CN206180103U - Miniaturized three frequency dual circular polarization antennas - Google Patents

Miniaturized three frequency dual circular polarization antennas Download PDF

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Publication number
CN206180103U
CN206180103U CN201621166726.3U CN201621166726U CN206180103U CN 206180103 U CN206180103 U CN 206180103U CN 201621166726 U CN201621166726 U CN 201621166726U CN 206180103 U CN206180103 U CN 206180103U
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China
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short circuit
micro
antenna
middle level
microband paste
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CN201621166726.3U
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Chinese (zh)
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李运志
贾蕾
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Anhui Sun Create Electronic Co Ltd
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Anhui Sun Create Electronic Co Ltd
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Abstract

The utility model belongs to the technical field of communication and navigation, concretely relates to miniaturized three frequency dual circular polarization antennas. This antenna is at coaxial fixing hole and the fastening bolt of being provided with of upper microstrip patch antenna, middle level microstrip patch antenna, the microstrip antenna of lower floor and bottom feed network's vertical central line department, the axis in three group's first short circuit metallization via holes and first feed hole all is in and uses fixing hole axis circumference equipartition just on as the same face of cylinder in axle center, middle level microstrip paster department arranges the second distributing point, and the axis in three groups second short circuit metallization via hole and second feed hole all is in and uses fixing hole axis circumference equipartition just on as the same face of cylinder in axle center, the aperture of first short circuit metallization via hole equals first medium cover external diameter, second short circuit metallization via hole aperture equals second medium cover external diameter. The utility model discloses can do and guarantee antenna body long -pending miniaturization and light -dutyization demand when guarantee good impedance bandwidth and axial ratio bandwidth and high -gain performance.

Description

One kind miniaturization three-frequency dual-circle polarization antenna
Technical field
The utility model belongs to communication and field of navigation technology, and in particular to one kind miniaturization three-frequency dual-circle polarization antenna.
Background technology
At present, can multiband work antenna be widely used in as navigation system receiver, communication station transmitting-receiving be total to In the antenna of the radar worked with antenna, frequency hopping and communication equipment and some frequency agilities and polarization agile.Circular polarized antenna In being even more widely used in the fields such as receiver of satellite navigation system.As the fast development of Satellite Navigation Technique is answered with extensive With the highly desirable corresponding antenna of people possesses broad beam, high-gain, circular polarisation, multifrequency point work, miniaturization, lightness etc. Series of advantages.Now, multi-frequency polarized antenna is due to mainly using the making of multi-disc method, namely using different many of resonant frequency Individual paster is stacked on the same substrate, generally larger paster is put in into lower floor and less paster is laminated on upper strata;Meanwhile, for the company of avoiding The feed probes for connecing each layer paster produce the interference situation that works each other, need around each power feed hole for feed probes insertion Around the tiny metallization via of a circle that gathers, under isolation, enter so as to by paster at the circle metallization via inner ring And prevent the coupling influence between each feed probes.However, it has been found that because per layer with feed probes during actual fabrication Paster is required for outside power feed hole the corresponding circle of arrangement one metallization via, and this causes not only to need the feed at current layer paster Hole periphery reserves the region worn for metallization via, while the paster of the bottom must also possess enough regions for holding Receive and run through and next thickly dotted metallization via by upper strata or even the stacking of upper strata paster, this is obviously extremely disadvantageous in mesh The miniature requirement of front antenna volume.
The content of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of rational in infrastructure and reliably can answer For the miniaturization three-frequency dual-circle polarization antenna in Big Dipper handheld device, it can ensure good impedance bandwidth and axial ratio bandwidth And while high-gain performance, also can ensure that miniaturization and the lightness demand of antenna volume.
For achieving the above object, the utility model employs technical scheme below:
One kind miniaturization three-frequency dual-circle polarization antenna, it is characterised in that:This antenna includes from top to bottom and successively platy layer Upper strata microband paste, upper layer medium substrate, middle level microband paste, middle level medium substrate, lower floor's microband paste, lower floor that laying up is put Medium substrate and bottom feeding network;Wherein, upper strata microband paste constitutes the upper strata for working in S frequencies with upper layer medium substrate Micro-strip paster antenna, middle level microband paste constitutes the middle level micro-strip paster antenna for working in L frequencies, lower floor with middle level medium substrate Microband paste constitutes the lower floor's micro-strip paster antenna for working in B3 frequencies with layer dielectric substrate;On upper strata micro-strip paster antenna, Coaxial being provided with of vertical centerline of middle level micro-strip paster antenna, lower layer of microstrip antenna and bottom feeding network fixes logical Hole, fastening bolt forms bolt immovable fitting through above-mentioned fixed via;
The first distributing point is arranged at the microband paste of upper strata, by the vertical upper strata microband paste place plane of the first distributing point Sequentially pass through upper layer medium substrate, middle level microband paste, middle level medium substrate, lower floor's microband paste, layer dielectric substrate to arrange There is the first power feed hole, the first power feed hole is metallization via, and the first feed probes are coaxially arranged in the first power feed hole, the first feedback The two ends of electric probe connect respectively the first distributing point and the output interface at bottom feeding network;This antenna also includes running through First short circuit metallic via of middle level micro-strip paster antenna and lower floor's micro-strip paster antenna, the first short circuit metallic via is three The axis of group, the first short circuit metallic via and the first power feed hole is in the same face of cylinder with fixed via axis as axle center Go up and the first short circuit metallic via is uniform along above-mentioned cylindrical surface peripheral with the axis of the first power feed hole;
The second distributing point is arranged at the microband paste of middle level, by the vertical upper strata microband paste place plane of the second distributing point Sequentially pass through lower floor's microband paste, layer dielectric substrate and be provided with the second power feed hole, the second power feed hole is metallization via, second Feed probes are coaxially arranged in the second power feed hole, and the two ends of the second feed probes connect respectively the second distributing point and positioned at bottom Output interface at feeding network;This antenna also includes the second short circuit metallic via through lower floor's micro-strip paster antenna, the Two short circuit metallic vias are three groups, and the axis of the second short circuit metallic via and the second power feed hole is in fixed via axle Line is on the same face of cylinder in axle center and the axis of the second short circuit metallic via and the second power feed hole is along above-mentioned cylindrical surface peripheral Uniformly;
The 3rd distributing point is arranged at lower floor's microband paste, the 3rd feed probes connect the 3rd feedback through layer dielectric substrate Electricity point and the output interface at bottom feeding network;
In first power feed hole positioned at middle level micro-strip paster antenna and a sector hole road of lower floor's micro-strip paster antenna Be provided with between the first feed probes and isolate mutual first medium set, in second power feed hole positioned at lower floor's microband paste One sector hole road of antenna isolates mutual second medium set with being provided between the second feed probes;First short circuit metallic via Aperture is equal to first medium and covers external diameter;Second short circuit metallic via aperture is equal to second medium and covers external diameter.
The upper strata microband paste, upper layer medium substrate, middle level microband paste, middle level medium substrate, lower floor's microband paste, Layer dielectric substrate and bottom feeding network profile are square sheets platy structure;At lower floor's micro-strip paster antenna Along fixed via axis around each adjacent first short circuit metallic via, the first power feed hole, the second short circuit metallic mistake being distributed To each other away from equalization between hole, the second power feed hole.
The relative angle end of the upper strata microband paste two is respectively provided with corner cut;At wherein two opposite side of the middle level microband paste pair Arrangement is claimed to be convexly equipped with rectangular microstrip minor matters;T-shaped gap minor matters are arranged at four sides of lower floor's microband paste.
The bottom feeding network includes from top to bottom stacking gradually metal ground plane, underlying dielectric substrate, the ring of arrangement Shaped microstrip line electric bridge and the output interface being arranged at annular microstrip line electric bridge;The first short circuit metallic via, first Power feed hole, the second short circuit metallic via, the second power feed hole and fixed via are through above-mentioned metal ground plane and bottom Medium substrate;It surround along four straight flanges of annular microstrip line electric bridge and is densely covered with the metallization via of a circle the 3rd, the 3rd metal Change the top connection metal ground plane of via.
The dielectric constant of the upper layer medium substrate is 10.2, and long is 22mm × 22mm with wide size, and plate body thickness is 2mm;The dielectric constant of middle level medium substrate is 10.2, and long is 31mm × 31mm with wide size, and plate body thickness is 4mm;Lower floor is situated between The dielectric constant of matter substrate is 16, and long is 34mm × 34mm with wide size, and plate body thickness is 6mm;The dielectric of underlying dielectric substrate Constant is 9, and long is 35mm × 35mm with wide size, and plate body thickness is 0.508mm;A diameter of 0.9mm of each feed probes, The aperture of the first short circuit metallic via and the second short circuit metallic via is 3mm, and the first feed probes are away from fixed via axis Spacing is 3.3mm, and the second feed probes are 3.5mm~4.3mm away from fixed via axis spacing, and the 3rd feed probes are away from fixed logical Hole axle distance between centers of tracks is 6mm.
The beneficial effects of the utility model are:
1), the utility model by be laminated from top to bottom the upper strata micro-strip paster antenna of connection, middle level micro-strip paster antenna, Lower floor's micro-strip paster antenna and bottom feeding network are constituting Anneta module, and the fixing bolt arranged with center ensure that respectively Stacking fastening structure between person.During practical operation, upper strata micro-strip paster antenna corresponds to S frequencies, middle level micro-strip paster antenna pair Should be in L frequencies, and lower floor's micro-strip paster antenna corresponds to B3 frequencies, bottom feeding network is then provided needed for B3 frequency circular polarisation Feed circuit, it is achieved thereby that Beidou II B3 frequency and Big Dipper generation L frequency, the signal receiving function of S frequencies.This practicality is new Type can examine using high-k, low dielectric loss ceramic material substrate come tentatively realize miniaturization;And at the same time, utilize It is unique along 90 ° of three circumferentially distributed road the first short circuit metallic vias of fixed via axis and three road the second short circuit metallic mistakes Hole, so as to play the function of eliminating the coupling influence of each feed probes in corresponding first power feed hole and the second power feed hole.Relatively Tradition must be around each power feed hole for the complicated coupling shielding mode of circumferential densely covered around metallization via, this Utility model is only with three groups of short circuit metallic vias, you can ensure the reliably working of corresponding feed probes, not only causes equipment Functional reliability be effectively guaranteed, simultaneously because the reduction of the number of perforations that metallized so that the micro-strip patch of less area Piece can ensure being drilled with for each metallization via, this miniaturization and lightness demand obviously beneficial to current antenna.
To sum up, interport isolation is high, each frequency range circular polarisation gain performance is stablized for the utility model transmitting-receiving;It can ensure While good impedance bandwidth and axial ratio bandwidth and high-gain performance, miniaturization and the lightness of antenna volume is also can ensure that Demand, can be used for the reception and transmitting of Big Dipper handheld device satellite-signal.
2), during practical operation, in the first power feed hole positioned at middle level micro-strip paster antenna and lower floor's micro-strip paster antenna and Medium socket can all be arranged in the second power feed hole at lower floor's micro-strip paster antenna to fill corresponding power feed hole with corresponding feed Gap between probe;Now, the aperture for being considered as corresponding short circuit metallic via is equal to the external diameter of respective media set.And At lower floor's micro-strip paster antenna along fixed via axis around distribution each adjacent first short circuit metallic via, first To each other away from equalization between power feed hole, the second short circuit metallic via, the second power feed hole, this is reflected at layer dielectric substrate When, it can be seen that equally distributed eight borehole structures are presented at the medium substrate plate face.The impartial each Kong Lu of above-mentioned spacing, most The work interference reduced between each of big degree, this functional reliability and stability to lift structure plays favourable shadow Ring.
3), upper strata microband paste be square structure form, along its diagonal corner cut, and be contemplated that with diagonal The linear position that 45 ° of angle arranges distributing point, so as to realize that right-handed circular polarization works.Middle level microband paste is square structure shape Formula, at its symmetrical edge short micro-band branch minor matters are loaded, and arrange distributing point on the diagonal, realize left-hand circular polarization work Make.The medium substrate of bottom feeding network makes the metallization via and medium substrate using the 3rd fine and closely woven metallization via Metal bottom up and down be connected, playing improves network standing wave and width distributed mutually, it is achieved thereby that feeding network and antenna element is good Isolate purpose well.
Description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is top view of Fig. 1 structures after the lamellar body horizonally split of upper strata microband paste;
Fig. 3 is top view of Fig. 1 structures after the lamellar body horizonally split of middle level microband paste;
Fig. 4 is top view of Fig. 1 structures after the lamellar body horizonally split of lower floor's microband paste;
Fig. 5 is the upward view of Fig. 1 structures.
Each label is as follows with each component names corresponding relation of the present utility model in accompanying drawing:
A- fixed vias
11- upper stratas microband paste 12- upper layer medium substrates
10a- the first power feed hole 10b- the first feed probes 10c- the first short circuit metallic vias
21- middle levels microband paste 22- middle levels medium substrate 23- rectangular microstrip minor matters
20a- the second power feed hole 20b- the second feed probes 20c- the second short circuit metallic vias
31- lower floors microband paste 32- layer dielectric substrate 33-T types gap minor matters
The feed probes of 30a- the 3rd
41- metal ground plane 42- underlying dielectric substrates 43- annular microstrip line electric bridges
The metallization via 50- first medium set 60- second medium sets of 40a- the 3rd
Specific embodiment
For ease of understanding, it is embodied as being retouched below structure and workflow work to of the present utility model here in connection with accompanying drawing State:
Concrete structure of the present utility model, as Figure 1-5, it include stacked patch antenna unit, bottom feeding network, Multigroup feed probes, multigroup metallization via and one are used to fix the fixing screws of above-mentioned antenna element and feeding network.Layer Folded patch antenna element includes that the upper strata micro-strip paster antenna, middle level micro-strip paster antenna and the lower floor that are sequentially overlapped from top to bottom are micro- Band paster antenna, and from top to bottom radiation patch area is incrementally increased, medium substrate is progressively thickened.Upper strata micro-strip paster antenna bag Upper strata microband paste 11 and upper layer medium substrate 21 are included, upper strata microband paste 11 is square laminated structure and cuts diagonal.Middle level Micro-strip paster antenna includes middle level microband paste 21 and middle level medium substrate 22, and middle level microband paste 21 is square laminated structure And wherein an opposite side loads rectangular microstrip minor matters 23.Lower floor's micro-strip paster antenna includes that lower floor's microband paste 31 and lower floor are situated between Matter substrate 32, lower floor's microband paste 31 is square laminated structure and T-shaped gap minor matters 33 is loaded at four sides.Bottom transmission network Network is including underlying dielectric substrate 42, the metal ground plane 41 being attached at the upper surface of underlying dielectric substrate 42, in underlying dielectric base Annular microstrip line electric bridge 43 and output interface at the lower surface of plate 42.Annular microstrip line electric bridge 43 by 50 Ω branches microstrip lines, Low-resistance microstrip line, high resistant microstrip line and 50 ohm chip resistors composition.It is thin a circle to be arranged around annular microstrip line electric bridge 43 Close 3rd metallization via 40a, and each the 3rd metallization via 40a vertical being connected with metal ground plane 41 upwards is made, So as to improve the Isolated Shield effect between antenna element and feeding network.Feed probes include the first feed probes 10b, the second feedback Electric probe 20b and the 3rd feed probes 30a.First feed probes 10b top is connected with the distributing point of upper strata microband paste 11, and Sequentially pass through upper layer medium substrate 12, middle level micro-strip paster antenna, lower floor's micro-strip paster antenna and bottom feeding network, and with bottom The output interface of layer feeding network is connected;Additionally, the first feed probes 10b and middle level micro-strip paster antenna, lower floor's microband paste The metal ground plane 41 and underlying dielectric substrate 42 of antenna and bottom feeding network is not contacted.Second feed probes 20b top It is connected with the distributing point of middle level microband paste 21, and sequentially passes through middle level medium substrate 22, lower floor's micro-strip paster antenna and bottom Feeding network, and be connected with the output interface of bottom feeding network;Additionally, the second feed probes 20b and lower floor's microband paste day The metal ground plane 41 and underlying dielectric substrate 42 of line and bottom feeding network is not contacted.3rd feed probes 30a are actual to be set It is two when putting, its top is connected with the distributing point of lower floor microband paste 31, and sequentially passes through layer dielectric substrate 32 and bottom Feeding network is simultaneously connected with corresponding output interface.
