CN110459838B - Phase shifter, phased array antenna apparatus, and phase shifting method - Google Patents
Phase shifter, phased array antenna apparatus, and phase shifting method Download PDFInfo
- Publication number
- CN110459838B CN110459838B CN201910757848.1A CN201910757848A CN110459838B CN 110459838 B CN110459838 B CN 110459838B CN 201910757848 A CN201910757848 A CN 201910757848A CN 110459838 B CN110459838 B CN 110459838B
- Authority
- CN
- China
- Prior art keywords
- control switch
- phase
- node
- main line
- loading
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The embodiment of the invention discloses a phase shifter, phased array antenna equipment and a phase shifting method. In the phase shifter, a first branch line is connected with a third node of a second main line through a first loading control switch, and a second branch line is connected with a fourth node of the second main line through a second loading control switch; a third node of the second main line is grounded through the first phase adjustment control switch, and a fourth node of the second main line is grounded through the second phase adjustment control switch; the line length between the first node and the second node on the first main line, the line length between the third end and the third node on the second main line, the line length between the third node and the fourth node on the second main line and the line length between the fourth node and the fourth end on the second main line are all equal, so that the occupied area of the phase shifter is reduced, and the layout difficulty of the phase shifter is reduced.
Description
Technical Field
The embodiment of the invention relates to the communication technology, in particular to a phase shifter, phased array antenna equipment and a phase shifting method.
Background
With the gradual evolution of communication systems, phased array antennas, whether base station antennas or handset antennas, are used to obtain larger antenna gain and also reduce interference of communication signals with surrounding devices. In 5G communication systems, this trend has become increasingly clear. Therefore, the application of the phase shifter in the communication system will be more extensive.
Existing travelling wave phase shifters are typically provided with a plurality of different signal transmission paths, the electrical lengths of the different signal transmission paths being different. The path length corresponds to the difference of the length of the microwave passing through the phase shifter, so that the change of different phases is realized, and the phase shift purpose is achieved. The phase shifter needs switches to switch paths, when the phase states are many, the switches of the paths are needed, the realization difficulty is high, the loss is also large, and when the paths are many, the occupied area of the phase shifter is also large, so that the design layout is difficult.
Disclosure of Invention
The invention provides a phase shifter, a phased array antenna device and a phase shifting method, which aim to reduce the occupied area of the phase shifter and reduce the layout difficulty of the phase shifter.
In a first aspect, an embodiment of the present invention provides a phase shifter, including a first main line, a second main line, a first branch line, a second branch line, a first loading control switch, a second loading control switch, a first phase adjustment control switch, and a second phase adjustment control switch;
the first main line comprises a first end and a second end which are opposite, and a first node and a second node which are positioned on the first main line; the second main line comprises a third end and a fourth end which are opposite, and a third node and a fourth node which are positioned on the second main line;
a first end of the first main line is connected with the signal input end, and a second end of the first main line is connected with the signal output end;
a third end of the second main line is connected with a first node of the first main line, and a fourth end of the second main line is connected with a second node of the first main line;
the first branch line is connected with a third node of the second main line through the first loading control switch, and the second branch line is connected with a fourth node of the second main line through the second loading control switch;
a third node of the second main line is grounded through the first phase adjustment control switch, and a fourth node of the second main line is grounded through the second phase adjustment control switch;
the length of a line between a first node and a second node on the first main line, the length of a line between a third end and a third node on the second main line, the length of a line between the third node and a fourth node on the second main line, and the length of a line between the fourth node and a fourth end on the second main line are all equal.
In a second aspect, an embodiment of the present invention further provides a phased array antenna apparatus, including the phase shifter provided in the embodiment of the present invention.
In a third aspect, an embodiment of the present invention further provides a phase shifting method, which is applicable to the phase shifter provided in the embodiment of the present invention;
the phase shifting method comprises the following steps:
determining the phase shift quantity required by the current transmission signal;
determining the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading quantity control switch and each second loading quantity control switch according to the phase shift quantity required by the current transmission signal and a phase mapping table; the phase corresponding table comprises corresponding relations between phase shifting quantities and the on and off states of the switches in different combinations, and the phase shifting quantities capable of shifting the phases are recorded in a one-to-one correspondence mode when the switches are switched on and off according to the different combinations in advance;
according to the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch, the on-off states of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch are correspondingly adjusted, so that the loading amount of the standing wave is adjusted, and the phase shift amount required by the current transmission signal is obtained.
