CN2166528Y

CN2166528Y - V-U outdoor common antenna for household television

Info

Publication number: CN2166528Y
Application number: CN 92245599
Authority: CN
Inventors: 李建刚; 邓凤昌; 李海洋; 李俊
Original assignee: 李建刚
Priority date: 1992-12-09
Filing date: 1992-12-09
Publication date: 1994-05-25
Anticipated expiration: 2002-12-09

Abstract

The utility model relates to a V-U outdoor common antenna for household televisions. The utility model is characterized in that a director for the UHF frequency band, a reflector for the UHF frequency band, a director for the VHF frequency band and a reflector for the VHF frequency band are respectively at a certain interval arranged on the upper plane and the lower plane of the same antenna bar, two active dipoles of the UHF frequency band and the VHF frequency band are arranged on the upper plane and the lower plane of the same plastic connecting box, the active dipoles of the UFH frequency band and the VHF frequency band are respectively mutually parallel to the director and the reflector of the corresponding frequency band, and the frequency signals of the television programs from 1-56 channels of different frequency bands are transmitted to a television receiver with one feeder line through a V-U signal mixing circuit.

Description

V-U outdoor common antenna for household television

The utility model relates to a kind of family expenses colour TV or the shared outdoor receiving antenna device of all-channel of black and white television set VHF-UHF frequency range.

At present a lot of used outdoor reception antennas of domestic television set because frequency band is narrower, are applicable to that the television frequency scope of reception is restricted.Particularly the high-gain of antenna and all-channel the two be difficult to take into account simultaneously, some all-channel reception antenna is to have sacrificed the gain of antenna and bring wide band.And along with the developing rapidly of China's television, vast television antenna user more and more needs a kind of outdoor master antenna of VHF-UHF frequency range with high-gain and all-channel performance.

The purpose of this utility model is exactly Zong will provide the outdoor master antenna device of three kinds of VHF-UHF that belongs to a design, design invention for domestic television set.It can be applicable to the TV programme frequency signal that receives the VHF-UHF1-56 channel.

The purpose of this utility model is achieved in that it is director, the reflector of respectively uhf band being used, the director that the VHF frequency range is used, reflector, be installed in according to certain spacing arrangement on upper and lower two planes of upper and lower two line cross bars of same aerial yard, saved the branch feeder line, simple and compact for structure, new reasonable, volume is less, has reduced cost, set up use very convenient.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.Fig. 1, Fig. 2, Fig. 3 are the upward views according to the outdoor common antenna device of domestic television set V-U that the utility model proposes.

Respectively in conjunction with Fig. 1, Fig. 2, Fig. 3, describe details and working condition in detail below according to the concrete device that the utility model proposes.

This device comprises that a VHF frequency range length is the active folded dipole (1) that has two short circuit metal sheets of 1-12 channel geometric average half-wavelength in Fig. 1, a length is a bit larger tham the VHF frequency range reflector (2) of geometric average half-wave length, three VHF frequency range directors (3) that length is 57-60cm, a length is the active folded dipole of uhf band (4) of 13-57 channel geometric average half-wavelength, the uhf band reflector (5) that length is 33cm, seven length are the uhf band director (6) of 16cm, a plastic junction box (7), an aerial yard (8), a U-iron holder (9).All active dipoles, director, reflector diameter are the aluminum pipe of 1-2cm and make.About aerial yard (8) diameter 2cm, long 1.1m, can be metal tube, also can be the ABS plastic pipe.

On active folded dipole (1), add two short-circuit pieces, like this it can be operated in all-wave long on, its distributing point is fixed in the following plane of plastic junction box (7), this folded dipole (1) straight placement.The distributing point of the active folded dipole of uhf band (4) is fixed in the plane of plastic junction box (7) top the parallel placement of folded dipole (4).Aerial yard (8) is set level, the one end near the about 2cm of end points place straight hole that diameter is 4mm of brill, VHF frequency range reflector (2) is fixed on screw and plastic clip gripping member in this hole on the plane of aerial yard (8) bottom.Keep at a certain distance away with reflector (2) and to bore second hole, with screw and plastic clip gripping member uhf band reflector (5) is fixed on the plane of aerial yard (8) top in this hole.Keep at a certain distance away with reflector (5) and to bore the 3rd hole, with screw plastic junction box (7) is fixed on the plane of aerial yard (8) top in this hole.Keep at a certain distance away with terminal box (7) and to bore the 4th hole, with screw and plastic clip gripping member first uhf band director (6) is fixed on the plane of aerial yard (8) top in this hole.Keep at a certain distance away with first reflector (6) and to bore the 5th hole, with screw and plastic clip gripping member first director of VHF frequency range (3) is fixed on the following plane of aerial yard (8) in this hole, keep at a certain distance away with first director of VHF frequency range (3) and to bore the 6th hole, with screw and plastic clip gripping member second director of uhf band (6) is fixed on the plane of aerial yard (8) top in this hole.Keep at a certain distance away with second director of uhf band (6), go up and above-mentioned vertical brill the 7th, the 8 two hole of 3.5cm apart at aerial yard (8), U-iron holder (9) is installed in these two holes, two nuts of screwing on, U-iron holder (9) is used for antenna is fixed on the support bar.Go up at aerial yard (8) with the 8th span certain distance and straight to bore the 9th hole, with screw and plastic clip gripping member the 3rd director of uhf band (6) is fixed on the plane of aerial yard (8) top in this hole.Bore the tenth hole with the 9th span certain distance, with screw and plastic clip gripping member the 4th director of uhf band is fixed on the following plane of aerial yard (8) in this hole.Bore the 11 hole with the tenth span certain distance, with screw and plastic clip gripping member second director of VHF frequency range is fixed on the following plane of aerial yard (8) in this hole.Bore the 12 hole with the 11 span certain distance, with screw and plastic clip gripping member the 5th director of uhf band (6) is fixed on the plane of aerial yard (8) top in this hole.Bore the 13 hole with the 12 span certain distance, with screw and plastic clip gripping member the 6th director of uhf band (6) is fixed on the plane of aerial yard (8) top in this hole.Bore the 14 hole with the 13 span certain distance, with screw and plastic clip gripping member the 3rd director of VHF frequency range (3) is fixed on the following plane of aerial yard (8) in this hole.Last and the 14 hole keeps at a certain distance away on plane, close this end points about 2cm place of the aerial yard other end again, also UHF, the active dipole of VHF frequency range be fixedly mounted on respectively same plastic junction box on, in following two planes, this terminal box is installed on the cross bar between fixing VHF and uhf band reflector and the director, make the active dipole of VHF and uhf band be parallel to each other to the director of frequency range separately respectively, reflector, the distributing point of two active dipoles is installed a VHF-UHF signal mixed circuit in plastic junction box, television frequency signal from different frequency range only is transferred to television receiver with a feeder line, makes it to become the outdoor common antenna of V-U.

The utility model is because the director of respectively uhf band being used, reflector, the director that the VHF frequency range is used, reflector, according to certain spacing arrangement be fixed on same aerial yard on, on following two planes, also UHF, the active dipole of VHF frequency range be fixedly mounted on same plastic junction box on, in following two planes, make the active dipole of VHF and uhf band be parallel to each other to the director of frequency range separately respectively, reflector, and from the television frequency signal of different frequency range by being installed in the VHF-UHF signal mixer in the plastic junction box, only be transferred to television receiver with a feeder line, so this antenna can not only receive the TV programme signal of 1-12 channel, the TV programme signal that can receive tens channels of uhf band again particularly also has sufficiently high gain coefficient under the prerequisite of the working band that keeps non-constant width.Creatively the antenna of UHF and two frequency ranges of VHF is fixed on same sky respectively and bores the 15 hole, with screw and plastic clip gripping member the 7th director of uhf band (6) is fixed on the plane of aerial yard (8) top in this hole.The distributing point of two active dipoles (1), (4) in plastic junction box (7) by a UHF-VHF frequency band signals hybrid circuit, only is transferred to television receiver to the TV signal from two different frequency ranges with a feeder line.During antenna installation, make director towards TV station's direction.

This device comprises that a VHF frequency range has the active folded dipole (1) of short-circuit piece in Fig. 2, a VHF frequency range reflector (2), three directors of VHF frequency range (3), a basic half-wave dipole of uhf band (4), a uhf band reflector (5), eight uhf band directors (6), a plastic junction box (7), an aerial yard (8), a U-iron holder (9).

The length of active folded dipole (1), structure are identical with active dipole (1) among Fig. 1.The distributing point of folded dipole (1) is fixed in the following plane of plastic junction box (7), and folded dipole is straight the placement.

