KR101799470B1 - Filter for satellite - Google Patents

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Publication number
KR101799470B1
KR101799470B1 KR1020160015526A KR20160015526A KR101799470B1 KR 101799470 B1 KR101799470 B1 KR 101799470B1 KR 1020160015526 A KR1020160015526 A KR 1020160015526A KR 20160015526 A KR20160015526 A KR 20160015526A KR 101799470 B1 KR101799470 B1 KR 101799470B1
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KR
South Korea
Prior art keywords
pass filter
band
low
filter
coupling
Prior art date
Application number
KR1020160015526A
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Korean (ko)
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KR20170094598A (en
Inventor
노상섭
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(주)큐니온
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Priority to KR1020160015526A priority Critical patent/KR101799470B1/en
Publication of KR20170094598A publication Critical patent/KR20170094598A/en
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Publication of KR101799470B1 publication Critical patent/KR101799470B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

The present invention includes a band pass filter configured to pass a frequency of a required band and a low pass filter provided on one side of the band pass filter for filtering high frequency signals and passing low frequency signals therethrough The low-pass filter includes a body portion extending in one direction to form a body of the low-pass filter, a coupling portion provided at one end of the body portion, for coupling the body portion to one surface of the band- And a plurality of ribs extending in one direction along an outer periphery of the body on one side of the coupling portion to reduce vibrations applied to the low pass filter.

Description

{FILTER FOR SATELLITE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite filter, and more particularly, to a satellite filter having a structure capable of reducing vibrations applied to a filter and a low-pass filter.

The filter has the characteristics of passing only the desired frequency and removing unwanted frequencies. The filter is also a flower of a radio frequency (RF) passive component. Filters are one of the most used circuits throughout the RF system and are implemented in a wide variety of types and forms. Most of the filters are made up of inductance, capacitance, and resonator.

The filter is divided into low pass filter (LPF), band pass filter (BPF), high pass filter (HPF), band stop filter (BSF) and band stop filter , BRF - Band Reject Filter, and Notch Filter).

The low-pass filter is the basic type of all filters. The low-pass filter is implemented in the simplest form, and based on this, it is converted into various types to implement different kinds of filters. The low-pass filter is mainly used for filtering out high-frequency noise signals and selecting only low-frequency signals.

The low-pass filter is widely used in all fields such as to remove low-frequency ripple at the power supply, to remove spurious from the high frequency parasitic side, to suppress harmonics, and to detect various kinds of waves.

The bandpass filter needs to select only the required frequency from among the many job frequencies at the receiving end, and the transmitting end needs to filter out only the transmitting frequency so that the unnecessary job frequency is not transmitted.

The frequency to be used for each system is precisely defined, and the bandpass filter enables this by selecting only the required frequency.

For this purpose, the bandpass filter is implemented with a wide variety of filters depending on the characteristics of the system and the application.

In the satellite filter, a bandpass filter and a lowpass filter constitute a satellite filter as one body. However, there is a problem that vibrations are applied to a satellite filter or a low-pass filter.

In addition, the satellite filter is required to have a structural design to satisfy the space certification test vibration standard. To increase the strength of the coupling part, it is necessary to install the low-pass filter in the satellite filter while maintaining the linearity. On the other hand, if the low-pass filter and the bandpass filter are formed as a single body, the overall length becomes long, which is susceptible to vibration.

It is an object of the present invention to provide a satellite filter for reducing vibration applied to a band-pass filter and the like.

Another object of the present invention is to provide a satellite filter including a band-pass filter and a low-pass filter that satisfy the space certification test vibration standard.

In order to solve the above problems, a satellite filter of the present invention includes: a band-pass filter configured to pass a frequency of a required band; And a low-pass filter provided on one surface of the band-pass filter for filtering a high-frequency signal and passing a low-frequency signal, wherein the low-pass filter comprises a low- A body portion formed to extend from the body portion; An engaging part provided at one end of the body part and coupling the body part to one surface of the band-pass filter; And a plurality of ribs extending in one direction along an outer periphery of the body part on one side of the coupling part to reduce vibrations applied to the low-pass filter.

According to an embodiment of the present invention, a first member formed on one surface of the band-pass filter to be in contact with the coupling portion; And a second member extending from one side of the band-pass filter at an outer periphery of the first member is formed to reduce vibrations applied to at least one of the band-pass filter and the low-pass filter.

The second member may be formed in a plurality of shapes, and the plurality of second members may be formed in a radial shape so as to be spaced a predetermined distance along the outer periphery of the first member.

