CN101192706A - Shutter type flat plate antenna - Google Patents

Abstract

The invention relates to a louvered plate antenna, which comprises at least one lamina and a control device. A micro-strip antenna is configured on the lamina; the angle of the lamina can be controlled and regulated via the control device in order to optimize the satellite signal receiving angle of the micro-strip antenna disposed thereon, thus achieving the aim of facilitating installation and adjustment without ruining the building structure and the scenes. As the antenna has a small size and a light weight, little space is occupied and easy displacement and transportation are guaranteed.

Description

Shutter type flat plate antenna

Technical field

The present invention relates to a kind of plate aerial, relate in particular to a kind of shutter type flat plate antenna.

Background technology

Be generally the satellite antenna of watching that satellite television programming is installed at present, its external form is disc shape (being commonly called as little ear), in the use based on the plug-in wall or be positioned over nothings such as roof, courtyard and hide worn-out spaces, material has fine one-body molded two kinds of Zinc-coated steel-plated punch moulding and carbon, and such disc shape antenna may have following many shortcomings easily:

One, bulky, Heavy Weight, make transport and the high building operation on have certain difficulty and danger.

But though two, the fine one-body molded weight reduction of carbon, so its volume is still huge.

Three, mounting means difficulty, ordinary consumer can't be installed voluntarily.

When four, being installed on external wall of house or the roof, must and squeeze into setscrew or general screw is fixed, not only destroy the skin structure, influence facade, and cause the inharmonious of the original view in sub-district by boring.

Five, be installed on outside the room, easily Exposure to Sunlight, drench with rain, climatic factor influence such as blast and damaging.

And yet standard building administrative law successively of countries such as Australia, the U.S., China, Canada in recent years except that publicly-owned receiver, does not allow exterior wall that additional antenna is set and destroys the sub-district view.

At patent, see also Chinese utility application shown in Figure 1 number No. 89218824.3 antenna blind device, this case discloses a kind of used as television antenna blind device that is combined by antenna 4 and metal louvres mobile curtain, the blade 1 of its sun blind is adjustable by spacing and sheet metal double as reflection oscillator constitutes, the active dipole 2 and above-mentioned metal blade 1 S separated by a distance of antenna 4 is disposed at the outside of these sun blind, active dipole 2 links to each other with indoor tv machine 6 by system line 5 again, make the reflection oscillator by blade 1, when blade 1 receives television signal, earlier by regulating the direction in active a period of time 2, make it receive best signal, regulate again the inclination angle of this blade 1 or active dipole 2 and blade 1 apart from S, make clutter and useful wave phase shifting, to reach the energy that strengthens useful signal;

This case is to receive TV at general household radio, can't be applied to high-frequency satellite television programming and receive, and antenna must depend on and is arranged at this sun blind one side.

In addition, see also TaiWan, China patent application case shown in Figure 2 number No. 93212591 absorption type antenna structure, it is that displacement arm 20 is connected on the antenna 50, this displacement arm 20 is articulated in a sucker 10 again, this antenna 50 can be positioned on the smooth surface 70 by this sucker 10, when adjusting these displacement arm 20 rotations, can affect this antenna 50 in the lump and adjustment signal receiving angle;

This case is the wireless signal transmission at general computer, is not suitable for high-frequency satellite television programming and receives, and must be adsorbed in smooth surface.

Summary of the invention

The purpose of this invention is to provide a kind of shutter type flat plate antenna, design is fit to the aerial array of receiving satellite signal on antenna substrate, the regulation and control level divide to frequency range and orientation, and be the sun blind form with its assembly, reach and be convenient to the purpose installing, adjust.

The present invention proposes a kind of shutter type flat plate antenna, and it comprises:

At least one blade is to be provided with microstrip antenna on it;

One control device is in order to control the angle of this blade.

Preferably, this blade is the plural number setting that is arranged parallel to each other, and the one side that is provided with microstrip antenna is all towards same direction.

Preferably, this control device is the angle of control section or whole blades.

Preferably, this control device is the angle of controllable portion blade, and the blade of this part is the blade that is provided with microstrip antenna.

Preferably, this plural number blade is to contact mutually with flexible or stiff member.

Preferably, this plural number blade be arranged in the framework or a pedestal on, this framework or pedestal are to do arbitrarily angled rotation.

Preferably, this plural number blade be hubbed in this framework or pedestal on, and should the plural number blade can its position that is pivoted be that the axle center pivots.

Preferably, this microstrip antenna is that array is arranged on this blade.

Preferably, this microstrip antenna is to be responsible for one or its combinations wherein such as reception, emission respectively.