As emphasis of the present utility model, as shown in Figure 2-5, in original power feed hole for being available for feed probes to wear Outward, the utility model there also is provided short circuit metallic via.Specifically, for first worn for the first feed probes 10b Power feed hole 10a, three group of first short circuit gold of the setting coaxially run through on middle level micro-strip paster antenna and lower floor's micro-strip paster antenna Categoryization via 10c, and three group of first short circuit metallic via 10c be co-located at the first power feed hole 10a and be with fixed via a On the same face of cylinder of axis, at the same three groups of short circuit metallic vias and the first power feed hole 10a positioned at middle level microband paste day The duct of line and lower floor's micro-strip paster antenna is presented each other 90 degree of angle distributions, the final uniformity for ensureing each spacing.In the same manner, For the second power feed hole 20a worn for the second feed probes 20b, what is equally coaxially run through on lower floor's micro-strip paster antenna sets Three group of second short circuit metallic via 20c is put, and three groups of short circuit metallic vias and the second power feed hole 20a are co-located at solid Determine on the same face of cylinder that through hole a is axis, while three group of second short circuit metallic via 20c and the second power feed hole 20a Duct is presented circumferential 90 degree of angles distribution at lower floor's micro-strip paster antenna.
In antenna element and the vertical position of center line of bottom feeding network, its function is successively to described fixing screws Through each layer microstrip antenna and bottom feeding network, so as to realize the fastening purpose between each.
Concrete operating principle of the present utility model is as follows:
The utility model using be laminated from top to bottom the upper strata micro-strip paster antenna of connection, middle level micro-strip paster antenna, under Layer micro-strip paster antenna and bottom feeding network composition Anneta module, using high-k, the ceramic material of low dielectric loss Substrate realizes miniaturization, and the superimposing technique using multilayer micro-strip paster antenna center superposition realizes multiple-frequency operation, so as to help In the isolation for improving each output port, realize Beidou II B3 frequency and Big Dipper generation L frequency, the signal of S frequencies are received.
Upper strata micro-strip paster antenna works in S frequencies, using single-point feedback mode.By square patch on the diagonal The form for cutting triangle realizes right-handed circular polarization, and signal is transferred to into the defeated of bottom feeding network by the first feed probes 10b Go out and tap into capable reception.
Middle level micro-strip paster antenna works in L frequencies, using single-point feedback on the diagonal.In two couple of square patch Brachyplast section is loaded at side and realizes left-hand circular polarization, signal is sent out by the interface of bottom feeding network by the second feed probes 20b It is shot out.
Lower floor's micro-strip paster antenna works in B3 frequencies, four sides of lower floor's microband paste 31 of lower floor's micro-strip paster antenna The T-shaped gap minor matters of place's loading, while arranging the first short circuit metallic via 10c and the second short circuit metallic at underlying dielectric substrate 42 Change via 20c, for eliminating the coupling influence of feed probes, be conducive to the further miniaturization of antenna.Bottom feed annular The offer B3 frequencies of electric bridge 43 realize the amplitude and phase place needed for circular polarisation, and it is micro- to be connected to lower floor by the 3rd feed probes 30a At distributing point with paster 31.
