CN104993229A - Small-size broadband patch antenna - Google Patents
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- CN104993229A CN104993229A CN201510366268.1A CN201510366268A CN104993229A CN 104993229 A CN104993229 A CN 104993229A CN 201510366268 A CN201510366268 A CN 201510366268A CN 104993229 A CN104993229 A CN 104993229A
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Abstract
The invention relates to a small-size broadband patch antenna. The antenna provided by the invention comprises a metal micro-strip patch, a metal grounding plate, and a dielectric plate located between the metal micro-strip patch and the metal grounding plate. The dielectric plate is provided with a plated-through hole which is connected with the metal micro-strip patch and the metal grounding plate. The metal micro-strip patch is square, and four corners of the metal micro-strip patch are respectively provided with a first rectangular slot hole, a second rectangular slot hole, a third rectangular slot hole and a fourth rectangular slot hole in the diagonal direction in an extending manner. The beneficial effects of the invention are that the antenna can excite two surface currents which are perpendicular to each other, have the same amplitude and have a rough 90-degree phase difference, thereby generating circularly-polarized waves; the circularly-polarized waves can be excited at two adjacent frequency points, thereby greatly enlarging the working bandwidth while the miniaturization is guaranteed, improving the performance of the antenna, and reducing the debugging difficulty in practical use.
Description
[technical field]
The present invention relates to antenna, particularly relate to a kind of small size wideband patch antenna in antenna.
[background technology]
In recent years, along with the fast development of System of Satellite Position and Communication (as GPS, the Big Dipper), circularly-polarized patch antenna is more and more paid close attention to.Circularly-polarized patch antenna has little, lightweight, the low section of size, is easy to processing, to features such as weather environment applicability are strong.And constantly diminish along with the volume of radio communication terminal, also there are requirements at the higher level to the size of antenna.For this reason, designer proposes a lot of scheme to realize the miniaturization of antenna.For circularly-polarized patch antenna, realizing miniaturized main method has two kinds, first: the size being reduced antenna by the groove digging various shape on paster.Second: the size material (as pottery) paster being overlayed on high-k reducing antenna.
Although these methods effectively can reduce the size of circularly-polarized patch antenna, make the bandwidth of operation of circularly-polarized patch antenna become very narrow, thus have impact on the performance of antenna and the debugging difficulty added in actual applications.
[summary of the invention]
In order to solve the problems of the prior art, the invention provides a kind of small size wideband patch antenna.
The invention provides a kind of small size wideband patch antenna, comprise metal micro-strip paster, metal ground plate and be positioned at described metal micro-strip paster, dielectric-slab between metal ground plate, described dielectric-slab is provided with and connects described metal micro-strip paster, the plated-through hole of metal ground plate, described metal micro-strip paster is square, four angles of described metal micro-strip paster are respectively equipped with along the first extended rectangular shaped slot of its diagonal, second rectangular shaped slot, 3rd rectangular shaped slot and the 4th rectangular shaped slot, described metal micro-strip paster is provided with the 5th rectangular shaped slot broken it into two, by described 5th rectangular shaped slot, described metal micro-strip paster is divided into the first metal micro-strip paster and the second metal micro-strip paster, wherein, described first rectangular shaped slot, second rectangular shaped slot is positioned on described first metal micro-strip paster, described first rectangular shaped slot, the angle of the second rectangular shaped slot is 90 degree, described 3rd rectangular shaped slot, 4th rectangular shaped slot is positioned on described second metal micro-strip paster, described 3rd rectangular shaped slot, the angle of the 4th rectangular shaped slot is 90 degree, the position that described first metal micro-strip paster is positioned at described first rectangular shaped slot is extended with the first stub, the position that described first metal micro-strip paster is positioned at described second rectangular shaped slot is extended with the second stub, the position that described second metal micro-strip paster is positioned at described 3rd rectangular shaped slot is extended with the 3rd stub, the position that described second metal micro-strip paster is positioned at described 4th rectangular shaped slot is extended with the 4th stub.
As a further improvement on the present invention, the length of described first stub, the second stub, the 3rd stub and the 4th stub is each unequal, wherein, the length of described first stub is greater than the length of described second stub, and the length of described 3rd stub is greater than the length of described 4th stub.
As a further improvement on the present invention, described metal micro-strip paster is square, its length of side is L, the first rectangular metal tail that the position that described first stub is included in described first rectangular shaped slot extends respectively to the both sides of described first metal micro-strip paster and the second rectangular metal tail, the length of described first rectangular metal tail is L1, the length of described second rectangular metal tail is L2, wherein, and L1=L2=0.2 ~ 0.6L.
As a further improvement on the present invention, described metal micro-strip paster is square, its length of side is L, the 3rd rectangular metal tail that the position that described second stub is included in described second rectangular shaped slot extends respectively to the both sides of described first metal micro-strip paster and the 4th rectangular metal tail, the length of described 3rd rectangular metal tail is L3, the length of described 4th rectangular metal tail is L4, wherein, and L3=L4<0.3L.
As a further improvement on the present invention, described metal micro-strip paster is square, its length of side is L, the 5th rectangular metal tail that the position that described 3rd stub is included in described 3rd rectangular shaped slot extends respectively to the both sides of described second metal micro-strip paster and the 6th rectangular metal tail, the length of described 5th rectangular metal tail is L5, the length of described 6th rectangular metal tail is L6, wherein, and L5=L6<0.3L.
As a further improvement on the present invention, described metal micro-strip paster is square, its length of side is L, the 7th rectangular metal tail that the position that described 4th stub is included in described 4th rectangular shaped slot extends respectively to the both sides of described second metal micro-strip paster and the 8th rectangular metal tail, the length of described 7th rectangular metal tail is L7, and the length of described 8th rectangular metal tail is L8, wherein, L7=0.4 ~ 0.7L, L8=0.15 ~ 0.5L.
As a further improvement on the present invention, described metal ground plate is square, the length of side of described metal ground plate is greater than the length of side of described metal micro-strip paster, described metal ground plate is provided with the 6th rectangular shaped slot, described 6th rectangular shaped slot is positioned at immediately below described 5th rectangular shaped slot, and described first metal micro-strip paster and described second metal micro-strip paster are symmetrical arranged along described 5th rectangular shaped slot.
As a further improvement on the present invention, described metal micro-strip paster is square, and its length of side is L, and described metal ground plate is square, and its length of side is G, and the flute length of described 6th rectangular shaped slot is L12, wherein, and G>L, L12=0.8 ~ 1.2L.
As a further improvement on the present invention, described first metal micro-strip paster is provided with coaxial feed point, described metal ground plate is provided with coaxial connection mouth, the described plated-through hole aperture be positioned on described first metal micro-strip paster is the first rectangular metal aperture, the described plated-through hole aperture be positioned on described metal ground plate is the second rectangular metal aperture, described first rectangular metal aperture and described first rectangular shaped slot, the extended line of the second rectangular shaped slot intersects, described metal micro-strip paster is square, its length of side is L, the flute length in described first rectangular metal aperture is L9, wherein, L9=0.2 ~ 0.6L.
As a further improvement on the present invention, described metal micro-strip paster is square, its length of side is L, described first rectangular shaped slot, the second rectangular shaped slot, the 3rd rectangular shaped slot and the 4th rectangular shaped slot are all equal along the flute length to angular direction of described metal micro-strip paster, and be L13, wherein, L13=0.2 ~ 0.5L.
The invention has the beneficial effects as follows: pass through such scheme, two can be motivated mutually vertically, equal and the phase of amplitude is similar to the surface current of 90 degree, thus generation circularly polarised wave, all can motivate circularly polarised wave at two adjacent frequencies, thus while guarantee is miniaturized, also significantly add bandwidth of operation, improve the performance of antenna, and reduce debugging difficulty in actual applications.
[accompanying drawing explanation]
Fig. 1 is the front view of a kind of small size wideband patch antenna of the present invention.
Fig. 2 is the right view of small size wideband patch antenna of the present invention.
Fig. 3 is the rearview of small size wideband patch antenna of the present invention.
Fig. 4 is that the surface current of small size wideband patch antenna of the present invention flows to schematic diagram.
Fig. 5 is that the standing-wave ratio and axial ratio (on greatest irradiation direction) of testing small size wideband patch antenna of the present invention are with frequency variation curve figure.
[embodiment]
Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
Drawing reference numeral in Fig. 1 to Fig. 5 is: metal micro-strip paster 1; First metal micro-strip paster 101; Second metal micro-strip paster 102; 5th rectangular shaped slot 103; First rectangular metal tail 11; Second rectangular metal tail 12; 3rd rectangular metal tail 13; 4th rectangular metal tail 14; 5th rectangular metal tail 15; 6th rectangular metal tail 16; 7th rectangular metal tail 17; 8th rectangular metal tail 18; First rectangular shaped slot 191; Second rectangular shaped slot 192; 3rd rectangular shaped slot 193; 4th rectangular shaped slot 194; Plated-through hole 2; First rectangular metal aperture 21; Second rectangular metal aperture 22; Metal ground plate 3; 6th rectangular shaped slot 31; Coaxial feed point 41; Coaxial connection mouth 42; Coaxial line 5.
As shown in Figures 1 to 4, a kind of small size wideband patch antenna, comprise metal micro-strip paster 1, metal ground plate 3 and be positioned at described metal micro-strip paster 1, dielectric-slab between metal ground plate 3, described dielectric-slab can be F4BM, FR4, CER-10, pottery etc., described dielectric-slab is provided with and connects described metal micro-strip paster 1, the plated-through hole 2 of metal ground plate 3, described metal micro-strip paster 1 is square, described metal ground plate 3 is also square, and, the length of side of described metal ground plate 3 is greater than the length of side of described metal micro-strip paster 1, wherein, described metal micro-strip paster 1 can be preferably square, its length of side is L, described metal ground plate 3 can be preferably square, its length of side is G, then G>L.
As shown in Figures 1 to 4, four angles of described metal micro-strip paster 1 are respectively equipped with along the first extended rectangular shaped slot 191 of its diagonal, second rectangular shaped slot 192, 3rd rectangular shaped slot 193 and the 4th rectangular shaped slot 194, i.e. the first rectangular shaped slot 191, second rectangular shaped slot 192, 3rd rectangular shaped slot 193 and the 4th rectangular shaped slot 194 are equivalent to two articles of cornerwise four ends of described metal micro-strip paster 1, described metal micro-strip paster 1 is provided with the 5th rectangular shaped slot 103 broken it into two, by described 5th rectangular shaped slot 103, described metal micro-strip paster 1 is divided into the first metal micro-strip paster 101 and the second metal micro-strip paster 102, be specially, by described 5th rectangular shaped slot 103, foursquare described metal micro-strip paster 1 is divided into the first metal micro-strip paster 101 of rectangle and the second metal micro-strip paster 102 of rectangle, wherein, described first rectangular shaped slot 191, second rectangular shaped slot 192 is positioned on described first metal micro-strip paster 101, described first rectangular shaped slot 191, the angle of the second rectangular shaped slot 192 is 90 degree, described 3rd rectangular shaped slot 193, 4th rectangular shaped slot 194 is positioned on described second metal micro-strip paster 102, described 3rd rectangular shaped slot 193, the angle of the 4th rectangular shaped slot 194 is 90 degree, described first rectangular shaped slot 191, second rectangular shaped slot 192, 3rd rectangular shaped slot 193 is all equal along the flute length to angular direction of described metal micro-strip paster 1 with the 4th rectangular shaped slot 194, and be L13, wherein, L13=0.2 ~ 0.5L, described first rectangular shaped slot 191, second rectangular shaped slot 192, 3rd rectangular shaped slot 193, 4th rectangular shaped slot 194 and the 5th rectangular shaped slot 103 are narrow and long rectangular slotted eye, described first rectangular shaped slot 191, second rectangular shaped slot 192, 3rd rectangular shaped slot 193, the groove width span of the 4th rectangular shaped slot 194 and the 5th rectangular shaped slot 103 is 0.2 ~ 1 millimeter.
As shown in Figures 1 to 4, the position that described first metal micro-strip paster 101 is positioned at described first rectangular shaped slot 191 is extended with the first stub, the position that described first metal micro-strip paster 101 is positioned at described second rectangular shaped slot 192 is extended with the second stub, the position that described second metal micro-strip paster 102 is positioned at described 3rd rectangular shaped slot 193 is extended with the 3rd stub, and the position that described second metal micro-strip paster 102 is positioned at described 4th rectangular shaped slot 194 is extended with the 4th stub.
As shown in Figures 1 to 4, the length of described first stub, the second stub, the 3rd stub and the 4th stub is each unequal, wherein, the length of described first stub is greater than the length of described second stub, and the length of described 3rd stub is greater than the length of described 4th stub.
As shown in Figures 1 to 4, the first rectangular metal tail 11 and the second rectangular metal tail 12 that the position that described first stub is included in described first rectangular shaped slot 191 extends respectively to the both sides of described first metal micro-strip paster 101, described first rectangular metal tail 11 and described first metal micro-strip paster 101 while parallel, described second rectangular metal tail 12 parallels with the another side of described first metal micro-strip paster 101, namely, the angle of the first rectangular metal tail 11 and the second rectangular metal tail 12 is 90 degree, first rectangular metal tail 11 and the second rectangular metal tail 12 wrap up wherein one jiao of described first metal micro-strip paster 101, the length of described first rectangular metal tail 11 is L1, the length of described second rectangular metal tail 12 is L2, wherein, L1=L2=0.2 ~ 0.8L, the width span of the first rectangular metal tail 11 and the second rectangular metal tail 12 is 0.2 ~ 1 millimeter.
As shown in Figures 1 to 4, the 3rd rectangular metal tail 13 that the position that described second stub is included in described second rectangular shaped slot 192 extends respectively to the both sides of described first metal micro-strip paster 101 and the 4th rectangular metal tail 14, described 3rd rectangular metal tail 13 and described first metal micro-strip paster 101 while parallel, described 4th rectangular metal tail 14 parallels with the another side of described first metal micro-strip paster 101, namely, the angle of the 3rd rectangular metal tail 13 and the 4th rectangular metal tail 14 is 90 degree, 3rd rectangular metal tail 13 and the 4th rectangular metal tail 14 wrap up wherein one jiao of described first metal micro-strip paster 101, the length of described 3rd rectangular metal tail 13 is L3, the length of described 4th rectangular metal tail 14 is L4, wherein, L3=L4<0.3L, the width span of the 3rd rectangular metal tail 13 and the 4th rectangular metal tail 14 is 0.2 ~ 1 millimeter.
As shown in Figures 1 to 4, the 5th rectangular metal tail 15 that the position that described 3rd stub is included in described 3rd rectangular shaped slot 193 extends respectively to the both sides of described second metal micro-strip paster 102 and the 6th rectangular metal tail 16, described 5th rectangular metal tail 15 and described second metal micro-strip paster 102 while parallel, described 6th rectangular metal tail 16 parallels with the another side of described second metal micro-strip paster 102, namely, the angle of the 5th rectangular metal tail 15 and the 6th rectangular metal tail 16 is 90 degree, 5th rectangular metal tail 15 and the 6th rectangular metal tail 16 wrap up wherein one jiao of described second metal micro-strip paster 102, the length of described 5th rectangular metal tail 15 is L5, the length of described 6th rectangular metal tail 16 is L6, wherein, L5=L6<0.3L, the width span of the 5th rectangular metal tail 15 and the 6th rectangular metal tail 16 is 0.2 ~ 1 millimeter.
As shown in Figures 1 to 4, the 7th rectangular metal tail 17 that the position that described 4th stub is included in described 4th rectangular shaped slot 194 extends respectively to the both sides of described second metal micro-strip paster 102 and the 8th rectangular metal tail 18, described 7th rectangular metal tail 17 and described second metal micro-strip paster 102 while parallel, described 8th rectangular metal tail 18 parallels with the another side of described second metal micro-strip paster 102, namely, the angle of the 7th rectangular metal tail 17 and the 8th rectangular metal tail 18 is 90 degree, 7th rectangular metal tail 17 and the 8th rectangular metal tail 18 wrap up wherein one jiao of described second metal micro-strip paster 102, the length of described 7th rectangular metal tail 17 is L7, the length of described 8th rectangular metal tail 18 is L8, wherein, L7=0.4 ~ 0.7L, L8=0.15 ~ 0.5L, the width span of the 7th rectangular metal tail 17 and the 8th rectangular metal tail 18 is 0.2 ~ 1 millimeter, and, the most preferred scheme of the present invention is L7=L8, but in order to realize miniaturized object, the 8th rectangular metal tail 18 is made structurally to have to dodge the first rectangular metal tail 11, and adopt the 8th rectangular metal tail 18 to be slightly shorter than the structure of the 7th rectangular metal tail 17.
As shown in Figures 1 to 4, described metal ground plate 3 is provided with the 6th rectangular shaped slot 31, described 6th rectangular shaped slot 31 is positioned at immediately below described 5th rectangular shaped slot 103, described first metal micro-strip paster 101 is symmetrical arranged along described 5th rectangular shaped slot 103 with described second metal micro-strip paster 102, namely the 5th rectangular shaped slot 103 is equivalent to the vertical center line of described metal micro-strip paster 1, described first metal micro-strip paster 101 is the rectangle that shape is identical with described second metal micro-strip paster 102, the width of described first metal micro-strip paster 101 is L10, the width of described second metal micro-strip paster 102 is L11, the flute length of described 6th rectangular shaped slot 31 is L12, wherein, L10=L11, L12=0.8 ~ 1.2L, the groove width span of described 6th rectangular shaped slot 31 is 0.2 ~ 1 millimeter.
As shown in Figures 1 to 4, described first metal micro-strip paster 101 is provided with coaxial feed point 41, described metal ground plate 3 is provided with coaxial connection mouth 42, the coaxial line 5 of 50 ohm is connected with by described coaxial connection mouth 42, described plated-through hole 2 aperture be positioned on described first metal micro-strip paster 101 is the first rectangular metal aperture 21, described plated-through hole 2 aperture be positioned on described metal ground plate 3 is the second rectangular metal aperture 22, described first rectangular metal aperture 21 and described first rectangular shaped slot 191, the extended line of the second rectangular shaped slot 192 intersects, described metal micro-strip paster 1 is square, its length of side is L, the flute length in described first rectangular metal aperture 21 is L9, wherein, L9=0.2 ~ 0.6L.
As shown in Figures 1 to 4, the operation principle of a kind of small size wideband patch antenna provided by the invention is:
The surface current of described small size wideband patch antenna flows to path 1: flow to the first stub from the center of metal micro-strip paster 1.
The surface current of described small size wideband patch antenna flows to path 2: the center flowing to metal micro-strip paster 1 from the second stub.
The surface current of described small size wideband patch antenna flows to path 3: flow to the 3rd stub from the center of metal micro-strip paster 1.
The surface current of described small size wideband patch antenna flows to path 4: the center flowing to metal micro-strip paster 1 from the 4th stub.
In the first metal micro-strip paster 101, mutually vertical with the surface current along path 2 along path 1, amplitude is equal, and its phase difference value is determined by the length difference of the first stub 1 and the second stub, by optimizing the length difference of the first stub and the second stub, make path 1 and path 2 phase 90 degree on appointment frequency f1, thus the first metal micro-strip paster 101 motivates circular polarization mode of operation on frequency f1, in like manner, in the second metal micro-strip paster 102, mutually vertical with the surface current along path 4 along path 3, amplitude is equal, by optimizing the length difference of the 3rd stub and the 4th stub, make path 3 and path 4 phase 90 degree on appointment frequency f2, thus the second metal micro-strip paster 102 motivates circular polarization mode of operation on frequency f2.So whole small size wideband patch antenna can all motivate circular polarization mode of operation at two adjacent frequencies (f1, f2, f1<f2), thus significantly increases the bandwidth of operation of antenna.
In order to further illustrate the service behaviour of a kind of small size wideband patch antenna provided by the invention, on the basis of said structure parameter, test, test structure as shown in Figure 5, Fig. 5 be test standing-wave ratio and axial ratio (on greatest irradiation direction) with frequency variation curve figure, as can be seen from axial ratio curve, circular polarisation resonance point (the resonance point 1 that described small size wideband patch antenna has two to close on, resonance point 2), thus have about 3.8%(2.560-2.660 GHz) axial ratio bandwidth (axial ratio 3dB); As can be seen from standing-wave ratio curve, the impedance bandwidth (standing-wave ratio 2) of described small size wideband patch antenna is approximately 6.8%(2.490-2.667 GHz), it covers the axial ratio bandwidth of antenna.Therefore, the bandwidth of operation (standing-wave ratio 2, axial ratio 3dB) of described small size wideband patch antenna is 3.8%(2.560-2.660 GHz), compared with traditional small size circular polarized antenna, improve significantly.
A kind of small size wideband patch antenna provided by the invention has the following advantages:
1. structure is simple, size is little, is easy to processing, can be mass.
2. bandwidth of operation is improved, two satellite communication frequency ranges can be covered simultaneously, compare traditional small size circularly-polarized patch antenna, owing to only there is a circular polarisation resonance point, bandwidth of operation very narrow (being generally less than 1%), and small size wideband patch antenna provided by the invention can motivate two circular polarisation resonance points at two adjacent frequencies, significantly can improve the axial ratio bandwidth of antenna, its bandwidth of operation is approximately 2-3 times of conventional circular polarization paster antenna, GPS can be accepted simultaneously,, the signal of the Big Dipper two kinds of satellite communication systems.
3. structurally, stronger to the applicability of dielectric-slab and manufacture craft level.Because material deviation and manufacture craft deviation to the performance of antenna, can produce considerable influence to working frequency points especially.Traditional small size circular polarized antenna is due to work strip width, the error applicability caused these factors is poor, higher to the requirement of technique, and the structure of small size wideband patch antenna proposed by the invention, its bandwidth of operation is approximately 2-3 times of conventional circular polarization paster antenna, so it is comparatively strong, namely poor to the requirement of technique to the adaptability of dielectric board material deviation and manufacture craft deviation, can effectively reduce costs.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. a small size wideband patch antenna, it is characterized in that: comprise metal micro-strip paster (1), metal ground plate (3) and be positioned at described metal micro-strip paster (1), dielectric-slab between metal ground plate (3), described dielectric-slab is provided with and connects described metal micro-strip paster (1), the plated-through hole (2) of metal ground plate (3), described metal micro-strip paster (1) is for square, four angles of described metal micro-strip paster (1) are respectively equipped with along extended the first rectangular shaped slot (191) of its diagonal, second rectangular shaped slot (192), 3rd rectangular shaped slot (193) and the 4th rectangular shaped slot (194), described metal micro-strip paster (1) is provided with the 5th rectangular shaped slot (103) broken it into two, by described 5th rectangular shaped slot (103), described metal micro-strip paster (1) is divided into the first metal micro-strip paster (101) and the second metal micro-strip paster (102), wherein, described first rectangular shaped slot (191), second rectangular shaped slot (192) is positioned on described first metal micro-strip paster (101), described first rectangular shaped slot (191), the angle of the second rectangular shaped slot (192) is 90 degree, described 3rd rectangular shaped slot (193), 4th rectangular shaped slot (194) is positioned on described second metal micro-strip paster (102), described 3rd rectangular shaped slot (193), the angle of the 4th rectangular shaped slot (194) is 90 degree, the position that described first metal micro-strip paster (101) is positioned at described first rectangular shaped slot (191) is extended with the first stub, the position that described first metal micro-strip paster (101) is positioned at described second rectangular shaped slot (192) is extended with the second stub, the position that described second metal micro-strip paster (102) is positioned at described 3rd rectangular shaped slot (193) is extended with the 3rd stub, the position that described second metal micro-strip paster (102) is positioned at described 4th rectangular shaped slot (194) is extended with the 4th stub, described first stub, second stub, the length of the 3rd stub and the 4th stub is each unequal, the length of described first stub is greater than the length of described second stub, the length of described 3rd stub is greater than the length of described 4th stub, described metal micro-strip paster (1) is square, its length of side is L, the first rectangular metal tail (11) that the position that described first stub is included in described first rectangular shaped slot (191) extends respectively to the both sides of described first metal micro-strip paster (101) and the second rectangular metal tail (12), the length of described first rectangular metal tail (11) is L1, the length of described second rectangular metal tail (12) is L2, wherein, L1=L2=0.2 ~ 0.6L.
2. small size wideband patch antenna according to claim 1, it is characterized in that: described metal micro-strip paster (1) is square, its length of side is L, the 3rd rectangular metal tail (13) that the position that described second stub is included in described second rectangular shaped slot (192) extends respectively to the both sides of described first metal micro-strip paster (101) and the 4th rectangular metal tail (14), the length of described 3rd rectangular metal tail (13) is L3, the length of described 4th rectangular metal tail (14) is L4, wherein, L3=L4<0.3L.
