CN2431650Y - Aerial for receiving wired television and VHF-UHF all-channel television signals - Google Patents

Abstract

The utility model relates to a TV aerial which is used for inducting and receiving TV signals leaked in the space in the process of transmission of program signals of a CATV wired TV and simultaneously carries out the distance reception to the VHF-UHF1-56 full-channel TV signals. A designed and adopted aerial active vibrator with the characteristics of wide impedance frequency bands is arranged at both ends of a transverse rod of a T-shaped bracket with an elbow. The utility model effectively increases the receiving area to the TV signals and enhances the induction electromotive force of the active vibrator. The utility model can receives about twenty wired TV programs without any electric connection with a line transmission system of wired TV stations.

Description

Receive the antenna of cable TV and VHF～UHF full channel tv signal

The utility model relates to a kind ofly can either receive the CATV cable TV signal, can receive the antenna of VHF～UHF full channel tv signal again simultaneously.

At present, known common television receiving antenna commonly used general adapts to the VHF that receives TV station's emission or some TV signal in the uhf band, does not leak TV signal in the space and receive or receive unintelligible CATV cable TV station transmission system.

The purpose of this utility model provides the antenna of a kind of CATV of reception cable TV signal and VHF very high frequency(VHF)～UHF uhf television signal.Leak TV signal near it is not only applicable to receive in the CATV CATV transmission process, and can also carry out long-range reception for the TV signal of VHF～UHF all-channel in the space.

The purpose of this utility model is achieved in that it is the antenna oscillator that a kind of wide impedance frequency bandwidth characteristics is adopted in design, and it is to use two commercially available aluminum pot covers is that conductor material is formed symmetrical oscillator.Order electrically connects between oscillator and electronic component, feeder line and the plug.The center of circle and edge at two aluminum pot covers respectively bore a screw hole.Pipe made of plastic, threeway, elbow are assembled into a kind of T type support that elbow is arranged, respectively bore a symmetrical circular hole at the two ends, the left and right sides of the T shape rack cross-bar that elbow is arranged.The center of circle of two aluminum pot covers each with a screw, be fixed on respectively on the circular hole at T shape rack cross-bar two ends of elbow.In the hole at two aluminum pot lid edges, each installs a fixed screw as the distributing point binding post.At the inner electronic component of installing of the elbow of the T shape support that elbow is arranged, wire hole in the elbow upper end is drawn two leads that connecting electronic component, the feeder line that is connecting electronic component from inside that elbow, threeway, montant are interconnected through and draw after, lead to television set.The montant of T shape support is is uprightly installed and fixed, and with the oscillator of two symmetries in the face of the optimum reception direction, just can received television signal.

Owing to design and adopt the active dipole of above-mentioned two aluminum pot covers as wide impedance frequency bandwidth characteristics, increased for the receiving area of TV signal effectively and strengthened induced electromotive force, reception all shows through repeatedly experimentizing, can be in long-range reception VHF very high frequency(VHF) 1～12 channel and UHF superfrequency 13～56 channel TV signals with this antenna, can respond to again receive near CATV cable TV station in transmission signal process, leak TV programme signal in the space, can overcharge than common antenna and see the wired TV programme of nearly 20 covers, picture-and-sound is clear, and does not need have any just connection to watch with the line system of cable TV station.In addition, this antenna can uprightly be placed on the television set or on the balcony and use, and is little because it has a volume, lightweight advantage.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation that first embodiment of T shape support of elbow is arranged of the present utility model.

Fig. 2 is the structural representation that second embodiment of T shape support of elbow arranged of the present utility model.

Fig. 3 is the antenna example structure schematic diagram that receives cable TV and VHF～UHF full channel tv signal.

Among the figure 1, threeway A 2, cross bar 3, screw hole 4, plastic cap 5, wire hole 6, threeway B 7, elbow 8, montant 9, feeder line 10, base 11, aluminum pot cover 12, binding post

In Fig. 1, the T shape support that elbow arranged is that pipe and the pipe fitting of 20～25mm formed by the diameter made from PVC plastics (or plastics of other model).It is the two ends, the left and right sides that two symmetrical cross bars (2) (plastic tube) are fastened on threeway A (1), at the two ends of cross bar (2) plastic cap (4) is installed respectively.Interconnect the upper end of the lower end of threeway A (1) and threeway B (6) fixing, the upper end of the lower end of threeway B (6) and montant (8) (plastic tube) is interconnected, interconnect in the centre of threeway B (6) and an end of elbow (7), the other end of elbow (7) is wire hole (5), passes through and draw feeder line (9) in the inside that elbow (7), threeway B (6), montant (8) are interconnected.This T shape support embodiment that elbow is arranged, suitable montant (8) uprightly is fixed on outdoor or the balcony used.

In Fig. 2, there are T shape support and Fig. 1 of elbow basic identical, only increased a base (10) in the lower end of montant (8), this designs when aiming at indoor use antenna.Feeder line (9) is extracting later from the inside of montant (8) and base (10).

In Fig. 3, there is the T shape support of elbow identical with Fig. 1 structure.Screw hole (3) at the two ends, the left and right sides of cross bar (2), each installs and fixes the active dipole aluminum pot cover (11) of two symmetries respectively with a screw.About the optimum diameter and the area of aluminum pot cover (11), can calculate its data by the TV signal frequency scope and the wavemeter that receive for desire.On sale in aluminum pot cover (11) city, the thickness of its material should be chosen between 0.35mm～1mm.As when the outdoor application in order to consider windage, can on active dipole, bore some ventilation holes.Electronic component (not drawing among the figure) is installed in inside at elbow (7), and two leads that connect electronic component in that the upper end wire hole (5) of elbow (7) is drawn are connected on respectively on (distributing point) binding post (12) at aluminum pot cover edge.The feeder line that is connected with electronic component, pass through and extract from the inside that elbow (7), threeway B (6), montant (8) are interconnected, lead to television set.If with the above-mentioned active dipole Orthogonal Composite of two secondary symmetries, can realize that also omni-directional receives (not drawing among the figure).The material of active dipole of the present utility model except that the aluminum pot cover that can adopt certain diameter, also can adopt commercially available aluminum grate to replace, like this, and antiwind resistance when more helping outdoor reception.

Claims (5)

1, a kind of antenna that receives cable TV and VHF～UHF full channel tv signal, the distributing point binding post (12) of active dipole aluminum pot cover (11) is electrically connected with electronic component, feeder line (9) order, it is characterized in that: aluminum pot cover (11) symmetry is fixed on the two ends, the left and right sides of the T type rack cross-bar (2) of elbow, distributing point binding post (12) is arranged on aluminum pot cover (11).

2, the antenna of reception cable TV signal according to claim 1 and VHF～UHF full channel tv signal, it is characterized in that: cross bar (2) symmetry is mounted on the two ends, the left and right sides of threeway A (1), at the two ends of cross bar (2) symmetrical plastic cap (4) is installed, interconnect the upper end of the lower end of threeway A (1) and threeway B (6) fixing, interconnect the lower end of threeway B (6) and montant (8) fixing, be connected to a fixed in the centre of threeway B (6) and an end of elbow (7), the other end of elbow (7) is wire hole (5).

3, the antenna of reception cable TV according to claim 1 and VHF～UHF full channel tv signal is characterized in that: have the montant (8) of the T type support of elbow to be mounted on the base (10).

4, the antenna of reception cable TV according to claim 1 and VHF～UHF full channel tv signal is characterized in that feeder line (9) that electronic component connects passes through and draws from the inside of the elbow (7), threeway B (6) and the montant (8) that are interconnected.

5, the antenna of reception cable TV according to claim 1 and VHF～UHF full channel tv signal is characterized in that: active dipole also can directly replace with the aluminum grate except that the aluminum pot cover (11) that can adopt certain diameter.

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