CN113867019A - Liquid crystal phase shifter and manufacturing method thereof - Google Patents
Liquid crystal phase shifter and manufacturing method thereof Download PDFInfo
- Publication number
- CN113867019A CN113867019A CN202010623321.2A CN202010623321A CN113867019A CN 113867019 A CN113867019 A CN 113867019A CN 202010623321 A CN202010623321 A CN 202010623321A CN 113867019 A CN113867019 A CN 113867019A
- Authority
- CN
- China
- Prior art keywords
- microstrip line
- substrate
- liquid crystal
- phase shifter
- crystal phase
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 112
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 112
- 238000000034 method Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 8
- 230000009477 glass transition Effects 0.000 claims description 7
- 210000004027 cell Anatomy 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 4
- 210000002858 crystal cell Anatomy 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 17
- 238000004804 winding Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000004017 vitrification Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- 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
- H01Q3/36—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 with variable phase-shifters
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The embodiment of the application provides a liquid crystal phase shifter and a manufacturing method thereof, relates to the technical field of communication, and expands the bandwidth of one liquid crystal phase shifter unit by arranging two microstrip lines in one liquid crystal phase shifter unit to provide signals of two frequencies. A liquid crystal phase shifter, comprising: the phase shifter comprises a plurality of liquid crystal phase shifter units, a phase shifter unit and a phase shifter unit, wherein each liquid crystal phase shifter unit comprises a first microstrip line and a second microstrip line which are arranged in an insulating mode; the two ends of the first microstrip line are respectively a connecting end for receiving and a connecting end for transmitting, and the two ends of the second microstrip line are respectively a connecting end for receiving and a connecting end for transmitting.
Description
Technical Field
The application relates to the technical field of communication, in particular to a liquid crystal phase shifter and a manufacturing method thereof.
Background
At present, the liquid crystal phase shifter is used for adjusting the phase of electromagnetic waves and has wide application in the fields of radars, missile attitude control, accelerators, communication, instruments and even music and the like. Although the microstrip antenna has the advantages of small volume, light weight and the like, the microstrip antenna has narrow relative bandwidth, so that the application field of the microstrip antenna is limited.
Disclosure of Invention
The embodiment of the application provides a liquid crystal phase shifter and a manufacturing method thereof, and two microstrip lines are arranged in one liquid crystal phase shifter unit to provide signals of two frequencies, so that the bandwidth of one liquid crystal phase shifter unit is expanded.
In one aspect, an embodiment of the present application provides a liquid crystal phase shifter, including:
the phase shifter comprises a plurality of liquid crystal phase shifter units, a phase shifter unit and a phase shifter unit, wherein each liquid crystal phase shifter unit comprises a first microstrip line and a second microstrip line which are arranged in an insulating mode;
the two ends of the first microstrip line are respectively a connecting end for receiving and a connecting end for transmitting, and the two ends of the second microstrip line are respectively a connecting end for receiving and a connecting end for transmitting.
In a second aspect, an embodiment of the present application further provides a method for manufacturing a liquid crystal phase shifter, including:
forming a plurality of liquid crystal phase shifter cells, each of the liquid crystal phase shifter cells comprising:
the surface of the second substrate is provided with a first microstrip line and a second microstrip line which are arranged in an insulating mode, the two ends of the first microstrip line are respectively a connecting end used for receiving and a connecting end used for transmitting, and the two ends of the second microstrip line are respectively a connecting end used for receiving and a connecting end used for transmitting.
According to the liquid crystal phase shifter and the manufacturing method thereof in the embodiment of the application, the transceiving function of different frequency signals can be realized through two mutually independent microstrip lines with transceiving functions in the same liquid crystal phase shifter unit, so that the bandwidth of one liquid crystal phase shifter unit is expanded, and the application field of the liquid crystal phase shifter is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a top view of a liquid crystal phase shifter according to an embodiment of the present application;
FIG. 2 is a partially enlarged schematic view of the liquid crystal phase shifter element of FIG. 1;
FIG. 3 is a schematic cross-sectional view along AA' of FIG. 2;
fig. 4 is a schematic diagram of another microstrip line winding manner in the embodiment of the present application;
fig. 5 is a schematic diagram of another microstrip line winding manner in the embodiment of the present application;
fig. 6 is a schematic diagram of another microstrip line winding manner in the embodiment of the present application;
FIG. 7 is a schematic cross-sectional view along direction BB' in FIG. 2;
FIG. 8 is a schematic view of another cross-sectional structure along direction AA' in FIG. 2;
FIG. 9 is a schematic view of another cross-sectional structure along direction BB' in FIG. 2;
FIG. 10 is a schematic view of another cross-sectional structure along direction BB' in FIG. 2;
FIG. 11 is a top view of another liquid crystal phase shifter in an embodiment of the present application;
FIG. 12 is a schematic cross-sectional view of a portion of the area of FIG. 11;
FIG. 13 is a schematic diagram of a liquid crystal phase shifter unit according to an embodiment of the present application;
FIG. 14 is a schematic flow chart illustrating a method for fabricating a liquid crystal phase shifter according to an embodiment of the present application;
FIG. 15 is a flow chart illustrating a method for fabricating another liquid crystal phase shifter according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application,
the terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1, 2 and 3, fig. 1 is a top view of a liquid crystal phase shifter in an embodiment of the present invention, fig. 2 is a partially enlarged schematic view of a liquid crystal phase shifter unit in fig. 1, and fig. 3 is a schematic view of a cross-sectional structure along direction AA' in fig. 2, in which an embodiment of the present invention provides a liquid crystal phase shifter, including: the phase shifter comprises a plurality of liquid crystal phase shifter units 10, wherein each liquid crystal phase shifter unit 10 comprises a first microstrip line 11 and a second microstrip line 12 which are arranged in an insulating mode; the two ends of the first microstrip line 11 are a connection end 13 for receiving and a connection end 13 for transmitting respectively, and the two ends of the second microstrip line 12 are a connection end 13 for receiving and a connection end 13 for transmitting respectively.
