CN106785251A - Mode transmission ultra-broadband digital phase shifter - Google Patents
Mode transmission ultra-broadband digital phase shifter Download PDFInfo
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- CN106785251A CN106785251A CN201611240279.6A CN201611240279A CN106785251A CN 106785251 A CN106785251 A CN 106785251A CN 201611240279 A CN201611240279 A CN 201611240279A CN 106785251 A CN106785251 A CN 106785251A
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- input
- switching tube
- selector switch
- output
- output end
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
Abstract
The invention discloses a kind of mode transmission ultra-broadband digital phase shifter, including wire-wound inductor directional coupler, phase reference path, input selector switch, output selector switch, input matching unit and output matching unit；Input matching unit connection input selector switch, input selector switch connection wire-wound inductor directional coupler and phase reference path reconnect output selector switch, output selector switch connection output matching unit.Mode transmission ultra-broadband digital phase shifter of the invention, compact conformation, area is small, low cost, has preferable stationary wave characteristic, less phase shift fluctuation in the frequency range of ultra wide band, less insertion loss and parastic modulation, in can be widely applied to wideband phased array system.
Description
Technical field
The invention belongs to microelectronics and the frequency microwave integrated circuit fields of Solid State Electronics, it is related to a kind of digital phase shifter
Chip, more particularly to a kind of mode transmission ultra-broadband digital phase shifter.
Background technology
Phased array is widely used in high-speed radiocommunication and field of radar, in recent years the phased array based on silicon process technology
Row frequency microwave chip has become the focus of domestic and international research.With the development of ultra wide band AESA technology, to antenna
The requirement of wave beam control is improved constantly, and to Controller Circuit Used in Microwave Power Amplifier, the research of particularly ultra wide band high accuracy phase shifter has important
Meaning and practical value.
Phase shifter is a kind of two-port network, is mainly used in being controlled the phase of radio frequency and microwave transmission signal, is pressed
Phase shifter can be divided into two kinds of reflection-type and mode transmission by the working method according to digital phase shifter.In practical application, according to system
It is required that mode transmission and reflective design Multi-bit phase shifter would generally be combined.
Reflection-type phase shifter is widely used in the Wide-Band Design, but traditional three-dB coupler area occupied is big, is unfavorable for
It is integrated.In mode transmission phase shifter, high-pass and low-pass filter formula phase shifter is the most commonly used, but because the frequency of LC low-pass networks high is special
Property, cause the bandwidth of operation relative narrower of phase shifter.The usual big low pass jayrator high of amount of phase shift is adopted to obtain wider bandwidth
With the high pass and low pass LC filter of 3 ranks or 4 ranks, it is necessary to lamped element quantity it is many, it is big to take circuit area, but can only realize
About 25% relative bandwidth.
" D.C.Boire, J.E.Degenford and H.Cohn, A4.5to 18GHz Phase Shifter,
Microwave Symposium Digest, 1985IEEE MTT-S International, St.Louis MO USA, 1985,
The switch selection coupler and π type microstrip networks proposed in pp.601-604 " realize 180 ° of methods of phase shift, it is possible to achieve very wide
Bandwidth, but traditional coupler and π type microstrip network areas occupied are huge in the realization of frequency microwave integrated circuit, it is difficult to collect
Into.
Patent integrated millimeter wave phase shifter and its method (CN102273005) and ultra-broadband digital phase shifter
(CN2015209067929) a kind of millimeter wave reflection-type phase shifter based on hybrid coupler and a kind of ultra-wide are proposed respectively
Band reflection-type phase shifter, all with broadband and it is compact the characteristics of, but be all the phase shifter of reflection-type.
Therefore the practical width for finding and having concurrently and expand bandwidth and reduce circuit area is needed badly in frequency microwave integrated circuit
Band digital phase shifter.
The content of the invention
Goal of the invention：For problem above, the present invention proposes a kind of mode transmission ultra-broadband digital phase shifter.
Technical scheme：To realize the purpose of the present invention, the technical solution adopted in the present invention is：A kind of mode transmission ultra wide band
Digital phase shifter, including wire-wound inductor directional coupler, phase reference path, input selector switch, output selector switch, input
Matching unit and output matching unit；Input matching unit includes input and output end, and the input for being input into matching unit is
It is phase shifter inputs, the output end for being input into matching unit is connected with the input of input selector switch；Output matching unit bag
Include input and output end, the output end of output matching unit is phase shifter output end, the input of output matching unit with
The output end of output selector switch is connected；Input selector switch includes input, output end 1 and output end 2, output selector switch
Including input 1, input 2 and output end；Input selector switch output end 1 connects the input of wire-wound inductor directional coupler
End, the output end connection output selector switch input 1 of wire-wound inductor directional coupler；Input selector switch output end 2 is connected
The input of phase reference path, the output end connection output selector switch input 2 of phase reference path.
Wire-wound inductor directional coupler includes input, coupled end, straight-through end and isolation end, coupled end and straight-through termination
Ground, isolation end is used as output end；Input is connected with straight-through end by microstrip line, and coupled end is connected with isolation end by microstrip line
Connect；Input is connected to the microstrip line half at straight-through end in metal level 1, and half is in metal level 2；Coupled end is connected to isolation end
, in metal level 2, half is in metal level 1 for microstrip line half.
Phase reference path is T-shaped LC phase references path, is made up of two series inductances and a shunt capacitance；Phase
Reference path be wire-wound inductor directional coupler phase reference path, wire-wound inductor directional coupler include input, coupled end,
Straight-through end and isolation end, coupled end and isolation end are grounded, and input is connected with isolation end, and coupled end is connected with straight-through end, lead directly to
End is used as output end.
Input selector switch includes switching tube 1, switching tube 2, switching tube 3 and switching tube 4, switching tube 1 and switching tube 3 it is defeated
Enter end to be connected；One end ground connection of switching tube 2, the other end is connected with the output end of switching tube 1, the connection of switching tube 1 and switching tube 2
Node is input selector switch output end 1；One end ground connection of switching tube 4, the other end is connected with the output end of switching tube 3, switchs
The connecting node of pipe 3 and switching tube 4 is input selector switch output end 2；Input selector switch include switching tube 5, switching tube 6,
Switching tube 7 and switching tube 8, switching tube 5 are connected with the output end of switching tube 7；One end ground connection of switching tube 6, the other end and switch
The input of pipe 5 is connected, and the connecting node of switching tube 5 and switching tube 6 is output selector switch input 1；One end of switching tube 8
Ground connection, the other end is connected with the input of switching tube 7, and the connecting node of switching tube 7 and switching tube 8 is output selector switch input
End 2.
Beneficial effect：Mode transmission ultra-broadband digital phase shifter of the invention, compact conformation, area is small, low cost, in ultra-wide
There is preferable stationary wave characteristic, less phase shift fluctuation, less insertion loss and parastic modulation in the frequency range of band, can be with
It is widely used in wideband phased array system.
Brief description of the drawings
Fig. 1 is the structural representation of mode transmission ultra-broadband digital phase shifter of the invention；
Fig. 2 is the mode transmission ultra-broadband digital phase shifter circuit figure that the present invention implements；
Fig. 3 is wire-wound inductor directional coupler three dimensional structure diagram；
Fig. 4 is the mode transmission ultra-broadband digital phase shifter circuit figure that the present invention implements two；
Fig. 5 is the Electromagnetic Simulation result curve figure of implementation two, and Fig. 5 a are the insertion loss curves of phase shift state and reference state, figure
5b is the phase curve and phase-shift curve of phase shift state and reference state.
Specific embodiment
Technical scheme is further described with reference to the accompanying drawings and examples.
Mode transmission ultra-broadband digital phase shifter structure schematic diagram of the present invention is as shown in figure 1, fixed including wire-wound inductor
To coupler, phase reference path, input selector switch, output selector switch, input matching unit and output matching unit.Its
In, phase reference path can be T-shaped LC phase references path or wire-wound inductor directional coupler phase reference path, specifically such as
Described in embodiment one and embodiment two.
Embodiment one
Mode transmission ultra-broadband digital phase shifter in embodiment one as shown in Figure 2, including wire-wound inductor directional coupler, T
Type LC phase references path, input selector switch, output selector switch, input matching unit and output matching unit.Input
Input selector switch is connected with unit, input selector switch connects wire-wound inductor directional coupler and T-shaped LC phase references path,
Reconnect output selector switch, output selector switch connection output matching unit.
