CN208923368U - A kind of small-sized interferometer direction-finder antenna group - Google Patents

Abstract

The utility model discloses a kind of small-sized interferometer direction-finder antenna groups, it is characterized by comprising antenna array, firm banking, coaxially connected part and shells, a plurality of axis coupling holes and a plurality of fixedly connected holes are provided on the firm banking, described antenna array one end is set in the axis coupling hole to be connected with the coaxially connected portion split-phase, the jacket is set on the firm banking, and antenna sets work in 6250~6750MHz frequency range.The interferometer direction finding antenna sets use short baseline operating mode, can effectively reduce the bulk of system, according to the needs of practical application, direction finding distance does not need overlength distance, therefore antenna sets working frequency range uses 6250~6750MHz of high band frequency range, wide in this band bandwidth, wave interference is few.

Description

A kind of small-sized interferometer direction-finder antenna group

Technical field

The utility model relates to wireless communication field more particularly to a kind of small-sized interferometer direction-finder antenna groups.

Background technique

Antenna is a kind of converter, and the guided wave propagated on transmission line is transformed into the electricity propagated in unbounded medium by it Magnetic wave, or opposite transformation is carried out, most important effect is played in wireless communication field.Antenna can not only transmit number According to, while can also be used to realize high precision wireless positioning, ranging, to realize that intelligence follows, expand much answering for people With so that life is more intelligent, more convenient.

Intelligently follow function by antenna, the multiple applications of Internet of Things can be made to realize and landing, as balance car intelligence with With, intelligent traveller's case, intelligent shopping trolley etc..And to realize that the intelligence of product follows function, it is necessary to use interferometer antenna group. Arrival bearing is measured by interferometer antenna group, while increasing time synchronizing signal in radio wave to realize that distance is surveyed It is fixed, it is accurately positioned so as to realize, while by the setting of software control signals to reach the function of following automatically.

The principle of interferometer test is according to electric wave in traveling, and the electric wave come from different directions reaches direction-finder antenna group When, spatially the received phase of each direction-finder antenna unit is different, thus mutual phase difference is also different, by measuring incoming wave Phase and phase difference, that is, can determine arrival bearing.

Currently used is mostly the direction finding of testing large target detection, and interferometer size is bigger, and precision is relatively low.

Summary of the invention

The utility model aim is to provide a kind of interferometer direction finding antenna sets, which is at short Baseline operating mode, and antenna array matches mutually corrected two-by-two, it can be ensured that antenna direction finding precision, product with compact structure, Size is small, and precision is high, at low cost.

In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of small-sized interferometer direction-finder antenna group, packet Antenna array, firm banking, coaxially connected part and shell are included, a plurality of axis coupling holes are provided on the firm banking and is answered Several fixedly connected holes, described antenna array one end is set in the axis coupling hole to be connected with the coaxially connected portion split-phase, institute Jacket is stated on the firm banking, antenna sets work in 6250~6750MHz frequency range.

In above-mentioned technical proposal, the antenna array includes the dipole antenna of three vertical polarizations, the dipole antenna Be distributed in equilateral triangle, two-by-two between distance be 0.45 λ~0.5 λ, λ be operation wavelength, so that antenna sets is in short baseline Working mould Formula.

In above-mentioned technical proposal, the dipole antenna includes core wire and copper pipe, is provided with insulating layer on the outside of the core wire, The core wire is set in the copper pipe, and one end exposes to outside the copper pipe, and exposed parts length is 1/4 λ, the other end and institute State coaxially connected portion split-phase company.

In above-mentioned technical proposal, the copper pipe includes outer copper pipe and interior copper pipe, and the outer copper pipe and the interior copper pipe are integrated Molding, the outer copper pipe are an arm of dipole antenna, and the interior copper pipe is the outer conductor of coaxial line.

In above-mentioned technical proposal, the firm banking is circular metal structure, is on the fixed base in equilateral triangle There are three axis coupling hole, described dipole antenna one end to be set in the axis coupling hole for setting, the axis coupling hole Outer ring and the axis coupling hole are arranged at intervals with three fixedly connected holes, and the fixedly connected hole is arranged in equilateral triangle, The axis coupling hole outer ring and the fixedly connected hole, which offset, is provided with waterproof washer.

In above-mentioned technical proposal, at the corresponding waterproof washer and the fixedly connected hole, it is arranged in the outer casing bottom There are capillary groove and screw hole, by fixed screw by the firm banking and the cage connection.

In above-mentioned technical proposal, the coaxially connected portion is divided into sub-miniature A connector, MCX connector or other kinds of coaxial fitting.

In above-mentioned technical proposal, the shell sizes≤φ 48*72mm.

Due to the above technical solutions, the present invention has the following advantages over the prior art:

1. antenna array includes the dipole antenna of three vertical polarizations in the utility model, the dipole antenna is in positive three Angular distribution, two-by-two between distance be 0.45 λ~0.5 λ, λ be operation wavelength, so that antenna sets is at short baseline operating mode Under, this can effectively reduce the bulk of system, and according to the needs of practical application, direction finding distance is not required to overlength distance, therefore Antenna sets working frequency range uses 6250~6750MHz of high band frequency range, and wide in this band bandwidth, wave interference is few.

2. the copper pipe includes outer copper pipe and interior copper pipe, the outer copper pipe and the interior copper pipe are integrally formed, the outer copper An arm of the pipe as dipole antenna, outer conductor of the interior copper pipe as coaxial line, while supporting function is played to antenna.

3. offseting in the axis coupling hole outer ring and the fixedly connected hole is provided with waterproof washer, the corresponding waterproof Washer is provided with capillary groove in the outer casing bottom, by the design of the waterproof washer, realizes shell waterproof.