Specifically, for the same liquid crystal phase shifter unit 10, the first microstrip line 11 and the second microstrip line 12 are used to respectively realize transmission of two types of electromagnetic wave signals, in the transmission process of the electromagnetic wave signals, the phase shift effect is realized through deflection of liquid crystal, the first microstrip line 11 and the second microstrip line 12 respectively have independent receiving end and transmitting end, transmission and reception of one type of frequency electromagnetic wave signals can be realized through the first microstrip line 11, transmission and reception of another type of frequency electromagnetic wave signals can be realized through the second microstrip line 12, that is, the transceiving function of different frequency signals is realized in the same liquid crystal phase shifter unit 10.
The liquid crystal phase shifter in the embodiment of the application can realize the transceiving function of different frequency signals in the same liquid crystal phase shifter unit through two mutually independent microstrip lines with transceiving function, thereby expanding the bandwidth of one liquid crystal phase shifter unit and increasing the application field of the liquid crystal phase shifter.
Alternatively, the first microstrip line 11 and the second microstrip line 12 are alternately wound in the same liquid crystal phase shifter unit. The first microstrip line 11 and the second microstrip line 12 are wound in a staggered manner, so that the occupied space between the two is small, and the mutual influence of signals between the two is small, thereby realizing the transceiving function of two frequency signals in a limited liquid crystal phase shifter unit.
Optionally, the first microstrip line 11 and the second microstrip line 12 are disposed at equal intervals, and the first microstrip line and the second microstrip line are wound in a staggered manner, so that mutual influence of signals between the two can be further reduced, and the occupied space between the two is small.
Specifically, in the structures illustrated in fig. 1 and fig. 2, the first microstrip line 11 and the second microstrip line 12 adopt a square spiral winding method, that is, the first microstrip line 11 and the second microstrip line 12 after winding are entirely square, but the winding manner between the first microstrip line 11 and the second microstrip line 12 in the embodiment of the present application is not limited, for example, as shown in fig. 4 to fig. 6, fig. 4 is a schematic diagram of another winding manner of a microstrip line in the embodiment of the present application, fig. 5 is a schematic diagram of another winding manner of a microstrip line in the embodiment of the present application, fig. 6 is a schematic diagram of another winding manner of a microstrip line in the embodiment of the present application, in the structure illustrated in fig. 4, the first microstrip line 11 and the second microstrip line 12 adopt a triangular spiral winding method, in the structure illustrated in fig. 5, the first microstrip line 11 and the second microstrip line 12 adopt a circular spiral winding method, in the structure shown in fig. 6, the first microstrip line 11 and the second microstrip line 12 adopt a comb-tooth-shaped winding method.
Optionally, as shown in fig. 3, the liquid crystal phase shifter further includes: a first substrate 21 and a second substrate 22 opposite to the first substrate 21; a liquid crystal layer 3 between the first substrate 21 and the second substrate 22; a fixed potential electrode layer 4 on a side of the first substrate 21 adjacent to the second substrate 22; the first microstrip line 11 and the second microstrip line 12 are located on one side of the second substrate 22 close to the first substrate 21. An alignment film 5 can be arranged between the microstrip line and the liquid crystal layer 3, an alignment film 5 can be arranged between the fixed potential electrode layer 4 and the liquid crystal layer 3, the alignment film 5 is used for carrying out initial alignment on liquid crystal in the liquid crystal layer 3, the fixed potential electrode layer 4 is used for providing fixed potential, for example, ground potential, the first microstrip line 11 and the second microstrip line 12 are used for providing potential for controlling deflection of the liquid crystal besides being used for transmitting electromagnetic wave signals, in the working process of the liquid crystal phase shifter, the liquid crystal deflects under the control of voltage between the microstrip line and the fixed potential electrode layer 4, and the phase shifting function of the electromagnetic wave signals can be realized through the deflection of the liquid crystal.
Alternatively, as shown in fig. 7, fig. 7 is a schematic cross-sectional view of the second substrate 22 in the direction of BB' in fig. 2, and the second substrate 22 has a through hole 6 corresponding to at least one connection terminal 13; the elements on the side of the second substrate 22 remote from the first substrate 21 are connected to the corresponding connection terminals 13 through the through holes 6. The connection in the embodiments of the present application includes both direct connection and coupling connection. Since the same liquid crystal phase shifter unit 10 in the embodiment of the present application includes two microstrip lines, and each microstrip line needs to be connected to a corresponding element to implement a transceiving function, in order to implement signal transmission between the two microstrip lines and the corresponding element, the connection between the element and the corresponding microstrip line can be implemented by arranging the through hole 6 on the second substrate 22, so that signal interference between different microstrip lines can be reduced, and in addition, the differential loss of signal transmission can be reduced. In other embodiments, the element can also be coupled directly to the connection end of the microstrip line without drilling.
Alternatively, as shown in fig. 7, the component is a power divider network 7, the power divider network 7 may be electrically connected to the connection end 13 of the corresponding microstrip line for transmission through the corresponding through hole 6, the power divider network 7 is configured to transmit an electromagnetic wave signal, where the electromagnetic wave signal is a high-frequency signal, and in addition, the power divider network 7 may also multiplex and transmit a voltage signal for controlling liquid crystal deflection at a low frequency, and of course, in other realizable embodiments, the voltage signal for controlling liquid crystal deflection may also be provided to the microstrip line in other ways.
Alternatively, as shown in fig. 8, fig. 8 is another schematic cross-sectional structure view along direction AA' in fig. 2, where a is a distance between the first microstrip line 11 and the fixed-potential electrode layer 5, b is a distance between the second microstrip line 12 and the fixed-potential electrode layer 5, and a < b.