Input matching unit includes input and output end, and input is phase shifter inputs, and output end is selected with input
The input for selecting switch is connected；Output matching unit includes input and output end, and output end is phase shifter output end, is input into
End is connected with the output end of output selector switch；The input and output end of input and output matching unit pass through microstrip line construction reality
It is existing.
Input selector switch includes switching tube 1, switching tube 2, switching tube 3 and switching tube 4, order label T1~T4, switch
Pipe T1 is connected with the input of T3, and one end ground connection of switch transistor T 2, the other end is connected with the output end of T1, the connection section of T1 and T2
Point is input selector switch output end 1, and one end ground connection of switch transistor T 4, the other end is connected with the output end of T3, the company of T3 and T4
It is input selector switch output end 2 to connect node.Input selector switch includes switching tube 5, switching tube 6, switching tube 7 and switching tube 8,
Order label T5~T8, switch transistor T 5 is connected with the output end of T7, one end ground connection of switch transistor T 6, the input of the other end and T5
It is connected, the connecting node of T5 and T6 is output selector switch input 1, and one end ground connection of switch transistor T 8, the other end is defeated with T7
Enter end to be connected, the connecting node of T7 and T8 is output selector switch input 2.T1, T4, T5, T8 are controlled by signal VC, T2, T3,
T6, T7 are by complementary signalControl.
T-shaped LC phase references path is made up of two series inductance L1 and a shunt capacitance C1, and transmission response presents low
Logical characteristic, it is consistent with wire-wound inductor directional coupler path in the frequency range phase-frequency characteristic of demand, with fixed phase difference.
It is as shown in Figure 3 wire-wound inductor directional coupler, including input, coupled end, straight-through end and isolation end；Input
It is connected by microstrip line with straight-through end, coupled end is connected with isolation end by microstrip line；Coupled end and straight-through end are grounded, and pass through
Back metal grounding through hole is grounded.Input is connected with input selector switch output end 1, and isolation end is used as output end, with output
Selecting switch output end 1 is connected.Input is connected to the microstrip line half at straight-through end in metal level 1, and half is in metal level 2；Coupling
Close end and be connected to the microstrip line half of isolation end in metal level 2, half is in metal level 1.Shielding metal level is arranged at metal level 3
On, for isolating between holding wire and lossy silicon substrate.There is electromagnetism coupling in vertical direction in the microstrip line of different metal layer
Close, different metal layer is connected by metal throuth hole.Wherein, microstrip line is parallel is suspended in metal level.Wire-wound inductor directional coupler
Structure is symmetrical, symmetrical above and below, and uses lamped element, and area occupied is small, compact conformation, it is easy to which circuit is integrated, with tradition
Low-pass filter network high compare, bandwidth of operation very wide can be realized, have prominent advantage in bandwidth.
Optimize the stiffness of coupling and parasitic capacitance between wire-wound inductor directional couple unit by electromagnetic-field simulation, obtain
The ultra wide bandwidth of needs, leads directly to and holds identical with the output response amplitude of coupled end, differs close to the orthogonal coupling of 90 °, i.e. 3dB, defeated
Enter the bandpass characteristics that broadband is presented to the transmission response of isolation end for end.
Embodiment two
Mode transmission ultra-broadband digital phase shifter in embodiment two as shown in Figure 4, including wire-wound inductor directional coupler, around
Line inductance directional coupler phase reference path, input selector switch, output selector switch, input matching unit, output matching
Unit and ground unit.Input matching unit connection input selector switch, input selector switch connection wire-wound inductor directional couple
Device and wire-wound inductor directional coupler phase reference path, reconnect output selector switch, output selector switch connection output
With unit.
Coupled end and isolation end are grounded in wire-wound inductor directional coupler phase reference path, and input passes through with isolation end
Microstrip line is connected, and coupled end is connected with straight-through end by microstrip line；Input is connected with the output end of input selector switch, leads directly to
Section is used as output end, is connected with the input of output selector switch.Transmission response is presented low-pass characteristic, in the frequency range phase of demand
Frequency characteristic is consistent with wire-wound inductor directional coupler path, with fixed phase difference.
The digital phase shifter compact conformation of embodiment two, can realize bandwidth of operation very wide, there is protrusion in bandwidth
Advantage.It is as shown in Figure 5 Electromagnetic Simulation result that embodiment two realizes 180 degree phase shift, Fig. 5 a are phase shift state and reference state
Insertion loss curve, Fig. 5 b are the phase curve and phase-shift curve of phase shift state and reference state.The mode transmission ultra wide band of embodiment two
The working frequency range of digital phase shifter can reach the insertion loss scope of the ultra wide band range of 6~18GHz, phase shift state and reference state
It is 2.9 ± 0.9dB, phase shift range is 181 ± 6 °, loss and good phase shift stability with very little.
Wire-wound inductor directional coupler in mode transmission ultra-broadband digital phase shifter of the invention can be according to actual design
Demand and select to use more metal layers, such as 3 layers, 4 layers or more；And select different wire-wound inductor coupling series, such as 1
Level, 3 grades, 4 grades or more；Different line widths, different wire-wound inductor shape is such as square, circular, except spirality.The present invention
Mode transmission ultra-broadband digital phase shifter all use lamped element, relative to traditional broad-band phase shifter, be substantially reduced circuit
Area, compact overall structure, low cost, broadband character is good, has greater advantage in frequency microwave integrated chip and applies valency
Value, in can be widely applied to wireless communication system.
Claims (5)
1. a kind of mode transmission ultra-broadband digital phase shifter, it is characterised in that：Lead to including wire-wound inductor directional coupler, phase reference
Road, input selector switch, output selector switch, input matching unit and output matching unit；
Input matching unit includes input and output end, and the input for being input into matching unit is phase shifter inputs, is input into
The output end of matching unit is connected with the input of input selector switch；Output matching unit includes input and output end, defeated
Go out the output end as phase shifter output end of matching unit, the input of output matching unit and the output end of output selector switch
It is connected；
Input selector switch includes input, output end 1 and output end 2, and output selector switch includes input 1, the and of input 2
Output end；Input selector switch output end 1 connects the input of wire-wound inductor directional coupler, wire-wound inductor directional coupler
Output end connection output selector switch input 1；Input selector switch output end 2 connects the input of phase reference path, phase
The output end connection output selector switch input 2 of position reference path.
2. mode transmission ultra-broadband digital phase shifter according to claim 1, it is characterised in that：Wire-wound inductor directional coupler
Including input, coupled end, straight-through end and isolation end, coupled end is used as output end with straight-through end ground connection, isolation end；Input with
Straight-through end is connected by microstrip line, and coupled end is connected with isolation end by microstrip line；Input is connected to the microstrip line at straight-through end
, in metal level 1, half is in metal level 2 for half；Coupled end is connected to the microstrip line half of isolation end in metal level 2, and half is in gold
Category layer 1.
3. mode transmission ultra-broadband digital phase shifter according to claim 1, it is characterised in that：Phase reference path is T-shaped
LC phase reference paths, are made up of two series inductances and a shunt capacitance.
4. mode transmission ultra-broadband digital phase shifter according to claim 1, it is characterised in that：Phase reference path is coiling
Inductance directional coupler phase reference path, wire-wound inductor directional coupler includes input, coupled end, straight-through end and isolates
End, coupled end and isolation end are grounded, and input is connected with isolation end, and coupled end is connected with straight-through end, lead directly to end and are used as output end.