Preferably, this microstrip antenna of being responsible for respectively receiving, launching is to be arranged at respectively on the different blades.

Preferably, this microstrip antenna is to electrically connect with low noise functional block (LNB, Low Noise Block), power amplifier radio frequency modulating module such as (Power Amplifier).

Preferably, this radio frequency modulating module is to be arranged in the fixed mount.

Preferably, this blade is one-body molded with this microstrip antenna.

Preferably, be provided with connecting structure between this blade and this microstrip antenna, with so that this microstrip antenna and this blade mutually combine.

Preferably, this connecting structure is one of them or its combination such as gum, viscose, grab and draw-in groove, protruding rail and groove.

Preferably, this control device is one of them or its combination of manual or electronic control.

Preferably, this control device is that this blade is controlled in wired or wireless electric connection.

Preferably, the material of this blade is one of them or its combination of transparent or opaque metal, plastics

In sum, shutter type flat plate antenna provided by the present invention, it can be to have following many advantages:

One, design is fit to the aerial array of receiving satellite signal on antenna substrate, the regulation and control level divide to frequency range and orientation, and be the sun blind form with its assembly, reach and be convenient to the purpose installing, adjust.

Two, installation needn't destroy building structure.

Three, can select to be installed within doors, not reason climatic effect and damaging.

Four, can be with satellite antenna and curtain dual-use function.

Five, can be volume light and handy, take up space fewly, be beneficial to and move and transportation.

Six, moulding can cooperate with indoor decoration, and is aesthetic in appearance.

Seven, range of receiving is set when installing, and signal quality is stable.

Eight, can keep the original view in sub-district, and reach the requirement that beautifies family and improve the quality of living.

Further understand and approval for making to have for structure purpose of the present invention and effect, now conjunction with figs. describe in detail as after.

Description of drawings

Fig. 1 is the structural representation of known antenna blind device.

Fig. 2 is the structural representation of known absorption type antenna structure.

Fig. 3 is the perspective view of preferred embodiment of the present invention.

Fig. 4 is the side-looking view that preferred embodiment of the present invention receives signal.

Fig. 5 A and Fig. 5 B are the test structure schematic diagrames of different preferred embodiments of the present invention.

Fig. 6 is an one dimension aerial array factor schematic diagram.

Fig. 7 is an one-dimensional array antenna designs schematic diagram.

Fig. 8 is that the one-dimensional array antenna is in magnetic field face (H plane, array factor analogous diagram H-Plane).

Fig. 9 is that the one-dimensional array antenna is in electric field face (E plane, array factor analogous diagram E-Plane).

Figure 10 is that the one-dimensional array antenna is in magnetic field face (H plane, gain field pattern figure H-Plane).

Figure 11 is that the one-dimensional array antenna is in electric field face (E plane, gain field pattern figure E-Plane).

Figure 12 is the array antenna geometric graph designed according to one-dimensional array Antenna Design principle.

Figure 13 is that two-dimensional array antenna is in magnetic field face (H plane, gain field pattern figure H-Plane).

Figure 14 is that two-dimensional array antenna is in electric field face (E plane, gain field pattern figure E-Plane).

Figure 15 is that array microstrip antenna is in magnetic field face (H plane, the gain field pattern figure when H-Plane) upward phase shift 60 degree and antenna turn to 60 to spend.

Figure 16 is that array microstrip antenna is in electric field face (E plane, the gain field pattern figure when E-Plane) upward phase shift 60 degree and antenna turn to 60 to spend.

Figure 17 receives signal magnetic field face (H plane, antenna gain field pattern figure H-Plane) on horizontal plane the time.

Figure 18 receives signal electric field face (E plane, antenna gain field pattern figure E-Plane) on horizontal plane the time.

Drawing reference numeral is as follows: the 1-shutter type flat plate antenna; The flexible wire rod of 2-blade 21-tool; The 22-axle that is pivoted; The 3-microstrip antenna; The 4-fixed mount; The 4a-framework; The 4b-pedestal; The 41-adjusting lever; The 42-stay cord; 43-low noise functional block (LNB, Low Noise Block); 44-power amplifier (Power Amplifier); The 5-satellite; The 51-signal; The spacing of d-blade; The width of the every row microstrip antenna of dw-; θ, θ 1-angle.

Embodiment

Describe the present invention for reaching employed technological means of purpose and effect hereinafter with reference to the accompanying drawing of enclosing, and the cited embodiment of the following drawings only is an aid illustration, in order to understanding, but technological means of the present invention is not limited to cited accompanying drawing.

