阅读说明：本技术 全向型电视天线结构及全向型电视天线 (Omnidirectional television antenna structure and omnidirectional television antenna ) 是由 刘小兵 李勤 于 2021-07-21 设计创作，主要内容包括：本发明公开了全向型电视天线结构及全向型电视天线,包括控制板,其上设置有顺次电连接的合路器、匹配模块以及信号输出端子；UHF频段接收模块,其包括绕一中心点外周均匀布置的4个环形振子,4个环形振子并联组成输出75欧天线阵列；VHF频段接收模块,其包括通过巴伦匹配到75欧后与控制板连接的偶极子；UHF频段接收模块和VHF频段接收模块接收到的信号经合路器的合并以及匹配模块匹配到75欧后由信号输出端子输出信号；电视天线包括上盖、下盖以及所述的天线结构；通过采用组阵列的方式增加的天线的增益,令天线全向性较好,能高效率接收来自任何方向的信号,不会在一个方向上产生明显信号弱的情况。(The invention discloses an omnidirectional television antenna structure and an omnidirectional television antenna, which comprise a control panel, wherein a combiner, a matching module and a signal output terminal which are sequentially and electrically connected are arranged on the control panel; the UHF frequency band receiving module comprises 4 annular oscillators uniformly arranged around the periphery of a central point, and the 4 annular oscillators are connected in parallel to form an output 75-ohm antenna array; a VHF band receiving module including a dipole coupled to the control board after being matched to 75 ohms by balun; signals received by the UHF frequency band receiving module and the VHF frequency band receiving module are matched to 75 ohms by the combiner and the matching module, and then the signals are output by the signal output terminal; the television antenna comprises an upper cover, a lower cover and the antenna structure; the gain of the antenna is increased by adopting a group array mode, so that the antenna has better omni-directionality, can efficiently receive signals from any direction, and cannot generate the condition of obvious weak signals in one direction.)

1. An omnidirectional television antenna structure, comprising:

a control board (10) on which a combiner (11), a matching module (12) and a signal output terminal (20) are electrically connected in sequence;

the UHF frequency band receiving module comprises 4 annular oscillators (30) which are uniformly arranged around the periphery of a central point, wherein the 4 annular oscillators (30) are connected in parallel to form an output 75-ohm antenna array;

a VHF band receiving module including a dipole (40) connected to the control board (10) by balun matching to 75 ohms later; signals received by the UHF frequency band receiving module and the VHF frequency band receiving module are combined by the combiner (11) and matched to 75 ohms by the matching module (12), and then the signals are output by the signal output terminal (20).

2. An omnidirectional television antenna structure according to claim 1, wherein: the combiner (11) comprises an inductor L1-L5 and a capacitor C1-C6, one end of the inductor L1 is connected with the matching output end of the VHF frequency band receiving module, the other end of the inductor L1 is connected with one end of an inductor L2 and one end of a capacitor C1 respectively, the other end of the inductor L2 is connected with one end of an inductor L3 and one end of a capacitor C2 respectively, the other end of the capacitor C1 is connected with the other end of the capacitor C2 and a ground terminal respectively, the other end of the inductor L3 is connected with one end of the matching module (12) and one end of a capacitor C4 through a capacitor C3 respectively, the other end of the matching module (12) is connected with the signal output terminal (20), the other end of the capacitor C4 is connected with one end of the inductor L4 and one end of a capacitor C5 respectively, the other end of a capacitor C5 is connected with one end of an inductor L5 and one end of a capacitor C6 respectively, and the other end of an inductor L4 is connected with the other end of the inductor L5 and a ground terminal, the other end of the capacitor C6 is connected with the matching output end of the UHF frequency band receiving module.

3. An omnidirectional television antenna structure according to claim 1, wherein: the matching module (12) is arranged as a microstrip match line.

4. An omnidirectional television antenna structure according to claim 1, wherein said loop element (30) comprises:

a first straight line segment;

a first curved section having one end connected to one end of the first straight section;

a second curved section, one end of which is connected with the other end of the first straight section;

one end of the second straight line section is connected with the other end of the first bending section, and the other end of the second straight line section is used as a first output end and is connected with the control plate (10);

and one end of the third straight line section is connected with the other end of the second bending section, and the other end of the third straight line section is used as a second output end to be connected with the control plate (10).

5. An omnidirectional television antenna structure according to claim 1, wherein: the 4 ring-shaped vibrators (30) are 2 horizontal ring-shaped vibrators (31) oppositely arranged around the central point and 2 vertical ring-shaped vibrators (32) oppositely arranged around the central point.

6. An omnidirectional television antenna structure according to claim 1, wherein: the dipole (40) is provided as a ring dipole arranged around the central point.

7. Omnidirectional television antenna, its characterized in that: comprising an upper cover (50), a lower cover (60) and an antenna structure according to any of claims 1-6, the upper cover (50) being connected to the lower cover (60), the antenna structure being arranged between the upper cover (50) and the lower cover (60).

8. An omnidirectional television antenna according to claim 7, wherein: and a fixing structure for fixing the antenna structure is arranged on one side of the lower cover (60) close to the upper cover (50).

9. An omnidirectional television antenna according to claim 8, wherein: the fixing structure comprises a plurality of positioning plates (70), and clamping grooves (71) used for clamping the annular vibrators (30) and the dipoles (40) are formed in the upper end faces of the positioning plates (70).

10. An omnidirectional television antenna according to claim 7, wherein: and the connecting seat (80) is connected with the lower cover (60).

Technical Field

The invention relates to the technical field of television antennas, in particular to an omnidirectional television antenna structure and an omnidirectional television antenna.

Background

The antenna oscillator sends the received weak electromagnetic waves in the air to the transceiver for processing through the coaxial cable, but the vehicle and the ship can change directions continuously during driving, the signal received by the television during the driving of the vehicle and the ship can not change greatly only by the omnidirectional antenna of the receiving antenna, but most of the existing caravan antennas on the market at present have strong directional types, the television signal has stronger signal in a fixed direction, the signal is weak in other directions, the vehicle and the ship need to readjust the antenna direction to achieve the best receiving effect after moving, the defects of insufficient gain and great influence by a base station and the surrounding environment exist, and the omnidirectional television antenna structure and the omnidirectional television antenna are urgently needed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an omnidirectional television antenna structure and an omnidirectional television antenna.

The technical scheme adopted by the embodiment of the invention for solving the technical problem is as follows: an omnidirectional television antenna structure comprising:

the control panel is provided with a combiner, a matching module and a signal output terminal which are electrically connected in sequence;

the UHF frequency band receiving module comprises 4 annular oscillators uniformly arranged around the periphery of a central point, and the 4 annular oscillators are connected in parallel to form an output 75-ohm antenna array;

a VHF band receiving module including a dipole coupled to the control board after being matched to 75 ohms by balun; signals received by the UHF frequency band receiving module and the VHF frequency band receiving module are matched to 75 ohms by the matching module through the combination of the combiner and then are output by the signal output terminal.

Further, the combiner comprises an inductor L1-L5 and a capacitor C1-C6, one end of the inductor L1 is connected with the matching output end of the VHF frequency band receiving module, the other end of the inductor L1 is connected with one end of an inductor L2 and one end of a capacitor C1 respectively, the other end of the inductor L2 is connected with one end of an inductor L3 and one end of a capacitor C2 respectively, the other end of the capacitor C1 is connected with the other end of the capacitor C2 and a ground terminal respectively, the other end of the inductor L3 is connected with one end of a matching module and one end of a capacitor C4 through a capacitor C3 respectively, the other end of the matching module is connected with a signal output terminal, the other end of the capacitor C4 is connected with one end of the inductor L4 and one end of a capacitor C5 respectively, the other end of a capacitor C5 is connected with one end of an inductor L5 and one end of a capacitor C6 respectively, the other end of the inductor L4 is connected with the other end of the inductor L5 and the ground terminal, the other end of the capacitor C6 is connected with the matching output end of the UHF frequency band receiving module.

Further, the matching module is arranged as a microstrip matching line.

Further, the ring oscillator includes:

a first straight line segment;

a first curved section having one end connected to one end of the first straight section;

one end of the second bending section is connected with the other end of the first straight line section;

one end of the second straight line section is connected with the other end of the first bending section, and the other end of the second straight line section is used as a first output end and is connected with the control panel;

and one end of the third straight line section is connected with the other end of the second bending section, and the other end of the third straight line section is used as a second output end to be connected with the control panel.

Further, 4 ring oscillators are 2 horizontal ring oscillators oppositely arranged around the central point and 2 vertical ring oscillators oppositely arranged around the central point.

Further, the dipoles are arranged as ring dipoles arranged around a central point.

Furthermore, the omnidirectional television antenna comprises an upper cover, a lower cover and the antenna structure, wherein the upper cover is connected with the lower cover, and the antenna structure is arranged between the upper cover and the lower cover.

Furthermore, a fixing structure for fixing the antenna structure is arranged on one side of the lower cover close to the upper cover.

Furthermore, the fixed knot constructs including a plurality of locating plate, and the up end of locating plate is provided with the draw-in groove that is used for joint annular oscillator and dipole.

Furthermore, the omnidirectional television antenna also comprises a connecting seat connected with the lower cover.

The invention has the beneficial effects that: the omnidirectional television antenna structure comprises a control panel, wherein a combiner, a matching module and a signal output terminal which are sequentially and electrically connected are arranged on the control panel; the UHF frequency band receiving module comprises 4 annular oscillators uniformly arranged around the periphery of a central point, and the 4 annular oscillators are connected in parallel to form an output 75-ohm antenna array; a VHF band receiving module including a dipole coupled to the control board after being matched to 75 ohms by balun; signals received by the UHF frequency band receiving module and the VHF frequency band receiving module are combined by the combiner and matched to 75 ohms by the matching module, and then the signals are output by the signal output terminal; the television antenna comprises an upper cover, a lower cover and the antenna structure; the gain of the antenna is increased by adopting a group array mode, so that the antenna has better omni-directionality, can efficiently receive signals from any direction, and cannot generate the condition of obvious weak signals in one direction.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a first structure of an omni-directional television antenna;

fig. 2 is a schematic diagram of a second structure of an omnidirectional antenna;

fig. 3 is an exploded view of an omnidirectional television antenna;

FIG. 4 is a schematic diagram of an omnidirectional television antenna configuration;

fig. 5 is a schematic diagram of the circuitry on the control board.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are provided for the purpose of visually supplementing the description with figures and detailed description thereof, and in which are not intended to limit the scope of the invention.

In the description of the present invention, a plurality means two or more, and more than, less than, more than, etc. are understood as excluding the number, and more than, less than, more than, etc. are understood as including the number. If there is a description of the first and second for the purpose of distinguishing between technical features, it is not to be understood as indicating or implying a relative importance or implying a number of indicated technical features or implying a precedence of indicated technical features.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1 to 5, an omni-directional television antenna structure includes:

a control board 10 on which a combiner 11, a matching module 12 and a signal output terminal 20 are electrically connected in sequence;

the UHF frequency band receiving module comprises 4 annular vibrators 30 which are uniformly arranged around the periphery of a central point, and the 4 annular vibrators 30 are connected in parallel to form an output 75-ohm antenna array;

a VHF band receiving module including a dipole 40 connected to the control board 10 after being matched to 75 ohms by balun; signals received by the UHF band receiving module and the VHF band receiving module are matched to 75 ohms by the combiner 11 and the matching module 12, and then the signals are output by the signal output terminal 20.

