CN2248927Y - Active all-channel polydirectional receiving antenna of TV set - Google Patents

Abstract

The utility model relates to an active all-channel multi-direction receiving antenna. In the utility model, the number of active vibrators (2) for channels 1 to 12 is increased to eight, and the active vibrators are matched with a reverser and a director so that the gain of signals reception and directivity are improved. Due to that an active folding vibrator (5) for channels 13 to 68 can only receive the incident signals in two directions, another folding vibrator (11) is arranged on the folding vibrator (5) at an angle of 90 DEG so as to receive the incident signals in the other two directions. Therefore, the active all-channel multi-direction receiving antenna for TVs is formed.

Description

The multi-direction television receiving antenna of active all-channel

The utility model relates to a kind of exterior aerial of television set received television signal.

TV station transmits at different directions to the television transmission signal, and the television set reception antenna all has directivity, reception antenna is difficult to accomplish to make the rating image of each channel, sound accompaniment all undistorted when install adjusting direction, and especially the small-signal to the emission of remote television platform is difficult to take into account especially.

The purpose of this utility model provides a kind of direction that need not adjust reception antenna can make the television program receiving of each channel undistorted, solves the directivity of reception antenna effectively.

The purpose of this utility model is achieved in that the signal reception of 1～12 channel increases to eight to the number of 1～12 channel active dipole, is complementary with director and reflector and improves gain and bandwidth.The signal of 13～68 channels receives because one 13～68 active folded dipole of channel can only receive the incoming signal of two directions, and 90 ° refill the incoming signal that a folded dipole receives other two directions on it.

The utility model only needs to increase to eight at the number of 1～12 channel active dipole of original reception antenna, 90 ° refill a folded dipole above one 13～68 active folded dipole of channel, the gain and the bandwidth of incoming signal all are improved, have increased receive direction.

This practical concrete structure is provided by following examples and accompanying drawing.

Fig. 1 is the overall structure schematic diagram that the utility model proposes;

Fig. 2 is 1～12 a channel active dipole end view among Fig. 1;

Fig. 3 is the reflector end view among Fig. 1;

Fig. 4 is the director vertical view among Fig. 1;

Fig. 5 is the active folded dipole end views of 13～68 channels among Fig. 1.

Concrete structure and the operation principle that the utility model proposes is described in detail in detail below in conjunction with accompanying drawing.

Parts of the present utility model are installed on the aluminium square pipe (9) of an orthogonal strut (5) upper end, and front end is equipped with a little bend pipe (7), and the top five reflector oscillators of little bend pipe (7) (1) are screwed with plastic fixed plate (6).Eight 1～12 channel active dipoles (2) evenly distribute to be screwed all around at plastic fixed plate (6) and are installed in the aluminium square tube (9).In aluminium square pipe (9), have one 13～68 active folded dipole of channel (5) be housed above the active electronic amplifier (not drawing among the figure), be above the active folded dipole of 13～68 channels (5) 90 ° be equipped with a folded dipole (11), with the two-way geometrical clamps of plastics (12) connect with screw.Eight director oscillators (4) are installed in the rear end of aluminium square pipe (9) with screw with plastics fixed block (10).

The working condition of the multi-direction reception incoming signal of TV all-channel (1～68 channel) reception antenna is as follows: 1～12 channel active dipole (2) improves gain and bandwidth and directivity with reflection oscillator (1) and the mutual coupling of director oscillator (4) after the oscillator number increases to eight.One 13～68 active folded dipole of channel (5) is owing to can only receive the incoming signal of 1 direction, 70 ° of directions on it refill the incoming signal that a folded dipole (11) receives other two directions, and the received signal that makes 13～68 channels is multidirectional.

Claims (3)

1. the multi-direction television receiving antenna of active all-channel is made up of reflector (1), 1～12 channel active dipole (2), the active folded dipole of 13～68 channels (5), folded dipole (11) and director (4), the number that it is characterized in that 1～12 channel active dipole (2) is 8, and a folded dipole (11) is housed above the active folded dipole of 13～68 channels (5).

2. the multi-direction television receiving antenna of active all-channel according to claim 1 is characterized in that: 1～12 channel active dipole (2) number is 8.

3. the multi-direction television receiving antenna of active all-channel according to claim 1 is characterized in that: folded dipole (11) is 90 ° of angles and is installed in above the active folded dipole of 13～68 channels (5).

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