See also shown in Figure 3, shutter type flat plate antenna 1 provided by the invention, it comprises plural blade 2, array is provided with the microstrip antenna 3 of plural number on this blade 2 of part, this plural number blade 2 is the settings that are arranged parallel to each other, and the one side that is provided with microstrip antenna 3 is all towards same direction, illustrating this plural number blade is to contact mutually with the flexible wire rod 21 of tool, and should be suspended to a fixed mount 4 bottoms by plural number blade 2, side in this fixed mount 4 is provided with an adjusting lever 41 and a stay cord 42, by these adjusting lever 41 may command should plural number blade 2 luffing angle, these stay cord 42 may command should fold or the expansion that descends in 2 risings of plural number blade, its control mode as the soft sun blind of manual control lifting general, know as this technical field personage, except that above-mentioned manual mode, also can will should electrically connect drive motor by plural number blade 2, chain or belt, control the luffing angle or the lifting of this plural number blade 2 in electronic mode, and can cooperate wireless or wired electric connection mode, in other words, no matter manual the control device of or electronic different aspects as long as can reach the purpose that may command should 2 activities of plural number blade.

Microstrip antenna 3 about this array setting, at this brief description, such microstrip antenna is developed recently and a kind of new antenna of going out, because it is little to have size, cost is low, advantages such as sound construction and technology are simple, simultaneously can realize linear polarization or circular polarization and two-frequency operation easily, thereby be widely used in communicating by letter, fields such as broadcasting and Aero-Space, the present invention utilizes the frivolous mini advantage of such microstrip antenna, microstrip antenna 3 is incorporated on the blade 2, it is can be one-body molded with this blade 2, after also this microstrip antenna 3 and this blade 2 can being distinguished moulding alone, again by gum, viscose, grab and draw-in groove, mode of connection such as protruding rail and groove or connecting structure, this microstrip antenna 3 is linked mutually with this blade 2, and the material of this blade 2 is not limit, and can adopt transparent or opaque metal, plastics one of them or its combination; Look user mode and environment difference, this microstrip antenna 3 can be divided into and receive and emission two parts, and be arranged on the different blade 2, and this microstrip antenna 3 is and low noise functional block (LNB, Low Noise Block) 43, radio frequency modulating module such as power amplifier (Power Amplifier) 44 electrically connects, as shown in the figure, can be with this low noise functional block (LNB, Low Noise Block) 43, power amplifier (PowerAmplifier) 44 is arranged in this fixed mount 4, to keep the attractive in appearance of overall appearance.

See also shown in Figure 4, main purpose of the present invention is to utilize the adjustable characteristic of luffing angle of this blade 2, in order to receive the signal 51 that satellite 5 is launched, can be on this blade 2 array design be fit to receive the microstrip antenna 3 of these satellite signals 51, with the regulation and control level divide to frequency range and orientation, consumer Ke Yi reality is required, different size is set or has the blade 2 of different array microstrip antennas 3, select the suspention height of this shutter type flat plate antenna 1, the position and towards, and adjust the luffing angle of this blade 2, can solve the difference of receiving satellite signal angle, in addition, according to the environment difference is set, this shutter type flat plate antenna 1 can be designed at home or automobile-used type, and cooperates suitable waterproof, fire prevention or acid and alkali-resistance material; Moreover, this quantity that is provided with the blade 2 of this microstrip antenna 3 can suitably increase and decrease, as shown in Figure 3, it is to be provided with microstrip antenna 3 in four these blades 2 wherein, to adapt to the transmitting boundary of this signal 51, if be set to this blade 2 extractable and changeable, then can adjust the position of this microstrip antenna 3, also all blades 2 all can be provided with and have this microstrip antenna 3, to increase receiving area, as previously mentioned, characteristics of the present invention are to adjust the luffing angle of this blade 2 to receive the signal 51 that satellite 5 is launched, therefore, this shutter type flat plate antenna 1 can be designed to partly or all blade 2 adjustable structures, and the adjustable blade 2 of this part is provided with microstrip antenna 3.

In addition, because the satellite signals angle orientation that each user's position is faced is all different, therefore, shown in Fig. 5 A and Fig. 5 B, can with should plural number blade 2 be hubbed in the framework 4a of a rigidity or a plate-like or tabular pedestal 4b on, this plural number blade 2 can its axle 22 that is pivoted be pivoted adjusts outside angle θ, this framework 4a or pedestal 4b also can make arbitrarily angled θ 1 or azimuth rotation, maybe can lie against on the planes such as roof, balcony, meadow, to obtain best signal receiving angle.

