CN202259672U

CN202259672U - Complementary directional antenna array of digital television

Info

Publication number: CN202259672U
Application number: CN2011203802542U
Authority: CN
Inventors: 陈仁纯
Original assignee: Fujian Quanzhou Huahong Communication Co Ltd
Current assignee: Fujian Quanzhou Huahong Communication Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-05-30
Anticipated expiration: 2021-09-30

Abstract

The utility model discloses a complementary directional antenna array of a digital television, which comprises a connector, an angle adjusting plate and one or more radiation array(s) arranged on the angle adjusting plate. The radiation array(s) comprise(s) a plurality of planar dipoles, a feedback probe, an antenna cover and a probe separation plate, a short circuit type dipole antenna is connected between the two dipole of each pair, the dipoles comprise a planar part and a short circuit part, and the short circuit parts extend to the angle adjusting plate from the edges of the planar parts to form a short circuit; and an impedance converter is connected between the radiation array(s) and the connector through a coaxial cable. The utility model has the advantages that the product has low standing-wave ratio, high gains, low side lobes, good front-back ratio, low cross polarization and wide frequency band, the gains and radiation on the broadband are stable. Therefore, the product can be widely applied in digital television antennas, digital intercoms, GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), 3G, 2.4G and other frequency bands.

Description

The complementary beam array of DTV

Technical field

The utility model relates to the digital TV antenna art, refers in particular to the complementary beam array of a kind of DTV.

Background technology

Antenna is the indispensable crux property parts of modern society's electronic applications, and can the quality of its performance be directly connected to emission and be brought into play fully with the operating efficiency that receives signal.Along with the continuous development of electronic applications, especially to wide frequency antenna require increasingly high,

At present, the technology of broad-band antenna that can be used for realizing having one-way radiation figure is comparatively multiple, for example: (1) paster antenna, its size is less and have the monodirectional beam width, but is exactly that frequency band is narrower, can't satisfy full frequency band and cover; (2) on unlimited ground level, place dipole antenna; Because the distance of size according to wavelength of ground level is to be determined by frequency; Antenna has gain and beamwidth in the wave band of work; But can change along with the variation of frequency, it is different to be created in horizontal plane beamwidth and vertical beamwidth, and front and back are relatively for poor.Therefore, present most frequency range can't more favourable development owing to the existing defective of antenna in the prior art.

By this, be badly in need of working out a kind of new technical scheme and solve the problems referred to above.

The utility model content

In view of this; The utility model is to the disappearance of prior art existence; Its main purpose provides the complementary beam array of a kind of DTV, and it has, and standing-wave ratio is low, the high and low secondary lobe that gains, front and back are than good, low-cross polarization, bandwidth and on the broadband, have advantages such as stable gain and radiating pattern.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

The complementary beam array of a kind of DTV; Include joint, angle adjustment plate and be arranged at the one or more radiation battle arrays on this angle adjustment plate; This radiation a period of time includes plane dipole, feedback probe, radome and probe separation sheet; Wherein, be connected with the short-circuit type dipole antenna between two of every pair of plane dipole dipoles; Be connected with impedance transformer through coaxial cable between this radiation a period of time and joint.

As a kind of preferred version, said dipole comprises planar section and short circuit part, and this short circuit part extends to angle adjustment plate formation short circuit from the edge of planar section.

As a kind of preferred version, the shape of the planar section of said dipole is rectangle or triangle or polygon or semicircle or T shape.

As a kind of preferred version, said dipole short circuit part forms T shape structure with planar section.

As a kind of preferred version, said feedback probe is positioned in the middle of the short-circuit type dipole antenna, and is parallel to the short circuit part of dipole.

As a kind of preferred version, said coaxial cable is connected to the short circuit part of dipole through a side of angle adjustment plate, and the appearance metal level of this coaxial cable is connected with a side of the short circuit of dipole part.

As a kind of preferred version, be provided with insulating part between the short of said every pair of plane dipole is divided and separate.

As a kind of preferred version, the distance of said adjacent radiation between a period of time is 350mm to 500mm.

As a kind of preferred version, the height in said radiation a period of time is 70mm to 120mm.

As a kind of preferred version, the gap between two dipoles of said every pair of plane dipole is 30mm to 100mm.

The utility model compared with prior art has tangible advantage and beneficial effect; Particularly; Can know by technique scheme; It has that standing-wave ratio is low, the high and low secondary lobe that gains, front and back are than good, low-cross polarization, bandwidth and on the broadband, have advantages such as stable gain and radiating pattern, adaptable across digital TV antenna, numeral to talk, frequency ranges such as GSM, CDMA, 3G, 2.4G.

Be architectural feature and the effect of more clearly setting forth the utility model, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment:

Description of drawings

Fig. 1 is the front view of the preferred embodiment of the utility model;

Fig. 2 is the vertical view of the preferred embodiment of the utility model;

Fig. 3 a～Fig. 3 d is the multiple structural representation of dipole planar section in the preferred embodiment of the utility model;

Fig. 4 a～Fig. 4 f is that dipole planar section and short are divided the multiple structural representation that forms in the preferred embodiment of the utility model;

Fig. 5 a～Fig. 5 b is the angle sketch map of dipole planar section and short circuit part in the preferred embodiment of the utility model;

Fig. 6 a～Fig. 6 c is the multiple structural representation of feedback probe in the preferred embodiment of the utility model;

Fig. 7 a～Fig. 6 f is the multiple feeding classification sketch map of feedback probe in the preferred embodiment of the utility model.

The accompanying drawing identifier declaration:

10, joint 20, angle adjustment plate

30, radiation battle array 31, plane dipole

311, dipole 3111, planar section

3112, short circuit part 32, feedback probe

33, probe separation sheet 40, coaxial cable

50, impedance transformer

Embodiment

Please referring to figs. 1 through shown in Fig. 7 f, it has demonstrated the concrete structure of the preferred embodiment of the utility model.At first; See also Fig. 1 to shown in Figure 2; It includes joint 10, angle adjustment plate 20 and is arranged at the one or more radiation a period of time 30 (designing 1～20 usually) on this angle adjustment plate 20; This radiation a period of time 30 includes plane dipole 31, feedback probe 32, radome and probe separation sheet 33, wherein, is connected with the short-circuit type dipole antenna between two dipoles 311 of every pair of plane dipole 31; Gap between these two dipoles 311 is 30mm to 100mm; This dipole 311 comprises planar section 3111 and short circuit part 3112, and this short circuit part 3112 extends to angle adjustment plate 20 formation short circuits from the edge of planar section 3111, and this dipole short circuit part 3112 forms T shape structures with planar section 3111; Aforementioned feedback probe 32 is positioned in the middle of the short-circuit type dipole antenna, and is parallel to the short circuit part 3112 of dipole 311; 10 of this radiation a period of time 30 and joints are connected with impedance transformer 50 through coaxial cable 40; And this coaxial cable 40 is connected to short circuit 3112 parts of dipole 311 through a side of angle adjustment plate 20, and the appearance metal level of this coaxial cable 40 is connected with a side of the short circuit part 3112 of dipole 311.

Need to prove that the shape of the planar section 3111 of aforementioned dipole 311 is rectangle or triangle or polygon or (shown in Fig. 3 a～Fig. 3 d) such as semicircle or T shapes.

Aforementioned dipole planar section 3111 can form multiple structure (shown in Fig. 4 a～Fig. 4 f) with short circuit part 3112, and this dipole planar section 3111 designs (shown in Fig. 5 a～Fig. 5 b) at an angle with short circuit part 3112; Be provided with insulating part between the short circuit part 3112 of every pair of plane dipole 31 and separate, it can reduce the spacing of dipole planar section 3111 to angle angle modulation plate 20, can increase the fastness of antenna again.

In the present embodiment, have four radiation a period of time 30, the height in each radiation a period of time 30 is 70mm to 120mm, and the distance between per two adjacent radiation a period of time 30 is 350mm to 500mm.

In addition, aforementioned feedback probe 32 can be designed as different shape (shown in Fig. 6 a～Fig. 6 c), and its feeding classification also has multiple (shown in Fig. 7 a～Fig. 7 f).

The design focal point of the utility model is; Main system is through the design of each member; Make that the product of the utility model has that standing-wave ratio is low, the high and low secondary lobe that gains, front and back are than good, low-cross polarization, bandwidth and on the broadband, have advantages such as stable gain and radiating pattern, adaptable across digital TV antenna, numeral to talk, frequency ranges such as GSM, CDMA, 3G, 2.4G.

The above; It only is the preferred embodiment of the utility model; Be not that the technical scope of the utility model is done any restriction; So every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme trickle modification, equivalent variations and modification that above embodiment did.

Claims

1. the complementary beam array of a DTV; It is characterized in that: include joint, angle adjustment plate and be arranged at the one or more radiation battle arrays on this angle adjustment plate; This radiation a period of time includes plane dipole, feedback probe, radome and probe separation sheet; Wherein, be connected with the short-circuit type dipole antenna between two of every pair of plane dipole dipoles; Be connected with impedance transformer through coaxial cable between this radiation a period of time and joint.

2. the complementary beam array of DTV according to claim 1, it is characterized in that: said dipole comprises planar section and short circuit part, this short circuit part extends to angle adjustment plate formation short circuit from the edge of planar section.

3. the complementary beam array of DTV according to claim 2, it is characterized in that: the shape of the planar section of said dipole is rectangle or triangle or polygon or semicircle or T shape.

4. the complementary beam array of DTV according to claim 2 is characterized in that: said dipole short circuit part forms T shape structure with planar section.

5. the complementary beam array of DTV according to claim 2, it is characterized in that: said feedback probe is positioned in the middle of the short-circuit type dipole antenna, and is parallel to the short circuit part of dipole.

6. the complementary beam array of DTV according to claim 2; It is characterized in that: said coaxial cable is connected to the short circuit part of dipole through a side of angle adjustment plate, and the appearance metal level of this coaxial cable is connected with a side of the short circuit of dipole part.

7. the complementary beam array of DTV according to claim 2 is characterized in that: be provided with insulating part between the short of said every pair of plane dipole is divided and separate.

8. the complementary beam array of DTV according to claim 1, it is characterized in that: the distance of said adjacent radiation between a period of time is 350mm to 500mm.

9. the complementary beam array of DTV according to claim 1, it is characterized in that: the height in said radiation a period of time is 70mm to 120mm.

10. the complementary beam array of DTV according to claim 1, it is characterized in that: the gap between two dipoles of said every pair of plane dipole is 30mm to 100mm.