CN201004482Y - 360 degree omnidirectional full channel remote TV receiving antenna - Google Patents

Abstract

The utility model relates to 360-degree overall frequency channel remote television receiving aerial, which is designed to be a ring-shaped feeding vibration generator with a wide metal sheet or a metal band; wherein a feeding point and an electronic circuit for the aerial as well as an element and a 75-ohm feeding line and a feeding line socket are to be electrically connected in turn for putting a horizontal rack on the outdoor roof. As the ring-shaped feeding vibration generator is made of wide metal sheets to enlarge the diameter of the active vibration conductor, the receiving area of the aerial is expanded and the working frequency band range is broadened, and the aerial can have wide impedance frequency band and high gain coefficient, so as to increase the received television program channels with intelligent and steady images. In addition, the utility model has the characteristics of small volume and reasonable structure. Within the region that can be covered by the electromagnetic wave, a plurality of television program signals from VL to VHF frequency range and the UHF frequency range hundreds of lis away can be totally received.

Description

360 ° of comprehensive all-channel remote tv reception antennas

Technical field the utility model relates to a kind of 360 ° of comprehensive all-channel remote tv reception antennas, and it is applicable to the TV programme frequency signal that receives VL～VHF VHF band and UHF super high band.

Background technology is present, known loop aerial has electric little ring or TV university loop antenna, and general common have this machine of UHF super high band circular loop antenna, dicyclo or Fourth Ring and six rings add the directional receiving antenna of reflector, these antenna only receives on perpendicular to the direction of anchor ring the strongest, therefore all need anchor ring is set up placement towards TV station's direction, so these antenna mostly is a unidirectional, do not have 360 ° of comprehensive and all-channel receives simultaneously performances.Therefore, few people's use now.

The summary of the invention the purpose of this utility model provides a kind of 360 ° of comprehensive all-channel remote tv reception antennas, it is designed to the annular feed oscillator of horizontal positioned with wide sheet metal, the placing flat of can supplying water is set up in outdoor application, need not rotate the direction of this antenna, just can receive simultaneously from 360 ° of comprehensive VL～VHF and the remote tens cover TV programme signal of uhf band all-channel.

The purpose of this utility model is to realize like this, 360 ° of comprehensive all-channel remote tv reception antennas, the annular feed oscillator of horizontal positioned is adopted in its active dipole design, that is: a sheet metal (or metal tape) such as book aluminium sheet etc., be cut into certain length and width, the shape that coiled is certain is as circular, square (rectangle), triangle and rhombus etc., with the two-end-point of the conductor structure as feed end.Aim at the designed insulation joint box of this antenna in the feed end fixed installation, connection one vertical rod plays a supportive role on the insulation joint box.Distributing point in the insulation joint box connects the input of broadband impedance matching box, and the output of this adaptation is electrically connected in proper order with 75 Europe coaxial-cable feeder and feeder line plug.75 Europe coaxial cables are to introduce from the entrance hole of insulation joint box to penetrate.Fixing point and wiring point that 75 Europe cable feeder lines are arranged in the insulation joint box.Need vertically tie watchman's wooden clapper to the vertical rod of antenna on outdoor rod or bamboo bar during use, annular feed oscillator level is set up placement, the plug of cable feeder line is inserted in the antenna jack of television set, allow television set search for a television frequency signal automatically, like this, in the zone that electromagnetic wave can cover, can receive from 360 ° of comprehensive circumference hundreds of li VL～VHF far away and tens cover TV programme frequency signals of uhf band.

The utility model advantage: owing to adopt above-mentioned design, make of wide sheet metal and to circularize the feed oscillator, be equivalent to strengthen the diameter of active dipole conductor, the working band scope that improved the receiving area of this antenna and broadening effectively make this antenna have the impedance frequency bandwidth characteristics of broad and certain gain coefficient, thereby the programme channel quantity that television set is received increases to some extent, and clear picture, stable, also have little, rational in infrastructure, the comparatively firm characteristics of volume.

Description of drawings Fig. 1 is basic structure and the shape schematic diagram of 360 ° of comprehensive first embodiment of all-channel remote tv reception antenna of the utility model.

Fig. 2 is the basic structure schematic diagram of second embodiment of 360 ° of orientation all-channel remote tv reception antennas.

Fig. 3 is the basic structure schematic diagram of the 3rd embodiment of 360 ° of comprehensive all-channel remote tv reception antennas.

Among the figure: 1, annular feed oscillator; 2, insulation joint box; 3, entrance hole; 4,75 Europe feeder lines; 5, feeder line plug; 6, vertical rod; 7, insulation bracing frame; 8, insulation joint box; 9, screw fixing hole.AA ' locates to be distributing point, and it is the tie point that loading resistor or inductance element are installed that BB ' locates.

360 ° of comprehensive all-channel remote tv reception antennas of embodiment, in the embodiment shown in fig. 1, annular feed oscillator (1), with width is about 80mm, thickness is that book sheet metal about 0.3mm or metal tape (can certainly with conductors such as metal tube) be made into two semicircular ring, the geometric average centre wavelength design of the television channel that the length of these two semicircular ring receives according to desire.The feed end of two semicircular ring is fixed on the insulation joint box (2) with two metal wiring films of screw connection.At insulation joint box (2) fixing point (not drawing among the figure) of 75 Europe feeder lines (4) is arranged, an end of 75 Europe feeder lines (4) is introduced penetrated in the entrance hole (3), 75 Europe feeder lines (4) are installed firmly at its fixing point.The input of broadband impedance matching box is connected with two metal wiring films that distributing point AA ' locates respectively, the output of adaptation is connected respectively with outer conductor (netting twine), the inner wire (heart yearn) of 75 Europe feeder lines (4).Feeder line plug of terminal connection (5) at 75 Europe feeder lines (4).The BB ' of annular feed oscillator (1) is located to be installed on the insulation joint box (8), with screw pacify into tighten in the screw fixing hole (9) fixing solid.When locating at BB ', separated mid point seals in the resistance (not drawing among the figure) of suitable numerical value, the input impedance that can not only improve antenna in the promptly annular feed oscillator (1), be convenient to mate with 75 Europe feeder lines (4), and broadband character is preferably arranged, can overcharge platform, and clear image.When locate to connect a kind of designed inductance coil of this antenna (not drawing among the figure) that aims at BB ', can significantly increase the working band width of this antenna like this, make reception better.Insulation bracing frame (7) is installed in the inside of annular feed oscillator (1), it is fixed into one by the sheet metal assembling of screw and annular feed oscillator (1), insulation bracing frame (7) is assembled together with vertical rod (6), can make like this this antenna to set up installation comparatively convenient.Vertical rod (6) can be selected plastic tube or the metal tube of diameter 20mm for use, and its length is about about 50cm.

360 ° of comprehensive all-channel remote tv reception antennas, in embodiment illustrated in fig. 2, the feed end of the annular feed oscillator (1) that the mid point made from sheet metal is not disconnected is fixed on the insulation joint box (2), locates identical with broadband impedance matching box, 75 Europe feeder lines (4), mode that feeder line plug (5) order is electrically connected and embodiment shown in Figure 1 at distributing point AA '.Insulation bracing frame (7), vertical rod (6) assembled with annular feed oscillator (1) be integral.This annular feed oscillator (1) is though be designed to a complete circular rings in the drawings, but the volume of considering it can be put in the less packing case, when manufacturing annular feed oscillator (1), should be cut into several joints to sheet metal (or other conductor) respectively, between every joint, need the local auger shell silk fixing hole (not drawing among the figure) that connects, with the structure of the complete annular feed oscillator (1) of a few joint metallic conductors assemblings becoming of key screw.Can effectively dwindle the volume of packing case like this.In addition, because adopting thickness is than the sheet metal or the strip material of book about 0.3mm, for strengthening the mechanical strength of this antenna, the rolling shape is processed into along its edge in the both sides up and down of sheet metal, on the sheet metal of manufacturing annular feed oscillator (1), roll several roads ditch with a kind of groove machine, promptly be processed into high of both sides, a few road, the centre is recessed, each other the strip groove (not drawing among the figure) of parallel interval certain distance.

360 ° of comprehensive all-channel remote tv reception antennas, in the embodiment shown in fig. 3, the feed end of annular feed oscillator (1) is installed on the insulation joint box (2), goes up at insulation joint box (2) connection vertical rod (6) directly is installed, can make structure simpler like this.75 Europe feeder lines (4) are penetrated in the insulation joint box (2) from entrance hole (3), locate to be electrically connected with a kind of electronic circuit of special use and element (not drawing among the figure), 75 Europe feeder lines (4), feeder line plug (5) order at its distributing point AA '.In order to alleviate the wind lotus of antenna well, on the sheet metal of annular feed oscillator (1), can bore the aperture of a little ventilations, also available net metal material annular feed oscillator (1).

360 ° of comprehensive all-channel remote tv reception antennas, be that the sheet metal of manufacturing annular feed oscillators such as square (or rectangle), triangle and rhombus is converted into the right angle, be cut into several joints, conductors such as a few joint angled metal sheets, by certain perimeter length, dress up structure (not drawing among the figure) with screw or stack of rivets, feeding classification and installation, set up with reference to the utility model first or second embodiment for complete annular feed oscillator (1).Above-mentioned two identical annular feed oscillators (1) at a certain distance between the upper and lower, towards unanimity, be installed in the same vertical rod (6), parallelly feeding promptly becomes the vertical antenna battle array, and receiving range can be farther, receives platform more (not drawing among the figure).Described 360 ° of comprehensive all-channel remote tv reception antennas are when setting up, and its height should surpass trees or the about 2～3m in roof, avoid blocking of building.Should adjust a lower angle a little, when reception is satisfied, again antenna vertical rod (6) fix tightly.When thundery sky, feeder line plug (5) should be pulled up from television set and be put into outdoor going, with anti-lightning strike.

Claims (3)

1,360 ° of comprehensive all-channel remote tv reception antennas, metallic conductor is done circular, square, triangle and rhombus etc., with the two-end-point of conductor structure as feed end, distributing point is electrically connected in proper order with broadband impedance matching box, 75 Europe feeder lines, feeder line plug, it is characterized in that: the feed end at annular feed oscillator (1) installs and fixes insulation joint box (2), insulation joint box (2) and vertical rod (6) connection together, the metal wiring film that in insulation joint box (2), has connection distributing point (AA ') to locate.

2,360 ° of comprehensive all-channel remote tv reception antennas according to claim 1 is characterized in that: (BB ') that annular feed oscillator (1) mid point is disconnected locates, and is fixed on the insulation joint box (8).

3,360 ° of comprehensive all-channel remote tv reception antennas according to claim 1 is characterized in that: install and fix insulation bracing frame (7) in the inside of annular feed oscillator (1), insulation bracing frame (7) is connected and fixed with vertical rod (6).

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