Specifically, the capacitance value can be changed by adjusting the effective dielectric constant of the medium in the transmission process of the electromagnetic wave, and then the phase shift constant of the electromagnetic wave in the transmission process can be changed, and therefore, the capacitance value can be specifically realized by changing the thickness of the liquid crystal layer 3, that is, the distance between the microstrip line and the fixed potential electrode layer 5 is changed, the transmission frequency of the electromagnetic wave is different, and the capacitance value can be realized by changing and adjusting the effective dielectric constant of the corresponding medium, for example, the frequency of the electromagnetic wave signal transmitted by the first microstrip line 11 and the second microstrip line 12 is different, and therefore, the distance between the microstrip line and the fixed potential electrode layer 5 corresponding to the microstrip line and the fixed potential electrode layer can be set to be different, that is, a and b are different, so as to adapt to different frequencies of the electromagnetic wave signal.
Alternatively, as shown in fig. 8, on one side surface of the first substrate 21 close to the second substrate 22, the position of the second microstrip line 12 is provided with a groove relative to the position of the first microstrip line 11, for example, in fig. 8, the upper surface of the first substrate 21 is recessed downward at the second microstrip line 12 to form a groove, so that the distance between the second microstrip line 12 and the fixed-potential electrode plate 5 is increased; and/or, on one side surface of the second substrate 22 close to the first substrate 21, the position of the second microstrip line 12 is provided with a groove relative to the position of the first microstrip line 11, for example, in fig. 8, the lower surface of the second substrate 22 is recessed upwards at the second microstrip line 12 to form a groove, so that the distance between the second microstrip line 12 and the fixed-potential electrode plate 5 is increased.
Optionally, the thicknesses of the first microstrip line 11 and the second microstrip line 12 are different; and/or the line widths of the first microstrip line 11 and the second microstrip line 12 are different; and/or the lengths of the first microstrip line 11 and the second microstrip line 12 are different. Besides adjusting the effective dielectric constant of the medium to adapt to different electromagnetic wave signal frequencies, the structural characteristics of the microstrip line can be adjusted to adapt to different electromagnetic wave signal frequencies, including thickness, line width and length.
Alternatively, as shown in fig. 7, the through hole 6 on the second substrate 22 is filled with a polyimide material 8, and the polyimide material 8 is a material with a low glass transition point, and can be softened when the temperature is increased to the glass transition point so as to be filled in the through hole 6, and is converted into a solid state when the temperature is reduced to below the glass transition point, thereby achieving the sealing of the through hole 6.
Alternatively, as shown in fig. 9, fig. 9 is another schematic cross-sectional structure view along direction BB' in fig. 2, and the liquid crystal phase shifter further includes: a first radiator 91 and a second radiator (not shown in fig. 9) located on a side of the second substrate 22 away from the first substrate 21, where the first radiator 91 is coupled to the connection end 13 for reception in the first microstrip line 11, and the second radiator is coupled to the connection end for reception in the second microstrip line, where the structure shown in fig. 9 does not include a connection device and a through hole, and the first radiator 91 is directly coupled to the connection end 13 for reception in the first microstrip line 11; alternatively, as shown in fig. 10, fig. 10 is another schematic cross-sectional structure view along the direction BB' in fig. 2, and the liquid crystal phase shifter further includes: the first radiator 91 and the second radiator (not shown in fig. 10) are located on one side of the first substrate 21, which is away from the second substrate 22, a first hollow area corresponding to the first radiator 91 and a second hollow area corresponding to the second radiator are provided on the fixed potential electrode layer 4, the first radiator 91 is coupled to the connection end 13 for receiving in the first microstrip line 11 through the first hollow area, the first radiator 91 is directly coupled to the connection end 13 for receiving in the first microstrip line 11 through the first hollow area, and the hollow areas are used for avoiding shielding signals and ensuring coupling connection between the radiators and the microstrip lines.
Alternatively, as shown in fig. 11 and 12, fig. 11 is a top view of another liquid crystal phase shifter in an embodiment of the present application, and fig. 12 is a schematic cross-sectional view of a partial region in fig. 11, where the liquid crystal phase shifter further includes: the power divider comprises a first power divider network 101 and a second power divider network 102 which are insulated from each other, wherein the first power divider network 101 is connected to a connection end 13 for transmitting in the first microstrip line 11, and the second power divider network 102 is connected to a connection end for transmitting in the second microstrip line 12.
Specifically, a first microstrip line 11 in each liquid crystal phase shifter unit 10 is connected to a first power divider network 101, a second microstrip line 12 in each liquid crystal phase shifter unit 10 is connected to a second power divider network 102, the first power divider network 101 is configured to provide a signal with a corresponding frequency to the first microstrip line 11, and the second power divider network 102 is configured to provide a signal with a corresponding frequency to the second microstrip line 12. It should be noted that, the connection end for transmitting of the first microstrip line and the connection end for transmitting of the second microstrip line are respectively connected to the first power divider network and the second power divider network, and at this time, the connection end for transmitting of the first microstrip line and the connection end for transmitting of the second microstrip line are arranged in the innermost turn coil of the multi-turn coil of the microstrip line, in such an arrangement manner, the connection end for receiving of the first microstrip line and the connection end for receiving of the second microstrip line are arranged in the outermost turn coil of the multi-turn coil, and when being respectively coupled to the first radiator and the second radiator, a certain distance can be ensured between the first radiator and the second radiator, so as to ensure that the two radiators have sufficient space arrangement and avoid signal interference, and of course, the four connection ends of the first microstrip line and the second microstrip line in each phase shifter unit can also be designed according to actual requirements, for example, the innermost turn of the multi-turn coil of the microstrip line is provided with a connection terminal for receiving, and the outermost turn of the multi-turn coil is provided with a connection terminal for transmitting, which is not limited herein. In addition, optionally, the lengths of the first microstrip line and the second microstrip line may be the same or different, and when the lengths are the same, the winding mode of the first microstrip line and the second microstrip line may be designed in a centrosymmetric manner, so that the design is simpler. In the structure shown in fig. 12, through providing the through hole 6 on the second substrate 22, then, the power divider network is manufactured, and the metal material corresponding to the power divider network directly contacts the microstrip line through the through hole 6, so as to implement the connection between the power divider network and the corresponding connection terminal 13. However, the connection method between the power divider network and the microstrip line is not limited in the embodiments of the present application, for example, in other realizable implementations, the power divider network may be connected to the microstrip line by inserting a through hole through a connecting device, and the power divider network is connected to the connecting device, so as to realize the connection of the microstrip line through the connecting device. In addition, the power divider network may be disposed on a side of the second substrate 22 away from the first substrate 21, or may be disposed on a side of the first substrate 21 away from the second substrate 22.
