A new type of KU band high frequency head feed source

Abstract

The invention discloses a novel KU band high-frequency head feed source, comprising a horn and a cap assembled with the horn; a horn mouth extension section and a horn mouth are sequentially arranged from a signal inlet end to a signal outlet end; an axis groove is arranged between a cavity wall of the horn mouth and a cavity wall of the horn mouth extension section, and an opening of the axis groove faces the signal inlet end of the horn; an axis groove is arranged in the cap, and the axis groove is used for assembling the cavity wall of the horn mouth extension section; the cap comprises a cap body and a dielectric gasket, and the dielectric gasket is overlapped and connected with the cap body; the dielectric gasket is between the cap body and the signal inlet end of the horn; the feed horn has the characteristics of reduced horn mouth and good signal reception.

Description

Technical Field

[0001] The invention relates to the field of communication technology, and in particular to a novel KU band high-frequency head feed source. Background Art

[0002] like Figure 1 As shown, the conventional high-frequency head feed horn is used to receive the satellite signal reflected by the reflector antenna, and includes a feed horn 1' and a cap 9' covering the feed horn 1', and the cap 9' plays a protective role. The reflector antenna reflects the received satellite signal to the feed horn mouth, and the signal of the receiving antenna feed is first converted into a linear polarized wave, and then transmitted to the polarization probe through the waveguide, and then received and processed by the high-frequency head.

[0003] Prior art KU band high frequency head feed source horn 1 ', the structure is as follows Figure 2 As shown, the feed horn 1' is divided into two ends, namely an inlet end 7' and an outlet end 8', and the signal enters from the inlet end 7' and is output from the outlet end 8'; along the inlet end 7' to the outlet end 8' of the horn 1', the horn 1' comprises a first bell mouth extension section 3', a second bell mouth extension section 4' and a bell mouth 2' in sequence; wherein the inner diameter of the first bell mouth extension section 3' is greater than the inner diameter of the second bell mouth extension section 4', the inner diameter of the second bell mouth extension section 4' is greater than the inner diameter of the bell mouth 2', the inner diameter of the first bell mouth extension section 3' is 48mm, and the inner diameter of the second bell mouth extension section 4' is 48mm. 'The inner diameter is 40mm; a first shaft groove 5' is set between the first bell mouth extension section 3' and the second bell mouth extension section 4', and a second shaft groove 6' is set between the second bell mouth extension section 4' and the bell mouth 2', and the openings of the first shaft groove 5' and the second shaft groove 6' face the inlet end 7' of the speaker 1'; the inner cavity diameter of the speaker 1' is gradually enlarged through the three-stage structure, so that the diameter of the bell mouth at the final inlet end 7' is relatively large, the production process is relatively complicated, and when two feed speakers 1' are installed at the same time, due to size restrictions, the overly large bell mouth will affect the installation of the feed speaker 1'. However, if the first bell mouth extension section 3' and the first shaft groove 5' are simply subtracted, or the diameter of the first bell mouth extension section 3' is reduced, it will affect the signal collection, and the high-frequency head will be weakened when receiving the signal, which will cause poor reception quality, such as image and sound distortion.

[0004] In view of the above problems, the present invention designs a novel KU band high frequency head feed source, and this case is thus generated. Summary of the invention

[0005] The present invention provides a novel KU band high-frequency head feed source, wherein the feed source horn has the characteristics of reduced horn mouth and good signal reception; specifically, the present invention is implemented through the following technical solutions:

[0006] A novel KU band high-frequency head feed source comprises a horn and a cap assembled with the horn; one end of the horn is a signal inlet end, and the other end is a signal outlet end; the cap covers the inlet end of the horn; along the signal inlet end to the signal outlet end of the horn, the horn comprises a horn mouth extension section and a horn mouth in sequence; an axial groove is arranged between the cavity wall of the horn mouth and the cavity wall of the horn mouth extension section, and the opening of the axial groove faces the signal inlet end of the horn; an axial groove is arranged in the cap, and the axial groove is used to fit the cavity wall of the horn mouth extension section; the cap comprises a cap body and a dielectric gasket, and the dielectric gasket is overlapped and connected with the cap body; the dielectric gasket is located between the cap body and the signal inlet end of the horn.

[0007] Furthermore, the cap is an integral structure or a split structure.

[0008] Further, the thickness of the cap ranges from 6 mm to 12 mm.

[0009] Preferably, the thickness of the cap is 9 mm.

[0010] Furthermore, the dielectric gasket is a circular cylinder with a diameter ranging from 33 mm to 39 mm.

[0011] Preferably, the diameter of the dielectric spacer is 36 mm.

[0012] Furthermore, a plurality of annular protrusions or grooves are arranged on one end of the dielectric gasket for connection with the cap body, and the plurality of annular protrusions or grooves are arranged to diverge outward in sequence along the center of the dielectric gasket to form a pattern; similarly, a plurality of annular grooves or protrusions are arranged on one end of the cap body for connection with the dielectric gasket, and the plurality of annular grooves or protrusions are arranged to diverge outward in sequence along the center of the cap body to form a pattern; the annular protrusions or grooves of the dielectric gasket are engaged with the grooves or protrusions of the cap body.

[0013] Furthermore, the inner diameter of the bell mouth gradually expands from the signal outlet end to the inlet end of the bell; and the inner diameter of the bell mouth extension section is larger than the inner diameter of the bell mouth.

[0014] Furthermore, the inner diameter of the bell mouth extension section ranges from 37 mm to 43 mm.

[0015] Preferably, the inner diameter of the bell-mouth extension section is 40 mm.

[0016] The beneficial effects of this application are:

[0017] The speaker is changed from the original three-section structure to a two-section structure, and the horn mouth extension section closest to the signal inlet end of the speaker, that is, the first horn mouth extension section of the prior art is removed; therefore, the diameter at the signal inlet end of the speaker becomes smaller. At the same time, in order to reduce the negative impact of the smaller diameter of the signal inlet end on signal collection, a dielectric gasket is added between the cap body and the speaker inlet end to enhance the high-frequency head signal collection.

[0018] At the same time, textures are arranged on the dielectric gasket, and corresponding textures are also arranged on the cap body. The dielectric gasket and the cap body are connected by the engagement of the textures. At the same time, the design of the textures can enhance the signal collection of the high-frequency head.

[0019] Through the above design, the caliber of the speaker is reduced while its signal collection function is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 An exploded diagram of the structure of an existing feed horn provided by the present invention;

[0021] Figure 2 A schematic diagram of the structure of an existing feed horn provided by the present invention;

[0022] Figure 3 An exploded diagram of a novel KU band high-frequency head feed structure provided by the present invention;

[0023] Figure 4 An assembly cross-sectional view of a novel KU band high-frequency head feed structure provided by the present invention;

[0024] Figure 5 A cross-sectional view of an embodiment of a feed horn provided by the present invention;

[0025] Figure 6 A top view of a feed horn provided by the present invention;

[0026] Figure 7 for Figure 6 AA direction schematic diagram;

[0027] Figure 8 It is the experimental data diagram of the present invention;

[0028] Fig. 9 It is the experimental data diagram of the present invention;

[0029] Fig.10 It is the experimental data diagram of the present invention;

[0030] Fig.11 It is the experimental data diagram of the present invention;

[0031] Fig.12 It is the experimental data diagram of the present invention;

[0032] Fig.13 This is an experimental data diagram of the present invention.

[0033] Among them: 1'. Trumpet; 2'. Bell mouth; 3'. First bell mouth extension; 4'. Second bell mouth extension; 5'. First axial groove; 6'. Second axial groove; 7'. Inlet end; 8'. Outlet end; 9'. Cap; 1. Trumpet; 2. Bell mouth extension; 3. Bell mouth; 4. Bell mouth cavity wall; 5. Bell mouth extension cavity wall; 6. Axis groove; 7. Cap; 8. Cap body; 9. Medium gasket; 10. Inlet end; 11. Outlet end; 12. Texture. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figure 3 As shown, a novel KU band high-frequency head feed source includes a speaker 1 and a cap 7, and the cap 7 is assembled with the speaker 1; Figure 4 , Figure 5 As shown, the speaker 1 is divided into two ends, namely an inlet end 10 and an outlet end 11, and the signal enters from the inlet end 10 and is output from the outlet end 11; the inlet end 10 of the speaker 1 is used to be assembled with the cap 7, and the outlet end 11 of the speaker 1 is used to be connected with the waveguide; along the inlet end 10 to the outlet end 11 of the speaker 1, there are a bell mouth extension section 2 and a bell mouth 3; along the outlet end 11 to the inlet end 10 of the speaker 1, the inner diameter of the bell mouth 3 gradually expands; an axial groove 6 is provided between the cavity wall 4 of the bell mouth and the cavity wall 5 of the bell mouth extension section, and the opening of the axial groove 6 faces the inlet end 10 of the speaker 1.

[0036] The inner diameter of the bell-mouth extension section 2 ranges from 37 mm to 43 mm, preferably 40 mm.

[0037] The inner diameter of the bell mouth extension section 2 is larger than the inner diameter of the bell mouth 3 .

