KR200428815Y1 - Horn Feed Monopulse Tracking Antenna - Google Patents

Abstract

The present invention discloses a polarization conversion monopulse tracking antenna using four horn feeds.

) 피드 혼(Feed Horn)에, TE₁₀(TE₀₁)모드 도파관 후렌지 2개씩 출력되게 한 것을 4개( 4-1~4-4)를 1열로 배치하여 출력 후렌지 A₁ A₁＇ B₁ B₁＇ C₁ C₁＇ D₁ D₁＇ 8개의 후렌지 출력되게 하고, 상기 후렌지들을 하이브리드 또는 매직 T로 상호 합, 차가 되게 상호 결합하여 수직 적층 배열의 경우, 합 신호는 B₁ B₁＇C₁ C₁＇합하여 출력하게 하고, 수평차신호는 +A1＇ B1＇+C1＇D1＇와 -A1 -B1 -C1 -D1의 차신호, 수직차신호는 A1 +A1＇+B1 +B1＇와 -C1 -C1＇-D1 -D1＇의 차신호를 출력하게 구성한 것이다.The antenna of the present invention has a pyramid type (located at the center of the main reflector)

) Output Hurenji A ₁ A ₁ ＇B ₁ B by arranging four (4-1 to 4-4) outputs in a row to the feed horn, two TE ₁₀ (TE ₀₁ ) mode waveguide flanges. ₁ ＇C ₁ C ₁ ＇ D ₁ D ₁ 되게 Eight flanges are output, and the summation signals are mutually combined in a hybrid or magic T, mutually coupled to make a difference, and the sum signal is B ₁ B ₁ ＇C ₁ C _{1 is} combined and output, and the horizontal difference signal is + A1 ＇B1＇ + C1＇D1 ＇and -A1 -B1 -C1 -D1 difference signal, and the vertical difference signal is A1 + A1＇ + B1 + B 1 ＇ And -C1 -C1'-D1 -D1 'to output the difference signal.

Feed Horn, Tracking Antenna, Polarization, Honeycomb, Sum Signal, Difference Signal, Hybrid

Description

Horn Feed Monopulse Tracking Antenna Using Horn Feed

1 is a schematic view showing an antenna according to the present invention,

Figure 2a is a cross-sectional view of the feed horn of the antenna according to the present invention,

2b is a plan view and a side view of a feed horn of an antenna according to the present invention;

3 is a feed horn wiring diagram of an antenna according to the present invention,

4a is a detailed configuration diagram of an antenna according to the present invention,

Figure 4b is a front view of the sub-reflection plate of the antenna according to the present invention,

4c is a front view of a polarization converter of an antenna according to the present invention;

4d is a front view of the main reflector of the antenna according to the present invention;

5 is a pattern diagram of an antenna according to the present invention.

* Explanation of symbols for main parts of the drawings

1: sub-reflection plate 2: polarization converter

3: main reflector 4,4-1 to 4-4: feed horn

5: support 6: parallel wire

7: grade line 8: carbon fiber

9,14: honeycomb 10: metal conductor film

12: Urethane or Insulated Honeycomb

13: epoxy plate 15, 17: insulation coating surface

19: epoxy plate

MT: higher ODER EVENMODE

TE ₁₀ -TE ₃₀ Tranduser

A ₁ A ₁ ＇B ₁ B ₁ ＇ C ₁ C ₁ ＇D ₁ D ₁ ＇: Waveguide input terminal

K: waveguide flange

H: Hybrid or Magict

      ξ: dummy load

      ε: Monopuls Horn Sum pattern output

A _Z Δ: Horizontal difference signal

E _L Δ: Vertical difference signal

The present invention relates to a polarization conversion type tracking antenna, and more particularly, to a polarization conversion monopulse tracking antenna using a horn feed.

The present invention is an improved design for a tracking antenna for polarization conversion, which is filed by the applicant with the patent application No. 10-2006-14030 (2006.2.14).

In general, the tracking radar antenna is an antenna for detecting and tracking an object moving at high speed, such as an aircraft or a missile, and it is required to be lightweight in order to quickly track the movement of the object.

However, the conventional tracking radar antenna is made of a metal such as aluminum, such as a reflector, a feed horn, and an enclosure, so that it is difficult to rotate at high speed. When rotating at a high speed with a large-capacity driving device, the driving device is expensive and failure occurs frequently. There was a problem.