In the invention, the UHF frequency band of the antenna adopts 4 annular vibrators, the annular vibrators adopt a design mode that parallel lines of 300 ohms are connected in parallel to form an antenna array for outputting 75 ohms, the VHF frequency band adopts a design mode that dipoles and balun are matched to 75 ohms, a combiner consisting of LC filter circuits is adopted at the output end of VHF and UHF matching to combine VHF and UHF signals together, and then a microstrip line matching circuit is adopted to match the combined signals to 75 ohms for outputting, so the design mode has the following advantages: 1. the gain of the antenna is increased in a group array mode; 2. the antenna has good omni-directionality, can efficiently receive signals from any direction, and cannot generate the condition of obvious weak signals in one direction.

Referring to fig. 6-11, fig. 6 is a 0-degree (Phi-0) radiation pattern of a certain conventional antenna on an E plane, fig. 7 is a 90-degree (Phi-90) radiation pattern of a certain conventional antenna on an E plane, fig. 8 is a 90-degree (Theta-90) radiation pattern of a certain conventional antenna on an H plane, fig. 9 is a 0-degree (Phi-0) radiation pattern of an omnidirectional tv antenna according to the present application, fig. 10 is a 90-degree (Phi-90) radiation pattern of an omnidirectional tv antenna according to the present application, fig. 11 is a 90-degree (Phi-90) radiation pattern of an omnidirectional tv antenna according to the present application, and table 1 is a gain and efficiency contrast; the omnidirectional of the present application is better (the waveform is more circular) in view of the direction, and the gain and efficiency are higher as a whole.

TABLE 1 gain, efficiency comparison

The combiner 11 comprises an inductor L1-L5 and capacitors C1-C6, one end of an inductor L1 is connected with the matching output end of the VHF frequency band receiving module, the other end of an inductor L1 is respectively connected with one end of an inductor L2 and one end of a capacitor C1, the other end of an inductor L2 is respectively connected with one end of an inductor L3 and one end of a capacitor C2, the other end of a capacitor C1 is respectively connected with the other end of a capacitor C2 and a ground terminal, the other end of an inductor L3 is respectively connected with one end of a matching module 12 and one end of a capacitor C4 through a capacitor C3, the other end of the matching module 12 is connected with the signal output terminal 20, the other end of a capacitor C4 is respectively connected with one end of an inductor L4 and one end of a capacitor C5, the other end of a capacitor C5 is respectively connected with one end of an inductor L5 and one end of a capacitor C6, the other end of an inductor L4 is respectively connected with the other end of an inductor L5 and a ground terminal, the other end of the capacitor C6 is connected with the matching output end of the UHF frequency band receiving module.

The match block 12 is arranged as a microstrip match line.

The ring oscillator 30 includes:

a first straight line segment;

a first curved section having one end connected to one end of the first straight section;

one end of the second bending section is connected with the other end of the first straight line section;

one end of the second straight line section is connected with the other end of the first bending section, and the other end of the second straight line section is used as a first output end and is connected with the control panel 10;

and one end of the third straight line segment is connected with the other end of the second bending segment, and the other end of the third straight line segment is used as a second output end and connected with the control panel 10.

4 ring oscillators 30 are arranged oppositely around a central point 2 horizontal ring oscillators 31 and oppositely around a central point 2 vertical ring oscillators 32.

The dipoles 40 are arranged as ring dipoles arranged around a central point.

The omnidirectional television antenna comprises an upper cover 50, a lower cover 60 and the antenna structure, wherein the upper cover 50 is connected with the lower cover 60, and the antenna structure is arranged between the upper cover 50 and the lower cover 60.

A fixing structure for fixing the antenna structure is provided on a side of the lower cover 60 adjacent to the upper cover 50.

The fixing structure comprises a plurality of positioning plates 70, and the upper end faces of the positioning plates 70 are provided with clamping grooves 71 used for clamping the ring-shaped vibrators 30 and the dipoles 40.

The omni-directional type television antenna further includes a connection socket 80 connected to the lower cover 60.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.