The first branch line, the second branch line, the first loading control switch and the second loading control switch are additionally arranged at specific positions in the phase shifter, so that the problems that the existing phase shifter often comprises a plurality of passages, the occupied area of the phase shifter is large, and the design layout is difficult are solved, and the purposes of reducing the occupied area of the phase shifter and reducing the layout difficulty of the phase shifter are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a phase shifter according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another phase shifter according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a phased array antenna apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart of a phase shifting method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a phase shifter according to an embodiment of the present invention. Referring to fig. 1, the phase shifter includes a first main line 11, a second main line 12, a first branch line 21, a second branch line 22, a first loading control switch 31, a second loading control switch 32, a first phase adjustment control switch 41, and a second phase adjustment control switch 42. The first main line 11 includes first and second opposite end ports 1 and 2, and first and second nodes a and b on the first main line 11; the second main line 12 comprises a third end and a fourth end which are opposite, and a third node c and a fourth node d which are positioned on the second main line 12; the first end Port1 of the first main line 11 is connected to a signal input terminal (not shown in fig. 1), and the second end Port2 of the first main line 11 is connected to a signal output terminal (not shown in fig. 1); a third end of the second main line 12 is connected with a first node a of the first main line 11, and a fourth end of the second main line 12 is connected with a second node b of the first main line 11; the first branch line 21 is connected to the third node c of the second main line 12 through the first loading control switch 31, and the second branch line 22 is connected to the fourth node d of the second main line 12 through the second loading control switch 32; the third node c of the second main line 12 is grounded through the first phase adjustment control switch 41, and the fourth node d of the second main line 12 is grounded through the second phase adjustment control switch 42; the line length between the first node a and the second node b on the first main line 11, the line length between the third terminal and the third node c on the second main line 12, the line length between the third node c and the fourth node d on the second main line 12, and the line length between the fourth node d and the fourth terminal on the second main line 12 are all equal.
A state where the transmission signal is transmitted only along the first main line 11 is defined as being phase-shifted by 0 °. The first phase adjustment control switch 41 and the second phase adjustment control switch 42 are used to control whether the transmission signal is phase-shifted. If the phase shift is not performed, the first phase adjustment control switch 41 and the second phase adjustment control switch 42 are turned on, and the transmission signal sequentially passes through the first end Port1 of the first main line 11, the first node a of the first main line 11, the second node b of the first main line 11, and the second end Port2 of the first main line 11 to be output. When phase shifting is required, the first phase adjustment control switch 41 and the second phase adjustment control switch 42 are turned off, a portion between the first node a and the second node b on the first main line 11 is short-circuited, and the transmitted signal sequentially passes through the first end Port1 of the first main line 11, the first node a on the first main line 11, the third end of the second main line 12, the third node c of the second main line 12, the fourth node d of the second main line 12, the fourth end of the second main line 12, the second node b of the first main line 11, and the second end Port2 of the first main line 11 to be output.
The first loading control switch 31 and the second loading control switch 32 are used to control whether the first branch 21 and the second branch 22 participate in the phase shifting, respectively. If the first branch line 21 and the second branch line 22 are required to participate in phase shifting, the first loading control switch 31 and the second loading control switch 32 are conducted; otherwise, the first and second loading control switches 31 and 32 are turned off.
The essence of adding the first branch line 21, the second branch line 22, the first loading control switch 31 and the second loading control switch 32 at specific positions in the phase shifter is to make the first branch line 21 and the second branch line 22 participate in phase shifting, so as to achieve the purpose of performing multiple-state phase shifting on the standing wave. Therefore, a plurality of paths do not need to be arranged, the occupied area of the phase shifter can be reduced, and the layout difficulty of the phase shifter is reduced.
Further, in order to substantially reduce the loss of the transmission signal in the phase shifter and improve the phase shifting precision, optionally, the length of the line between the first node a and the second node b on the first main line 11 is equal to one quarter of the wavelength of the center frequency point of the transmission signal of the phase shifter.
In the above technical solution, optionally, the first loading control switch 31, the second loading control switch 32, the first phase adjustment control switch 41, and the second phase adjustment control switch 42 are single-pole single-throw switches or single-pole multi-throw switches, which is not limited in this application. Further, the first loading control switch 31, the second loading control switch 32, the first phase adjustment control switch 41, and the second phase adjustment control switch 42 may be PIN diode switches or gallium arsenide switches.
Further, in order to implement phase shifting of multiple states, referring to fig. 1, it may be further provided that the phase shifter includes N first loading amount control switches 51 and N second loading amount control switches 52 (for example, N ═ 1 in fig. 1); one end of each of the N first loading amount control switches 51 is connected to the first branch line 21, and the other end is grounded; the positions of the nodes where the different first loading amount control switches 51 are connected with the first branch 21 are different; one end of each of the N second loading amount control switches 52 is connected to the second branch line 22, and the other end is grounded; different second loading volume control switches 52 connect to the second leg 22 at different node locations. Thus, the loading amount of the standing wave can be adjusted by adjusting the on or off state of the first loading amount control switch 51 and the second loading amount control switch 52, so that the phase shift of various different states can be realized; wherein N is a positive integer greater than or equal to 1
In order to realize the phase shift of multiple states, in addition to providing multiple path switches, there are two common methods in the prior art. One is realized by cascading a plurality of phase shifters. For example, if the phase shift of 0 to 359 ° is to be realized and the precision reaches 1 °, it is necessary to realize the cascade connection of a 180 ° phase shifter, a 90 ° phase shifter, a 45 ° phase shifter, a 22.5 ° phase shifter, an 11.25 ° phase shifter, a 5.625 ° phase shifter, an 2.8125 ° phase shifter, a 1.40625 ° phase shifter, and a 0.703125 ° phase shifter to realize the phase shift of all states within the precision guaranteed range. If the number of cascaded phase shifters is reduced, the accuracy is reduced. Obviously, the more phase shifters are cascaded, the larger the occupied area of the phase shifter is, and the more difficult the layout of the phase shifter is. Alternatively, this is achieved by connecting a reactive element to the phase shifter. But the loading of the reactive element is easily limited by the operating frequency.
Compared with the first method, the phase shifter provided by the application can realize the phase shifting of a plurality of states without cascading a plurality of phase shifters, can fully reduce the occupied area of the phase shifter, and reduces the design layout difficulty of the phase shifter. Compared with the second method, the phase shifter provided by the application does not adopt a reactance element, so that the limitation of the working frequency is avoided.
Fig. 2 is a schematic structural diagram of another phase shifter according to an embodiment of the present invention. Referring to fig. 2, N is greater than 1 in fig. 2. The phase adjustment is more flexible, the phase shift number is further increased, and the adjustment function of various phases is realized. Wherein, open a plurality of switches, can realize a more careful phase adjustment for the phase shifter has higher precision.
It should be noted that, in practical applications, when all switches are turned on, the phase shifter may obtain a phase state close to 360 °, and compared with the existing phase shifter using microstrip line loading close to full wavelength to implement phase shifting close to 360 °, the above technical solution may sufficiently reduce the volume of the phase shifter.
In the above-described technical solution, the number of states that the phase shifter can shift is determined by the number N of the first loading amount control switches 51 (or the second loading amount control switches 52) on the phase shifter. The larger N, the more specific number of phase-shifted states the phase shifter can shift. The number of cases determined by the on/off of each first load amount control switch 51 (or second load amount control switch 52) is 2NAnd (4) seed preparation. However, the number of phase-shifting states of the phase shifter is less than 2NAnd (4) seed preparation. This is because. In this 2NIn this case, a part of the signal transmitted over the antenna is very lossy and needs to be excluded.
Therefore, optionally, in the actual use process, it is necessary to record the state of the remaining loss within the design expectation and the phase shift amount that can shift the phase of the state in a one-to-one correspondence manner, so as to obtain the correspondence relationship between the phase shift amount and the on and off of each switch, which is used as the phase correspondence table.
When phase shifting is carried out, firstly, determining the phase shifting quantity required by the current transmission signal; secondly, determining the on-off conditions of a first loading control switch, a second loading control switch, a first phase adjustment control switch, a second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch according to the phase shift amount required by the current transmission signal and a phase mapping table; and finally, adjusting the on-off of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch according to the on-off conditions of the first loading control switch, the second loading control switch, each first loading amount control switch and each second loading amount control switch.
Similarly, in the above technical solution, the first loading amount control switch 51 and the second loading amount control switch 52 are single-pole single-throw switches or single-pole multi-throw switches, which is not limited in this application. Further, the first loading amount control switch 51 and the second loading amount control switch 52 may be PIN diode switches or gallium arsenide switches.
In the above technical solution, optionally, the length of the first branch line 21 is greater than one eighth of the wavelength of the central frequency point of the transmission signal of the phase shifter, and is less than the full wavelength of the central frequency point of the transmission signal of the phase shifter, so that the phase shifter has universality.
Optionally, one end of the first branch 21 away from the first loading control switch 31 is grounded; the end of the second leg 22 remote from the second load control switch 32 is grounded. This arrangement further enables the phase shifter to perform fine phase modulation, which would otherwise affect the accuracy of the phase adjustment due to the influence of the first branch line 21 and the second straight line 22 on the phases adjusted by the switches.
Optionally, the first main line 11, the second main line 12, the first branch line 21 and the second branch line 22 are all microstrip lines.
Based on the same inventive concept, the application also provides a phased array antenna device. Fig. 3 is a schematic structural diagram of a phased array antenna apparatus according to an embodiment of the present invention. Referring to fig. 3, the phased array antenna apparatus includes the phase shifter according to any one of the embodiments of the present invention.
Since the phased array antenna apparatus provided by the present invention includes any phase shifter provided by the embodiments of the present invention, the same or corresponding beneficial effects of the phase shifter included in the phased array antenna apparatus are achieved, and details are not repeated here.
With continued reference to fig. 3, the phased array antenna apparatus optionally further includes an ac power supply 10, a four-way power divider 20, four phase shifters 30, and four antennas 40. One end of the ac power supply 10 is grounded, and the other end is connected to the four-way power divider 20. Four antennas 40 are connected to the four-way power divider 20 through one phase shifter 30, respectively. In this way, different orientations of the four-element phased array antenna array can be achieved depending on the phase states of the four phase shifters 30.
In fig. 3, the phased array antenna apparatus includes four paths, which is only one specific example of the present application and is not a limitation of the present application. Further, in the phased array antenna apparatus, the phase shifters in different paths may be the same or different, and this is not limited in this application.
Based on the same inventive concept, the application also provides a phase shifting method. The phase shifting method is applicable to any phase shifter which comprises a first loading control switch, a second loading control switch, a first phase adjustment control switch, a second phase adjustment control switch, a first loading amount control switch and a second loading amount control switch.
Fig. 4 is a flowchart of a phase shifting method according to an embodiment of the present invention. Referring to fig. 4, the phase shifting method includes:
s1, determining the phase shift quantity required by the current transmission signal;
s2, determining the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch according to the phase shift amount required by the current transmission signal and a phase mapping table;
and S3, adjusting the on-off of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch according to the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch.
Since the phase shifting method provided by the present invention is applicable to any phase shifter including the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, the first loading amount control switch and the second loading amount control switch, which is provided by the embodiment of the present invention, the phase shifting method has the same or corresponding beneficial effects as the phase shifter to which the phase shifting method is applied, and details are not repeated here.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A phase shifter is characterized by comprising a first main line, a second main line, a first branch line, a second branch line, a first loading control switch, a second loading control switch, a first phase adjustment control switch and a second phase adjustment control switch;
the first main line comprises a first end and a second end which are opposite, and a first node and a second node which are positioned on the first main line; the second main line comprises a third end and a fourth end which are opposite, and a third node and a fourth node which are positioned on the second main line;
a first end of the first main line is connected with the signal input end, and a second end of the first main line is connected with the signal output end;
a third end of the second main line is connected with a first node of the first main line, and a fourth end of the second main line is connected with a second node of the first main line;
the first branch line is connected with a third node of the second main line through the first loading control switch, and the second branch line is connected with a fourth node of the second main line through the second loading control switch;
a third node of the second main line is grounded through the first phase adjustment control switch, and a fourth node of the second main line is grounded through the second phase adjustment control switch;
the length of a line between a first node and a second node on the first main line, the length of a line between a third end and a third node on the second main line, the length of a line between the third node and a fourth node on the second main line, and the length of a line between the fourth node and a fourth end on the second main line are all equal.
2. The phase shifter according to claim 1,
the length of a line between a first node and a second node on the first main line is equal to one fourth of the wavelength of a central frequency point of a transmission signal of the phase shifter.
3. The phase shifter of claim 1, wherein the first loading control switch, the second loading control switch, the first phase adjustment control switch, and the second phase adjustment control switch are PIN diode switches or gallium arsenide switches.
4. The phase shifter according to claim 1, further comprising N first loading amount control switches and N second loading amount control switches;
one end of each of the N first loading amount control switches is connected with the first branch line, and the other end of each of the N first loading amount control switches is grounded; different positions of nodes connected with the first branch line by the first loading amount control switch are different;
one end of each of the N second loading amount control switches is connected with the second branch line, and the other end of each of the N second loading amount control switches is grounded; different positions of nodes connected with the second branch line by the second loading amount control switch are different;
wherein N is a positive integer greater than or equal to 1.
5. The phase shifter of claim 4, wherein the first loading amount control switch and the second loading amount control switch are PIN diode switches or gallium arsenide switches.
6. The phase shifter according to claim 1,
the length of the first branch line is greater than one eighth of the wavelength of the phase shifter transmission signal center frequency point and less than the full wavelength of the phase shifter transmission signal center frequency point.
7. The phase shifter according to claim 1,
one end of the first branch line, which is far away from the first loading control switch, is grounded;
and one end of the second branch line, which is far away from the second loading control switch, is grounded.
8. The phase shifter according to claim 1,
the first main line, the second main line, the first branch line and the second branch line are all microstrip lines.
9. A phased array antenna device, characterized in that it comprises a phase shifter according to any one of claims 1-8.
10. A phase shifting method, which is applied to the phase shifter according to claim 4 or 5;
the phase shifting method comprises the following steps:
determining the phase shift quantity required by the current transmission signal;
determining the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading quantity control switch and each second loading quantity control switch according to the phase shift quantity required by the current transmission signal and a phase mapping table; the phase corresponding table comprises corresponding relations between phase shifting quantities and the on and off states of the switches in different combinations, and the phase shifting quantities capable of shifting the phases are recorded in a one-to-one correspondence mode when the switches are switched on and off according to the different combinations in advance;
according to the on-off conditions of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch, the on-off states of the first loading control switch, the second loading control switch, the first phase adjustment control switch, the second phase adjustment control switch, each first loading amount control switch and each second loading amount control switch are correspondingly adjusted, so that the loading amount of the standing wave is adjusted, and the phase shift amount required by the current transmission signal is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910757848.1A CN110459838B (en) | 2019-08-16 | 2019-08-16 | Phase shifter, phased array antenna apparatus, and phase shifting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910757848.1A CN110459838B (en) | 2019-08-16 | 2019-08-16 | Phase shifter, phased array antenna apparatus, and phase shifting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110459838A CN110459838A (en) | 2019-11-15 |
| CN110459838B true CN110459838B (en) | 2021-12-17 |
Family
ID=68487046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910757848.1A Active CN110459838B (en) | 2019-08-16 | 2019-08-16 | Phase shifter, phased array antenna apparatus, and phase shifting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110459838B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994102B (en) * | 2019-12-03 | 2021-06-08 | 重庆邮电大学 | Power divider with reconfigurable distribution path number and distribution ratio |