[0038] like Figure 3 , Figure 4 As shown, the cap 7 includes a cap body 8 and a dielectric gasket 9, and the dielectric gasket 9 is overlapped and connected with the cap body 8; when the cap 7 covers the inlet end 10 of the speaker 1, the dielectric gasket 9 is located between the cap body 8 and the inlet end 10 of the speaker 1.

[0039] The dielectric gasket 9 is formed by injection molding of PP material.

[0040] The cap 7 can be formed in one piece, that is, the cap body 8 and the dielectric gasket 9 are directly made in one piece; the cap 7 can also be a split structure, that is, the cap body 8 and the dielectric gasket 9 are made separately and then combined to form the cap 7.

[0041] The dielectric gasket 9 is a circular cylinder with a diameter ranging from 33 mm to 39 mm; preferably, the diameter of the dielectric gasket 9 is 36 mm.

[0042] The thickness of the cap 7 ranges from 6 mm to 12 mm, and preferably is 9 mm.

[0043] The specific overlapping connection method of the cap 7 and the dielectric gasket 9 is as follows:

[0044] like Figure 4 , Figure 6 , Figure 7 As shown, a plurality of annular protrusions or grooves are arranged on one end of the dielectric gasket 9 for connection with the cap body 8, and the plurality of annular protrusions or grooves are arranged outwardly in sequence along the center of the dielectric gasket 9 to form a pattern 12. Similarly, a plurality of annular grooves or protrusions are arranged on one end of the cap body 8 for connection with the dielectric gasket 9, and the plurality of annular grooves or protrusions are arranged outwardly in sequence along the center of the cap body 8 to form a pattern 12; the annular protrusions or grooves of the dielectric gasket 9 are fitted with the grooves or protrusions of the cap body 8 to form a complete cap 7.

[0045] The design of the lines 12 on the cap body 8 and the dielectric gasket 9 makes the combined cap 7 have a stronger ability to receive signals.

[0046] The connection method between the cap 7 and the speaker 1 is as follows:

[0047] An axial groove 6 is provided in the cap 7; after assembly, the cavity wall 5 of the bell mouth extension section is embedded in the axial groove 6 of the cap 7, so that the two are tightly connected.

[0048] The above new KU band high frequency head feed source speaker was tested and the results were as follows: Figures 8 to 13 of experimental data.

[0049] The above are preferred implementations of the present invention. Several other simple substitutions and modifications made under the premise of the concept of the present invention should be regarded as belonging to the protection scope of the present invention.

Claims

1. A new type of KU band high-frequency head feed source, characterized by: It comprises a speaker and a cap assembled with the speaker; along the signal inlet end to the signal outlet end, a bell mouth extension section and a bell mouth are sequentially arranged; an axis groove is arranged between the cavity wall of the bell mouth and the cavity wall of the bell mouth extension section, and the opening of the axis groove faces the signal inlet end of the speaker; an axis groove is arranged in the cap, and the axis groove is used to fit the cavity wall of the bell mouth extension section; the cap comprises a cap body and a dielectric gasket, and the dielectric gasket is superimposed and connected with the cap body; the dielectric gasket is located between the cap body and the signal inlet end of the speaker; Among them, a plurality of annular protrusions or grooves are arranged on one end of the dielectric gasket for connecting with the cap body, and the plurality of annular protrusions or grooves are arranged to diverge outwards in sequence along the center of the dielectric gasket to form a pattern; similarly, a plurality of annular grooves or protrusions are arranged on one end of the cap body for connecting with the dielectric gasket, and the plurality of annular grooves or protrusions are arranged to diverge outwards in sequence along the center of the cap body to form a pattern; the annular protrusions or grooves of the dielectric gasket are engaged with the grooves or protrusions of the cap body; The inner diameter of the bell mouth gradually expands from the signal outlet end to the inlet end of the bell; the inner diameter of the bell mouth extension section is larger than the inner diameter of the bell mouth.

2. A novel KU band high-frequency head feed source according to claim 1, characterized in that: The cap is an integral structure or a split structure.

3. A novel KU band high-frequency head feed source according to claim 1 or 2, characterized in that: The thickness of the cap ranges from 6mm to 12mm.

4. A novel KU band high-frequency head feed source according to claim 3, characterized in that: The thickness of the cap is 9mm.

5. The novel KU band high-frequency head feed source according to claim 1 is characterized in that: The dielectric gasket is a round cylinder with a diameter ranging from 33mm to 39mm.

6. A novel KU band high-frequency head feed source according to claim 5, characterized in that: The diameter of the dielectric spacer is 36 mm.

7. The novel KU band high-frequency head feed source according to claim 1 is characterized in that: The inner diameter of the bell mouth extension ranges from 37mm to 43mm.

8. The novel KU band tuner feed source according to claim 7 is characterized in that: The inner diameter of the bell mouth extension is 40 mm.

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