The present invention has been proposed to solve the above problems, it is possible to reduce the weight by using a material attached to the fiber reinforced plastics (FRP: Fiber Reinforced Plastics) on both sides of the honeycomb cell, polarization conversion type using four feed horns The purpose is to provide a monopulse tracking antenna.

) 피드 혼(Feed Horn)에, TE₁₀(TE₀₁)모드 도파관 후렌지 2개씩 출력되게 한 것을 4개( 4-1~4-4)를 1열로 배치하여 출력 후렌지 A₁ A₁＇ B₁ B₁＇ C₁ C₁＇ D₁ D₁＇ 8개의 후렌지 출력되게 하고, 상기 후렌지들을 하이브리드 또는 매직 T로 상호 합, 차가 되게 상호 결합하여 수직 적층 배열의 경우In order to achieve the above object, the present invention is a pyramid-shaped (

) Output Hurenji A ₁ A ₁ ＇B ₁ B by arranging four (4-1 to 4-4) outputs in a row to the feed horn, two TE ₁₀ (TE ₀₁ ) mode waveguide flanges. ₁ ＇C ₁ C ₁ ＇ D ₁ D ₁ ＇8 flanges are output, and the flanges are mutually combined or differentially coupled to each other by hybrid or magic T.

The sum signal is output by combining B ₁ B ₁ ＇C ₁ C ₁

Horizontal difference signal is + A1 신호 B1 ＇+ C1＇D1＇ and -A1 -B1 -C1 -D1

The vertical difference signal is configured to output a difference signal of A1 + A1 ＇+ B1 + B 1 ＇ and -C1-C1 ＇-D1-D1 ,,

Horizontal polarization radiated from the feed horn (vertical polarization for an entire 90 ° rotation of the antenna) Polarization-selective sub-reflective plates (insulation plates) are attached to a light insulated honeycomb double-sided epoxy plate and are horizontally polarized in the direction of the main reflector in parallel metal conductor lines attached horizontally. (Vertical polarization when the whole antenna is rotated 90 °) Reflects and transmits the vertical polarization (horizontal polarization when the 90 ° rotation is transmitted) inputted by the polarization conversion vertical polarization (horizontal polarization when the antenna is rotated 90 °). Frequency selective sub-reflective plate,

The main reflector is made of carbon fiber or epoxy on both sides of the lightweight honeycomb, and the inner surface is coated with metal conductors (gold, silver, copper, etc.) to reflect from the inside, and the insulation honeycomb or urethane is coated on the front surface to a certain thickness. Epoxy plate is attached to the front side and parallel metal lines (or narrow and long conductor plates) are laid in parallel (short and continuous parallel connection in some cases) to transmit radio waves coming from the sub-reflective plate, and they are reflected from the main reflector plate. And a polarization converter for converting polarization (vertical polarization when the antenna is rotated by 90 °) into vertical polarization (horizontal polarization when the antenna is rotated by 90 °).

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

1 is a schematic view showing an antenna according to the present invention, the antenna of the present invention is a polarization converter (2) is located between the main reflector 3 and the sub-reflective plate (1), Feed in the central portion of the main reflector (3) Polarization type monopulse antenna composed of four horns (4-1 to 4-4) stacked side by side.

Referring to FIG. 1 in detail, the sub-reflection plate 1 attaches a polarization-selective parallel conductor line 6 after attaching epoxy to the insulating honeycomb curved surface, and attaches the sub-reflection plate 1 to the main reflection plate 3 as the supporting insulator 5. To the main reflector 3, and attaches an auxiliary reflector for polarization conversion (hereinafter referred to as a 'polarization converter') 2, and feeds a horn at the center of the main reflector 3; -2, 4-3, 4-4) are stacked side by side, and two waveguide flanges TE ₁₀ (TE ₀₁ ) are drawn in each feed horn and combined with each other to extract a sum signal, A _{Z difference} signal, and E _{L difference} signal. It is a tracking antenna using 4 Horn Multi MODE Monopluse Feed.

Figure 2a is a cross-sectional view of the feed horn of the antenna according to the present invention, Figure 2b is a plan view and side view of the feed horn of the antenna according to the present invention.