The distributing point of basic half-wave dipole (4) two arms of uhf band is installed in the plane of plastic junction box (7) top, in parallel with the right the distributing point of folded dipole (1) with the distributing point left side of basic half-wave dipole (4) and the left side, the right, aft antenna input impedance in parallel is about 300 Europe, by Europe, 300 Europe-75 impedance transformation adaptation, use one 75 Europe coaxial cable to make feeder line.Uhf band director (6), reflector (5), VHF frequency range director (3), reflector (2) are installed in upper and lower two planes of same aerial yard (8) respectively according to certain spacing arrangement, terminal box (7) is installed on the cross bar (8) between fixing VHF and uhf band reflector (2), (5) and VHF, uhf band first director (6), (3), makes 2# conductor, (4) of the active dipole (1) of VHF, uhf band be parallel to each other to the director of frequency range (3), (6) and reflector (2), (5) separately respectively.Wherein, the electrical length data of each reflector, active dipole, director and the device among assembly relation, using method and Fig. 1 are basic identical.

This device comprises the open active dipole (1) of amounting in the middle of VHF frequency range in Fig. 3, a VHF frequency range reflector (2), three VHF frequency range directors (3), a basic half-wave dipole of uhf band (4), a uhf band reflector (5), seven uhf band directors (6), a plastic junction box (7), an aerial yard (8), a U-iron holder (9), an antenna installation vertical supporting rod (10).

With total length is that the distributing point of basic half-wave dipole (4) two arms of uhf band of 22cm is installed in the plane above the plastic junction box (7), and two arm distributing points of the open folded dipole (1) in centre are installed in the following plane of plastic junction box (7).The distributing point of active dipole (4), (1) left arm is together in parallel with a sheet metal, the distributing point of active dipole (4), (1) right arm is together in parallel with a sheet metal, this antenna feed impedance is about 300 Europe after the parallel connection, when making feeder line, should use balance with coaxial cable---uneven conversion adaptation.Device shown in the electrical length data of each active dipole, reflector, director and assembly relation, using method and Fig. 1, Fig. 2 is basic identical.

Above-mentioned three kinds of antennas all have wide impedance frequency bandwidth characteristics, good directionality, and antijamming capability is strong, can make TV images steady and audible than distance reception.

Claims

1, the outdoor common antenna device of domestic television set V-U, the half-wave that this device has a VHF frequency range to have two short circuit metal sheets is amounted to active dipole (1), a VHF frequency range reflector (2), three VHF frequency range directors (3), a uhf band half-wave is amounted to active dipole (4), a uhf band reflector (5), seven uhf band directors (6), a plastic junction box (7), an aerial yard (8), a U-iron holder (9), it is characterized in that director (6) uhf band, reflector (5), the director of VHF frequency range (3), reflector (2), respectively according to certain spacing arrangement be installed in same aerial yard (8) on, on following two planes, respectively uhf band active dipole (4), VHF frequency range active dipole (1) be installed in same plastic junction box (7) on, in following two planes, plastic junction box (7) is installed in VHF, uhf band reflector (2), (5) and VHF, uhf band first director (6), (3) on the cross bar between (8), make VHF, uhf band active dipole (1), (4) be parallel to each other to the director of frequency range (3) separately respectively, (6) and reflector (2), (5), active dipole in plastic junction box (1), (4) with a VHF～UHF signal mixed circuit, the frequency signal from two different frequency ranges is transferred to television receiver with a feeder line between distributing point and the feeder line.

2, device according to claim 1, it is characterized in that director (6) uhf band, reflector (5), the director of VHF frequency range (3), reflector (2), respectively according to certain spacing arrangement be installed in same aerial yard (8) on, on following two planes, respectively uhf band active dipole (4), VHF frequency range active dipole (1) is installed in two planes up and down of same plastic junction box (7), this terminal box (7) is installed in VHF, uhf band reflector (2), (5) and VHF, uhf band first director (6), (3) on the cross bar between (8), make VHF, uhf band active dipole (1), (4) be parallel to each other to the director of frequency range (3) separately respectively, (6) and reflector (2) (5).

3, according to claim 1,2 described devices, it is characterized in that respectively uhf band active dipole (4), VHF frequency range active dipole (1) being installed in upper and lower two planes of same plastic junction box (7), between the distributing point of interior two active dipoles of plastic junction box (7) (1), (4) and feeder line,, the frequency signal from two different frequency ranges is transferred to television receiver with a feeder line with a VHF～UHF signal mixed circuit.