CN208173799U - A kind of KU heavy caliber horn feed - Google Patents

Abstract

The utility model relates to a kind of KU heavy caliber horn feed, solution is that feed signal is weak and cover frequency point and the small technical problem of range of receiving, includes waveguide and positioned at the waveguide mouth of waveguide front end by using the KU heavy caliber horn feed；Waveguide mouth includes the first bore waveguide ring, the second bore waveguide ring and the third bore waveguide ring of socket；The internal diameter of first bore waveguide ring is 52mm ± 0.05mm, and the internal diameter of the second bore waveguide ring is 42mm ± 0.05mm, and the internal diameter of third bore waveguide ring is 33.6 ± 0.05mm；First bore waveguide annulate shaft depth is 14.75mm, and the axis depth of the second bore waveguide ring is the technical solution of 14.75mm, preferably resolves the problem, can be used in antenna applications.

Description

A kind of KU heavy caliber horn feed

Technical field

The utility model relates to field of antenna, and in particular to a kind of KU heavy caliber horn feed.

Background technique

Feed is the element of parabola antenna, Cassegrain antenna, is the primary radiator of high-gain aerial. It becomes high-frequency current or constraint electromagnetic wave the electromagnetic wave energy of radiation, usually a moderate directivity antenna.

Existing common waveguide horn feed has that feed signal is weak and covers frequency point and range of receiving is small, therefore There is provided that a kind of feed signal is strong, cover frequency point and KU heavy caliber horn feed that range of receiving is big is with regard to necessary.

Utility model content

Technical problem to be solved in the utility model be feed signal existing in the prior art it is weak and cover frequency point and The small technical problem of range of receiving.A kind of new KU heavy caliber horn feed is provided, which has high frequency And the matching of low-frequency range radiance field pattern, otherness reduce, feed overall performance gets a promotion, and radiation pattern circularity improves, and And zero obvious feature of deep effect.

In order to solve the above technical problems, the technical solutions adopted are as follows：

A kind of KU heavy caliber horn feed, the KU heavy caliber horn feed include waveguide and be located at waveguide front end Waveguide mouth；Waveguide mouth includes the first bore waveguide ring, the second bore waveguide ring and the third bore waveguide ring of socket；First The internal diameter of diameter waveguide ring is 52mm ± 0.05mm, and the internal diameter of the second bore waveguide ring is 42mm ± 0.05mm, third bore waveguide The internal diameter of ring is 33.6 ± 0.05mm；First bore waveguide annulate shaft depth is 14.75mm, and the axis depth of the second bore waveguide ring is 14.75mm。

The working principle of the utility model：The KU heavy caliber horn feed of the utility model is in common waveguide horn feed On the basis of improve, it is weak to conventional horn feed signal and cover frequency point and range of receiving is small asks for the market demand Topic is improved, and common waveguide is conical horn opening, and each collar extension diameter is smaller, and each collar extension diameter of loudspeaker opening of improvement, which has, to be added Greatly, radially enlarged between ring and ring, axially deepen between ring and ring, to improve radiation pattern, makes full use of and more receive Focus signal from parabola antenna.Conventional horn maximum open diameter 48.0mm, the present embodiment improve loudspeaker maximum open Diameter 52.0mm.

In above scheme, for optimization, further, the internal diameter of the first bore waveguide ring is 52mm, the second bore wave The internal diameter of lead ring is 42mm, and the internal diameter of third bore waveguide ring is 33.6mm.

Further, the first face of the first bore waveguide ring and the first face axis difference of the second bore waveguide ring are 8.7mm；The first face of first bore waveguide ring and the first face axis difference of third bore waveguide ring are 17.35mm.

Further, the degree of eccentricity of the waveguide is less than 0.1mm.

The beneficial effects of the utility model：Guaranteeing high frequency and low frequency radiation by improved KU heavy caliber horn feed On the basis of performance, high frequency and low frequency radiation performance are enhanced, and high frequency and low frequency radiation performance is made to reach opposite balance, Simulation comparison analysis and laboratory proofing have been carried out for current different number of rings corrugation loudspeaker feed sources, has compared existing 3 ring and 4 rings Feed, low frequency is fine, and high frequency field pattern and minor lobe characteristic are suitable;In the case where not increasing cost, performance is better than common 3 ring, Performance is slightly better than 4 rings and than common 4 ring more save the cost.High frequency and the matching of low-frequency range radiance field pattern, otherness reduce, Feed overall performance gets a promotion, and radiation pattern circularity improves, and zero deep effect is obvious.The KU heavy caliber horn feed has The advantages that promotion signal, signal stabilization, meets premium quality product requirement.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1, conventional horn feed schematic diagram.

Fig. 2, KU heavy caliber horn feed schematic diagram in embodiment 1.

Fig. 3, KU heavy caliber horn feed side view in embodiment 1.

