CN112583385A - Variable gain broadband phase shifter - Google Patents
Variable gain broadband phase shifter Download PDFInfo
- Publication number
- CN112583385A CN112583385A CN201910929450.1A CN201910929450A CN112583385A CN 112583385 A CN112583385 A CN 112583385A CN 201910929450 A CN201910929450 A CN 201910929450A CN 112583385 A CN112583385 A CN 112583385A
- Authority
- CN
- China
- Prior art keywords
- phase
- control unit
- gain
- gain control
- phase shift
- 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.)
- Granted
Links
- 230000010363 phase shift Effects 0.000 claims abstract description 22
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/182—Waveguide phase-shifters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K2005/00286—Phase shifter, i.e. the delay between the output and input pulse is dependent on the frequency, and such that a phase difference is obtained independent of the frequency
Abstract
The invention discloses a variable gain broadband phase shifter, which comprises a 5-bit phase control unit and a 4-bit gain control unit, wherein the phase control unit is used for realizing accurate phase control with the stepping of 11.25 degrees, and the gain control unit is used for realizing the gain control with the stepping of 0.5 dB. The invention has the beneficial effects of (1) multiple functions. One module circuit can realize two functions of phase control and gain control; (2) high phase shift precision and wide working frequency range. The gain control unit improves the isolation between the phase shift units, so that the influence between the phase shift units is small, and good phase control can be realized in a broadband, namely, the phase shift precision is improved.
Description
Technical Field
The invention relates to the field of microwave and millimeter wave terahertz integrated circuits, in particular to a variable-gain broadband phase shifter.
Background
The millimeter wave phased array technology has various advantages of large-scale array integration, rapid, flexible and controllable beam scanning, accurate spatial resolution and the like, is widely applied to the field of military radars and the field of vehicle-mounted radars in intelligent driving, and is also applied to the field of 5G and 6G communication. The amplitude and phase control module is used as the most key circuit in the phased array technology, and the performance of the amplitude and phase control module determines performance indexes such as beam scanning precision and beam scanning range of a phased array system. In the amplitude-phase control module, a phase shifter provides accurate phase control for a phased array system; the attenuator or gain controller compensates for gain errors caused by phase changes of the phase shifter and also obtains a better beam width and side lobe levels for adjusting the signal amplitude.
In a traditional phased array amplitude and phase control module, a phase shifter and an attenuator are two independent module circuits, and a large chip area is usually occupied. Each phase shifting unit in the traditional numerical control phase shifter is directly connected, the mutual interference among the phase shifting units is large, the design and optimization difficulty is high, and the high phase shifting precision is difficult to realize in a wide frequency range. In addition, at millimeter wave frequency, the loss of passive devices is large, and the passive phase shifter and attenuator can put extremely high requirements on the gain of an amplifier in a phased array system, and can also increase the static power consumption of the system.
Disclosure of Invention
Based on the requirements, in order to overcome the defects of the traditional numerical control phase shifter structure, the variable-gain broadband phase shifter is provided, one circuit is used for realizing two functions of phase control and gain control, and the phase shifting precision is improved in a broadband frequency range.
To achieve the object of the present invention, the present invention provides a variable gain broadband phase shifter, comprising a 5-bit phase control unit for implementing precise phase control with a step of 11.25 ° and a 4-bit gain control unit for implementing gain control with a step of 0.5 dB.
The phase control unit and the gain control unit both adopt a digitally controlled circuit structure.
The phase control units and the gain control units are transversely distributed in a spaced and inserted structure, and the gain control units are used for isolating different phase control units, so that the phase shift amount and the amplitude balance degree of the phase control units are hardly influenced by other phase shift units, and the phase shift precision of the phase shifter is improved.
Compared with the prior art, the invention has the advantages that,
(1) and (4) multiple functions. One module circuit can realize two functions of phase control and gain control;
(2) high phase shift precision and wide working frequency range. The gain control unit improves the isolation between the phase shift units, so that the influence between the phase shift units is small, and good phase control can be realized in a broadband, namely, the phase shift precision is improved.
Drawings
Fig. 1 is a schematic diagram of a variable gain broadband phase shifter according to the present application.
Fig. 2 is a schematic structural diagram of an embodiment of a variable gain broadband phase shifter according to the present application.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1, the present invention provides a variable gain wideband phase shifter including a 5-bit phase control unit and a 4-bit gain control unit. The phase control unit is used for realizing accurate phase control with the stepping of 11.25 degrees, and the gain control unit is used for realizing gain control with the stepping of 0.5 dB.
The phase control unit and the gain control unit both adopt a digitally controlled circuit structure.
The phase control units and the gain control units are transversely distributed in a spaced and inserted structure, and the gain control units are used for isolating different phase control units, so that the phase shift amount and the amplitude balance degree of the phase control units are hardly influenced by other phase shift units, and the phase shift precision of the phase shifter is improved.
The arrangement sequence of the phase control unit and the gain control unit has certain influence on the performance of the circuit. In the embodiment shown in fig. 2, the input end signal is sequentially connected to the 180 ° phase shift unit and the 90 ° phase shift unit, and then sequentially connected to the 4dB gain control unit, the 22.5 ° phase shift unit, the 2dB gain control unit, the 11.25 ° phase shift unit, the 1dB gain control unit, the 45 ° phase shift unit, and the 0.5dB gain control unit.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A variable gain broadband phase shifter is characterized by comprising a 5-bit phase control unit and a 4-bit gain control unit, wherein the phase control unit is used for realizing accurate phase control with the stepping of 11.25 degrees, and the gain control unit is used for realizing gain control with the stepping of 0.5 dB.
