CN203205545U

CN203205545U - Yagi aerial

Info

Publication number: CN203205545U
Application number: CN 201320150510
Authority: CN
Inventors: 郭宗平
Original assignee: DONGGUAN POOLE LETTER CITY COMMUNICATIONS EQUIPMENT Co Ltd
Current assignee: DONGGUAN POOLE LETTER CITY COMMUNICATIONS EQUIPMENT Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-09-18
Anticipated expiration: 2023-03-28

Abstract

The utility model discloses a yagi aerial, comprising a square tube and a clamping assembly. The square tube is successively provided with a reflector, an active oscillator and seven directors above the clamping assembly; the reflector and the directors are respectively of a circular tube shape; the seven directors comprise three director sets successively assigned from down to top, wherein a first stage director set comprises two directors with a same length, a second stage director set comprises two directors with a same length and a third stage director set comprises three directors with a same length; the two directors of the first stage director set are longer than the two directors of the second stage director set, and the two directors of the second stage director set are longer than the three directors of the third stage director set. In work, the square tube is fixed to a corresponding supporting structure through the clamping assembly, wherein three sets of director with different lengths can realize long distance signal receiving. Accordingly, the yagi aerial possesses the advantages of novel structure design, reliable quality and long receiving distance.

Description

A kind of Yagi antenna

Technical field

The utility model relates to the antenna assembly technical field, relates in particular to a kind of Yagi antenna.

Background technology

As a kind of antenna assembly of important kind, Yagi antenna is widely used in the daily life, and is wherein, general completely aspect digital TV antenna.Yagi antenna generally is installed on the open air, and the stability of its structure and receiving range become the important indicator of estimating its quality; Yet, existing Yagi antenna ubiquity structural instability, the defective that second-rate and receiving range is near.

The utility model content

The purpose of this utility model is to provide a kind of Yagi antenna for the deficiencies in the prior art, and this Yagi antenna structural design novelty, reliable in quality and receiving range are far away.

For achieving the above object, the utility model is achieved through the following technical solutions.

A kind of Yagi antenna, the clamp assemblies that includes square tube and be installed in the bottom of square tube, square tube is equiped with reflector in the top of clamp assemblies, square tube is equiped with in the top of reflector and the spaced apart active dipole of reflector, active dipole is oval ring-type, square tube is equiped with parallel and spaced apart seven directors in the top of active dipole, reflector and director are cylindrical respectively; Seven directors include phase I director group, second stage director group and the phase III director group of arranging successively from bottom to up, phase I director group includes two isometric directors, second stage director group includes two isometric directors, phase III director group includes three isometric directors, two directors of phase I director group are long than two directors of second stage director group, and two directors of second stage director group are long than three directors of phase III director group.

Wherein, described clamp assemblies includes cutting ferrule in the sawtooth clevis code of described square tube and the U-shaped code that cooperates with sawtooth clevis code, the U-shaped code is provided with two external thread rod sections, two external thread rod sections are positioned at respectively the both sides of square tube, two external thread rod sections of the corresponding U-shaped code of sawtooth clevis code offer respectively spiral shell dress hole, two external thread rod sections are intercalated in respectively in the corresponding spiral shell dress hole, corresponding two the external thread rod sections of sawtooth clevis code are fitted with respectively wing nut, and wing nut is screwed on corresponding external thread rod section.

The beneficial effects of the utility model are: a kind of Yagi antenna described in the utility model, the clamp assemblies that it includes square tube and is installed in the bottom of square tube, square tube is equiped with reflector in the top of clamp assemblies, square tube is equiped with in the top of reflector and the spaced apart active dipole of reflector, active dipole is oval ring-type, square tube is equiped with parallel and spaced apart seven directors in the top of active dipole, reflector and director are cylindrical respectively; Seven directors include phase I director group, second stage director group and the phase III director group of arranging successively from bottom to up, phase I director group includes two isometric directors, second stage director group includes two isometric directors, phase III director group includes three isometric directors, two directors of phase I director group are long than two directors of second stage director group, and two directors of second stage director group are long than three directors of phase III director group.In the utility model course of work, square tube is fixed in corresponding supporting construction by clamp assemblies; Wherein, the director group that differs of three groups of length can realize that distant signal receives.Comprehensive above-mentioned situation the utlity model has structural design novelty, reliable in quality and receiving range advantage far away as can be known.

Description of drawings

The below utilizes accompanying drawing to come the utility model is further detailed, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the local enlarged diagram of the utility model.

Fig. 3 is the structural representation of sawtooth clevis code of the present utility model.

In Fig. 1 to Fig. 3, include:

1---square tube 2---clamp assemblies 21---sawtooth clevis code

211---spiral shell dress hole 22---U-shaped code 221---external thread rod sections

23---wing nut 3---reflector 4---active dipoles

5---director 51---phase I director group

52---second stage director group 53---phase III director group.

Embodiment

As depicted in figs. 1 and 2, a kind of Yagi antenna, the clamp assemblies 2 that includes square tube 1 and be installed in the bottom of square tube 1, square tube 1 is equiped with reflector 3 in the top of clamp assemblies 2, square tube 1 is equiped with in the top of reflector 3 and reflector 3 spaced apart active dipoles 4, active dipole 4 is oval ring-type, and square tube 1 is equiped with parallel and spaced apart seven directors 5 in the top of active dipole 4, and reflector 3 and director 5 are cylindrical respectively; Seven directors 5 include the phase I director group 51 of arranging successively from bottom to up, second stage director group 52 and phase III director group 53, phase I director group 51 includes two isometric directors 5, second stage director group 52 includes two isometric directors 5, phase III director group 53 includes three isometric directors 5, two directors 5 of phase I director group 51 are long than two directors 5 of second stage director group 52, and two directors 5 of second stage director group 52 are long than three directors 5 of phase III director group 53.

Wherein, as shown in Figure 1 to Figure 3, clamp assemblies 2 includes cutting ferrule in the sawtooth clevis code 21 of square tube 1 and the U-shaped code 22 that cooperates with sawtooth clevis code 21, U-shaped code 22 is provided with two external thread rod sections 221, two external thread rod sections 221 lay respectively at the both sides of square tube 1, two external thread rod sections 221 of sawtooth clevis code 21 corresponding U-shaped codes 22 offer respectively spiral shell dress hole 211, two external thread rod sections 221 are intercalated in respectively in the corresponding spiral shell dress hole 211, corresponding two the external thread rod sections 221 of sawtooth clevis code 21 are fitted with respectively wing nut 23, and wing nut 23 is screwed on corresponding external thread rod section 221.

Square tube 1 is being fixedly installed in the process of corresponding supporting construction, is screwing two wing nuts 23, at this moment, U-shaped code 22 is towards sawtooth clevis code 21 side shiftings, and sawtooth clevis code 21 cooperates with U-shaped code 22 and supporting construction is clamped.

Wherein, the both ends of reflector 3 and director 5 are embedded with respectively the circle plug, and the both ends of square tube 1 are embedded with respectively Fang Sai.

Director of the present utility model 5 adopts the special constructions design, and seven directors 5 are divided into 5 groups of the directors that three length differ, i.e. phase I director group 51, second stage director group 52 and phase III director group 53; Director 5 structures of said structure form can realize that distant signal receives.

Comprehensive above-mentioned situation the utlity model has structural design novelty, reliable in quality and receiving range advantage far away as can be known.

Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.

Claims

1. Yagi antenna, it is characterized in that: the clamp assemblies (2) that includes square tube (1) and be installed in the bottom of square tube (1), square tube (1) is equiped with reflector (3) in the top of clamp assemblies (2), square tube (1) is equiped with and the spaced apart active dipole of reflector (3) (4) in the top of reflector (3), active dipole (4) is oval ring-type, square tube (1) is equiped with parallel and spaced apart seven directors (5) in the top of active dipole (4), and reflector (3) and director (5) are cylindrical respectively; Seven directors (5) include the phase I director group (51) of arranging successively from bottom to up, second stage director group (52) and phase III director group (53), phase I director group (51) includes two isometric directors (5), second stage director group (52) includes two isometric directors (5), phase III director group (53) includes three isometric directors (5), two directors (5) of phase I director group (51) are long than two directors (5) of second stage director group (52), and two directors (5) of second stage director group (52) are long than three directors (5) of phase III director group (53).

2. a kind of Yagi antenna according to claim 1, it is characterized in that: described clamp assemblies (2) includes cutting ferrule in the sawtooth clevis code (21) of described square tube (1) and the U-shaped code (22) that cooperates with sawtooth clevis code (21), U-shaped code (22) is provided with two external thread rod sections (221), two external thread rod sections (221) lay respectively at the both sides of square tube (1), two external thread rod sections (221) of the corresponding U-shaped code of sawtooth clevis code (21) (22) offer respectively spiral shell dress hole (211), two external thread rod sections (221) are intercalated in respectively in the corresponding spiral shell dress hole (211), corresponding two the external thread rod sections of sawtooth clevis code (21) (221) are fitted with respectively wing nut (23), and wing nut (23) is screwed on corresponding external thread rod section (221).