About the design principle of aforementioned this microstrip antenna 3, can obtain checking by following formula and explanation; See also one dimension aerial array factor schematic diagram shown in Figure 6, suppose that each antenna is that single antenna such as the tropism of grade forms a line, this moment, the one-dimensional array factor can be expressed as:

$E_a\left(\mathrm{\&theta;}\right)=\underset{n=-M}{\overset{M}{\mathrm{\&Sigma;}}}{I}_n{e}^{j[\mathrm{na}-\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="A20061014561700131.png,A20061014561700141.png"\; state="\{\{state\}\}">n</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{\&lambda;}}d\sin \mathrm{\&theta;}]}$

Wherein,

I _n＝1，n＝-M?To?M

$a=\frac{2\mathrm{\&pi;}}{\mathrm{\&lambda;}}d\sin {\mathrm{\&theta;}}_0$

α is two antenna load point phase differences, θ ₀For departing from the zenith angle, d is two antenna distances; Be convenience of calculation, this one-dimensional array factor also can be expressed as:

$E_a\left(\mathrm{\&theta;}\right)=\frac{\sin -\left[(2M+1)\frac{\mathrm{\&pi;d}}{\mathrm{\&lambda;}}(\sin \mathrm{\&theta;}-\sin {\mathrm{\&theta;}}_0)\right]}{\sin \left[\frac{\mathrm{\&pi;d}}{\mathrm{\&lambda;}}(\sin \mathrm{\&theta;}-\sin {\mathrm{\&theta;}}_0)\right]}$

Design concrete array microstrip antenna according to above-mentioned formula, one-dimensional array antenna designs schematic diagram as shown in Figure 7, this one-dimensional array antenna has 16 rectangular microstrip antenna I, and the ratio of two rectangular microstrip antenna spacing d and two rectangular microstrip antenna load point phase difference α:

d/α＝0.85

See also Fig. 8 and shown in Figure 9, it is that this one-dimensional array antenna of Fig. 7 is in magnetic field face (H plane, H-Plane) and electric field face (E plane, E-Plane) array factor analogous diagram, be multiplied by the radiation pattern of rectangular microstrip antenna respectively again, promptly become this shown one-dimensional array antenna of Figure 10 and Figure 11 in the gain field pattern figure of magnetic field face and electric field face.

According to above-mentioned one-dimensional array Antenna Design principle, the two-dimensional array antenna of can deriving design formula is as follows:

E _α(θ，φ)＝E _x(θ，φ)E _y(θ，φ)

Wherein,

$E_x(\mathrm{\&theta;},\mathrm{\&phi;})=\underset{-M_x}{\overset{M_x}{\mathrm{\&Sigma;}}}{I}_m{\mathrm{<figure-callout\; id="2"\; label="e\; jm"\; filenames="A20061014561700131.png,A20061014561700141.png"\; state="\{\{state\}\}">e</figure-callout>}}^{\mathrm{jm}}$

$=\underset{-M_x}{\overset{M_x}{\mathrm{\&Sigma;}}}{I}_m{\mathrm{<figure-callout\; id="2"\; label="e\; jm"\; filenames="A20061014561700131.png,A20061014561700141.png"\; state="\{\{state\}\}">e</figure-callout>}}^{\mathrm{jm}}$ forφ＝0

$E_y(\mathrm{\&theta;},\mathrm{\&phi;})=\underset{-M_y}{\overset{M_y}{\mathrm{\&Sigma;}}}{I}_n{e}^{\mathrm{jn}\frac{2\mathrm{\&pi;}}{\mathrm{\&lambda;}}{d}_y\sin \mathrm{\&theta;}\sin \mathrm{\&phi;}}$

$=\underset{-M_y}{\overset{M_y}{\mathrm{\&Sigma;}}}{I}_n{e}^{\mathrm{jn}\frac{2\mathrm{\&pi;}}{\mathrm{\&lambda;}}{d}_y\sin \mathrm{\&theta;}}$ forφ＝90°

I _mAnd I _nRepresent the CURRENT DISTRIBUTION of the array antenna factor on x axle and y axle respectively, as shown in figure 12 according to the array antenna geometric graph of above-mentioned formula specific design, wherein, I _m, m=-M _x: M _x, I _n, n=-M _y: M _y

Similarly, suppose that this two-dimensional array antenna has 16 rectangular microstrip antenna I, be arranged in the five-element, wherein:

Two rectangular microstrip antenna spacing dx are dx/ α=0.85 with the ratio of two rectangular microstrip antenna load point phase difference α;

Two row rectangular microstrip antenna spacing dy are dy/ α=0.85 with the ratio of two rectangular microstrip antenna load point phase difference α;

So, can draw as Figure 13 and this two-dimensional array antenna shown in Figure 14 in magnetic field face (H plane, H-Plane) and electric field face (E plane, E-Plane) gain field pattern figure, by this simulation result as can be known, the array antenna maximum gain is 42dB and to receive ripple wide on the face of magnetic field be that 4 degree all meet direct broadcasting satellite and receive standard.