2. A variable gain broadband phase shifter according to claim 1, wherein said phase control unit and said gain control unit each employ a digitally controlled circuit configuration.
3. The phase shifter according to claim 1, wherein the phase control units and the gain control units are laterally arranged in a spaced-apart configuration, and the gain control units are used to isolate different phase control units from each other, so that the phase shift amount and the amplitude balance of the phase control units are hardly affected by other phase shift units, thereby improving the phase shift accuracy of the phase shifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929450.1A CN112583385B (en) | 2019-09-27 | 2019-09-27 | Variable gain broadband phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929450.1A CN112583385B (en) | 2019-09-27 | 2019-09-27 | Variable gain broadband phase shifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112583385A true CN112583385A (en) | 2021-03-30 |
| CN112583385B CN112583385B (en) | 2024-03-01 |
Family
ID=75110248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910929450.1A Active CN112583385B (en) | 2019-09-27 | 2019-09-27 | Variable gain broadband phase shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112583385B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020158710A1 (en) * | 2001-04-30 | 2002-10-31 | Penn John E. | Broadband, four-bit, MMIC phase shifter |
| CN101079644A (en) * | 2006-05-23 | 2007-11-28 | 上海图越信息技术有限公司 | A pre-distorter and TD-SCDMA power amplification module using this predictive distorter |
| US20120068748A1 (en) * | 2009-05-12 | 2012-03-22 | Cisco Technology, Inc. | Phase Detection Method and Phase Detector |
| CN203491990U (en) * | 2013-09-22 | 2014-03-19 | 合肥正弦波无线技术有限公司 | Phase shifter adjustable in signal amplitude |
| CN107124154A (en) * | 2017-03-30 | 2017-09-01 | 复旦大学 | A kind of high-precision active phase shifter in broadband |
| CN207099070U (en) * | 2017-08-31 | 2018-03-13 | 天津中科海高微波技术有限公司 | Wide-band microwave width phase control applied to phased array system receives and dispatches multifunction chip |
| CN110098818A (en) * | 2019-05-29 | 2019-08-06 | 中电国基南方有限公司 | A kind of digital phase shifter |
-
2019
- 2019-09-27 CN CN201910929450.1A patent/CN112583385B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020158710A1 (en) * | 2001-04-30 | 2002-10-31 | Penn John E. | Broadband, four-bit, MMIC phase shifter |
| CN101079644A (en) * | 2006-05-23 | 2007-11-28 | 上海图越信息技术有限公司 | A pre-distorter and TD-SCDMA power amplification module using this predictive distorter |
| US20120068748A1 (en) * | 2009-05-12 | 2012-03-22 | Cisco Technology, Inc. | Phase Detection Method and Phase Detector |
| CN203491990U (en) * | 2013-09-22 | 2014-03-19 | 合肥正弦波无线技术有限公司 | Phase shifter adjustable in signal amplitude |
| CN107124154A (en) * | 2017-03-30 | 2017-09-01 | 复旦大学 | A kind of high-precision active phase shifter in broadband |
| CN207099070U (en) * | 2017-08-31 | 2018-03-13 | 天津中科海高微波技术有限公司 | Wide-band microwave width phase control applied to phased array system receives and dispatches multifunction chip |
| CN110098818A (en) * | 2019-05-29 | 2019-08-06 | 中电国基南方有限公司 | A kind of digital phase shifter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112583385B (en) | 2024-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2764575B1 (en) | Scalable, analog monopulse network | |
| US5166690A (en) | Array beamformer using unequal power couplers for plural beams | |
| AU2011238848B2 (en) | An RF feed network for modular active aperture electronically steered arrays | |
| WO2021098196A1 (en) | Ultra-wideband attenuator | |
| US20040027279A1 (en) | Modular phased array with improved beam-to-beam isolation | |
| DE4203932A1 (en) | SEND / RECEIVE MODULE | |
| KR101772206B1 (en) | The beamforming capability improved butler matrix using switch network | |
| EP3419104A1 (en) | Cellular communication systems having antenna arrays therein with enhanced half power beam width (hpbw) control | |
| CN114902493A (en) | Phased array module | |
| US7786948B2 (en) | Array antenna with embedded subapertures | |
| US20030090417A1 (en) | Phased array antenna with controllable amplifier bias adjustment and related methods | |
| CN110460343B (en) | Dual-beam transmitting assembly | |
| CN112583385A (en) | Variable gain broadband phase shifter | |
| US5689272A (en) | Method and system for producing antenna element signals for varying an antenna array pattern | |
| CN115765679A (en) | Low-additional-phase-shift numerical control attenuator with amplitude calibration function and design method | |
| CN204144404U (en) | Subminiature microwave broadband Adjustable Phase Shift attenuator | |
| CN104157933A (en) | Microminiature adjustable microwave broadband phase shift attenuator | |
| KR102019082B1 (en) | Four Channel Precise Phase Control Apparatus for mmWave Beamforming | |
| JP2012047492A (en) | Phased array antenna | |
| CN217159703U (en) | Low-noise phased array transceiving component receiving link architecture | |
| CN116915272B (en) | 64-channel phased array system and phase calibration method thereof | |
| CN113376622B (en) | Millimeter wave phased array radar with low link loss and detection method thereof | |
| KR20190087010A (en) | Phased array antenna | |
| US11764484B2 (en) | Phased array antenna apparatus and method | |
| US20220376678A1 (en) | Ultra-wideband attenuator with low phase variation and improved stability with respect to temperature variations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |