CN1066288C - EHF/SHF TV antenna - Google Patents
EHF/SHF TV antenna Download PDFInfo
- Publication number
- CN1066288C CN1066288C CN94106040A CN94106040A CN1066288C CN 1066288 C CN1066288 C CN 1066288C CN 94106040 A CN94106040 A CN 94106040A CN 94106040 A CN94106040 A CN 94106040A CN 1066288 C CN1066288 C CN 1066288C
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- antenna
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- cavity
- edge
- basal plate
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Abstract
The present invention relates to a planar antenna which is formed from a flat basal plate. A conducting material is coated on one surface of the basal plate except a funnel-shaped first cavity and a large-sized mouth part which extends along the periphery of the basal plate, wherein the sectional plane of the mouth part shrinks gradually towards the center of the basal plate, a long neck part which narrows gradually extends towards the periphery of the basal plate and keeps perpendicular or parallel to the surface of the basal plate near the mouth part. A small adjusting cavity can be arranged above the neck part connected to the periphery of the basal plate. A feed line for an antenna can be plated on the back of the funnel-shaped cavity, and a hard line penetrates through the basal plate to be connected to the outer surface, or the present invention is formed by the microwave strip technology.
Description
The present invention relates to the radio wave communication antenna, refer to that especially TV very high frequency(VHF)/hyperfrequency receives and transmitting antenna.
From continuing into the present in early days of TV, everybody thinks must be hinged with large-scale external antenna or cable, could provide necessary signal strength signal intensity to television receiver, allows spectators receive perfect picture and sound.
The form that external antenna is taked is big and burdensome taper or Yagi spark gap structure mostly, must out of doors they be erected on the roofbolt in building roof, loft or place like that.The structure of this class antenna is more or less fragile, because they are with a plurality of assembly be combined intos, comprise reflector, have all lengths so that lightweight aluminum pipe that can match or the formed receiving element of similar pipe fitting with the frequency requirement of various received signals, and the plastic insulation device.Receiving element utilizes insulator and is maintained at relative position, and reflector element is ground connection together then.
This class antenna must be made up voluntarily by the user, but at construction period some elements that must bend or fracture, if when dropping accidentally, promptly may be impaired and need to change, and the combination of perhaps also can asking someone was no matter that a kind of situation all can increase original just not low antenna cost.
This class external antenna can constantly be subjected to the influence of various factors.Even do not damaged or damage by these factors under the various in the future harsh weather conditions, the receptivity of these antennas also can variation or is weakened, or produces the bad gradually situation of receiving ability along with time because of the machinery decay.
Except aforesaid drawbacks, this class reception antenna is not attractive in appearance yet.
Present other used antenna is then beautiful but can't produce the domestic aerial of good image and sound for outward appearance.The most common and the most effective a kind of in this class domestic aerial, promptly belong near the sort of well known multiple bipolar system antenna that places the television set or on it, is commonly called as " rabbit ear ".But, this type of antenna is not good to the receptivity of edge zone, only the local received signal generation effectiveness stronger to signal.If when wanting to receive low frequency signal,, make " rabbit ear " even be easy to turn over, hinder and damage near the article that place it just bipolarly need extend to its maximum length.
Also adopt wired system that signal is sent to television set at present.This system can clearly send the extremely wide picture signal of frequency range to television set.But, a disadvantage of wire signal transfer system is that installation cost is very high, and simultaneously the user also needs regularly to pay for the transmission of signal, this expense every month even up to 100 dollars.
Satellite dish antenna and accessory thereof are to be used for the another kind of method of received television signal now.This method generally is used for receiving the TV signal that fixed satellite transmits, and effect is excellent.But the diameter of the teledish that this type systematic is required is very big, surpasses six chis usually, preferably more than 12 chis, just can receive the good signal level.As for the teledish of diameter below two chis, except the strongest satellite launch vehicle, remaining all can't receive at present.The acceptable teledish of size, owing to be difficult to hide, so seem to offend the eye.In addition, the present cost of this type systematic is very high, is not that each thinks that the spectators of reception good television image afford to adorn.
Before the present invention occurs, never find a kind of to signal height sensitivity and Indoor TV antenna attractive in appearance.