형 피라미드형 혼은 개구 TE₃₀ 이상 모드 구성하고, 이것을 TE₁₀ 구성 후 다시 TE₁₀ A₁ TE₁₀ A₁＇2개 출력 후렌지로 인출하고, 이러한 Horn을 4-1,4-2,4-3,4-4를 나란히 적층하여 도 2b에 도시된 바와 같이 후렌지 A₁ A₁＇ B₁ B₁＇ C₁ C₁＇ D₁ D₁＇ 8개를 인출한다.In accordance with the invention a multi-mode (Multi Mode) horn configuration diagram of a plan view of the horn 1, as ₄₁ shown in Figure 2a

The pyramid-shaped horn is composed of an opening TE ₃₀ or higher mode, and after the TE ₁₀ configuration, it is again taken out of TE ₁₀ A ₁ TE ₁₀ A ₁ , 2 output flanges, and the horns 4-1,4-2,4-3 4-4 are stacked side by side to extract 8 Hurenji A ₁ A ₁ 후 B ₁ B ₁ ＇C ₁ C ₁ ＇ D ₁ D ₁ ＇as shown in FIG. 2B.

3 is a feed horn wiring diagram of an antenna according to the present invention.

Referring to FIG. 3, the output flanges of the feed horns 4-1 to 4-4 A ₁ A ₁ ＇B ₁ B ₁ ＇ C ₁ C _{1 4} D ₁ D ₁ ＇output through the waveguide / feeder, etc. Synthesized with the back (H)

+ B ₁ + B ₁ ＇+ C ₁ + C ₁ ＇ sum signal,

+ A ₁ + A ₁ ＇+ B ₁ + B ₁ ＇ -C ₁ -C ₁ ＇-D ₁ -D ₁ ＇ E _{Z difference} signal,

+ A ₁ + A ₂ + A ₃ + A ₄ -A ₁ ＇+ A ₂ ＇ -A ₃ -A ₄ ＇A _Z Difference signal is output.

4A is a detailed configuration diagram of an antenna according to the present invention, FIG. 4B is a front view of a sub-reflection plate of the antenna according to the present invention, FIG. 4C is a front view of a polarization converter of the antenna according to the present invention, and FIG. 4D is a present invention. Is a front view of the main reflector of the antenna.

Referring to FIG. 4A, in the sub-reflective plate, a plurality of parallel conductive lines are disposed on the concave surface of the plate in which the honeycomb cell is formed between the epoxy plates, and the parallel conductive lines are protected by the insulating coding surface.

Urethane or insulating honeycomb is filled between the main reflector and the polarization converter, and the main reflector has a metal conductor film that reflects radio waves on the concave surface of the plate where the honeycomb cell is formed between the carbon fibers and the honeycomb between the epoxy plates and the honeycomb between the epoxy plates. Inclined lines are arranged on the concave surface of the plate on which the cells are formed, and the inclined line is protected by the insulating coating surface.

Four feed horns 4-1 to 4-4 are located at the center of the main reflector 3 and the polarization converter 2.

FIG. 4B is a front view of the sub-reflective plate 1, in which the sub-reflective plate 1 attaches a parallel conductor wire 6 made of metal to the concave surface of the plate on which the epoxy plate 13 is attached on both sides of the insulating honeycomb 14. Insulation coating 15.

FIG. 4C is a front view of the polarization transducer 2, which attaches an epoxy plate 19 to both sides of the insulating honeycomb 18, and inclines about 45 ° to the parallel conductor line 6 of FIG. 4B. The conductor wire (single wire can be attached continuously) 7 is attached and the insulation coating 17 is carried out.

FIG. 4D is a front view of the main reflector 3, in which the main reflector 3 attaches a carbon fiber or epoxy plate 8 to both surfaces of the honeycomb 9, and attaches and coats the metal conductor 10 to the concave inner plate. It is surface-treated with (gold, silver, copper, etc. metal).

 In addition, it is a double reflecting plate which maintains a predetermined distance between the polarization converter 2 and the main reflector 3 with an insulating urethane or an insulating honeycomb 12 so that a 90 degree polarization conversion is possible in the case of radio waves.

형 피드 혼 4개( 4-1~4-4)를 수평으로 적층(

) 또는 안테나 전체를 90° 회전 수직으로 적층(

)하여, 단일 배열형 편파 변환용(수평편파 → 수직변환 운영 또는 수직편파 → 수평변환운영) 안테나 장치이다.On the main reflector (3) as above

4 type feed horns (4-1 ~ 4-4) horizontally stacked (

) Or stack the antenna 90 ° vertically (

Antenna unit for single array polarization conversion (horizontal polarization → vertical conversion operation or vertical polarization → horizontal conversion operation).

5 is a pattern diagram of an antenna according to the present invention, a sum radiation pattern diagram, an Az order pattern diagram, and an E _{L difference} pattern diagram are illustrated.