3. small size wideband patch antenna according to claim 1, it is characterized in that: described metal micro-strip paster (1) is square, its length of side is L, the 5th rectangular metal tail (15) that the position that described 3rd stub is included in described 3rd rectangular shaped slot (193) extends respectively to the both sides of described second metal micro-strip paster (102) and the 6th rectangular metal tail (16), the length of described 5th rectangular metal tail (15) is L5, the length of described 6th rectangular metal tail (16) is L6, wherein, L5=L6<0.3L.
4. small size wideband patch antenna according to claim 1, it is characterized in that: described metal micro-strip paster (1) is square, its length of side is L, the 7th rectangular metal tail (17) that the position that described 4th stub is included in described 4th rectangular shaped slot (194) extends respectively to the both sides of described second metal micro-strip paster (102) and the 8th rectangular metal tail (18), the length of described 7th rectangular metal tail (17) is L7, the length of described 8th rectangular metal tail (18) is L8, wherein, L7=0.4 ~ 0.7L, L8=0.15 ~ 0.5L.
5. small size wideband patch antenna according to claim 1, it is characterized in that: described metal ground plate (3) is for square, the length of side of described metal ground plate (3) is greater than the length of side of described metal micro-strip paster (1), described metal ground plate (3) is provided with the 6th rectangular shaped slot (31), described 6th rectangular shaped slot (31) is positioned at immediately below described 5th rectangular shaped slot (103), and described first metal micro-strip paster (101) and described second metal micro-strip paster (102) are symmetrical arranged along described 5th rectangular shaped slot (103).
6. small size wideband patch antenna according to claim 5, it is characterized in that: described metal micro-strip paster (1) is square, its length of side is L, described metal ground plate (3) is square, its length of side is G, and the flute length of described 6th rectangular shaped slot (31) is L12, wherein, G>L, L12=0.8 ~ 1.2L.
7. small size wideband patch antenna according to claim 1, it is characterized in that: described first metal micro-strip paster (101) is provided with coaxial feed point (41), described metal ground plate (3) is provided with coaxial connection mouth (43), described plated-through hole (2) aperture be positioned on described first metal micro-strip paster (101) is the first rectangular metal aperture (21), described plated-through hole (2) aperture be positioned on described metal ground plate (3) is the second rectangular metal aperture (22), described first rectangular metal aperture (21) and described first rectangular shaped slot (191), the extended line of the second rectangular shaped slot (192) intersects, described metal micro-strip paster (1) is square, its length of side is L, the flute length in described first rectangular metal aperture (21) is L9, wherein, L9=0.2 ~ 0.6L.
8. small size wideband patch antenna according to claim 1, it is characterized in that: described metal micro-strip paster (1) is square, its length of side is L, described first rectangular shaped slot (191), the second rectangular shaped slot (192), the 3rd rectangular shaped slot (193) and the 4th rectangular shaped slot (194) are all equal along the flute length to angular direction of described metal micro-strip paster (1), and be L13, wherein, L13=0.2 ~ 0.5L.
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| CN201510366268.1A CN104993229A (en) | 2015-06-26 | 2015-06-26 | Small-size broadband patch antenna |
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| CN201510366268.1A CN104993229A (en) | 2015-06-26 | 2015-06-26 | Small-size broadband patch antenna |
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|---|---|---|---|---|
| EP1073143A1 (en) * | 1999-07-30 | 2001-01-31 | France Telecom | Dual polarisation printed antenna and corresponding array |
| US20050162326A1 (en) * | 2003-01-23 | 2005-07-28 | Pierre Steyn | Antenna |
| CN102820534A (en) * | 2011-06-09 | 2012-12-12 | 香港城市大学深圳研究院 | Broadband circular polarization patch antenna |
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2015
- 2015-06-26 CN CN201510366268.1A patent/CN104993229A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1073143A1 (en) * | 1999-07-30 | 2001-01-31 | France Telecom | Dual polarisation printed antenna and corresponding array |
| US20050162326A1 (en) * | 2003-01-23 | 2005-07-28 | Pierre Steyn | Antenna |
| CN102820534A (en) * | 2011-06-09 | 2012-12-12 | 香港城市大学深圳研究院 | Broadband circular polarization patch antenna |
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Application publication date: 20151021 |