| CN111029686B (en) * | 2019-12-16 | 2021-07-20 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW494600B (en) * | 1999-09-30 | 2002-07-11 | Nippon Electric Co | Phase shifter capable of miniaturizing and method of manufacturing the same |
| CN1783713A (en) * | 2004-12-03 | 2006-06-07 | 南京理工大学 | Microwave millmeter wave broad band three decibel orthogonal digital phase shifter |
| US7642881B1 (en) * | 2006-03-08 | 2010-01-05 | Lockheed Martin Corporation | Vanadium oxide RF/microwave integrated switch suitable for use with phased array radar antenna |
| CN101651242A (en) * | 2009-01-09 | 2010-02-17 | 电子科技大学 | Miniaturized phase shifter for TD-SCDMA electrically controlled intelligent antenna |
| CN105789828A (en) * | 2016-03-22 | 2016-07-20 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile terminal |
| CN110011004A (en) * | 2019-03-20 | 2019-07-12 | 南京航空航天大学 | A kind of amount of phase shift distinguishes controllable double frequency phase shifter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623242U (en) * | 2009-11-06 | 2010-11-03 | 中国科学技术大学 | Microwave and millimeter wave multi-stub load line phase shifter |
| US8907745B2 (en) * | 2011-07-20 | 2014-12-09 | Viasat, Inc. | Transistor switches with single-polarity control voltage |
| TWM494600U (en) * | 2014-08-29 | 2015-02-01 | Long Dar Plastic Co Ltd | Face guard angle adjustment positioning device |
| CN109216835B (en) * | 2018-09-30 | 2021-06-01 | 华为技术有限公司 | Phase shifter, antenna feeder system and communication equipment |
-
2019
- 2019-08-16 CN CN201910757848.1A patent/CN110459838B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW494600B (en) * | 1999-09-30 | 2002-07-11 | Nippon Electric Co | Phase shifter capable of miniaturizing and method of manufacturing the same |
| CN1783713A (en) * | 2004-12-03 | 2006-06-07 | 南京理工大学 | Microwave millmeter wave broad band three decibel orthogonal digital phase shifter |
| US7642881B1 (en) * | 2006-03-08 | 2010-01-05 | Lockheed Martin Corporation | Vanadium oxide RF/microwave integrated switch suitable for use with phased array radar antenna |
| CN101651242A (en) * | 2009-01-09 | 2010-02-17 | 电子科技大学 | Miniaturized phase shifter for TD-SCDMA electrically controlled intelligent antenna |
| CN105789828A (en) * | 2016-03-22 | 2016-07-20 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile terminal |
| CN110011004A (en) * | 2019-03-20 | 2019-07-12 | 南京航空航天大学 | A kind of amount of phase shift distinguishes controllable double frequency phase shifter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110459838A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102270977A (en) | Digital-analog mixed phase-shift circuit | |
| US7538635B2 (en) | Quadrature hybrid circuit having variable reactances at the four ports thereof | |
| CN110190830B (en) | Dual-band miniaturized digital phase shifter | |
| CN110459838B (en) | Phase shifter, phased array antenna apparatus, and phase shifting method | |
| CN103414022B (en) | A kind of 3 × 3Butler matrix and 5 × 6Butler matrix | |
| JP2013504927A (en) | Simultaneous phase and amplitude control using triple stub topology and its implementation using RFMEMS technology | |
| CN110854482A (en) | High-frequency switch type phase shifter | |
| WO2021213385A1 (en) | Ferrite switch, microwave antenna, and electronic device | |
| Afroz et al. | 90° hybrid-coupler based phase-interpolation phase-shifter for phased-array applications at W-band and beyond | |
| Maloratsky | Electrically tunable switched-line diode phase shifters Part 1: Design procedure | |
| Stärke et al. | Continuous 360° vector modulator with passive phase generation for 140 GHz to 200 GHz G-band | |
| CN111293394A (en) | Ultra-wideband orthogonal switchable equal power dividing bridge | |
| EP0621650A1 (en) | A 90 degree phase shifter | |
| CN112688664A (en) | Broadband six-bit MMIC numerical control phase shifter | |
| CN111130488A (en) | Ultra-wideband phase-shifting circuit | |
| KR0168909B1 (en) | Electric power distributor synthesizer using matching stub | |
| US4499471A (en) | Reconfigurable dual mode network | |
| US5877659A (en) | 90° phase shifter apparatus and method using a directly coupled path and a switched path | |
| US5783975A (en) | Circuit selection device | |
| CN112271419B (en) | Ultra-wideband digital phase shifter with all-pass filter structure | |
| KR20040043291A (en) | Switched coupler type digital phase shifter using quadrature generator | |
| Anjos et al. | A 24-30 GHz Ultra-Compact Phase Shifter Using All-Pass Networks for 5G User Equipment | |
| CN112736379A (en) | Single-circuit multi-bit phase shifter based on inverted E structure | |
| CN114982076B (en) | Integrated circuit | |
| US7173503B1 (en) | Multibit phase shifter with active and passive phase bits, and active phase bit therefor |
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 |