As described above, the polarization-converting monopulse tracking antenna according to the present invention has a light structure using a honeycomb cell and has an effect of providing an excellent tracking function using four feed horns.

Claims (4)

Pyramid type located in the center of main reflector

) Output Hurenji A ₁ A ₁ ＇B ₁ B by arranging four (4-1 to 4-4) outputs in a row to the feed horn, two TE ₁₀ (TE ₀₁ ) mode waveguide flanges. ₁ ＇C ₁ C ₁ ＇ D ₁ D ₁ ＇8 flanges are output, and the flanges are mutually combined or differentially coupled to each other by hybrid or magic T. The sum signal is output by combining B ₁ B ₁ ＇C ₁ C ₁ , The horizontal difference signal is a difference signal of + A1 ＇B1＇ + C1 -D1 ＇and -A1 -B1 -C1 -D1, The vertical difference signal is a polarized conversion monopulse tracking antenna using a horn feed, characterized in that for outputting the difference signal of A1 + A1 ＇+ B1 + B 1 ＇ and -C1-C1 ＇-D1-D1＇. The parallel metal conductor wire according to claim 1, wherein a horizontal polarization (vertical polarization in case of full 90 ° rotation of the antenna) polarized selective sub-reflective plate (insulation plate) is attached to a light insulated honeycomb double-sided epoxy plate and is horizontally attached. Reflect the horizontal polarization (vertical polarization when the whole antenna is rotated 90 °) in the direction of the main reflector, and input the polarization conversion vertical polarization (horizontal polarization when the entire antenna is rotated 90 °) from the main reflector Polarization conversion monopulse tracking antenna using a horn feed, characterized in that it comprises a frequency selective sub-reflection plate to transmit horizontal polarization. According to claim 2, wherein the main reflector plate is attached to the carbon fiber or epoxy on both sides of the lightweight honeycomb and the inner surface is coated with a metal conductor (gold, silver, copper, etc.) to reflect from the inside, and the insulating honeycomb or urethane is applied to the front surface. Apply it to a certain thickness, and attach the epoxy plate to the front side, and then install parallel metal wires (or narrow and long conductor plates) in parallel (short and continuous connection in some cases) to transmit radio waves coming from the sub-reflective plate, and reflect them on the main reflector Polarization conversion monopulse tracking using a horn feed, characterized by a polarization converter for converting horizontal polarization (vertical polarization when antenna is rotated by 90 °) to vertical polarization (horizontal polarization when antenna is rotated by 90 °) during transmission. antenna. Pyramid type located in the center of main reflector

) Output Hurenji A ₁ A ₁ ＇B ₁ B by arranging four (4-1 to 4-4) outputs in a row to the feed horn, two TE ₁₀ (TE ₀₁ ) mode waveguide flanges. ₁ ＇C ₁ C ₁ ＇ D ₁ D ₁ ＇8 flanges are output, and the flanges are mutually combined or differentially coupled to each other by hybrid or magic T. The sum signal is output by combining B ₁ B ₁ ＇C ₁ C ₁ Horizontal difference signal is + A1 신호 B1 ＇+ C1＇D1＇ and -A1 -B1 -C1 -D1 The vertical difference signal is configured to output a difference signal of A1 + A1 ＇+ B1 + B 1 ＇ and -C1-C1 ＇-D1-D1 ,, Horizontal polarization radiated from the feed horn (vertical polarization for an entire 90 ° rotation of the antenna) Polarization-selective sub-reflective plates (insulation plates) are attached to a light insulated honeycomb double-sided epoxy plate and are horizontally polarized in the direction of the main reflector in parallel metal conductor lines attached horizontally. (Vertical polarization when the whole antenna is rotated 90 °) Reflects and transmits the vertical polarization (horizontal polarization when the 90 ° rotation is transmitted) inputted by the polarization conversion vertical polarization (horizontal polarization when the antenna is rotated 90 °). Frequency selective sub-reflective plate, Carbon reflector or epoxy is attached on both sides of the main reflector plate, and the inner surface is coated with metal conductor to reflect from the inside, and the insulation honeycomb or urethane is applied on the front side with a certain thickness. It is installed in parallel to transmit the radio wave from the sub-reflection plate, and reflects from the main reflection plate to convert horizontal polarization (vertical polarization when the antenna is rotated by 90 °) to vertical polarization (horizontal polarization when the antenna is rotated by 90 °). A polarization conversion monopulse tracking antenna using a horn feed, characterized by comprising a polarization converter.

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