5. mode transmission ultra-broadband digital phase shifter according to claim 1, it is characterised in that：
Input selector switch includes switching tube 1 (T1), switching tube 2 (T2), switching tube 3 (T3) and switching tube 4 (T4), switching tube 1
Input with switching tube 3 is connected；One end ground connection of switching tube 2, the other end is connected with the output end of switching tube 1, the He of switching tube 1
The connecting node of switching tube 2 is input selector switch output end 1；One end ground connection of switching tube 4, the other end is defeated with switching tube 3
Go out end to be connected, the connecting node of switching tube 3 and switching tube 4 is input selector switch output end 2；
Input selector switch includes switching tube 5 (T5), switching tube 6 (T6), switching tube 7 (T7) and switching tube 8 (T8), switching tube 5
Output end with switching tube 7 is connected；One end ground connection of switching tube 6, the other end is connected with the input of switching tube 5, the He of switching tube 5
The connecting node of switching tube 6 is output selector switch input 1；One end ground connection of switching tube 8, the other end is defeated with switching tube 7
Enter end to be connected, the connecting node of switching tube 7 and switching tube 8 is output selector switch input 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611240279.6A CN106785251A (en) | 2016-12-29 | 2016-12-29 | Mode transmission ultra-broadband digital phase shifter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611240279.6A CN106785251A (en) | 2016-12-29 | 2016-12-29 | Mode transmission ultra-broadband digital phase shifter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540214A (en) * | 2018-03-23 | 2018-09-14 | 西安空间无线电技术研究所 | A kind of wideband phase equalization methods suitable for array transponder |
| CN108540114A (en) * | 2018-06-08 | 2018-09-14 | 南京国博电子有限公司 | A kind of high power RF switch |
| CN109560787A (en) * | 2018-12-19 | 2019-04-02 | 佛山臻智微芯科技有限公司 | One bit realizes the reflex type digital phase shifter of two kinds of phase shifts |
| CN109802652A (en) * | 2019-01-10 | 2019-05-24 | 复旦大学 | A kind of phase shifter of 5G phased array |
| CN111029686A (en) * | 2019-12-16 | 2020-04-17 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
| CN115101904A (en) * | 2022-05-30 | 2022-09-23 | 南京邮电大学 | Low-loss single-switch broadband microwave 180-degree phase shifter |
| CN117040488A (en) * | 2023-06-20 | 2023-11-10 | 北京无线电测量研究所 | Microwave numerical control phase shifter chip |
| CN117081545A (en) * | 2023-09-01 | 2023-11-17 | 北京无线电测量研究所 | Ultra-wideband digital phase shifter |
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| CN104810576A (en) * | 2015-03-31 | 2015-07-29 | 中国电子科技集团公司第五十五研究所 | Millimeter wave broadband 0-pi phase shifter |
| CN205122733U (en) * | 2015-11-13 | 2016-03-30 | 南京米乐为微电子科技有限公司 | Ultra wide band digital phase shifter |
| CN205376694U (en) * | 2016-01-27 | 2016-07-06 | 南京米乐为微电子科技有限公司 | Looks ware is moved to ultra wide band definite value based on capacitive load |
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| CN102509815A (en) * | 2011-10-27 | 2012-06-20 | 无锡南理工科技发展有限公司 | Millimeter-wave multi-digit miniature digital phase shifter |
| CN104810576A (en) * | 2015-03-31 | 2015-07-29 | 中国电子科技集团公司第五十五研究所 | Millimeter wave broadband 0-pi phase shifter |
| CN205122733U (en) * | 2015-11-13 | 2016-03-30 | 南京米乐为微电子科技有限公司 | Ultra wide band digital phase shifter |
| CN205376694U (en) * | 2016-01-27 | 2016-07-06 | 南京米乐为微电子科技有限公司 | Looks ware is moved to ultra wide band definite value based on capacitive load |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540214A (en) * | 2018-03-23 | 2018-09-14 | 西安空间无线电技术研究所 | A kind of wideband phase equalization methods suitable for array transponder |
| CN108540214B (en) * | 2018-03-23 | 2021-02-09 | 西安空间无线电技术研究所 | Broadband phase equalization method suitable for array transponder |
| CN108540114A (en) * | 2018-06-08 | 2018-09-14 | 南京国博电子有限公司 | A kind of high power RF switch |
| CN109560787A (en) * | 2018-12-19 | 2019-04-02 | 佛山臻智微芯科技有限公司 | One bit realizes the reflex type digital phase shifter of two kinds of phase shifts |
| CN109802652A (en) * | 2019-01-10 | 2019-05-24 | 复旦大学 | A kind of phase shifter of 5G phased array |
| CN111029686A (en) * | 2019-12-16 | 2020-04-17 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
| CN115101904A (en) * | 2022-05-30 | 2022-09-23 | 南京邮电大学 | Low-loss single-switch broadband microwave 180-degree phase shifter |
| CN115101904B (en) * | 2022-05-30 | 2023-12-01 | 南京邮电大学 | Low loss single switch broadband microwave 180 degree phase shifter |
| CN117040488A (en) * | 2023-06-20 | 2023-11-10 | 北京无线电测量研究所 | Microwave numerical control phase shifter chip |
| CN117081545A (en) * | 2023-09-01 | 2023-11-17 | 北京无线电测量研究所 | Ultra-wideband digital phase shifter |
| CN117081545B (en) * | 2023-09-01 | 2024-03-22 | 北京无线电测量研究所 | Ultra-wideband digital phase shifter |
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