The present invention has adopted the brand-new design of a cover to domestic aerial.The present invention mainly is with the formed a kind of planar antenna of printed circuit technique.The pattern of this antenna belongs to a kind of bugle shape or breach shape antenna of Quadratic Finite Element.This antenna can be located on the substrate, and then available U.S. of this substrate anti-(mylar), glass fibre, REXLITE, polystyrene, polyamide, iron is the material of imperial glass fibre and so on not, or other any material that is suitable for this purposes is made.Substrate can be selected flexible material for use, conveniently rolls for collecting or spreading out into plane for use; But also for use rigid material can be selected so that form the substrate of a firm plane configuration.Being located at the antenna element on the substrate, can be any suitable electric conducting material, for example aluminium, copper, silver, gold, platinum or other any electric conducting material that is suitable for this purposes.This electric conducting material is to utilize any known technology to be attached on the substrate.
For an embodiment in, the antenna conductive material coating that is coated on first of the substrate is to form with not coating first cavity of a shape such as bugle is common, the profile in the cross section of this " horn of plenty " is from being positioned at a large-scale surf zone uncoated or not coating (mouth) at substrate one edge, one narrow throat is arranged towards keeping vertical direction to extend with bugle district mouth basically, and this not the Sectional Area of cladding region promptly diminish gradually towards narrow throat.Throat extend into one not coating and form make can with a preset frequency cooperate second than in the areola.In addition on the apparent surface of substrate, arranged a pair of separating, the throat region in the middle of first and second cavitys extend and pass substrate respectively with the join feeder line of energising of throat both sides.
The position of feeder line, the size of cavity, and the shape in bugle district all can be selected according to its special-purpose and frequency voluntarily by Antenna Design person, in the hope of obtaining optimum efficiency.
In the second embodiment of the present invention, be via being printed on the substrate, the microwave strip feeder line on the relative side with the bugle district is provided with energy or from this received energy to antenna.
First cavity can adopt many different shapes, and for example rectangle, square, circular or other any appropriate format are in the hope of reaching intention of the present invention.As for the sweep of throat, also can use other shape instead, for example semicircle or indentation or the like.
Because the cross section of antenna of the present invention is very carefully thin, can allow it follow wall-hanging article, for example wall felt, picture, photograph or flat television or the like are integrated, and also can be seated on automobile or train vehicle window or the roof, or be used for the suitable purposes that other any desire is used antenna.
In the time of on antenna is located at a flexible substrate, for collection or transportation, make its unlikely damage, also can be collected in the less space with regard to rollable.
Such as signal amplifier and distributor or the like accessory, all antenna share therewith, so that promote its performance or join with a plurality of receivers.
It is a kind of for the improved domestic aerial that receives and transmit that main purpose of the present invention is to provide.
Another object of the present invention provides a kind of for its length and height, the domestic aerial that the cross section is thin.
A further object of the present invention provides a kind of domestic aerial that utilizes known printing or coating mode and constitute on substrate.
Another purpose of the present invention provides a kind of antenna that can roll for collection or transportation.
Very high frequency(VHF) of the present invention/uhf television planar antenna is characterized in that, comprising:
One thin substrate, the wherein a part of coated with conductive material of described substrate first surface, the uncoated electric conducting material of another part, described uncoated surface forms a number one angular region that has an enlarged from first edge, first cavity that described number one angular region constitutes from described first edge when described substrate second edge extends, the cavity section diminishes gradually, become narrow thin throat, described throat end is provided with one with described second edges abut, is used for described antenna is adjusted to second cavity of preset frequency;
Pair of conductors is arranged on the described substrate second surface position relative with the described throat of described first cavity, and described conductor first end is electrically connected with described throat both sides outer rim respectively; And
One is electrically connected respectively with described conductor second end, and the connector that is connected with described antenna receiver/reflector.
Above-mentioned antenna is characterized in that, described substrate thickness is in 2 to 250mil (0.0508 to 6.35mm).
Above-mentioned antenna is characterized in that, described antenna thickness is in 2.5 to 251mil (0.0635 to 6.3754mm).