The utility model is operable with Beidou II B3 frequency and Big Dipper generation L frequency, S frequencies.During practical application, preferably The dielectric constant of upper layer medium substrate 21 is 10.2, and long is 22mm × 22mm with wide size, and plate body thickness is 2mm;Middle level medium The dielectric constant of substrate 22 is 10.2, and long is 31mm × 31mm with wide size, and plate body thickness is 4mm;Layer dielectric substrate 32 Dielectric constant is 16, and long is 34mm × 34mm with wide size, and plate body thickness is 6mm;The dielectric constant of underlying dielectric substrate 42 is 9, long is 35mm × 35mm with wide size, and plate body thickness is 0.508mm.A diameter of 0.9mm of the feed probes for being adopted, first The aperture of short circuit metallic via 10c and the second short circuit metallic via 20c is 3mm, and the first feed probes 10b are away from fixed via A axis spacings are 3.3mm, and the second feed probes 20b are 3.5mm~4.3mm away from fixed via a axis spacings, and the 3rd feed is visited Pin 30a is 6mm away from fixed via a axis spacings.First distributing point and same first short circuit metallic of the line of fixed via a axis Via 10c is perpendiculared to one another with the line of fixed via a axis, and in the same manner, the line of the second distributing point and fixed via a axis is with the Two short circuit metallic via 20c are perpendiculared to one another with the line of fixed via a axis.On the direction of parallel fixed via a axis Overlook, the line of preferably the second power feed hole 20a and fixed via a axis is with the first power feed hole 10a and fixed via a axis Line is presented 45 ° of angles.

Claims (5)

  1. It is 1. a kind of to minimize three-frequency dual-circle polarization antenna, it is characterised in that:This antenna includes that from top to bottom and successively sheet is laminated The upper strata microband paste (11) of arrangement, upper layer medium substrate (12), middle level microband paste (21), middle level medium substrate (22), under Layer microband paste (31), layer dielectric substrate (32) and bottom feeding network;Wherein, upper strata microband paste (11) is situated between with upper strata Matter substrate (12) constitutes the upper strata micro-strip paster antenna for working in S frequencies, middle level microband paste (21) and middle level medium substrate (22) the middle level micro-strip paster antenna for working in L frequencies is constituted, lower floor's microband paste (31) is constituted with layer dielectric substrate (32) Work in lower floor's micro-strip paster antenna of B3 frequencies;Micro-strip paster antenna, middle level micro-strip paster antenna, lower floor's micro-strip day on upper strata The vertical centerline of line and bottom feeding network it is coaxial be provided with fixed via (a), fastening bolt passes through above-mentioned fixation Through hole (a) forms bolt immovable fitting;
    Upper strata microband paste (11) place arranges the first distributing point, is located by the vertical upper strata microband paste (11) of the first distributing point flat Face and sequentially pass through upper layer medium substrate (12), middle level microband paste (21), middle level medium substrate (22), lower floor's microband paste (31), layer dielectric substrate (32) is provided with the first power feed hole (10a), and the first power feed hole (10a) is metallization via, the first feedback Electric probe (10b) is coaxially arranged in the first power feed hole (10a), and the two ends of the first feed probes (10b) connect respectively the first feedback Electricity point and the output interface at bottom feeding network;This antenna is also included through middle level micro-strip paster antenna and lower floor's micro-strip First short circuit metallic via (10c) of paster antenna, the first short circuit metallic via (10c) is three groups, the first short circuit metallic The axis for changing via and the first power feed hole (10a) is on the same face of cylinder with fixed via (a) axis as axle center and the One short circuit metallic via (10c) is uniform along above-mentioned cylindrical surface peripheral with the axis of the first power feed hole (10a);
    Middle level microband paste (21) place arranges the second distributing point, is located by the vertical upper strata microband paste (11) of the second distributing point flat Face and sequentially pass through lower floor's microband paste (31), layer dielectric substrate (32) and be provided with the second power feed hole (20a), the second power feed hole (20a) it is metallization via, the second feed probes (20b) are coaxially arranged in the second power feed hole (20a), the second feed probes (20b) two ends connect respectively the second distributing point and the output interface at bottom feeding network;This antenna also includes running through Second short circuit metallic via (20c) of lower floor's micro-strip paster antenna, the second short circuit metallic via (20c) be three groups, second The axis of short circuit metallic via and the second power feed hole (20a) is in the same cylinder with fixed via (a) axis as axle center On face and the second short circuit metallic via (20c) is uniform along above-mentioned cylindrical surface peripheral with the axis of the second power feed hole (20a);
    Lower floor's microband paste (31) place arranges the 3rd distributing point, and the 3rd feed probes (30a) are through layer dielectric substrate (32) Connect the 3rd distributing point and the output interface at bottom feeding network;
    On first power feed hole (10a) positioned at middle level micro-strip paster antenna and a sector hole road of lower floor's micro-strip paster antenna It is provided with between the first feed probes (10b) and isolates mutual first medium set (50), the position on second power feed hole (20a) Isolate mutual second medium set with being provided between the second feed probes (20b) in a sector hole road of lower floor's micro-strip paster antenna (60);The aperture of the first short circuit metallic via (10c) is equal to first medium set (50) external diameter;Second short circuit metallic via (20c) aperture is equal to second medium set (60) external diameter.