Fig. 4, KU heavy caliber horn feed direct-view figure in embodiment 1.

Fig. 5, connector scheme of installation.

Fig. 6, VSWR test comparison schematic diagram.

Fig. 7,10.7GHz far field radiation pattern schematic diagram.

In figure：1- waveguide, 2- waveguide mouth, 3- the first bore waveguide ring, 4- the second bore waveguide ring, 5- third bore wave Lead ring.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain that this is practical new Type is not used to limit the utility model.

Embodiment 1

The present embodiment provides a kind of KU heavy caliber horn feeds, and such as Fig. 2 and Fig. 4, the KU heavy caliber horn feed includes Waveguide 1 and waveguide mouth 2 positioned at 1 front end of waveguide；Such as Fig. 3, waveguide mouth 2 includes the first bore waveguide ring 3 of socket, the Two bore waveguide rings 4 and third bore waveguide ring 5；The internal diameter of first bore waveguide ring 3 is 52mm ± 0.05mm, the second bore wave The internal diameter of lead ring 4 is 42mm ± 0.05mm, and the internal diameter of third bore waveguide ring 5 is 33.6 ± 0.05mm；First bore waveguide ring 3 Axis depth is 14.75mm, and the axis depth of the second bore waveguide ring 4 is 14.75mm.It is carried out for current different number of rings corrugation loudspeaker feed sources Simulation comparison analysis compares the feed of existing 3 ring and 4 rings, and low frequency is fine, high frequency field pattern and minor lobe characteristic are suitable；Not Performance is better than common 3 ring in the case where increasing cost, and performance is slightly better than 4 rings and more save the cost therefore this implementation than common 4 ring Example is that 3 ring horn feeds are improved.

The KU heavy caliber horn feed of the present embodiment is provided with connector as feed connection, such as Fig. 5.

Conventional horn feed such as Fig. 1, compared to Figure 1, the size of the KU heavy caliber horn feed of the present embodiment in feed ring On increased.Other than bore becomes larger, there are also the depth downs of each feed ring on the basis for not changing offset-fed antenna On, increase feed ring and can be enhanced and receive satellite-signal at offset-fed antenna reflector focus, and with radiance field pattern Matching.

Preferably, the internal diameter of the first bore waveguide ring 3 is 52mm, and the internal diameter of the second bore waveguide ring 4 is 42mm, the The internal diameter of three bore waveguide rings 5 is 33.6mm.

Specifically, the first face of the first bore waveguide ring 3 and the first face axis difference of the second bore waveguide ring 4 are 8.7mm；The first face of first bore waveguide ring 3 and the first face axis difference of third bore waveguide ring 5 are 17.35mm.

Specifically, the degree of eccentricity of the waveguide 1（Verticality）Less than 0.1mm.In processing, 1 diameter of waveguide and each The allowance control of rank depth is best in ± 0.05mm；The allowance control of the total depth of cavity fuse is best in ± 0.1mm.

By emulation testing, such as the test resolution that Fig. 6 is VSWR.If Fig. 7 is far field radiation pattern schematic diagram.It can be bright The aobvious high frequency found out in the present embodiment and the matching of low-frequency range radiance field pattern, otherness reduce, and feed overall performance is mentioned It rises, radiation pattern circularity improves, and zero deep effect is obvious.

Although the illustrative specific embodiment of the utility model is described above, in order to the art Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the range of specific embodiment, to this technology For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in the attached claims In spirit and scope, all are created using the utility model of the utility model design in the column of protection.

Claims (4)

1. a kind of KU heavy caliber horn feed, it is characterised in that：The KU heavy caliber horn feed includes waveguide and is located at The waveguide mouth of waveguide front end；Waveguide mouth includes the first bore waveguide ring, the second bore waveguide ring and the third bore wave of socket Lead ring；The internal diameter of first bore waveguide ring is 52mm ± 0.05mm, and the internal diameter of the second bore waveguide ring is 42mm ± 0.05mm, the The internal diameter of three bore waveguide rings is 33.6 ± 0.05mm；First bore waveguide annulate shaft depth is 14.75mm, the second bore waveguide ring Axis depth is 14.75mm.

2. KU heavy caliber horn feed according to claim 1, it is characterised in that：The internal diameter of the first bore waveguide ring For 52mm, the internal diameter of the second bore waveguide ring is 42mm, and the internal diameter of third bore waveguide ring is 33.6mm.

3. KU heavy caliber horn feed according to claim 1 or 2, it is characterised in that：The first of first bore waveguide ring The first face axis difference of mouth face and the second bore waveguide ring is 8.7mm；The first face of first bore waveguide ring and third bore The first face axis difference of waveguide ring is 17.35mm.

4. KU heavy caliber horn feed according to claim 1 or 2, it is characterised in that：The degree of eccentricity of the waveguide is small In 0.1mm.