Above-mentioned antenna is characterized in that, described pair of conductors is coated on the described substrate.
Above-mentioned antenna is characterized in that, described conductor is single lead.
Above-mentioned antenna is characterized in that, described conductor belongs to microwave stripline runs structure.
Above-mentioned antenna is characterized in that, described antenna belongs to the stripline runs structure.
Above-mentioned antenna is characterized in that, described antenna is flexible.
Above-mentioned antenna is characterized in that, described antenna is a rigidity.
Above-mentioned antenna is characterized in that, described antenna and conductor belong to microwave stripline runs structure.
Above-mentioned antenna is characterized in that, described second edge keeps vertical with first edge.
Above-mentioned antenna is characterized in that, described first cavity extends to second edge of substrate.
Further specify architectural feature of the present invention and purpose below in conjunction with accompanying drawing.
Brief Description Of Drawings:
Figure 1A is the schematic diagram of its one side of one embodiment of the invention.
Figure 1B is positioned at second the schematic diagram at first back side shown in Figure 1A for the present invention.
Fig. 2 A is the orientation collection of illustrative plates of antenna of the present invention.
Fig. 2 B is the elevation angle collection of illustrative plates of antenna of the present invention.
Fig. 3 is the end view of the antenna shown in this Figure 1A and the 1B.
Fig. 4 is the schematic diagram of antenna second embodiment of the present invention.
Now see also Figure 1A, antenna 10 of the present invention is hinged with on a plate base 26, this substrate can be used U.S. anti-(MYLAR), glass fibre, REXLITE, polystyrene, polyamide, the iron not rigidity or the flexible material of imperial glass fibre and so on, or other any material that is suitable for this purposes is made.With circuit board, microwave strip circuit or other like configurations coated with conductive material on a surface 14 of knowing in the art.Any method that electric conducting material can be attached on the substrate all can be in order to implement the present invention.As for electric conducting material, then include but not limited to aluminium, copper, silver, gold, platinum or other any electric conducting material that is suitable for this purposes.
Shown in Figure 1A, surface conductance material on the first surface 14 is etched away, remove with suitable mode again, or when coating procedure, will not apply, so that form a mouth or enlarge the number one angular region 15 that position 16 is located at 18 places, edge, when uncoated surface with curve form towards the edge 20 when extending, its Sectional Area is along with diminishing.The narrow end in bugle district normally earlier towards keeping vertical direction bending with edge 18, then becomes and edge 18 keeping parallelisms, is terminal point with edge 20 or 22 at last, forms a throat 21 according to this.
Throat end in 15 scopes of the number one angular region of antenna, be provided with one can to cavity 16 adjust second than areola 23 so that enlarge the frequency range of antenna and feeder line 24,25, repeat after holding as for its details.This second is scheduled to than the form of areola 23, so that in predetermined frequency first cavity is adjusted.
Be second relative with 26 first of substrates shown in Figure 1B, which is provided with pair of conductors 24,25, these conductors can be other leads, or when applying first, are coated in the strip conductor that separates on the substrate with identical process and electric conducting material.Utilization lead separately passes substrate and is electrically connected in outer peripheral 28 and 29 positions of bugle district throat, and these conductors 24,25 are joined with those positions.When conductor 24,25 extends to the edge 22 of substrate, can join with a suitable connector 30, this connector 32 joins with class article that lead to the cable of holding wire 32 again, and this holding wire 32 then receives with of antenna in addition or reflector 34 joins.
Receiving or 30 of reflector 34 and connectors, can establish the accessory of arranging with series connection, for example filter 36 and amplifier 38 etc.
The orientation and the elevation angle width of cloth that are respectively antenna shown in Figure 1 shown in Fig. 2 A and the 2B are penetrated collection of illustrative plates.
Shown in Figure 3 is the gross thickness of substrate antenna 10, nominal thickness comprising substrate 26 arrives between 250mil (0.0508 to 6.35mm) 2, the nominal thickness that reaches conductive coating is between 0.5 to 1mil (0.0127 to 0.0254mm), so the gross thickness of antenna is between 2.5 to 251mil (0.0635 to 6.3754mm).
Shown in Figure 4 is second embodiment 40 of plane very high frequency(VHF)/ultra-high frequency antenna of the present invention.In this embodiment, be with substrate 26 wherein the surface 42 of a side (facing that side of beholder among Fig. 4) generally carry out coating processing according to embodiment illustrated in fig. 1, and allow the position 44 and the narrow positions 48 in bugle district 46 and bugle district become uncoated substrate.Be located at that opposite side surface (in the face of the behind on that surface of beholder) is gone up and, be the known microwave strip feeder line 50 in present technique field, available its received signal or transmit signal and give antenna 40 with shown in the dotted line.
As long as to the feeder line method, crooked throat, with the conductive surface of bugle district adjacency, or arbitrary combination of aforementioned each parameter makes amendment, and can obtain other plane printed circuit formula antenna configuration.
Claims (12)
1. very high frequency(VHF)/uhf television planar antenna is characterized in that, comprising:
One thin substrate, the wherein a part of coated with conductive material of described substrate first surface, the uncoated electric conducting material of another part, described uncoated surface forms a number one angular region that has an enlarged from first edge, first cavity that described number one angular region constitutes from described first edge when described substrate second edge extends, the cavity section diminishes gradually, become narrow thin throat, described throat end is provided with one with described second edges abut, is used for described antenna is adjusted to second cavity of preset frequency;
Pair of conductors is arranged on the described substrate second surface position relative with the described throat of described first cavity, and described conductor first end is electrically connected with described throat both sides outer rim respectively; And
One is electrically connected respectively with described conductor second end, and the connector that is connected with described antenna receiver/reflector.
2. antenna as claimed in claim 1 is characterized in that, described substrate thickness is in 2 to 250mil (0.0508 to 6.35mm).
3. antenna as claimed in claim 1 is characterized in that, described antenna thickness is in 2.5 to 251mil (0.0635 to 6.3754mm).
4. antenna as claimed in claim 1 is characterized in that described pair of conductors is coated on the described substrate.
5. antenna as claimed in claim 1 is characterized in that, described conductor is single lead.
6. antenna as claimed in claim 1 is characterized in that, described conductor belongs to microwave stripline runs structure.
7. antenna as claimed in claim 1 is characterized in that, described antenna belongs to the stripline runs structure.
8. antenna as claimed in claim 1 is characterized in that described antenna is flexible.
9. antenna as claimed in claim 1 is characterized in that described antenna is a rigidity.
10. antenna as claimed in claim 1 is characterized in that, described antenna and conductor belong to microwave stripline runs structure.
11. antenna as claimed in claim 1 is characterized in that, described second edge keeps vertical with first edge.
12. antenna as claimed in claim 11 is characterized in that, described first cavity extends to second edge of substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94106040A CN1066288C (en) | 1994-06-17 | 1994-06-17 | EHF/SHF TV antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94106040A CN1066288C (en) | 1994-06-17 | 1994-06-17 | EHF/SHF TV antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1114471A CN1114471A (en) | 1996-01-03 |
| CN1066288C true CN1066288C (en) | 2001-05-23 |
Family
ID=5032347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94106040A Expired - Fee Related CN1066288C (en) | 1994-06-17 | 1994-06-17 | EHF/SHF TV antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1066288C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853704A (en) * | 1988-05-23 | 1989-08-01 | Ball Corporation | Notch antenna with microstrip feed |
| US5036335A (en) * | 1989-06-09 | 1991-07-30 | The Marconi Company Limited | Tapered slot antenna with balun slot line and stripline feed |
| US5081466A (en) * | 1990-05-04 | 1992-01-14 | Motorola, Inc. | Tapered notch antenna |
-
1994
- 1994-06-17 CN CN94106040A patent/CN1066288C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853704A (en) * | 1988-05-23 | 1989-08-01 | Ball Corporation | Notch antenna with microstrip feed |
| US5036335A (en) * | 1989-06-09 | 1991-07-30 | The Marconi Company Limited | Tapered slot antenna with balun slot line and stripline feed |
| US5081466A (en) * | 1990-05-04 | 1992-01-14 | Motorola, Inc. | Tapered notch antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114471A (en) | 1996-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010523 Termination date: 20100617 |