Optionally, the first power divider network 101 and the second power divider network 102 are multiplexed with a high frequency signal and a low frequency signal, and the low frequency signal is used for driving liquid crystals in the liquid crystal layer to rotate. In other practical embodiments, the first power divider network 101 and the second power divider network 102 may provide only a high frequency signal without multiplexing a low frequency signal, and provide a low frequency signal for controlling the rotation of the liquid crystal by other means such as a driving chip or a circuit board.
Optionally, as shown in fig. 13, fig. 13 is a schematic structural diagram of a liquid crystal phase shifter unit in an embodiment of the present application, where the liquid crystal phase shifter further includes: a connection device 100 corresponding to each through hole, the connection device 100 passing through the second substrate through the corresponding through hole; the elements are connected or coupled to corresponding connection devices 100.
Specifically, it should be noted that fig. 13 omits a partial structure in the liquid crystal phase shifter, and only illustrates the first microstrip line 11, the second microstrip line 12, and the four connection devices 100 in the liquid crystal phase shifter unit, that is, for example, in the same liquid crystal phase shifter unit, the second substrate has two through holes corresponding to two ends of the first microstrip line 11 and two through holes corresponding to two ends of the second microstrip line 12, respectively, a corresponding connecting device 100 is disposed in each through hole, the connecting device 100 is connected to the corresponding connecting end through the through hole, outside the first substrate and the second substrate, signal lines connected correspondingly to each of the connection devices 100 are provided, for connecting or coupling the elements at the distal end to the connection ends of the corresponding microstrip lines via the connection device 100, the signal can be any signal line for realizing signal transmission, such as a radio frequency signal line or a cable line. The connector 100 has a structure with an inner core for signal transmission and an outer shell structure with a port for easy fixing and connection, and the outer shell structure surrounding the inner core can also play a role in shielding external signals and protecting. The connection device 100 functions to connect a microstrip line to a signal line for supplying a radio frequency signal or to a signal line for supplying a radiation signal. It should be noted that fig. 15 illustrates that two ends of a first microstrip line are respectively a receiving connection end and a transmitting connection end, two ends of a second microstrip line are respectively a receiving connection end and a transmitting connection end, and the four ports are all provided with a connection device 100, and the connection device can be connected with a signal line for providing a radio frequency signal and a signal line for radiating a signal; optionally, at least one of the four ports is provided with a connecting device 100, at this time, if the connecting end of the first microstrip line for receiving is provided with the connecting device 100, the connecting device 100 may connect a signal line of a radiation signal, the remaining three ports, the connecting end for transmitting may connect to the power divider network, and the connecting end for receiving is coupled to the radiator; at this time, if the connection end of the first microstrip line for transmission is provided with the connection device 100, the connection device 100 can be connected to a signal line of a radio frequency signal, the remaining three ports, the connection end for transmission can be connected to a power divider network, and the connection end for reception is coupled to a radiator; at this time, if the connection end for receiving of the first microstrip line and the connection end for transmitting of the first microstrip line are both provided with the connection device 100, the connection device 100 is respectively connected with the signal line and the radio frequency signal line of the radiation signal, the connection end for transmitting can be connected with the power divider network, and the connection end for receiving is coupled with the radiator; in addition, in addition to the structure provided with the connection device, a connection device may not be provided, for example, in the same liquid crystal phase shifter unit, both ends of the first microstrip line and both ends of the second microstrip line are not provided with the connection device, and at this time, each port is directly connected to the corresponding device, for example, a connection end of the first microstrip line for transmission is connected to the first power divider network, a connection end of the first microstrip line for reception is coupled to the first radiator, a connection end of the second microstrip line for transmission is connected to the second power divider network, and a connection end of the second microstrip line for reception is coupled to the second radiator. Here, only a few cases are exemplified, and other combination setting manners for setting the connection device, the radiator, and the power divider network may be adjusted according to actual needs, which is not limited herein.
In addition to the above-mentioned connection with the corresponding connection device 100 through the signal line, the power divider network and the radiator other than the second substrate may be directly connected or coupled to both ends of the corresponding microstrip line, so that there is no need to provide a corresponding connection device, and the power divider network and the radiator may be disposed on the side of the first substrate away from the second substrate or on the side of the second substrate away from the first substrate.
In addition, the two modes of connection through signal lines or connection without signal lines can be combined, for example, in the same liquid crystal phase shifter unit, the power divider network is connected to the connecting ends of the two microstrip lines for transmission, and the two signal lines are respectively connected to the connecting ends of the two microstrip lines for reception through two connecting devices; or, the two radiators are respectively coupled to the connecting ends of the two microstrip lines for receiving, and the two signal lines are respectively connected to the connecting ends of the two microstrip lines for transmitting through the connecting device.
As shown in fig. 14, fig. 14 is a schematic flow chart of a method for fabricating a liquid crystal phase shifter in an embodiment of the present application, and a method for fabricating a liquid crystal phase shifter in an embodiment of the present application includes: forming a plurality of liquid crystal phase shifter cells, each liquid crystal phase shifter cell comprising: step 001, forming a first microstrip line 11 and a second microstrip line 12 which are arranged in an insulating manner on the surface of the second substrate 22, where two ends of the first microstrip line 11 are a receiving connection end and a transmitting connection end, respectively, and two ends of the second microstrip line 12 are a receiving connection end and a transmitting connection end, respectively.
Specifically, in the execution process of step 001, a metal layer satisfying the skin effect is deposited on the surface of the second substrate 22, and then the metal layer is patterned, and for one microstrip line, the thickness of the metal layer can be determined according to the transmit-receive frequency of the microstrip line, and if the receive frequency and the transmit frequency of the same microstrip line are different, the thickness of the metal layer corresponding to the lower frequency is selected as the thickness of the corresponding microstrip line, so that the microstrip line can satisfy the transmit-receive frequency at the same time.
According to the manufacturing method of the liquid crystal phase shifter in the embodiment of the application, the transceiving function of different frequency signals can be realized through two mutually independent microstrip lines with transceiving functions in the same liquid crystal phase shifter unit, so that the bandwidth of one liquid crystal phase shifter unit is expanded, and the application field of the liquid crystal phase shifter is increased.
Alternatively, as shown in fig. 2, 4-6, the first microstrip line 11 and the second microstrip line 12 are wound alternately.
Optionally, as shown in fig. 14, the manufacturing method further includes:
Optionally, as shown in fig. 14, the manufacturing method further includes:
step 004, filling a filling material into the through hole 6 of the second substrate 22, wherein the filling material can be a polyimide material 8 for example;
Optionally, as shown in fig. 14, the manufacturing method further includes:
In particular, vitrification means vitrification, in which the filler material is softened when heated above its glass transition point and is solidified when its temperature drops below its glass transition point, and in the embodiment of the present application, the connector device 100 is fixed while the through-hole 6 is sealed by using such a characteristic of the filler material.
Optionally, as shown in fig. 14, the manufacturing method further includes:
a first power divider network (not shown in fig. 14) and a second power divider network (not shown in fig. 14) are formed on a side of the second substrate 22 away from the first microstrip line 11 and the second microstrip line 12, the first power divider network is connected to the connection end for transmission in the first microstrip line 11 through the corresponding connection device 100, and the second power divider network is connected to the connection end for transmission in the second microstrip line 12 through the corresponding connection device 100.
Optionally, as shown in fig. 14, after step 006, the manufacturing method further includes:
a first radiator (not shown in fig. 14) coupled to the connection terminal for reception in the first microstrip line 11 through the corresponding connection device 100 and a second radiator (not shown in fig. 14) coupled to the connection terminal for reception in the second microstrip line 12 through the corresponding connection device 100 are formed on a side of the second substrate 22 away from the first microstrip line 11 and the second microstrip line 12.
Alternatively, as shown in fig. 15, fig. 15 is a schematic flow chart of a method for fabricating a liquid crystal phase shifter according to an embodiment of the present application, and after step 003, the method further includes:
after the process of filling a material in each through hole of a second substrate on which a first power divider network and a second power divider network are formed, and sealing each through hole on the second substrate, the method further includes:
Optionally, before the process of filling a material in each through hole 6 of the second substrate 22 formed with the first power divider network and the second power divider network, so that each through hole 6 on the second substrate 22 is sealed, the method further includes: a first radiator (not shown in fig. 15) coupled to the connection end for reception in the first microstrip line 11 and a second radiator (not shown in fig. 15) coupled to the connection end for reception in the second microstrip line 12 are formed on a side of the second substrate 22 away from the first microstrip line 11 and the second microstrip line 12.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (23)
1. A liquid crystal phase shifter, comprising:
the phase shifter comprises a plurality of liquid crystal phase shifter units, a phase shifter unit and a phase shifter unit, wherein each liquid crystal phase shifter unit comprises a first microstrip line and a second microstrip line which are arranged in an insulating mode;
the two ends of the first microstrip line are respectively a connecting end for receiving and a connecting end for transmitting, and the two ends of the second microstrip line are respectively a connecting end for receiving and a connecting end for transmitting.
2. The liquid crystal phase shifter as claimed in claim 1,
the first microstrip line and the second microstrip line are wound in a staggered mode.
3. The liquid crystal phase shifter of claim 2, further comprising:
a first substrate and a second substrate opposite to the first substrate;
a liquid crystal layer between the first substrate and the second substrate;
the fixed potential electrode layer is positioned on one side of the first substrate, which is close to the second substrate;
the first microstrip line and the second microstrip line are positioned on one side of the second substrate close to the first substrate.
4. The liquid crystal phase shifter as claimed in claim 3,
the second substrate is provided with a through hole corresponding to at least one connecting end;
and the element is positioned on one side of the second substrate far away from the first substrate and is connected to the corresponding connecting end through the through hole.
5. The liquid crystal phase shifter as claimed in claim 4,
the element is a power divider network.
6. The liquid crystal phase shifter as claimed in claim 2,
the first microstrip line and the second microstrip line are arranged at equal intervals.
7. The liquid crystal phase shifter as claimed in claim 3,
the distance between the first microstrip line and the fixed potential electrode layer is a, the distance between the second microstrip line and the fixed potential electrode layer is b, and a is smaller than b.
8. The liquid crystal phase shifter as recited in claim 7,
a groove is formed in the surface of one side, close to the second substrate, of the first substrate, and the position of the second microstrip line is opposite to the position of the first microstrip line;
and/or a groove is formed in the surface of one side, close to the first substrate, of the second substrate, and the position of the second microstrip line is opposite to the position of the first microstrip line.
9. The liquid crystal phase shifter as claimed in claim 3,
the thicknesses of the first microstrip line and the second microstrip line are different;
and/or the line widths of the first microstrip line and the second microstrip line are different;
and/or the lengths of the first microstrip line and the second microstrip line are different.
10. The liquid crystal phase shifter as claimed in claim 4,
and polyimide materials are filled in the through holes on the second substrate.
11. A liquid crystal phase shifter as recited in claim 3, further comprising:
the first radiator and the second radiator are positioned on one side of the second substrate, which is far away from the first substrate, the first radiator is coupled to the connecting end used for receiving in the first microstrip line, and the second radiator is coupled to the connecting end used for receiving in the second microstrip line;
or, be located first irradiator and second irradiator that first base plate kept away from second base plate one side, be provided with on the fixed potential electrode layer with first fretwork area that first irradiator corresponds and with the second fretwork area that the second irradiator corresponds, first irradiator pass through first fretwork area couple in the link that is used for receiving in the first microstrip line, the second irradiator pass through second fretwork area couple in the link that is used for receiving in the second microstrip line.
12. A liquid crystal phase shifter as recited in claim 3, further comprising:
the first power divider network is connected to the connecting end of the first microstrip line for transmitting, and the second power divider network is connected to the connecting end of the second microstrip line for transmitting.
13. The liquid crystal phase shifter as recited in claim 12,
the first power divider network and the second power divider network are multiplexed with a high-frequency signal and a low-frequency signal, and the low-frequency signal is used for driving liquid crystals in the liquid crystal layer to rotate.
14. The liquid crystal phase shifter of claim 4, further comprising:
a connection device corresponding to each of the through holes, the connection device penetrating through the second substrate through the corresponding through hole;
the elements are connected or coupled to the corresponding connection devices.
15. A method for manufacturing a liquid crystal phase shifter is characterized by comprising the following steps:
forming a plurality of liquid crystal phase shifter cells, each of the liquid crystal phase shifter cells comprising:
the surface of the second substrate is provided with a first microstrip line and a second microstrip line which are arranged in an insulating mode, the two ends of the first microstrip line are respectively a connecting end used for receiving and a connecting end used for transmitting, and the two ends of the second microstrip line are respectively a connecting end used for receiving and a connecting end used for transmitting.
16. The method of claim 15,
the first microstrip line and the second microstrip line are wound in a staggered mode.
17. The method of claim 16, further comprising:
forming a fixed potential electrode layer on the surface of the first substrate;
after the first microstrip line and the second microstrip line which are arranged in an insulating way are formed on the surface of the second substrate, the method further comprises the following steps: and forming a through hole corresponding to at least one of the connection terminals on the second substrate.
18. The method of claim 17, further comprising:
filling a filling material into the through hole of the second substrate;
after the filling of the filling material into the through-holes of the second substrate, the first substrate and the second substrate are boxed to form a liquid crystal cell.
19. The method of claim 18, further comprising:
and heating to enable the filling material in the through hole of the second substrate to reach a glass transition point, and inserting a connecting device into the through hole of the second substrate so that the connecting device is connected to the corresponding connecting end through the through hole.
20. The method of claim 19, further comprising:
and forming a first power divider network and a second power divider network on one side of the second substrate, which is far away from the first microstrip line and the second microstrip line, wherein the first power divider network is connected to a connection end for transmitting in the first microstrip line through the corresponding connection device, and the second power divider network is connected to a connection end for transmitting in the second microstrip line through the corresponding connection device.
21. The method of claim 19, further comprising:
and a first radiator and a second radiator are formed on one side of the second substrate, which is far away from the first microstrip line and the second microstrip line, the first radiator is coupled to a connecting end for receiving in the first microstrip line through the corresponding connecting device, and the second radiator is coupled to a connecting end for receiving in the second microstrip line through the corresponding connecting device.
22. The method of claim 17, further comprising:
a first power divider network and a second power divider network are formed on one side of the second substrate, which is far away from the first microstrip line and the second microstrip line, the first power divider network is connected to a connecting end used for transmitting in the first microstrip line through a through hole in the second substrate, and the second power divider network is connected to a connecting end used for transmitting in the second microstrip line through a through hole in the second substrate;
filling a material in each through hole of a second substrate on which the first power divider network and the second power divider network are formed, so that each through hole on the second substrate is sealed;
after the process of filling a material in each through hole of the second substrate on which the first power divider network and the second power divider network are formed, so that each through hole on the second substrate is sealed, the method further includes:
and forming the first substrate and the second substrate into a liquid crystal box through box pairing.
23. The method of claim 22,
before the process of filling a material in each through hole of the second substrate on which the first power divider network and the second power divider network are formed, so that each through hole on the second substrate is sealed, the method further includes:
and a first radiator and a second radiator are formed on one side of the second substrate, which is far away from the first microstrip line and the second microstrip line, the first radiator is coupled to the connecting end used for receiving in the first microstrip line, and the second radiator is coupled to the connecting end used for receiving in the second microstrip line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623321.2A CN113867019B (en) | 2020-06-30 | 2020-06-30 | Liquid crystal phase shifter and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623321.2A CN113867019B (en) | 2020-06-30 | 2020-06-30 | Liquid crystal phase shifter and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113867019A true CN113867019A (en) | 2021-12-31 |
| CN113867019B CN113867019B (en) | 2024-05-07 |
Family
ID=78980967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010623321.2A Active CN113867019B (en) | 2020-06-30 | 2020-06-30 | Liquid crystal phase shifter and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113867019B (en) |
Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249220A (en) * | 1968-03-09 | 1971-10-13 | Asahi Chemical Ind | A process for producing elastic foam moulded articles |
| US4964701A (en) * | 1988-10-04 | 1990-10-23 | Raytheon Company | Deflector for an optical beam |
| WO1998032148A1 (en) * | 1997-01-16 | 1998-07-23 | Sony Corporation | Method of manufacturing image display |
| JPH11103201A (en) * | 1997-09-29 | 1999-04-13 | Mitsui Chem Inc | Phase shifter, phase shifter array and phased array antenna system |
| TW200610226A (en) * | 2004-09-01 | 2006-03-16 | Gemtek Technology Co Ltd | Coupled dual-frequency antenna |
| CN101053113A (en) * | 2005-03-30 | 2007-10-10 | 松下电器产业株式会社 | Transmission line |
| TW200801648A (en) * | 2006-06-02 | 2008-01-01 | Au Optronics Corp | Array substrate and panel of liquid crystal display |
| US20080252545A1 (en) * | 2007-04-10 | 2008-10-16 | Harris Corporation | Antenna assembly and associated methods such as for receiving multiple signals |
| US20100189493A1 (en) * | 2007-07-30 | 2010-07-29 | Henkel Ag & Co. Kgaa | Spacer sealant articles |
| CN102447450A (en) * | 2010-10-05 | 2012-05-09 | 精工电子有限公司 | Method of manufacturing packages, piezoelectric vibrators, oscillator, electronic apparatus, and radio clock |
| EP2500977A1 (en) * | 2011-03-16 | 2012-09-19 | Alcatel Lucent | Phase shifting device |
| CN103560324A (en) * | 2006-05-24 | 2014-02-05 | D·D·哈兹扎 | Variable dielectric constant-based antenna and array |
| CN103576358A (en) * | 2012-07-31 | 2014-02-12 | 群康科技(深圳)有限公司 | Low-color-shift liquid crystal panel and display |
| US20160241217A1 (en) * | 2015-02-13 | 2016-08-18 | Mohsen Sazegar | Counter electrode device, system and method for varying the permittivity of a liquid crystal device |
| CN106961008A (en) * | 2017-04-06 | 2017-07-18 | 京东方科技集团股份有限公司 | Antenna structure and its driving method and antenna system |
| US20170279198A1 (en) * | 2016-03-23 | 2017-09-28 | Smk Corporation | Antenna-equipped film and touch panel |
| CN107528121A (en) * | 2017-08-29 | 2017-12-29 | 京东方科技集团股份有限公司 | Antenna structure and its operating method, antenna equipment |
| CN107706502A (en) * | 2017-09-29 | 2018-02-16 | 京东方科技集团股份有限公司 | Antenna element and its manufacture method, liquid crystal antenna, communication equipment |
| US20180115068A1 (en) * | 2016-10-24 | 2018-04-26 | Kymeta Corporation | Dual resonator for flat panel antennas |
| US20180217456A1 (en) * | 2017-01-31 | 2018-08-02 | Samsung Electronics Co., Ltd | Liquid crystal-based high-frequency device and high-frequency switch |
| CN108398816A (en) * | 2018-03-26 | 2018-08-14 | 北京京东方专用显示科技有限公司 | A kind of liquid crystal phase shifter and preparation method thereof, phase-moving method |
| CN108615962A (en) * | 2018-07-18 | 2018-10-02 | 成都天马微电子有限公司 | Liquid crystal phase shifter and antenna |
| CN108666738A (en) * | 2018-05-17 | 2018-10-16 | 京东方科技集团股份有限公司 | A kind of liquid crystal antenna and preparation method thereof, driving method and communication equipment |
| CN108879036A (en) * | 2018-07-02 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of liquid crystal phaser array and antenna |
| CN108963402A (en) * | 2018-08-16 | 2018-12-07 | 北京华镁钛科技有限公司 | It is a kind of for making the transmission structure and production method of frequency microwave device and antenna |
| CN109164608A (en) * | 2018-09-25 | 2019-01-08 | 京东方科技集团股份有限公司 | The control method of phase shifter, antenna and phase shifter |
| CN208834048U (en) * | 2018-11-12 | 2019-05-07 | 惠科股份有限公司 | Display panel and display device |
| CN110034381A (en) * | 2017-11-06 | 2019-07-19 | 夏普株式会社 | Scanning antenna and liquid-crystal apparatus |
| KR20190087270A (en) * | 2018-01-15 | 2019-07-24 | 엘지전자 주식회사 | Antenna device and electronic apparatus having the same |
| CN110264880A (en) * | 2018-07-10 | 2019-09-20 | 友达光电股份有限公司 | Wireless Display panel with multi-channel data transmission |
| CN110365422A (en) * | 2018-04-04 | 2019-10-22 | 京东方科技集团股份有限公司 | A kind of signal processing apparatus and preparation method thereof |
| CN110518311A (en) * | 2018-05-21 | 2019-11-29 | 京东方科技集团股份有限公司 | A kind of phase shifter and its working method, antenna, communication equipment |
-
2020
- 2020-06-30 CN CN202010623321.2A patent/CN113867019B/en active Active
Patent Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249220A (en) * | 1968-03-09 | 1971-10-13 | Asahi Chemical Ind | A process for producing elastic foam moulded articles |
| US4964701A (en) * | 1988-10-04 | 1990-10-23 | Raytheon Company | Deflector for an optical beam |
| WO1998032148A1 (en) * | 1997-01-16 | 1998-07-23 | Sony Corporation | Method of manufacturing image display |
| JPH11103201A (en) * | 1997-09-29 | 1999-04-13 | Mitsui Chem Inc | Phase shifter, phase shifter array and phased array antenna system |
| TW200610226A (en) * | 2004-09-01 | 2006-03-16 | Gemtek Technology Co Ltd | Coupled dual-frequency antenna |
| CN101053113A (en) * | 2005-03-30 | 2007-10-10 | 松下电器产业株式会社 | Transmission line |
| CN103560324A (en) * | 2006-05-24 | 2014-02-05 | D·D·哈兹扎 | Variable dielectric constant-based antenna and array |
| TW200801648A (en) * | 2006-06-02 | 2008-01-01 | Au Optronics Corp | Array substrate and panel of liquid crystal display |
| US20080252545A1 (en) * | 2007-04-10 | 2008-10-16 | Harris Corporation | Antenna assembly and associated methods such as for receiving multiple signals |
| US20100189493A1 (en) * | 2007-07-30 | 2010-07-29 | Henkel Ag & Co. Kgaa | Spacer sealant articles |
| CN102447450A (en) * | 2010-10-05 | 2012-05-09 | 精工电子有限公司 | Method of manufacturing packages, piezoelectric vibrators, oscillator, electronic apparatus, and radio clock |
| EP2500977A1 (en) * | 2011-03-16 | 2012-09-19 | Alcatel Lucent | Phase shifting device |
| CN103576358A (en) * | 2012-07-31 | 2014-02-12 | 群康科技(深圳)有限公司 | Low-color-shift liquid crystal panel and display |
| US20160241217A1 (en) * | 2015-02-13 | 2016-08-18 | Mohsen Sazegar | Counter electrode device, system and method for varying the permittivity of a liquid crystal device |
| US20170279198A1 (en) * | 2016-03-23 | 2017-09-28 | Smk Corporation | Antenna-equipped film and touch panel |
| US20180115068A1 (en) * | 2016-10-24 | 2018-04-26 | Kymeta Corporation | Dual resonator for flat panel antennas |
| US20180217456A1 (en) * | 2017-01-31 | 2018-08-02 | Samsung Electronics Co., Ltd | Liquid crystal-based high-frequency device and high-frequency switch |
| CN106961008A (en) * | 2017-04-06 | 2017-07-18 | 京东方科技集团股份有限公司 | Antenna structure and its driving method and antenna system |
| CN107528121A (en) * | 2017-08-29 | 2017-12-29 | 京东方科技集团股份有限公司 | Antenna structure and its operating method, antenna equipment |
| CN107706502A (en) * | 2017-09-29 | 2018-02-16 | 京东方科技集团股份有限公司 | Antenna element and its manufacture method, liquid crystal antenna, communication equipment |
| CN110034381A (en) * | 2017-11-06 | 2019-07-19 | 夏普株式会社 | Scanning antenna and liquid-crystal apparatus |
| KR20190087270A (en) * | 2018-01-15 | 2019-07-24 | 엘지전자 주식회사 | Antenna device and electronic apparatus having the same |
| CN108398816A (en) * | 2018-03-26 | 2018-08-14 | 北京京东方专用显示科技有限公司 | A kind of liquid crystal phase shifter and preparation method thereof, phase-moving method |
| CN110365422A (en) * | 2018-04-04 | 2019-10-22 | 京东方科技集团股份有限公司 | A kind of signal processing apparatus and preparation method thereof |
| CN108666738A (en) * | 2018-05-17 | 2018-10-16 | 京东方科技集团股份有限公司 | A kind of liquid crystal antenna and preparation method thereof, driving method and communication equipment |
| CN110518311A (en) * | 2018-05-21 | 2019-11-29 | 京东方科技集团股份有限公司 | A kind of phase shifter and its working method, antenna, communication equipment |
| CN108879036A (en) * | 2018-07-02 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of liquid crystal phaser array and antenna |
| CN110264880A (en) * | 2018-07-10 | 2019-09-20 | 友达光电股份有限公司 | Wireless Display panel with multi-channel data transmission |
| CN108615962A (en) * | 2018-07-18 | 2018-10-02 | 成都天马微电子有限公司 | Liquid crystal phase shifter and antenna |
| CN108963402A (en) * | 2018-08-16 | 2018-12-07 | 北京华镁钛科技有限公司 | It is a kind of for making the transmission structure and production method of frequency microwave device and antenna |
| CN109164608A (en) * | 2018-09-25 | 2019-01-08 | 京东方科技集团股份有限公司 | The control method of phase shifter, antenna and phase shifter |
| CN208834048U (en) * | 2018-11-12 | 2019-05-07 | 惠科股份有限公司 | Display panel and display device |
Non-Patent Citations (4)
| Title |
|---|
| PAN CY: "A Novel Frequency Reconfigurable Microctrip Antenna Based on Liquid Crystal", 《PROCEEDINGS OF THE 2018 2ND INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND COMMUNICATION ENGINEERING(ICTCE 2018)》, 30 November 2018 (2018-11-30), pages 201 - 204 * |
| 修威;庞晨;李永祯;王雪松;: "一种双极化液晶阵列天线设计与方向图综合方法", 电波科学学报, no. 06, 15 December 2019 (2019-12-15), pages 42 - 50 * |
| 李厅;吴海华;杜超;柳宁;吴朝;: "细鳞片石墨复合密封板铺叠成形制造", 山东工业技术, no. 04, pages 34 * |
| 罗沙: "基于液晶材料的小型化双频微带贴片天线", 《2019年全国天线年会论文集（中册）》, 22 July 2019 (2019-07-22), pages 1325 - 1327 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113867019B (en) | 2024-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109964364B (en) | Multilayer software defined antenna and method of manufacturing the same | |
| CN109792106B (en) | Liquid crystal tunable metasurfaces for beam steering antennas | |
| EP2979323B1 (en) | A siw antenna arrangement | |
| EP1398848B1 (en) | Laminated aperture antenna and multi-layered wiring board comprising the same | |
| US6154176A (en) | Antennas formed using multilayer ceramic substrates | |
| EP1014470B1 (en) | Line transition device between dielectric waveguide and waveguide, and oscillator and transmitter using the same | |
| KR20000075673A (en) | Resonant antenna | |
| CN102593565B (en) | The input and output connecting structure of dielectric-filled waveguide | |
| US9705174B2 (en) | Dielectric waveguide having a core and cladding formed in a flexible multi-layer substrate | |
| JP2007110256A (en) | Phased-array antenna | |
| CN102308435A (en) | High-frequency model | |
| GB2497982A (en) | An electrically conducting interconnector between two stacked waveguides | |
| WO2012036221A1 (en) | Antenna device and communication device | |
| CN113867019B (en) | Liquid crystal phase shifter and manufacturing method thereof | |
| Maune et al. | Liquid crystal technology for reconfigurable satcom applications | |
| JP4148423B2 (en) | Dielectric device | |
| EP3506417B1 (en) | Transmission line | |
| EP3579332A1 (en) | A waveguide interconnect | |
| US11870507B2 (en) | Wireless board-to-board interconnect for high-rate wireless data transmission | |
| JP2000252712A (en) | Connection structure between dielectric waveguide line and high frequency line conductor | |
| US6204814B1 (en) | Planar emitter | |
| EP0869573B1 (en) | Dielectric filter and communication apparatus using same | |
| WO2022137468A1 (en) | Coupler | |
| CN219371338U (en) | Transition structure of microstrip to waveguide and communication equipment | |
| US20240072453A1 (en) | Antenna, antenna array and communication system |
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 |