CN204230414U - A kind of gap array PCB antenna - Google Patents
A kind of gap array PCB antenna Download PDFInfo
- Publication number
- CN204230414U CN204230414U CN201420392802.7U CN201420392802U CN204230414U CN 204230414 U CN204230414 U CN 204230414U CN 201420392802 U CN201420392802 U CN 201420392802U CN 204230414 U CN204230414 U CN 204230414U
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- China
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- reflector
- radiating element
- element layer
- director
- pcb antenna
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Abstract
The utility model discloses a kind of gap array PCB antenna, comprise the first reflector and second reflector of integrated design, be provided with the first radiating element layer and the first director above described first reflector successively, above described second reflector, be provided with the second radiating element layer and the second director successively; Described first reflector is connected stub frequency-selective network with the second reflector joining place by a line transformer, described first radiating element layer and the second radiating element layer are respectively equipped with the first feeder line access point and the second feeder line access point, and described two feeder line access points are connected by coaxial transmission line; Described reflector, radiating element layer and director are double face copper PCB structure, double face copper are distributed with plated-through hole array.Gap array PCB antenna described in the utility model, had both had the advantage of the good directivity of Yagi antenna and higher gain, the advantage such as the size again with general plate aerial is little, lightweight, low price, high-effect, easy of integration and easy installation.
Description
Technical field
the utility model relates to a kind of radiotechnics, particularly a kind of gap array PCB antenna.
Background technology
at the radiotechnics equipment by electromagnetic wave transmission of information, as broadcast, TV, communication, navigation, radar etc., PCB antenna is absolutely necessary important component part, and in the application of dynamical satellite, aircraft and mobile communication mobile phone, PCB antenna obtains higher favor.But the usual gain of current PCB antenna compared with low, directivity is not high, size is large, heavier-weight and integrated difficulty is large.
Utility model content
the utility model object is: provide the PCB antenna that a kind of higher gain, good directivity and size are little, lightweight, easily integrated.
the technical solution of the utility model is:
the utility model has the advantages that:
a kind of gap array PCB antenna, comprise the first reflector and second reflector of integrated design, be provided with the first radiating element layer and the first director above described first reflector successively, above described second reflector, be provided with the second radiating element layer and the second director successively; Described first reflector is connected stub frequency-selective network with the second reflector joining place by a line transformer, described first radiating element layer and the second radiating element layer are respectively equipped with the first feeder line access point and the second feeder line access point, and described two feeder line access points are connected by coaxial transmission line; Described first director and the second director are shorter than 1/2 wavelength, i.e. 1/2 λ, and the first radiating element layer and the second radiating element layer are provided with gap, and gap length equals 1/2 λ, and 1/2 λ is longer than by the first reflector and the second reflector; Described first reflector, the first radiating element layer and the first director form an array, and the second reflector, the second radiating element layer and the second director form another array, and this Liang Ge array center spacing is greater than 1/2 λ.
preferably, described first reflector, the second reflector, the first radiating element layer, the second radiating element layer, the first director and the second director are PCB structure, described PCB structure is double face copper, double face copper is distributed with the plated-through hole array that copper is covered on conducting copper-clad plate two sides.
concrete, described line transformer is the 1:1 line transformer of 50 Ω.
preferably, described first director and the first radiating element layer distance, the second director and the second radiating element layer distance are 1/20 λ; Described first radiating element layer and the first reflector distance, the second radiating element layer and the second reflector distance are 1/15 λ.
further, described line transformer is 1/4 λ to the first feeder line access point and the second feeder line access point distance.
further, described first radiating element layer and the second radiating element layer are equipped with two radiating slots that orthogonal and total length is 1/2 λ.
further, described first radiating element layer and the second radiating element layer are also provided with some fixing holes, by the reflector of working of plastics and respective both sides with guide layer into and fix.
a kind of 4 array gap array PCB antenna, comprise the array of 4 above-mentioned reflectors, radiating element layer and director composition, and 4 arrays share a stub frequency-selective network.
a kind of hexahedron gap array PCB antenna, comprises a hexahedron structure, each of described hexahedron structure is equipped with above-mentioned gap array PCB antenna.
the beneficial effects of the utility model have:
1. gap array PCB antenna described in the utility model, had both had the advantage of the good directivity of Yagi antenna and higher gain, the advantage such as the size again with general plate aerial is little, lightweight, low price, high-effect and easy installation;
2. profile is applicable to plane and on-plane surface, and easily and microstrip circuitry combine;
3. be easily integrated on a cube, can enterprising Serial Communication in any direction, and keep high-gain.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the vertical view of the gap array PCB antenna described in the utility model embodiment;
fig. 2,3 is stub frequency-selective network S parameter figure described in the utility model embodiment;
fig. 4 is the structural representation of the radiating element layer described in the utility model embodiment;
fig. 5 is the structural representation of 4 array gap array PCB antenna described in the utility model embodiment;
fig. 6 is the structural representation of the hexahedron gap array PCB antenna described in the utility model embodiment.
Embodiment
embodiment:
as shown in Figure 1, the gap array PCB antenna that the utility model discloses, comprise the first reflector 10 and the second reflector 20 of integrated design, be provided with the first radiating element layer 11 and the first director 12 above described first reflector 10 successively, above described second reflector 20, be provided with the second radiating element layer 21 and the second director 22 successively; Described first reflector 10 is connected stub frequency-selective network 4 with the second reflector 20 joining place by a line transformer 3, described first radiating element layer 11 and the second radiating element layer 21 are respectively equipped with the first feeder line access point 111 and the second feeder line access point 211, and described two feeder line access points are connected by coaxial transmission line 5; Described first reflector 10, second reflector 20, first radiating element layer 11, second radiating element layer 21, first director 12 and the second director 22 are PCB structure, described PCB structure is double face copper, double face copper is distributed with the plated-through hole array that copper is covered in conducting copper-clad plate both sides, makes copper-clad plate both sides cover copper and be in same current potential.
concrete, described first director 12 and the second director 22 are shorter than 1/2 wavelength, i.e. 1/2 λ, and 1/2 λ is longer than by the first reflector 10 and the second reflector 20; Described first reflector 10, first radiating element layer 11 and the first director 12 form an array, and the second reflector 20, second radiating element layer 21 and the second director 22 form another array, and this Liang Ge array center spacing is greater than 1/2 λ.Described first radiating element layer 11 and the second radiating element layer 21 are provided with two radiating slots that orthogonal and total length is 1/2 λ, described first radiating element layer and the second radiating element layer are also provided with some fixing holes, by the reflector of working of plastics and respective both sides with guide layer into and fix, described first director and the first radiating element layer are 1/20 λ apart from, the second director and the second radiating element layer distance; Described first radiating element layer and the first reflector distance, the second radiating element layer and the second reflector distance are 1/15 λ.
concrete, be illustrated in figure 4 the structural representation of the first radiating element layer 11, the structure of the second radiating element layer 12 is identical with it, and wherein, K1 ~ K4 is fixing hole, is fixed to the first reflector 10 by working of plastics.J1 ~ J4 is also fixing hole, is fixed to first guides layer 12 into by working of plastics; C is 50 ohm of feeder line access points (i.e. 111 in Fig. 1).L1, L2 are radiating slot, and the length of L1 and the length of L2 are added and approximate 1/2 λ, and the width of L1 and L2 determines the bandwidth of operation of antenna, and gap is wider, and bandwidth is larger.
described line transformer 3 is the 1:1 line transformer of 50 Ω, and line transformer 3 to the first feeder line access point and the second feeder line access point distance are 1/4 λ.Stub frequency-selective network 5 coordinates defeated line transformer 3, and input stub frequency-selective network S parameter as shown in Figure 2 and Figure 3.
now, two directors are " capacitive " to induced signal, electric current leading voltage 90 degree; The electromagnetic wave of director induction can to the radiation of radiating element layer, and radiation signal lags behind from the aerial signal 90 degree directly arriving radiating element, and just counteract " in advance " that cause above, both phase places are identical, so signal superposition, strengthened.1/2 λ is slightly longer than by reflector, and in perception, electric current quadrature lagging, add and to be radiated in active dipole process quadrature lagging again, the signal be directly added on main element with reflector direction has just in time differed 180 degree, serves negative function.A direction is strengthened, and a direction weakens, and there has been highly directive.Emission state mechanism is as the same.
