CN201478434U

CN201478434U - Plane-flat-plate-type channel signal multidirectional antenna

Info

Publication number: CN201478434U
Application number: CN2009201568007U
Authority: CN
Inventors: 张明温
Original assignee: 3 WEN (HONG KONG) Ltd
Current assignee: 3 WEN (HONG KONG) Ltd
Priority date: 2009-07-01
Filing date: 2009-07-01
Publication date: 2010-05-19
Anticipated expiration: 2019-07-01

Abstract

The utility model relates to a plane-flat-plate-type channel signal multidirectional antenna, which is used for receiving television VHF and UHF frequency bands. The antenna is mainly designed on a printed circuit board (PCB) by means of plane flat plate, and the current path of the antenna is full distributed on the PCB to excite and generate a multidirectional receiving pattern. Furthermore, the feed end of the antenna is provided with a wound iron core to be taken as impedance match to concentrate the signal and overcome the medium loss of the PCB by air medium. In addition, the PCB is provided with a signal amplifying device which is connected with the antenna by a ceramic type capacitor, so that the wavelength of the antenna is increased, the receiving mode of the antenna is fallen at a VHF low-fervency part; and the signal amplifying device amplifies the signal by taking the circuit of a microwave monolithic integrated circuit (MMIC) as a RF signal, so that the effect for receiving and amplifying the signal is increased.

Description

Plane flat channel signals multidirectional antenna

Technical field

The utility model relates to the structural improvement of a kind of plane flat channel signals multidirectional antenna, its with Antenna Design at circuit board and the antenna current path is covered with on circuit board, enable to excite the reception field pattern that produces multidirectional, and can increase the reception wavelength of antenna and the effective area of received signal.

Background technology

Antenna assembly is to be the product of watching that the radiovision program is indispensable, except viewing and admiring cable TV (CATV), if received signal is watched program voluntarily, all must use antenna, and antenna assembly is divided into domestic aerial and exterior aerial.Traditional domestic aerial structure, as shown in Figure 1, mainly has a circuit board 1, centre is a line areas 11, both sides then are provided with dash receiver 111, and the circuit of described dash receiver 111 and line areas 11 is to be printed on simultaneously on the circuit board 1, can be received the signal of UHF by dash receiver 111, signal as for VHF is then received by line areas 11 connection copper bars 112, and whole device is very simple.Yet the antenna of this kind pattern in the use must be with vertical received television signal, and antenna also must cooperate the TV signal source to go to adjust to receive the orientation, indoor attractive in appearance of the influence easily that both taken up space also.

Progressive domestic aerial, then shown in Fig. 2,3, it is the line unit of described circuit board 2 bilayers, mainly be to utilize contrapolarization and overlapping coupling to excite magnetic field, and the feed-in mode of antenna, be with microstrip line 21 feed-ins again through changeing resistance, keep flat and purpose that multidirectional receives so can have, but this kind Indoor antenna device is to utilize microstrip line 21 feed-ins to finish through the mode of changeing resistance again.

Summary of the invention

Main purpose of the present utility model provides a kind of plane flat channel signals multidirectional antenna, its with Antenna Design at circuit board and the antenna current path is covered with on circuit board, enable to excite the reception field pattern that produces multidirectional, and can increase the reception wavelength of antenna and the effective area of received signal.

In order to achieve the above object, the utility model relates to a kind of plane flat channel signals multidirectional antenna, mainly formed by outer box of a platypelloid type and circuit board, described Antenna Design is on circuit board (PCB), and its current path is to be covered with on circuit board, to excite the reception field pattern that produces multidirectional.And correspondence has been inserted Copper Foil and metal wire on the described circuit board, to increase the effective area of received signal.Be positioned at the antenna feed side and then be provided with around iron core to come, and make in the set of signals, and can make the electric current coupling response of received signal layer river outlet,, can overcome the dielectric loss of circuit board by air dielectric as for being formed with the gap between each adjacent Copper Foil as impedance matching.Be provided with signal amplifying apparatus on circuit board centre side in addition, it is to increase the reception wavelength of antenna by ceramic-type (DIP) electric capacity, and can allow the reception mode of antenna drop on the VHF low frequency part.

Compared with prior art, the beneficial effects of the utility model are: not only practicality height, and adjustment that needn't be time-consuming, the effect convenient and progressive than tool.

Description of drawings

Fig. 1 is the schematic diagram of existing domestic aerial circuit board;

Fig. 2 is the schematic diagram of another existing domestic aerial circuit board;

Fig. 3 is the schematic diagram of existing domestic aerial circuit board another side;

Fig. 4 is a stereogram of the present utility model;

Fig. 5 is a three-dimensional exploded view of the present utility model;

Fig. 6 is a circuit board schematic diagram of the present utility model;

Fig. 7 is the rearview of circuit board of the present utility model;

Fig. 8 is that the utility model utilizes the schematic diagram of tinplate as antenna.

Description of reference numerals: 1,2-circuit board; The 11-line areas; The 111-dash receiver; The 112-copper bar; The 21-microstrip line; The 3-box body; The 4-circuit board; Box at the bottom of the 31-; The 32-loam cake; 401,402-Copper Foil; The 403-metal wire; 42,62-gap; The 50-power socket; The 5-signal amplifier; The 51-output; 52-ceramic-type electric capacity; 53-is around iron core; 60-receives piece.

Embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the utility model is above-mentioned.

At first, seeing also shown in Figure 4ly, is stereo appearance figure of the present utility model, and it is improved traditional most of antenna and is all vertical design, must cooperate the pattern that antenna receive of adjusting according to the direction in signal source in the use.Change with laminar box body 3, the circuit board 4 (Fig. 5 is consulted in cooperation) of built-in described reception receives on the table and can directly keep flat, and also can use on the wall by wall hanging.Described box body 3 is made up of end box 31 and loam cake 32, and is all flat, does not only more take up space, and by multidirectional of the present utility model, allows the user not need to do in use very time-consuming adjustment antenna.

Secondly, please continue to consult shown in Figure 6, be the front view of the utility model circuit board 4, described antenna be design on circuit board 4, it mainly is that current path with antenna is covered with at circuit board, to excite the reception field pattern that produces multidirectional.Described antenna central authorities are a signal amplifying apparatus 5, and it is to amplify as the RF signal with monolithic integrated circuit (MMIC).Both sides then are extended with the Copper Foil 401,402 of symmetry and metal wire 403 on circuit board 4, and can increase the effective area of antenna receiving signal.Be provided with an output 51 and power socket 50 as for described signal amplifying apparatus 5 bottoms, then be provided with ceramic-type electric capacity 52 near both sides, power supply place in the middle of its back side, utilize ceramic-type electric capacity 52 with antenna and signal amplifying apparatus 5 conductings, form a loop, and described antenna feed side is provided with one around iron core 53 (consulting shown in Figure 7).

Relevant described design around iron core 53 is please then consulted shown in Figure 7ly, is the rearview of described circuit board 4, wherein saidly mainly make in the set of signals around unshakable in one's determination 53 as impedance matching, and with the electric current coupling response of the received signal layer river outlet of circuit board 4.And be to receive the UHF signal at the Copper Foil 401 of circuit board 4,402 of Copper Foils can receive the VHF signal.And

Copper Foil

401 and 402 are formed with a suitable gap 42, and can utilize air dielectric to finish the dielectric loss that overcomes circuit board 4 by inductance and capacity effect, are beneficial to receive the VHF signal.Ceramic-type electric capacity 52 is with signal amplifying apparatus 5 and antenna conducting in addition, mainly is the reception wavelength that is used for increasing antenna, allows the reception mode of antenna can drop on the VHF low frequency part.As for being functions, be different from traditional mode that needs elder generation to hinder through commentaries on classics again with the microstrip line feed-in with impedance transformation around iron core 53.

And described signal amplifying apparatus 5, be that circuit with monolithic integrated circuit (MMIC) amplifies as the RF signal, it is to be located at place, circuit board 4 central authorities below, antenna receiving signal can be amplified signal via signal amplifying apparatus 5, therefore receive relatively poor zone for signal, have the effect of gain.

Characteristics more of the present utility model are circuit boards 4 of described antenna assembly, can replace with metals such as tinplates, see also shown in Figure 8, its surface is the shape of corresponding Copper Foil 40, metals such as tinplate are formed several piece and difform reception piece 60, directly arrange and be fixed on the end box 31, the central authorities below also can add described signal amplifying apparatus 5, described adjacent reception piece 60, be to be separated with an appropriate gap 62 mutually each other, therefore can overcome the dielectric loss of circuit board by airborne medium, and increase the effective area of antenna receiving signal, more can improve the receiving quality of antenna.

In addition, another characteristics of the present utility model are described signal amplifying apparatus 5, though be located at circuit board 4 central authorities belows, but receive and then monolithic integrated circuit (MMIC) can be set when preferable zone need not signal amplified again when being used in signal, and still can possess outside the preferable reception effect of antenna, and can reduce manufacturing cost.

In sum, the utility model is designed to the flat multidirectional antenna structure in plane, cooperation is around iron core, ceramic-type electric capacity and signal amplifying apparatus, make the effect and the stability multiplication of antenna receiving signal, really can get a desired effect and purpose, reason has met novel patent requirement, proposes patent application in accordance with the law.

More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.

Claims

1. plane flat channel signals multidirectional antenna, mainly formed by box body and circuit board, it is characterized in that: described circuit board central authorities are provided with a signal amplifying apparatus, then be covered with the antenna that extends with Copper Foil and metal wire in other places of described circuit board, and be provided with in described antenna feed side one around iron core as impedance transformation, and the electric current coupling response of described received signal layer river outlet around iron core and described circuit board, and the Copper Foil on the described circuit board, be to be formed with the Copper Foil that receives UHF and receive the different shaping of VHF, and between adjacent Copper Foil, be provided with a gap, and utilize air dielectric to overcome the dielectric loss of described circuit board; Described signal amplifying apparatus is provided with ceramic-type electric capacity, described ceramic-type electric capacity and described antenna conducting, and the reception wavelength of increase antenna makes the reception mode of antenna drop on the VHF low frequency part.

2. plane according to claim 1 flat channel signals multidirectional antenna is characterized in that described circuit board is made for the tinplate metal.

3. plane according to claim 1 flat channel signals multidirectional antenna is characterized in that, the signal amplifying apparatus of described circuit board central authorities is the signal powers according to the receiving area, selects to install additional or be not installed on the described circuit board.