The plurality of second members may extend in a direction intersecting the end of the outer periphery of the first member at an end of the outer periphery of the first member.

The bandpass filter may have a cover forming an upper surface, and a part of the plurality of second parts may be connected to an end of the cover.

The coupling portion may be provided with a plurality of coupling members for coupling the low-pass filter to the first member.

According to another embodiment of the present invention, the plurality of ribs are arranged to be spaced apart from the outer periphery of the body part by a predetermined distance, and the ends of each of the plurality of ribs are formed in an oblique shape .

According to another embodiment of the present invention, the body portion has a cylindrical shape, and the body portion is disposed perpendicularly to one surface of the band-pass filter.

The low-pass filter of the satellite filter includes a coupling portion and a plurality of ribs, thereby reducing the vibration applied to the satellite filter.

The satellite filter of the present invention includes the first and second members, thereby reducing the vibration applied to the body and the low-pass filter.

In addition, it is possible to maintain the straightness of the low-pass filter while minimizing the weight increase of the body by the first and second members, and to prevent stress concentration on the coupling portion and the body.

As a result, the satellite filter of the present invention satisfies the space certification test vibration standard.

1 is a perspective view showing a satellite filter of the present invention.
2 is an enlarged view of a portion A in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and redundant description thereof will be omitted. The suffix "part" for the constituent elements used in the following description is to be given or mixed with consideration only for ease of specification, and does not have a meaning or role that distinguishes itself. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected or connected to the other element, although other elements may be present in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

FIG. 1 is a perspective view showing a satellite filter 100 of the present invention, and FIG. 2 is an enlarged view of a portion A in FIG.

Hereinafter, the structure of the satellite filter 100 will be described with reference to Figs. 1 and 2. Fig.

The satellite filter 100 of the present invention includes a band pass filter (BPF) 10 and a low pass filter (LPF) 20.

The band pass filter 10 is a filter that passes a band frequency in a certain region and removes a low frequency band.

The band-pass filter 10 is provided with a low-pass filter 20 to be described later so as to be able to receive the filtered signal through the low-pass filter 20. The bandpass filter 10 has a plurality of planes.

As shown in Fig. 1, the band-pass filter 10 is shown as an example having a hexahedral shape as a whole. However, the shape of the band-pass filter 10 is not limited to this, but a low-pass filter 20 can be installed to receive the filtered signal from the low-pass filter 20, And may be formed in various shapes to remove the low frequency.

On the other hand, the band-pass filter 10 may have a cover forming one surface on the upper side. A portion of the second portion 17, which will be described later, may be connected to the cover.

The first and second members 13 and 17 are formed on one surface of the band-pass filter 10, and the detailed structure thereof will be described later.

Referring to FIG. 1, an example of a coupling body 30 disposed on the side of the bandpass filter 10 is shown. The coupling unit 30 may be provided in a plurality and may be disposed at a predetermined distance from one side of the bandpass filter 10. The coupling unit 30 allows the bandpass filter 10 to be coupled to a moving object such as a satellite.

The low-pass filter 20 filters out high-frequency signals and passes low-frequency signals. A low-pass filter 20 is provided on one side of the band-pass filter 10.

The low-pass filter 20 includes a body portion 21, a coupling portion 24, and a rib 27.

The body portion 21 is installed to extend in one direction on one side of the band-pass filter 10. The body portion 21 may have a cylindrical shape and may be disposed perpendicular to one surface of the bandpass filter 10. The low pass filter 20 should maintain the straightness of the body 21 in consideration of filter performance and maintain the overall concentricity when the body 21 is cylindrical.

The coupling portion 24 is provided at one end of the body portion 21 and connects the body portion 21 to one surface of the bandpass filter 10. Referring to Fig. 2, an example of a flat plate-like engaging portion 24 is shown.

The coupling portion 24 may be provided with a plurality of coupling members 25 for coupling the low-pass filter 20 to one surface of the band-

The coupling portion 24 couples the body portion 21 to the bandpass filter 10 so as to maintain the straightness and concentricity of the body portion 21 well.

The ribs 27 extend in one direction along the outer periphery of the body portion 21 on one side of the engaging portion 24. The ribs 27 are formed in a plurality as shown in Fig. The plurality of ribs 27 may be spaced a predetermined distance from the outer circumference of the body portion 21. For example, the plurality of ribs 27 may be disposed at equal intervals from each other. On the other hand, the ends of each of the plurality of ribs 27 may be oblique along one direction at the side of the engaging portion 24.

Referring to FIG. 2, first and second members 13 and 17 are formed on one side of the band-pass filter 10.

The first member 13 may be made to contact the engaging portion 24. The first member 13 may be configured to include a shape corresponding to the engaging portion 24.

The second member 17 may be formed to extend along one side of the bandpass filter 10 at the outer periphery of the first member 13. The second member 17 may be formed in plural. An example in which the plurality of second members 17 are arranged radially apart from the outer circumference of the first member 13 by a predetermined distance is shown in Fig. Further, the second member 17 extends in the direction intersecting the outer peripheral end of the member 1 at the outer periphery of the member 1 (13).

On the other hand, among the plurality of second members 17, the upward-facing second member 17 may extend to the end of the cover forming the upper surface of the band-pass filter 10.

The vibrations applied to at least one of the band-pass filter 10 and the low-pass filter 20 can be reduced by the structure of the first and second members 13 and 17. It is also possible to maintain the linearity of the low-pass filter 20 while minimizing the weight increase of the band-pass filter 10 by means of the first and second members 13 and 17, It is possible to prevent stress concentration on one side of the sheet.

A plurality of coupling members 25 may be coupled to the first member 13 to couple the low-pass filter 20 to the first member 13. For example, the coupling member 25 may be formed by a bolt-and-nut coupling method. However, the coupling member 25 is not limited thereto. The coupling member 25 may be formed by various methods for coupling the low-pass filter 20 to the first member 13.

(Technical goal: 2060.5 MHz), a bandwidth of 26 MHz (technical goal: 26 MHz), an insertion loss of 0.38 dB (technical goal: 0.45dB) and the return loss was 22.2dB (technical goal: 20dB or more).

The satellite filter 100 described above is not limited to the configuration and the method of the embodiments described above, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications may be made.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: Satellite filter 10: Bandpass filter
13: first member 17: second member
20: low-pass filter 21:
24: engaging portion 25: engaging member
27: rib 30:

Claims (8)

A band-pass filter configured to pass a frequency of a required band; And
And a low-pass filter provided on one side of the band-pass filter for filtering a high-frequency signal and passing a low-frequency signal,
The low-
A body portion extending in one direction to form a body of the low-pass filter;
An engaging part provided at one end of the body part and coupling the body part to one surface of the band-pass filter; And
And a plurality of ribs extending in one direction along an outer periphery of the body portion on one side of the coupling portion so as to reduce vibration applied to the low-pass filter,
On one side of the band-pass filter,
A first member formed to be in contact with the engaging portion; And
And a second member extending from one side of the band-pass filter at an outer periphery of the first member is formed to reduce vibrations applied to at least one of the band-pass filter and the low-pass filter. Satellite filter.
delete The method according to claim 1,
Wherein the second member is formed of a plurality of members, and the plurality of second members are formed in a radial shape so as to be spaced apart from each other by a predetermined distance along the outer periphery of the first member.
The method of claim 3,
Wherein the plurality of second members extend in a direction intersecting the end of the outer periphery of the first member at an end of the outer periphery of the first member.
The method of claim 3,
Wherein said band-pass filter comprises a cover forming an upper surface,
And a portion of the plurality of second portions is connected to an end of the cover. The method according to claim 1,
Wherein the coupling portion is provided with a plurality of coupling members for coupling the low-pass filter to the first member.
The method according to claim 1,
Wherein the plurality of ribs are spaced apart from the outer periphery of the body part by a predetermined distance,
And an end of each of the plurality of ribs has an oblique shape along the one direction from the side of the coupling portion.
The method according to claim 1,
The body portion has a cylindrical shape,
Wherein the body portion is disposed perpendicular to one surface of the band-pass filter.
KR1020160015526A 2016-02-11 2016-02-11 Filter for satellite KR101799470B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160015526A KR101799470B1 (en) 2016-02-11 2016-02-11 Filter for satellite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160015526A KR101799470B1 (en) 2016-02-11 2016-02-11 Filter for satellite

Publications (2)

Publication Number Publication Date
KR20170094598A KR20170094598A (en) 2017-08-21
KR101799470B1 true KR101799470B1 (en) 2017-11-20

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KR1020160015526A KR101799470B1 (en) 2016-02-11 2016-02-11 Filter for satellite

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101326379B1 (en) * 2013-07-04 2013-11-11 신중호 Earthquake-resistant equipment of wind power generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101326379B1 (en) * 2013-07-04 2013-11-11 신중호 Earthquake-resistant equipment of wind power generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
카달로그(Skyware Technology 2014년)*

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