical barrier of the electric property stability such as insertion loss.The shortcoming of existing phase shifter is that amount of phase shift is little, and oversize.The little direct tilt angled down that affects antenna pattern of amount of phase shift, the addressing of restriction antenna for base station, oversize, can dwindle the wiring space of electrical tilt antenna feed system, complexity while strengthening wiring, antenna electrical performance is had a huge impact, also can affect antenna attractive in appearance, and bring difficulty for follow-up antenna service work.
Summary of the invention
Goal of the invention: for the problem and shortage that above-mentioned prior art exists, the purpose of this invention is to provide a kind of simple in structurely, volume is little, easy for installation and coupling phase shifter that cost is low.
technical scheme: for achieving the above object, the technical solution used in the present invention is a kind of coupling phase shifter, comprise dielectric-slab and coupling piece, one end of described coupling piece is connected with dielectric-slab by rotating shaft, described dielectric-slab is provided with one group of micro-band arc arms, microstrip feed line and center output line, described center output line is connected with microstrip feed line, described micro-two ends with circular arc wall are output, described coupling piece is provided with coupling arm, described coupling arm be positioned at micro-top with arc arms and center output line and microstrip feed line and with micro-band arc arms and center output line and microstrip feed line coupling.
Wherein, described one group micro-with circular arc wall, be micro-band arc arms of two concentrics, two micro-the same sides that are located at described center output line and microstrip feed line with arc arms, described two micro-centers of circle with arc arms are arranged on the junction of microstrip feed line and center output line, and the rotating shaft of described coupling arm overlaps with two micro-centers of circle with arc arms.
Further, described coupling arm is provided with micro-with coupled end corresponding to arc arms, and coupled end is micro-band circular arc, and the radius of the coupled end that arranges on described coupling arm is consistent with corresponding micro-band arc arms radius.
Described micro-band arc arms, center output line, microstrip feed line and coupling arm are microstrip structure and form.Microstrip structure is compared with metal waveguide structure, and its volume is little, be easy to processing, lightweight, service band is wide, reliability is high and low cost of manufacture etc., and dielectric-slab is selected the material that dielectric constant is high, lossy microwave is low.Micro-with arc arms and microstrip line should have that conductance is high, good stability, with the characteristics such as the adhesiveness of substrate is strong
The ratio of described two micro-radiuses with arc arms is 3:1 or 2:1; The ratio that adopts two micro-radiuses with arc arms is the coupling phase shifter of 3:1, and the area of coupling phase shifter can increase approximately 1/4th, and frequency band range can narrow down relatively, is applicable to the antenna of low frequency; Adopting the ratio of two micro-radiuses with arc arms is the coupling phase shifter of 2:1, can reduce the area of coupling phase shifter, and frequency band range can be wide, is applicable to the antenna of wideband;
Center output line and microstrip feed line and two micro-dielectric-slabs that form five tunnel outputs with arc arms, form with coupling piece the coupling phase shifter that export on Yi Zu five tunnels.
Described coupling piece, for the insulation coupling piece, has gap between described coupling piece and dielectric-slab.There is gap coupling piece is easily slided on dielectric-slab, and reach the target tilt angled down.
Operation principle: the main feeder of microstrip feed line one termination antenna, the power maximum of center output line, connect the radiating element of the maximum power distribution of antenna, the inferior radiation of power unit of the output termination antenna of two micro-arms of small arc-shaped with arc arms, the minimum power radiating element of the output termination antenna of orthodrome arm; Form one group of five unit low gain electrical tilt antenna or through the power splitter of overmatching, form the electrical tilt antenna greater than the high-gain of Unit five; When needs are adjusted tilt angled down, only need to make coupling piece rotation to corresponding angle can reach needed angle of declination.When guaranteeing that the amount of shifting to is enough, effectively reduced the volume of whole device like this.
Beneficial effect: two micro-band arc arms of the present invention adopt microwave structure on electrical principle, article two, micro-radius with arc arms is inconsistent, thereby it is large to make to be connected to different micro-differences of phase place with the radiating element on the arc arm and variable quantity, realize the large angle of declination of main beam, and compare with having utilized common phase shifter, the present invention is when the assurance amount of phase shift is enough large, the overall volume of device has also reduced, symmetrical configuration of the present invention, simply, compactness, improved the efficiency of production and assembly greatly, accessible No. five antennas, be suitable for the requirement of electric tuning antenna of base station.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of coupling arm of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical scheme of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
as Fig. 1 and as shown in Figure 2, a kind of coupling phase shifter, this phase shifter is take dielectric-slab 1 as substrate, dielectric-slab 1 single face covers copper and full plate green oil, at Jie's plate plate 1 upper surface, be provided with large micro-band arc arms 11, little micro-band arc arms 12 and microstrip feed line 14, center output line 13, large micro-with arc arms 11 with micro-ly with small arc-shaped arm 12, to put 15, as the center of circle, be arranged on the same side of microstrip feed line 14, two micro-five outputs with arc arms are connected with antenna radiation unit respectively, one end of center output line 13 and microstrip feed line 14 is arranged on two micro-centre point with arc arms 15 places, coupling arm 21 is arranged on the coupling piece 2 that non-conducting material makes, coupling piece 2 is oppositely arranged with dielectric-slab 1, make coupling arm 21 be positioned at large micro-band arc arms 11, little micro-top with arc arms 12 and microstrip feed line 13 and micro-band arc arms and microstrip feed line coupling, the rotating shaft 22 of coupling arm 21 overlaps with two micro-centers of circle with arc arms 15, on coupling arm 21, be provided with coupled end 23 respectively with on micro-position corresponding with arc arms, coupled end 23 is circular arc, its arc radius is consistent with corresponding micro-band arc arms radius, in Zai Ben five tunnel slow wave structure phase shifters, the ratio of micro-radius with arc arms is 3:1 or 2:1.