fig. 5 is the gap array PCB antenna being integrated with 4 a period of time, and gain can increase 2dBi.Adopt the PCB antenna of this structure not only to have good directivity and higher gain, and volume is little, lightweight, easily integrated, meet the demand of various high-effect communication equipment.
as shown in Figure 6, have employed hexahedron structure, there is a slot array antenna in each face, makes whole six face antenna all keep high-gain on 360 degree of directions.
Claims (9)
1. a gap array PCB antenna, it is characterized in that: the first reflector and the second reflector that comprise integrated design, be provided with the first radiating element layer and the first director above described first reflector successively, above described second reflector, be provided with the second radiating element layer and the second director successively; Described first reflector is connected stub frequency-selective network with the second reflector joining place by a line transformer, described first radiating element layer and the second radiating element layer are respectively equipped with the first feeder line access point and the second feeder line access point, and described two feeder line access points are connected by coaxial transmission line;
Described first director and the second director are shorter than 1/2 wavelength, i.e. 1/2 λ, and the first radiating element layer and the second radiating element layer are provided with gap, and gap length equals 1/2 λ, and 1/2 λ is longer than by the first reflector and the second reflector; Described first reflector, the first radiating element layer and the first director form an array, and the second reflector, the second radiating element layer and the second director form another array, and this Liang Ge array center spacing is greater than 1/2 λ.
2. gap array PCB antenna according to claim 1, it is characterized in that: described first reflector, the second reflector, the first radiating element layer, the second radiating element layer, the first director and the second director are PCB structure, described PCB structure is double face copper, double face copper is distributed with the plated-through hole array that copper is covered on conducting copper-clad plate two sides.
3. gap array PCB antenna according to claim 2, is characterized in that: described line transformer is the 1:1 line transformer of 50 Ω.
4. gap array PCB antenna according to claim 2, is characterized in that: described first director and the first radiating element layer distance, the second director and the second radiating element layer distance are 1/20 λ; Described first radiating element layer and the first reflector distance, the second radiating element layer and the second reflector distance are 1/15 λ.
5. gap array PCB antenna according to claim 3, is characterized in that: described line transformer is 1/4 λ to the first feeder line access point and the second feeder line access point distance.
6. gap array PCB antenna according to claim 4, is characterized in that: described first radiating element layer and the second radiating element layer are equipped with two radiating slots that orthogonal and total length is 1/2 λ.
7. gap array PCB antenna according to claim 6, is characterized in that: described first radiating element layer and the second radiating element layer are also provided with some fixing holes, by the reflector of working of plastics and respective both sides with guide layer into and fix.
8. 4 array gap array PCB antenna, is characterized in that: the array comprising 4 reflector, radiating element layer and director compositions as described in claim 1-7 any one, 4 arrays share a stub frequency-selective network.
9. a hexahedron gap array PCB antenna, is characterized in that: comprise a hexahedron structure, each of described hexahedron structure is equipped with the gap array PCB antenna as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392802.7U CN204230414U (en) | 2014-07-16 | 2014-07-16 | A kind of gap array PCB antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392802.7U CN204230414U (en) | 2014-07-16 | 2014-07-16 | A kind of gap array PCB antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230414U true CN204230414U (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420392802.7U Withdrawn - After Issue CN204230414U (en) | 2014-07-16 | 2014-07-16 | A kind of gap array PCB antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124517A (en) * | 2014-07-16 | 2014-10-29 | 苏州华士无线科技有限公司 | Slot array PCB (printed circuit board) antenna |
-
2014
- 2014-07-16 CN CN201420392802.7U patent/CN204230414U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124517A (en) * | 2014-07-16 | 2014-10-29 | 苏州华士无线科技有限公司 | Slot array PCB (printed circuit board) antenna |
| CN104124517B (en) * | 2014-07-16 | 2016-08-31 | 苏州华士无线科技有限公司 | A kind of gap array PCB antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |