CN1151605C - Vector compounding phase shifter - Google Patents
Vector compounding phase shifter Download PDFInfo
- Publication number
- CN1151605C CN1151605C CNB981254624A CN98125462A CN1151605C CN 1151605 C CN1151605 C CN 1151605C CN B981254624 A CNB981254624 A CN B981254624A CN 98125462 A CN98125462 A CN 98125462A CN 1151605 C CN1151605 C CN 1151605C
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- CN
- China
- Prior art keywords
- phase
- phase shifter
- adder
- vector
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a vector compounding phase shifter, which comprises an orthogonal phase separator and a summator, wherein two reversible phase electric control attenuators are connected in series between the orthogonal phase separator and the summator. The present invention has the advantages of wide phase shifting range, high phase resolution and small output signal amplitude fluctuation.
Description
The present invention relates to a kind of electronic technology device, especially a kind of vector compounding phase shifter.
Vector compounding phase shifter generally is used for communication, radar, observing and controlling and accelerator radio frequency system.At present, existing vector compounding phase shifter is to be serially connected with two voltage-controlled attenuators between orthogonal phase splitter and adder, and the control signal of its voltage-controlled attenuator is to adopt continuously adjustable two separate analogue voltages (or electric current) control; From above condition can find out since adopt can not be anti-phase voltage-controlled attenuator, this is confined to a quadrant with regard to the phase shift range that has determined phase shifter, promptly 0-90 °; In addition owing to adopt two aanalogvoltage (or electric current) control voltage-controlled attenuators independently, therefore be difficult to very regulate subtly the phase shift of phase shifter, the phase resolution that yet is phase shifter is not high, is not better than 3 ° usually, and owing to regulating the then amplitude output signal big rise and fall of phase shifter for independent signal.
The vector compounding phase shifter that a kind of phase shift range is wide, phase resolution is high in order to provide, the amplitude output signal fluctuating is little is provided.
Purpose of the present invention can realize by following measure:
A kind of vector compounding phase shifter comprises orthogonal phase splitter, adder; Two can be serially connected between orthogonal phase splitter and the adder after the anti-phase voltage-controlled attenuator parallel connection.
Can after the D/A converter conversion, controlling with the digital signal that single-chip microcomputer produces by anti-phase voltage-controlled attenuator of described vector compounding phase shifter.
The present invention has following advantage compared to existing technology:
1, utilization of the present invention can be anti-phase voltage-controlled attenuator replace can not be anti-phase voltage-controlled attenuator, making phase shift range be extended to whole four quadrants is in the 0-360 ° of scope.
2, the present invention utilizes D/A converter that digital signal is converted to analog signal and controls attenuator, makes the phase resolution of phase shifter improve its resolution φ=360 °/2 ", N is the figure place of D/A converter in the formula, and its figure place is high more, and resolution is high more.
3, the present invention utilizes single-chip microcomputer to export control signal simultaneously, thereby can make the phase shifter amplitude output signal constant substantially in the phase shift process.
4, take compensating circuit on the output signal of the present invention after adder, thereby make phase shifter unattenuated high-frequency signal.
Concrete structure of the present invention is provided by the following drawings:
Fig. 1 is a theory diagram of the present invention
1-orthogonal phase splitter 2-can anti-phase voltage-controlled attenuator 3-adder 4-D/A converter
5-single-chip microcomputer
Fig. 2 is the embodiment circuit diagram of high-frequency circuit of the present invention
The present invention also incites somebody to action in conjunction with the accompanying drawings, and 1,2 embodiment are described in further detail:
With reference to Fig. 1, a kind of vector compounding phase shifter comprises orthogonal phase splitter 1, adder 3; Two can be serially connected between orthogonal phase splitter 1 and the adder 3 after anti-phase voltage-controlled attenuator 2 parallel connections; Described can control after D/A converter 4 conversions with the digital signal that single-chip microcomputer 5 produces by anti-phase voltage-controlled attenuator 2, the figure place of described D/A converter 4 is 12.Described orthogonal phase splitter 1, can anti-phase voltage-controlled attenuator 2, adder 3 all can obtain by commercially available.
With reference to Fig. 2, be high-frequency circuit embodiment schematic diagram of the present invention; High-frequency signal by orthogonal phase splitter 1U phase-splitting after output two-way high-frequency signal, respectively via triode T
1, T
2The emitter follower of forming is added in all right one way or the other anti-phase voltage-controlled attenuator 2U
2, U
5On, two attenuator 2U
2, U
5Control signal U
x, U
yDigital signal by single-chip microcomputer 5 produces after D/A converter 4 conversions; Two attenuator 2U
2, U
3The signal of output is at adder 3U
4Middle addition; By adder 3U
4The signal of output has produced decay, also is provided with the compensation amplifying circuit on its output signal, and this compensation amplifying circuit is by triode T
3, T
4, T
5Form, the high-frequency signal of output is identical with the amplitude of the high-frequency signal of input after compensating.Its control circuit promptly produces digital signal control after D/A converter 4 conversions by single-chip microcomputer 5.
Claims (4)
1, a kind of vector compounding phase shifter comprises orthogonal phase splitter (1), adder (3); It is characterized in that two can be serially connected between orthogonal phase splitter (1) and the adder (3) after anti-phase voltage-controlled attenuator (2) parallel connection.
2, vector compounding phase shifter as claimed in claim 1 is characterized in that the described digital signal that can the available single-chip microcomputer of anti-phase voltage-controlled attenuator (2) (5) produces controls through D/A converter (4) conversion back.
3, vector compounding phase shifter as claimed in claim 1 is characterized in that also being provided with the compensation amplifying circuit on the output signal behind the adder (3).
4, vector compounding phase shifter as claimed in claim 1 or 2 is characterized in that optional 8,12,16 of described D/A converters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981254624A CN1151605C (en) | 1998-12-07 | 1998-12-07 | Vector compounding phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981254624A CN1151605C (en) | 1998-12-07 | 1998-12-07 | Vector compounding phase shifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1256555A CN1256555A (en) | 2000-06-14 |
| CN1151605C true CN1151605C (en) | 2004-05-26 |
Family
ID=5229176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981254624A Expired - Fee Related CN1151605C (en) | 1998-12-07 | 1998-12-07 | Vector compounding phase shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151605C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680853B (en) * | 2018-04-03 | 2020-09-04 | 广州嘉能自动化设备有限公司 | Motor aging test method and device by using phase-shifting power supply |
-
1998
- 1998-12-07 CN CNB981254624A patent/CN1151605C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1256555A (en) | 2000-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |