KR102016090B1 - Arc type phase shifter comprising - Google Patents

Abstract

The present invention relates to an arc type phase shifter including a parasitic patch. According to the present invention, the arc type phase shifter allows a rotary substrate having a second transmission pattern to be provided on a main substrate which has an input port, a plurality of output ports and a first transmission pattern having an arc type pattern to be rotatable by the medium of a center shaft, and varies a phase by using a distance distribution between the input port and the output ports. The first transmission pattern has a plurality of arc type patterns formed on one side thereof with the center shaft as the center thereof and coupled to the second transmission pattern. In connecting the input port and the output ports, a part, in which a signal is split, is connected to a Wilkinson splitter to ensure separation between the respective output ports, thereby stably supplying the signal to respective radiation elements provided on rear ends of the plurality of output ports. Further, the impedance matching characteristics of the phase shift can be ensured over a wide band by forming a non-powered parasitic patch on an upper surface of the rotary substrate.

Description

Arc type phase shifter comprising parasitic patches

The present invention relates to a phase shifter, and more particularly, a parasitic patch capable of varying phase by distance distribution between an arc-based input port and an output port, and securing impedance matching characteristics over a wide band. It relates to an arc type phase shifter comprising.

In the mobile communication system, since the frequency of use of subscribers varies by region or time zone, a problem arises in that the higher frequency of use worsens the communication environment compared to the lower frequency of use.

In order to solve this problem and provide an optimal service, a network management method for adjusting base station coverage by adjusting the angle of the radiation beam of the base station antenna is used. As a method for adjusting (tilting) the radiation beam angle of the antenna, a mechanical or electrical beam tilt method is used.

The mechanical beam tilt method can reduce the production cost of the antenna. However, since the mechanical beam tilt method requires the technician to adjust the beam tilt of the antenna directly through a tilt mechanism connected to an antenna installed at a high place, there is a high risk of a safety accident that the technician falls down where the antenna is installed. I have a time-consuming problem.

On the other hand, since the electric beam tilt method remotely adjusts the beam tilt of the antenna, there is an advantage that a technician can quickly perform beam tilt adjustment without the risk of a safety accident falling from a high place where the antenna is installed.

The antenna system capable of tilting the electric beam is provided with a phase shifter for varying the phase of the radiation beam. That is, the phase variable changes the phase of the signal by varying the length of the transmission line through which the signal passes.

Most phase shifters currently in use have a structure in which a rotating substrate rotates with respect to an arc-based main substrate. Such a phase shifter is called an arc type phase shifter.

The arc-type phase shifter is designed based on a T-junction, and transmits power through a coupling between a first transmission pattern formed on the upper surface of the main substrate and a second transmission pattern formed on the lower surface of the rotating substrate. To pass. In this case, the impedance matching characteristic between the main substrate and the rotating substrate is important so that there is no reflection loss in the signal transmission between the main substrate and the rotating substrate.

However, the main board and the rotating board not only have to transmit signals through coupling by physical contact, but also it is difficult to secure impedance matching characteristics according to broadband and miniaturization requirements. Conventionally, when designing the first transmission pattern and the second transmission pattern in order to improve the impedance matching characteristics, it is necessary to reflect the objectives for consideration of the phase-variable section and miniaturization.

In addition, since the arc type phase shifter is designed based on the T-junction, it is difficult to secure isolation between output ports. For example, in the arc-type phase changer, when the input port is defined as P1 and the output port as P2 and P3, it can be seen that the S22 and S23 characteristics of the S-parameter characteristics represent -6 dB, respectively. . This means that the magnitude of the signal reflected back to P2 is large and the separation between P2 and P3 is not secured. Due to this characteristic, when there is a copy element or other component at the rear of the output port, it is difficult to supply an appropriate signal to the component installed at the rear of the output port due to the interference between the output ports.

When the arc type phase shifter is applied to an array antenna, it is difficult to obtain a desired radiation pattern by distorting the amplitude and phase supplied to each radiation element.

Patent Registration No. 10-1586424 (January 19, 2016)

Accordingly, an object of the present invention is to provide an arc-type phase changer including a parasitic patch capable of ensuring broadband impedance matching characteristics.

Another object of the present invention is to provide an arc-type phase shifter including a Wilkinson divider that can securely provide a signal to each radiation element by securing the separation between output ports.

In order to achieve the above object, the present invention is a central axis; A first transmission pattern coupled to the central axis and formed on an upper surface around the central axis, wherein the first transmission pattern includes a first hole pattern to which the central axis is coupled, and the first hole pattern; A plurality of arc-shaped patterns formed at both ends and having output ports at one end thereof, a feed pattern having one end connected to the first hole pattern and an input port formed at the other end thereof, and a Wilkinson divider connected to the feed pattern; A main substrate having a fixed pattern having an output port formed at an end thereof; It is installed to be in close contact with the upper surface of the main substrate through the central axis, rotatably coupled to the central axis with respect to the main substrate, connected to the power feeding pattern and the plurality of arc-shaped pattern in accordance with the rotation A rotating substrate having a second transmission pattern that varies in phase with distance distribution between a port and the output ports; And a parasitic patch that is formed on an upper surface of the rotating substrate and that matches an impedance between the first transmission pattern and the second transmission pattern.

The main substrate may include a first base substrate formed of a dielectric material and having a first through hole to which the central axis is coupled; A ground plane formed on a bottom surface of the first base substrate; And the first transfer pattern formed on an upper surface of the first base substrate.

In the first transmission pattern, the first hole pattern is formed around the first through hole, the plurality of arc patterns are formed on the first hole pattern, and the power supply pattern and the fixed pattern are formed thereon. The plurality of arc-shaped patterns may be formed on opposite sides of the first hole pattern.

The Wilkinson distributor includes: a wire connected to the input port; A pair of branch wirings branched in two from the wirings, one connected to the feed pattern portion facing the central axis and the other connected to the fixed pattern portion facing the output port of the fixed pattern; And a resistor connecting the pair of branch wirings.

The plurality of arc-shaped patterns, the first arc-shaped pattern is formed in the upper portion around the central axis, the arc shape is convex upwardly around the central axis, the output port is formed at both ends; And a second formed between the central axis and the first arc-shaped pattern, the arc-shaped convex upwardly around the central axis, and having a smaller arc shape than the first arc-shaped pattern, and output ports formed at both ends thereof. Arc-shaped pattern; may include.

The rotating substrate may include a second base substrate formed of a dielectric material and having a second through hole corresponding to the first through hole; And a second transmission pattern formed on the lower surface of the second base substrate.

The second transmission pattern may include: a second hole pattern formed around the second through hole and in close contact with the first hole pattern; A second-first transmission pattern connected to the second hole pattern and extending above the first arc pattern, and coupled to the first arc pattern; And a second-2 transmission pattern connected to the second hole pattern and extending above the second arc pattern, and coupled to the second arc pattern.

The parasitic patch may be formed on an upper surface of the second base substrate, and may be formed on the 2-1 transfer pattern or the 2-2 transfer pattern.

The second transmission pattern may extend from the second hole pattern to form the second-2 transmission pattern, and may extend from the second-2 transmission pattern to form the second-1 transmission pattern.

The parasitic patch may include: a first parasitic patch formed on the second-2 transmission pattern; And a second parasitic patch spaced apart from the first parasitic patch and formed over the second-2 transmission pattern in the 2-1 transmission pattern.

According to the present invention, the impedance matching characteristics of the phase shifter may be improved by forming a parasitic non-powered parasitic patch on the upper surface of the rotating substrate on which the second transmission pattern is formed on the lower surface. That is, when the parasitic patch is applied to the upper surface of the rotating substrate, the first transmission pattern and the second transmission pattern may be spaced apart by the thickness of the rotating substrate as a dielectric on the microstrip line. In this condition, the transmitted signal is induced and coupled by the parasitic patch, which affects the overall impedance characteristic of the phase shifter, and the impedance characteristic changes according to the size and shape of the parasitic patch. Here, by designing an appropriate size and shape of the parasitic patch, it is possible to secure the broadband impedance matching characteristics of the phase changer.

The phase variable according to the present invention can secure a wideband impedance matching characteristic, thereby improving transmission efficiency over a wide bandwidth.

When the radiating element is connected to the phase variable, the parasitic patch according to the present invention may function as a member that can be independently tuned without degrading other characteristics in impedance matching between the phase variable and the radiating element.

In the phase variable according to the present invention, since the Wilkinson splitter is connected to the signal branch in the connection of the input port and the plurality of output ports, the phase variable of the call type phase variable based on the tee-junction can be solved. Can be. That is, the phase shifter can secure the separation between each output port using a Wilkinson splitter, and can thereby stably supply a signal to each of the radiation elements installed behind the plurality of output ports.

1 is a plan view illustrating an arc type phase shifter including a parasitic patch according to an embodiment of the present invention.
2 is a plan view illustrating a main substrate of FIG. 1.
3 is a plan view illustrating the rotating substrate of FIG. 1.
4 is a cross-sectional view taken along line 4-4 of FIG. 3.
5 is a plan view illustrating an arc type phase shifter according to a comparative example.
6 is a graph showing the return loss of the arc-type phase variable according to the comparative example.
7 is a graph showing the return loss of the arc-type phase shifter according to an embodiment of the present invention.
8 and 9 are graphs showing the power deviation of the arc-type phase variable according to the comparative example and the embodiment.
10 and 11 are graphs showing phase deviations of an arc phase shifter according to a comparative example and an embodiment.

In the following description, only parts necessary for understanding the embodiments of the present invention will be described, it should be noted that the description of other parts will be omitted in a range that does not distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors are appropriate to the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be variations and variations.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

1 is a plan view illustrating an arc type phase shifter including a parasitic patch according to an embodiment of the present invention.

Referring to FIG. 1, the arc type phase changer 100 including the parasitic patch 80 according to the present embodiment 100 (hereinafter, referred to as an arc type phase changer) may include a central axis 10 and a central axis ( And a parasitic patch 80 formed on the upper surface of the main substrate 20 and the rotating substrate 60 and the rotating substrate 60 sequentially stacked and coupled to 10). The main substrate 20 includes an input port 35 and a plurality of output ports 51, 53, 55, 57, and 59, and includes a plurality of arc-shaped patterns 27 formed on the central axis 10. The first transmission pattern 23 is formed. A second transmission pattern 63 is formed on the rotating substrate 60 to be electrically coupled to the plurality of arc-shaped patterns 27 by mechanical contact. The rotating substrate 60 is installed in close contact with the upper surface of the main substrate 20. The main substrate 20 is fixed to the central axis 10, and the rotating substrate 60 is rotatably coupled to the central axis 10. Accordingly, while the rotating substrate 60 rotates about the main substrate 20 fixed to the central axis 10 with the central axis 10 rotating thereon, the input port 35 and the output ports 51, 53, 55, and 57 are rotated. Change the phase by distance distribution between The parasitic patch 80 is formed on the upper surface of the rotating substrate 60 to match the impedance between the first transmission pattern 23 and the second transmission pattern 63.

In addition, the phase variable according to the present embodiment 100 is connected to the input port 35 and the plurality of output ports (51, 53, 55, 57, 59), the Wilkinson divider 40 in the signal branch is formed; Wilkinson divider is connected. Since the signal is branched using the Wilkinson splitter 40, it is possible to secure the separation between the output ports 51, 53, 55, 57, and 59, and thereby the plurality of output ports 51, 53, 55, 57. 59) A signal can be stably supplied to each of the radiation elements installed at the rear end.

The arc type phase shifter 100 according to the present embodiment will be described with reference to FIGS. 1 to 4 as follows. 2 is a plan view illustrating the main substrate 20 of FIG. 1. 3 is a plan view illustrating the rotating substrate 60 of FIG. 1. 4 is a cross-sectional view taken along line 4-4 of FIG. 3.

As shown in FIGS. 1 and 2, the main substrate 20 includes a first base substrate 21, a first transmission pattern 23, and a ground plane (not shown).

The first base substrate 21 is an insulating dielectric substrate having a lower surface and an upper surface opposite to the lower surface. The first base substrate 21 is formed with a first through hole 22 having a central axis 10 provided at the center thereof. The first base substrate 21 is coupled to the central axis 10.

The ground plane is formed on the bottom surface of the first base substrate 21.

The first transfer pattern 23 is a wiring pattern formed on the upper surface of the first base substrate 21. The first transmission pattern 23 is a microstrip line. The first transmission pattern 23 may be formed of a copper or aluminum material having good electrical conductivity. The first transmission pattern 23 includes a first hole pattern 25, a plurality of arc patterns 27, a power feeding pattern 33, and a fixed pattern 37. The first hole pattern 25 is formed in a ring shape around the first through hole 22 to which the central axis 10 is coupled. The plurality of arc-shaped patterns 27 are formed at an upper portion with respect to the first hole pattern 25, and output ports 51, 53, 57, and 59 are formed at both ends thereof. The power feeding pattern 33 is formed on the opposite side of the side where the plurality of arc-shaped patterns 27 are formed around the first hole pattern 25, and one end of the power feeding pattern 33 is connected to the first hole pattern 25 and the input port 35 is formed at the other end thereof. ) Is formed. And the fixed pattern 37 is connected to the feed pattern 33 via the Wilkinson distributor 40, the output port 55 is formed at the end.

In this case, the arc pattern 27 may include a first arc pattern 29 and a second arc pattern 31. The first arc pattern 29 is formed at an upper portion with respect to the central axis 10, is formed in an arc shape convex upwardly with respect to the central axis 10, and output ports 51 and 59 are formed at both ends thereof. do. The second arc pattern 31 is formed between the central axis 10 and the first arc pattern 29, and is formed in an arc shape convex upwardly around the central axis 10, and output ports at both ends thereof. (53,57) are formed. In this case, the second arc pattern 31 is formed in an arc shape smaller than the first arc pattern 29.

In this embodiment, an example in which one input port 35 and five output ports 51, 53, 55, 57, and 59 are disclosed. Five output ports 51, 53, 55, 57, 59 are formed in the first and fifth output ports 51, 59 formed in the first arc-shaped pattern 29, and the second arc-shaped pattern 31. Second and fourth output ports 53 and 57 and a third output port 55 formed in the fixed pattern 37. The first output port 51, the second output port 53, and the third output port 55 are disposed on the left side of the central axis 10, and the input port 35 and the fourth output port ( 57 and seventh output port 59 may be disposed.

The five output ports 51, 53, 55, 57, and 59 may be connected to the first to fifth radiating elements, respectively. Assuming that the first to fifth radiation elements are sequentially arranged, the first to fifth output ports 51, 53, 55, 57, and 59 are connected to correspond to the first to fifth radiation elements, respectively.

The Wilkinson distributor 40 includes a wire 41, a pair of branch wires 43, and a resistor 45. The wiring 41 is connected to the input port 35. The pair of branch wirings 43 branch in two from the wiring 41, one is connected to the portion of the feeding pattern 33 facing the central axis 10, and the other is connected to the third output port 55. It is connected to the part of the fixed pattern 37 which faces. The resistor 45 connects a pair of branch wirings 43.

Here, the resistor 45 is formed outside the region in which the rotating substrate 60 rotates so as not to physically interfere with the rotating rotating substrate 60.

As such, since the Wilkinson distributor 40 connects the pair of branch wirings 43 to the resistor 45, the third output port 55 and the remaining output ports (connected to the pair of first branch wirings 43) 51, 53, 57, and 59, and to ensure impedance matching and isolation. That is, the separation degree between the third output port 55 and the remaining output ports 51, 53, 57, and 59 may be secured through the first Wilkinson distributor 40.

As shown in FIGS. 1, 3, and 4, the rotating substrate 60 includes a second base substrate 61 and a second transfer pattern 63.

The second base substrate 61 is a dielectric substrate made of an insulating material having a lower surface and an upper surface opposite to the lower surface. The second base substrate 61 is formed with a second through hole 62 having a central axis 10 at the center thereof. The second base substrate 61 is rotatably coupled to the central axis 10.

The second transfer pattern 63 is a wiring pattern formed on the bottom surface of the second base substrate 61. Unlike the first transfer pattern 23, the second transfer pattern 63 has no ground plane on an upper surface of the second base substrate 61. When the first transmission pattern 23 and the second transmission pattern 63 are in close contact with each other, the ground plane of the main substrate 20 is shared and operates as a microstrip line. The second transmission pattern 63 may be formed of a copper or aluminum material having good electrical conductivity. The second transmission pattern 63 may include a second hole pattern 65, a second-first transmission pattern 67, and a second-second transmission pattern 69. The second hole pattern 65 has a ring shape around the second through hole 62 to which the central axis 10 is coupled, and is in close contact with the first hole pattern 25 and electrically connected thereto. The second-first transmission pattern 67 is connected to the second hole pattern 65 and extends above the first arc pattern 29, and is coupled to the first arc pattern 29 to transmit power. The second-second transmission pattern 69 is integrally formed with the second hole pattern 65 and extends over the second arc-type pattern 31. The second-second transmission pattern 69 is coupled to the second arc-type pattern 31 to supply power. To pass.

At this time, the second transmission pattern 63 extends to the second hole pattern 65 to form the second-2 transmission pattern 69, and the second transmission pattern 69 extends to the second transmission pattern 69 to the second-1 transmission pattern. (67) is formed. That is, the second transmission pattern 63 has a structure in which the second-second transmission pattern 69 and the second-first transmission pattern 67 are formed to be connected to the second hole pattern 65 in a straight line.

The second-second transmission pattern 69 also has some curved shape but extends toward the second arc-shaped pattern 31. The second-first transmission pattern 67 has some curved shape but extends toward the first arc-shaped pattern 29. The radius formed by the end of the second-first transmission pattern 67 in the central axis 10 is the same as the radius of the first arc pattern 29. The radius formed by the end of the second-second transmission pattern 69 on the central axis 10 is the same as the radius of the second arc-shaped pattern 31.

Therefore, when the rotating substrate 60 rotates the central axis 10 in the rotation axis, the end of the second-first transmission pattern 67 rotates in contact with the first arc-shaped pattern 29, the second-2 The end of the transmission pattern 69 is in phase with the distance distribution between the input port 35 and the first to fifth output ports 51, 53, 55, 57, 59 while rotating in contact with the second arc-shaped pattern 31. To vary.

In the present embodiment, the example in which the 2-1th transmission pattern 67 and the 2-2th transmission pattern 69 are connected to each other is disclosed, but the present invention is not limited thereto. For example, the 2-1th transmission pattern and the 2-2th transmission pattern may be formed by branching to the second hole pattern.

The parasitic patch 80 is formed on the upper surface of the second base substrate 61 as shown in FIGS. 1, 3, and 4. The parasitic patch 80 may be formed of a copper or aluminum material having good electrical conductivity. The parasitic patch 80 may be formed together with the second transmission pattern 63 in the process of manufacturing the rotating substrate 60.

The parasitic patch 80 may be formed on the upper surface of the second base substrate 61 and may be formed on the 2-1 transfer pattern 67 or the 2-2 transfer pattern 69. In the present exemplary embodiment, the parasitic patch 80 may be spaced apart from the first parasitic patch 81 formed on the second-2 transmission pattern 69 and the first parasitic patch 81 and may be spaced apart from the second-1 transmission pattern 67. Although the example including the 2nd parasitic patch 83 formed over the 2-2-2 transmission pattern 69 was disclosed, it is not limited to this. That is, one or more parasitic patches 80 may be formed on the upper surface of the second base substrate 61.

This parasitic patch 80 improves the impedance matching characteristics of the arc-type phase changer 100. That is, when the parasitic patch 80 is applied to the upper surface of the rotating substrate 60, the second base substrate as a dielectric on the microstrip line formed by stacking the first transmission pattern 23 and the second transmission pattern 63. There is a state spaced apart by the thickness of 61). In this condition, the transmitted signal is induced and coupled by the parasitic patch 80 to affect the overall impedance characteristics of the arc-type phase changer 100. The impedance characteristic is changed according to the size and shape of the parasitic patch 80. Therefore, by designing the appropriate size and shape of the parasitic patch 80, it is possible to secure the broadband impedance matching characteristics of the arc-type phase changer 100.

In order to confirm the impedance matching characteristics of the arc-type phase shifter 100 according to the present embodiment, the return loss was measured together with the arc-type phase shifter 200 according to the comparative example.

The arc type phase shifter 200 according to the comparative example does not include a Wilkinson distributor and a parasitic patch, as shown in FIG. 5. The phase shifter 200 includes a main axis 120 including a first transmission pattern 123 including a plurality of arc-shaped patterns 127, and a central axis 110 on an upper surface of the main part 120. And a rotating substrate 160 rotatably coupled to each other. The second substrate 163 is formed on the bottom surface of the rotating substrate 160. The power supply pattern 133 is branched into the input port 135 and the third output port 155. The second transmission pattern 163 is connected to the second-first transmission pattern 167 and the second-second transmission pattern 169 with respect to the second hole pattern 165.

6 is a graph showing the return loss of the arc-type phase variable according to the comparative example. 7 is a graph showing the return loss of the arc-type phase shifter according to an embodiment of the present invention.

6 and 7, the reflection loss in the 1.71 GHz to 2.69 GHz band was measured, and the marked markers indicate the frequencies and values with the largest loss in the measurement bands. The measurement result was shown by the polar chart.

It can be seen that the return loss was measured closer to the center of the circle in the arc-type phase variable according to the present embodiment to which the parasitic patch and the Wilkinson distributor are applied rather than the arc-type phase variable according to the comparative example. That is, it can be seen that the arc type phase variable according to the embodiment has a lower reflection loss than the arc type phase variable according to the comparative example.

As such, the low reflection loss means that the arc phase variable according to the present embodiment has the broadband impedance matching characteristics as compared with the arc phase variable according to the comparative example, thereby achieving wideband characteristics.

As described above, the arc type phase shifter according to the present exemplary embodiment may improve the transmission impedance of the broadband type by improving the broadband impedance matching characteristic.

In addition, when the radiation element is connected to the arc-type phase variable according to the present embodiment, the parasitic patch may function as a member that can be independently tuned without degrading other characteristics when impedance matching between the arc-type phase variable and the radiation element. .

Next, in order to confirm the propagation characteristics of the arc type phase shifter 100 according to the present embodiment, the power deviation and the phase shift were measured together with the weak phase shifter 200 according to the comparative example.

8 and 9 are graphs showing the power deviation of the arc-type phase variable according to the comparative example and the embodiment. In the graph, 0, 2.5, 5, 7.5, and 10 represent beam tilt positions of the arc-type phase shifter.

8 and 9, the power deviation is data for comparing the before and after applying the Wilkinson divider, the power (S21, [dB]) value measured at the output port of the arc-type phase changer according to the frequency or It is a graph showing the deviation from the ideal design value of 0 [dB] according to the beam tilt position of the arc-type phase shifter.

As shown in FIG. 8, the arc-type phase variable according to the comparative example may be widely distributed up and down based on 0 [dB].

On the other hand, the arc-type phase variable according to the embodiment, as shown in Figure 9, it can be confirmed that compared to the comparative example narrowly distributed up and down around 0 [dB].

Thus, it can be seen that the arc type phase shifter according to the embodiment improves the power deviation by applying a Wilkinson divider.

10 and 11 are graphs showing phase deviations of an arc phase shifter according to a comparative example and an embodiment.

Referring to FIGS. 10 and 11, the phase deviation is an ideal design value according to the frequency or the beam tilt position of the arc phase variable according to the phase (S21, [deg]) value measured at the output port of the arc type phase variable. A graph showing the value deviating from 0 [dB].

As shown in FIG. 10, the arc-type phase variable according to the comparative example may be widely distributed up and down based on 0 [dB].

On the other hand, the arc-type phase variable according to the embodiment, as shown in Figure 11, compared to the comparative example it can be seen that the width is narrowly distributed up and down around 0 [dB].

Thus, it can be seen that the arc type phase shifter according to the embodiment improves the phase deviation by applying a Wilkinson splitter.

On the other hand, the embodiments disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

10: central axis
20: main board
21: first base substrate
22: first through hole
23: first transmission pattern
25: first hole pattern
27: arc pattern
29: first arc pattern
31: second arc pattern
33: feeding pattern
35 input port
37: fixed pattern
40: Wilkinson Splitter
41: wiring
43: branch wiring
45 resistor
51, 53, 55, 57, 59: output port
60: rotating substrate
61: second base substrate
62: second through hole
63: second transmission pattern
65: second hole pattern
67: 2-1 transmission pattern
69: 2-2 transmission pattern
80: Parasitic Patches
81: first parasitic patch
83: second parasitic patch
100: phase variable

Claims (8)

Central axis;
A first transmission pattern coupled to the central axis and formed on an upper surface around the central axis, wherein the first transmission pattern includes a first hole pattern to which the central axis is coupled, and the first hole pattern; A plurality of arc-shaped patterns having output ports formed at both ends thereof, a feed pattern having one end connected to the first hole pattern and an input port formed at the other end thereof, and a Wilkinson divider connected to the feed pattern; A main substrate having a fixed pattern having an output port formed at an end thereof;
It is installed to be in close contact with the upper surface of the main substrate through the central axis, rotatably coupled to the central axis with respect to the main substrate, connected to the power feeding pattern and the plurality of arc-shaped pattern in accordance with the rotation A rotating substrate having a second transmission pattern that varies in phase with distance distribution between a port and the output ports; And
And a parasitic patch that is formed on an upper surface of the rotating substrate and that matches an impedance between the first transmission pattern and the second transmission pattern.
The plurality of arc pattern,
A first arc pattern formed on an upper portion of the central axis, formed in an arc shape convex upwardly on the central axis, and having output ports formed at both ends thereof; And
A second arc formed between the central axis and the first arc-shaped pattern, the arc being convex upwardly around the central axis, and having a smaller arc shape than the first arc-shaped pattern, and having output ports formed at both ends thereof; Including a pattern;
The rotating substrate,
A second base substrate formed of a dielectric material and having a second through hole coupled to the central axis; And
And a second transmission pattern formed on the lower surface of the second base substrate.
The second transmission pattern is,
A second hole pattern formed around the second through hole and in close contact with the first hole pattern;
A second-first transmission pattern connected to the second hole pattern and extending above the first arc pattern, and coupled to the first arc pattern; And
And a second-2 transmission pattern connected to the second hole pattern and extending above the second arc pattern, and coupled to the second arc pattern.
The parasitic patch is formed on the upper surface of the second base substrate, the arc type phase shifter, characterized in that formed on the 2-1 or 2-2 transmission pattern. The method of claim 1, wherein the main substrate,
A first base substrate formed of a dielectric and having a first through hole corresponding to the second through hole to which the central axis is coupled;
A ground plane formed on a bottom surface of the first base substrate; And
And the first transfer pattern formed on an upper surface of the first base substrate.
The first transmission pattern is,
The first hole pattern is formed around the first through hole, the plurality of arc-shaped patterns are formed on the first hole pattern, and the feeding pattern and the fixed pattern are formed on the first hole pattern. Arc-type phase shifter, characterized in that formed on the opposite side of the side formed with the plurality of arc-shaped pattern to the center. The method of claim 2, wherein the Wilkinson dispenser,
A wire connected to the input port;
A pair of branch wirings branched in two from the wirings, one connected to the feed pattern portion facing the central axis and the other connected to the fixed pattern portion facing the output port of the fixed pattern; And
A resistor for connecting the pair of branch wirings;
Arc type phase shifter comprising a. delete delete delete The method of claim 1,
Wherein the second transmission pattern extends from the second hole pattern to form the second-2 transmission pattern, and extends from the second-2 transmission pattern to form the second-1 transmission pattern. Phase variable. The method of claim 7, wherein the parasitic patch,
A first parasitic patch formed on the second-2 transmission pattern; And
A second parasitic patch spaced apart from the first parasitic patch and formed over the second-2 transmission pattern in the 2-1 transmission pattern;
Arc type phase shifter comprising a.

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