KR20100001550A - Antenna using folded reflectarray - Google Patents
Antenna using folded reflectarray Download PDFInfo
- Publication number
- KR20100001550A KR20100001550A KR1020080061492A KR20080061492A KR20100001550A KR 20100001550 A KR20100001550 A KR 20100001550A KR 1020080061492 A KR1020080061492 A KR 1020080061492A KR 20080061492 A KR20080061492 A KR 20080061492A KR 20100001550 A KR20100001550 A KR 20100001550A
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- KR
- South Korea
- Prior art keywords
- waveguide
- feed horn
- folded
- array antenna
- antenna
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/16—Folded slot antennas
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- Waveguide Aerials (AREA)
Abstract
Description
BACKGROUND OF THE
An antenna that emits electromagnetic signals in a specific direction and receives electromagnetic waves reflected from an object is an essential component that determines overall performance in a distance control system and a position tracking system with an object. For example, research into the antenna that can be applied to such a system has been actively conducted. Various types of location tracking systems have been developed based on two methods: sequential lobing and simultaneous lobing. The monopulse type is one of the simultaneous roving methods. Both sequential roving and simultaneous roving compare the electromagnetic wave signals reflected from the target to determine the angle at which the electromagnetic wave is reflected. This approach applies to most positioning radar systems, and the monopulse format performs the comparison of these electromagnetic signals simultaneously. The compact, millimeter-band monopulse-type antennas with small lateral depth can be used in many applications such as positioning radars and sophisticated RF sensors. In particular, in the case of an antenna using a folded reflectarray structure, unlike an ordinary parabolic antenna, the antenna can be manufactured in a flat surface, which is easy to manufacture, and the thickness of the antenna side can be applied to a small system. It is attracting attention recently because of its presence and the high gains.
FIG. 1 is a diagram schematically illustrating a configuration of an
Specifically, when the antenna operates as a transmitting antenna, when the radio wave radiated from the
In addition, referring to FIG. 1, it can be seen that the
On the other hand, since the physical size of the distance control system and the position tracking system has become smaller in recent years, the need to further reduce the size of the folded reflective array antenna as shown in FIG. 1 is increasing.
However, since the size of the antenna is increased by the length of the
Accordingly, an object of the present invention, in order to solve all the problems of the prior art as described above, the feed horn (connect horn) to the wide side of the waveguide of the folded reflection array antenna and the input and output terminals on the opposite wide side By doing so, the assembly process of the folded reflective array antenna can be performed more easily.
In addition, another object of the present invention is to enable the waveguide and the feed horn, which are the components included in the antenna, to be combined in an integrated state, thereby achieving stability of the antenna structure and implementing a simpler assembly process.
The characteristic structure of this invention for achieving the objective of this invention mentioned above, and realizing the characteristic effect of this invention mentioned later is as follows.
According to one aspect of the present invention, there is provided a folded reflective array antenna, comprising: a waveguide having an input terminal and an output terminal on a first surface and a second surface of which the area constituting the waveguide is not the minimum, and the waveguide input terminal; A folded reflection array antenna including a feed horn coupled to the waveguide is provided.
According to another aspect of the invention, there is at least one input end and an output end, respectively, on a first side and a second side, wherein the input end has an opening on the first side. Provided is a folded reflective array antenna including a waveguide formed in a shape, and a feed horn inserted into at least a portion of the opening and coupled to the waveguide.
According to yet another aspect of the present invention, a folded reflection array antenna, comprising: a waveguide having at least one input terminal and an output terminal on a first surface and a second surface, respectively, and coupled to the waveguide through an input terminal of the waveguide. Including a feed horn, the feed horn is provided is folded folded array antenna is formed surrounded by the outer member.
According to the present invention, by providing a structure that connects a feed horn to the wide surface of the waveguide of the folded reflector antenna and the input and output terminals on the opposite wide surface, a thin folded folded array antenna There is an effect that can be easily designed and manufactured.
In addition, according to the present invention, by proposing a structure in which the waveguide, the feed horn and the like of the folded reflection array antenna is integrated, there is an effect that can withstand high output with high durability.
DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.
Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
2 is a view showing the overall configuration of the folded
Referring to FIG. 2, the folded
In the folded
The
Waveguide rescue
Hereinafter, the structure of the
The
According to one embodiment of the invention, the
2 or 3, the
According to an embodiment of the present invention, the
In addition, the
3A and 3B are diagrams illustrating in detail the structures of the
Referring to FIG. 3A, the
Next, referring to FIG. 3B, the
On the other hand, it is preferable that the end surface A and the end surface B in which the input terminal and the output terminal are respectively located are the widest surfaces of the waveguide. This is because placing the input terminal and the output terminal on the widest surface can easily perform the assembly process.