The main feeder of microstrip feed line 14 1 termination antennas, the power maximum of center output line 13, connect the radiating element of the maximum power distribution of antenna, the output 12 of small arc-shaped arm connects the inferior radiation of power unit of antenna, and the output 11 of orthodrome arm connects the minimum power radiating element of antenna; Form one group of five unit low gain electrical tilt antenna or through the electrical tilt antenna of the high-gain of Unit ten that the power splitter of overmatching forms; When needs are adjusted tilt angled down, only need to make coupling arm 2 rotations to corresponding angle can reach needed angle of declination.
Claims (6)
1. coupling phase shifter, it is characterized in that: comprise dielectric-slab and coupling piece, an end of described coupling piece is connected with dielectric-slab by rotating shaft, and described dielectric-slab is provided with one group of micro-band circular arc wall, microstrip feed line and center output line; Described center output line is connected with microstrip feed line, and described micro-two ends with circular arc wall are output, and described coupling piece is provided with coupling arm, and described coupling arm is positioned at micro-band arc arms and microstrip feed line top and is coupled with micro-band arc arms and microstrip feed line.
2. coupling phase shifter according to claim 1, it is characterized in that: described one group micro-with circular arc wall, be micro-band arc arms of two concentrics, described two micro-the same sides that are located at described center output line and microstrip feed line with arc arms, described two micro-centers of circle with arc arms are arranged on the junction of microstrip feed line and center output line, and the rotating shaft of described coupling arm overlaps with two micro-centers of circle with arc arms.
3. coupling phase shifter according to claim 1, it is characterized in that: described coupling arm is provided with micro-with coupled end corresponding to arc arms, coupled end is micro-band circular arc, and the radius of the coupled end that arranges on described coupling arm is consistent with corresponding micro-band arc arms radius.
4. coupling phase shifter according to claim 1 is characterized in that: described micro-band arc arms, center output line, microstrip feed line and coupling arm are microstrip structure and form.
5. the described coupling phase shifter of according to claim 1 ~ 4 any one claim, it is characterized in that: the ratio of described two micro-radiuses with arc arms is 3:1 or 2:1.
6. coupling phase shifter according to claim 1 is characterized in that: described coupling piece, for the insulation coupling piece, has gap between described coupling piece and dielectric-slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338705XA CN103401046A (en) | 2013-08-06 | 2013-08-06 | Coupling phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338705XA CN103401046A (en) | 2013-08-06 | 2013-08-06 | Coupling phase shifter |
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| Publication Number | Publication Date |
|---|---|
| CN103401046A true CN103401046A (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310338705XA Pending CN103401046A (en) | 2013-08-06 | 2013-08-06 | Coupling phase shifter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585025A (en) * | 2020-05-20 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Phase shifter and base station antenna |
| CN112103653A (en) * | 2020-08-19 | 2020-12-18 | 广东盛路通信科技股份有限公司 | Rotary arc phase shifter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2083477A1 (en) * | 2008-01-25 | 2009-07-29 | Commscope Inc. of North Carolina | Phase shifter and antenna including phase shifter |
| US20120105299A1 (en) * | 2009-04-30 | 2012-05-03 | Maximilian Goettl | Method for operating a phase-controlled group antenna and phase shifter assembly and an associated phase-controlled group antenna |
| CN202601815U (en) * | 2012-04-17 | 2012-12-12 | 广州桑瑞通信设备有限公司 | Slow wave phase shifter |
| CN202917611U (en) * | 2012-11-12 | 2013-05-01 | 江苏亨鑫科技有限公司 | Low frequency phase shifter |
| CN203386868U (en) * | 2013-08-06 | 2014-01-08 | 南京澳博阳射频技术有限公司 | Coupling phase shifter |
-
2013
- 2013-08-06 CN CN201310338705XA patent/CN103401046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2083477A1 (en) * | 2008-01-25 | 2009-07-29 | Commscope Inc. of North Carolina | Phase shifter and antenna including phase shifter |
| US20120105299A1 (en) * | 2009-04-30 | 2012-05-03 | Maximilian Goettl | Method for operating a phase-controlled group antenna and phase shifter assembly and an associated phase-controlled group antenna |
| CN202601815U (en) * | 2012-04-17 | 2012-12-12 | 广州桑瑞通信设备有限公司 | Slow wave phase shifter |
| CN202917611U (en) * | 2012-11-12 | 2013-05-01 | 江苏亨鑫科技有限公司 | Low frequency phase shifter |
| CN203386868U (en) * | 2013-08-06 | 2014-01-08 | 南京澳博阳射频技术有限公司 | Coupling phase shifter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585025A (en) * | 2020-05-20 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Phase shifter and base station antenna |
| CN111585025B (en) * | 2020-05-20 | 2021-08-17 | 中信科移动通信技术股份有限公司 | Phase shifter and base station antenna |
| CN112103653A (en) * | 2020-08-19 | 2020-12-18 | 广东盛路通信科技股份有限公司 | Rotary arc phase shifter |
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Application publication date: 20131120 |
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