Design principle according to above-mentioned one dimension and two-dimensional array antenna d/ α=0.85 sees also Fig. 5 B, will be made as 20.4mm apart from d between two blades 2 (that is two array antennas), and the width dw of every row microstrip antenna is 10.2mm, brings data into the triangulation calculation formula:

10.2xcosθ+10.2xsinθxtanθ＝20.4

The tilt angle theta that can calculate blade 2 (that is antenna) is 60 degree, the blade 2 that is provided with the array microstrip antenna (not shown) places on the pedestal 24, switch to different angles along with the receiving angle difference, simultaneously by the phase change of adjusting each column array microstrip antenna to obtain preferable receiving angle, design like this not only can obtain preferable reception signal more can reduce other wave interference, see also Figure 15 and Figure 16, the array of display microstrip antenna is in magnetic field face (H plane respectively, H-Plane) and electric field face (E plane, the gain field pattern figure when E-Plane) going up phase shift 60 degree and antenna and turn to 60 to spend.

See also Figure 17 and Figure 18 again, it shows face (H plane, magnetic field when the reception signal is on horizontal plane respectively, H-Plane) and electric field face (E plane, E-Plane) antenna gain field pattern figure, by analog result as can be known, even the receiving gain in level still can reach 41dB, in view of the above as can be known, shutter type flat plate antenna structure provided by the present invention, can be by the anglec of rotation of angle of inclination, antenna frame or the pedestal of adjusting the one-dimensional array antenna, and the mode of phase shift reaches the stable purpose that receives the high-gain signal.

The above only is a most preferred embodiment of the present invention, can not with the scope implemented of qualification the present invention.Be that all equalizations of doing according to claim of the present invention change and modify, all should still belong in the scope that patent of the present invention contains.

Claims (16)

1. shutter type flat plate antenna is characterized in that it comprises:

At least one blade which is provided with microstrip antenna; And

One control device is in order to control the angle of this blade.

2. shutter type flat plate antenna as claimed in claim 1 is characterized in that, this blade is the plural number setting that is arranged parallel to each other, and the one side that is provided with microstrip antenna is all towards same direction.

3. shutter type flat plate antenna as claimed in claim 2 is characterized in that, this control device is the angle of control section or whole blades.

4. shutter type flat plate antenna as claimed in claim 2 is characterized in that, this plural number blade is to contact mutually with flexible or stiff member.

5. shutter type flat plate antenna as claimed in claim 2 is characterized in that, this plural number blade be arranged in the framework or a pedestal on, this framework or pedestal are to do arbitrarily angled rotation.

6. shutter type flat plate antenna as claimed in claim 5 is characterized in that, this plural number blade be hubbed in this framework or pedestal on, and should the plural number blade can its position that is pivoted be that the axle center pivots.

7. shutter type flat plate antenna as claimed in claim 1 is characterized in that, this microstrip antenna is that array is arranged on this blade, is responsible for respectively receiving, launching.

8. shutter type flat plate antenna as claimed in claim 9 is characterized in that, this microstrip antenna of being responsible for respectively receiving, launching is to be arranged at respectively on the different blades.

9. shutter type flat plate antenna as claimed in claim 1 is characterized in that, this microstrip antenna is to electrically connect with low noise functional block radio frequency modulating module.

10. shutter type flat plate antenna as claimed in claim 9 is characterized in that, this radio frequency modulating module is low noise functional block, the power amplifier that is arranged in the fixed mount.

11. shutter type flat plate antenna as claimed in claim 1 is characterized in that, this blade is one-body molded with this microstrip antenna.

12. shutter type flat plate antenna as claimed in claim 1 is characterized in that, is provided with connecting structure between this blade and this microstrip antenna, with so that this microstrip antenna and this blade mutually combine.

13. shutter type flat plate antenna as claimed in claim 12 is characterized in that, this connecting structure is one of them or its combination such as gum, viscose, grab and draw-in groove, protruding rail and groove.

14. shutter type flat plate antenna as claimed in claim 1 is characterized in that, this control device is one of them or its combination of manual or electronic control.

15. shutter type flat plate antenna as claimed in claim 14 is characterized in that, this control device is that this blade is controlled in wired or wireless electric connection.

16. shutter type flat plate antenna as claimed in claim 1 is characterized in that, the material of this blade is one of them or its combination of transparent or opaque metal, plastics.

Images