4. the shell sizes≤φ 48*72mm, guarantee the miniaturization of product.

Detailed description of the invention

Fig. 1 is product overall schematic in the utility model；

Fig. 2 is interiors of products schematic diagram in the utility model；

Fig. 3 is product perspective view of the explosion in the utility model；

Fig. 4 is shell schematic diagram in the utility model.

Wherein: 1, firm banking；2, coaxially connected part；3, shell；4, dipole antenna；5, insulating layer；6, outer copper pipe； 7, interior copper pipe；8, axis coupling hole；9, fixedly connected hole；10, waterproof washer；11, capillary groove；12, screw hole；13, fixed spiral shell Silk.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments:

Embodiment one: referring to shown in Fig. 1~4, a kind of small-sized interferometer direction-finder antenna group, including antenna array, firm banking 1, coaxially connected part 2 and shell 3 are provided with a plurality of axis coupling holes 8 on the firm banking 1 and a plurality of are fixedly connected Hole 9, described antenna array one end is set in the axis coupling hole 8 to be connected with the coaxially connected part 2, and the shell 3 covers On the firm banking 1, antenna sets work in 6250~6750MHz frequency range, and wide in this band bandwidth, wave interference is few.

Referring to shown in Fig. 1~3, the antenna array includes the dipole antenna 4 of three vertical polarizations, the dipole antenna 4 in equilateral triangle be distributed, two-by-two between distance be 0.45 λ~0.5 λ, λ be operation wavelength, make antenna sets be in short baseline work Mode.

Shown in Figure 3, the dipole antenna 4 includes core wire and copper pipe, is provided with insulating layer 5 on the outside of the core wire, The core wire is set in the copper pipe, and one end exposes to outside the copper pipe, and exposed parts length is 1/4 λ, the other end and institute Coaxially connected part 2 is stated to be connected.

Shown in Figure 3, the copper pipe includes outer copper pipe 6 and interior copper pipe 7,7 one of the outer copper pipe 6 and the interior copper pipe Molding, the outer copper pipe 6 are an arm of dipole antenna 4, and the interior copper pipe 7 is the outer conductor of coaxial line, while to antenna Play supporting function.

Shown in referring to fig. 2~3, the firm banking 1 is circular metal structure, is in positive triangle on the firm banking 1 There are three axis coupling holes 8 for shape setting, and described 4 one end of dipole antenna is set in the axis coupling hole 8, described coaxially to connect It connects 8 outer ring of hole and the axis coupling hole 8 is arranged at intervals with three fixedly connected holes 9, the fixedly connected hole 9 is in equilateral triangle Setting offsets in 8 outer ring of axis coupling hole and the fixedly connected hole 9 and is provided with waterproof washer 10.

It is shown in Figure 4, at the corresponding waterproof washer 10 and the fixedly connected hole 9, it is arranged in 3 bottom of shell There are capillary groove 11 and screw hole 12, is connect the firm banking 1 with the shell 3 by fixed screw 13.

Referring to shown in Fig. 1~3, the coaxially connected part 2 is sub-miniature A connector, MCX connector or other kinds of coaxially connects Head.

Referring to shown in Fig. 1~4,3 sizes of shell≤φ 48*72mm, when product tend to miniaturization.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims (8)

1. a kind of small-sized interferometer direction-finder antenna group, it is characterised in that: including antenna array, firm banking, coaxially connected part with Shell is provided with a plurality of axis coupling holes and a plurality of fixedly connected holes on the firm banking, and described antenna array one end is set It is placed in the axis coupling hole and connects with the coaxially connected portion split-phase, the jacket is set on the firm banking, antenna Group work is in 6250~6750MHz frequency range.

2. small-sized interferometer direction-finder antenna group according to claim 1, it is characterised in that: the antenna array includes three and hangs down Straight polarized dipole antenna, the dipole antenna are distributed in equilateral triangle, two-by-two between distance for 0.45 λ~0.5 λ, λ be Operation wavelength makes antenna sets be in short baseline operating mode.

3. small-sized interferometer direction-finder antenna group according to claim 2, it is characterised in that: the dipole antenna includes core Line and copper pipe, the core wire outside are provided with insulating layer, and the core wire is set in the copper pipe, and one end exposes to the copper Pipe is outer, and exposed parts length is 1/4 λ, and the other end and the coaxially connected portion split-phase connect.

4. small-sized interferometer direction-finder antenna group according to claim 3, it is characterised in that: the copper pipe include outer copper pipe with Interior copper pipe, the outer copper pipe and the interior copper pipe are integrally formed, and the outer copper pipe is an arm of dipole antenna, the interior copper Pipe is the outer conductor of coaxial line.

5. small-sized interferometer direction-finder antenna group according to claim 2, it is characterised in that: the firm banking is round gold Belong to structure, there are three axis coupling hole, dipole antenna one end settings in equilateral triangle setting on the fixed base In in the axis coupling hole, the axis coupling hole outer ring is arranged at intervals with three with the axis coupling hole and is fixedly connected Hole, the fixedly connected hole are arranged in equilateral triangle, and offset in the axis coupling hole outer ring with the fixedly connected hole setting There is waterproof washer.

6. small-sized interferometer direction-finder antenna group according to claim 5, it is characterised in that: the corresponding waterproof washer and institute It states at fixedly connected hole, the outer casing bottom is provided with capillary groove and screw hole, by fixed screw by the firm banking With the cage connection.

7. small-sized interferometer direction-finder antenna group according to claim 1, it is characterised in that: the coaxially connected portion is divided into Sub-miniature A connector, MCX connector.

8. small-sized interferometer direction-finder antenna group according to claim 1, it is characterised in that: the shell sizes≤φ 48* 72mm。