Meanwhile, the
4A is a diagram illustrating a
Referring to FIG. 4A, the comparator corresponds to a sum, azimuth difference, and elevation difference mode using four input terminals (
Referring to FIG. 4B, in detail, since the input electromagnetic waves of the
As a technique for designing the comparator, written by H. Lee et al. 2, MINT-MIS2007 / TSMMW2007 / MilliLab Workshop, Seoul, Korea, pp. 115-118, Feb. An example is the paper published in 2007. "94GHz waveguide monopulse comparator using circular cavity hybrid." This paper describes the specific operation of a comparator that receives signals from four input stages and transmits three outputs corresponding to the sum, horizontal and vertical difference modes as described above. To be incorporated into the specification).
In addition, as a technique for designing the comparator, M. Kishihara, 1999 Asia Pacific Microwave Conference Proc., Vol. 2, pp. 500-503, Nov. For example, the article "Analysis and Desing of Radial Waveguide E-plane Hybrids" introduced in 1999. The paper describes an exemplary method of designing a comparator using a cylindrical cavity hybrid (the content of the paper should be considered to be incorporated herein in its entirety).
As described above, by placing the
Of Feedhorn (220) rescue
Hereinafter, the structure of the
First, referring to FIG. 2, the
2, the
In addition, according to one embodiment of the present invention, as shown in Figure 2, the portion of the
On the other hand, Figure 5 is a view showing the structure of the
Referring to FIG. 5, the
According to a preferred embodiment of the present invention, the
As a technique for designing the multi-mode feed horn, written by P. W. Hannan, IRE Transactions on Antenna and Propagation, pp. 444-461, Sep. For example, the paper introduced in 1961. "Optimum feeds for all three modes of a monopulse radar I, II: Theory and practice," The paper describes a method of designing a multi-mode feed horn suitable for electromagnetic waves in a high frequency band, that is, a short wavelength, while having a relatively simple structure (the contents of the paper are incorporated herein in their entirety. Should be considered).
Although the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided to assist in a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations can be made from such descriptions.
Accordingly, the spirit of the present invention should not be limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the appended claims, fall within the scope of the spirit of the present invention. I will say.
FIG. 1 is a diagram schematically illustrating a configuration of an
2 is a view showing the overall configuration of the folded
3A and 3B are diagrams illustrating in detail the structures of the
4A illustrates a
5 is a diagram illustrating a structure of the
<Explanation of symbols for the main parts of the drawings>
210: waveguide
211, 212, 213, 214: Input stage
215, 216: output stage
217: transmission path
220: Feedhorn
221: coupling part
222: horn
223: outer member
224: fork
230: Reflect Array
240: polarizing grid
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020080061492A KR20100001550A (en) | 2008-06-27 | 2008-06-27 | Antenna using folded reflectarray |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080061492A KR20100001550A (en) | 2008-06-27 | 2008-06-27 | Antenna using folded reflectarray |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2020100001653U Division KR20100003893U (en) | 2010-02-16 | 2010-02-16 | Antenna using folded reflectarray |
Publications (1)
Publication Number | Publication Date |
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KR20100001550A true KR20100001550A (en) | 2010-01-06 |
Family
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Family Applications (1)
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KR1020080061492A KR20100001550A (en) | 2008-06-27 | 2008-06-27 | Antenna using folded reflectarray |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114649686A (en) * | 2022-05-16 | 2022-06-21 | 电子科技大学 | High-gain folding type planar reflective array antenna with filtering characteristic |
CN116014443A (en) * | 2022-12-30 | 2023-04-25 | 东莞市猎声电子科技有限公司 | Antenna horn proximity gain structure and gain method |
-
2008
- 2008-06-27 KR KR1020080061492A patent/KR20100001550A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114649686A (en) * | 2022-05-16 | 2022-06-21 | 电子科技大学 | High-gain folding type planar reflective array antenna with filtering characteristic |
CN114649686B (en) * | 2022-05-16 | 2022-08-02 | 电子科技大学 | High-gain folding type planar reflective array antenna with filtering characteristic |
CN116014443A (en) * | 2022-12-30 | 2023-04-25 | 东莞市猎声电子科技有限公司 | Antenna horn proximity gain structure and gain method |
CN116014443B (en) * | 2022-12-30 | 2023-11-07 | 东莞市猎声电子科技有限公司 | Antenna horn proximity gain structure and gain method |
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