  2. 2. one kind according to claim 1 minimizes three-frequency dual-circle polarization antenna, it is characterised in that:The upper strata micro-strip patch Piece (11), upper layer medium substrate (12), middle level microband paste (21), middle level medium substrate (22), lower floor's microband paste (31), under Layer medium substrate (32) and bottom feeding network profile are square sheets platy structure;At lower floor's micro-strip paster antenna Along fixed via axis around distribution each adjacent first short circuit metallic via (10c), the first power feed hole (10a), second To each other away from equalization between short circuit metallic via (20c), the second power feed hole (20a).
  3. 3. one kind according to claim 2 minimizes three-frequency dual-circle polarization antenna, it is characterised in that:The upper strata micro-strip patch The relative angle end of piece (11) two is respectively provided with corner cut;It is arranged symmetrically at wherein two opposite side of the middle level microband paste (21) and is convexly equipped with square Shaped microstrip minor matters (23);T-shaped gap minor matters (33) are arranged at four sides of lower floor's microband paste (31).
  4. 4. the one kind according to Claims 2 or 3 minimizes three-frequency dual-circle polarization antenna, it is characterised in that:The bottom feedback Electric network includes from top to bottom stacking gradually metal ground plane (41), underlying dielectric substrate (42), the annular microstrip line electricity of arrangement Bridge (43) and it is arranged in the output interface at annular microstrip line electric bridge (43) place;The first short circuit metallic via (10c), One power feed hole (10a), the second short circuit metallic via (20c), the second power feed hole (20a) and fixed via (a) are through upper State metal ground plane (41) and underlying dielectric substrate (42);It surround along four straight flanges of annular microstrip line electric bridge (43) and is densely covered with Metallization via (40a) of one circle the 3rd, top connection metal ground plane (41) of the 3rd metallization via (40a).
  5. 5. one kind according to claim 4 minimizes three-frequency dual-circle polarization antenna, it is characterised in that:The top dielectric base The dielectric constant of plate (12) is 10.2, and long is 22mm × 22mm with wide size, and plate body thickness is 2mm;Middle level medium substrate (22) Dielectric constant be 10.2, long is 31mm × 31mm with wide size, and plate body thickness is 4mm;The dielectric of layer dielectric substrate (32) Constant is 16, and long is 34mm × 34mm with wide size, and plate body thickness is 6mm;The dielectric constant of underlying dielectric substrate (42) is 9, Long is 35mm × 35mm with wide size, and plate body thickness is 0.508mm;A diameter of 0.9mm of each feed probes, first is short-circuit The aperture of metallization via (10c) and the second short circuit metallic via (20c) is 3mm, and the first feed probes (10b) are away from fixed logical Hole (a) axis spacing is 3.3mm, and the second feed probes (20b) are 3.5mm~4.3mm away from fixed via (a) axis spacing, the Three feed probes (30a) are 6mm away from fixed via (a) axis spacing.
CN201621166726.3U 2016-11-01 2016-11-01 Miniaturized three frequency dual circular polarization antennas Expired - Fee Related CN206180103U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108808233A (en) * 2018-06-06 2018-11-13 深圳市深大唯同科技有限公司 A kind of high-gain broadband dual-polarized patch antenna
CN109390696A (en) * 2017-08-10 2019-02-26 佳邦科技股份有限公司 Portable electronic devices and its stack Anneta module
TWI714410B (en) * 2019-12-27 2020-12-21 和碩聯合科技股份有限公司 Antenna structure and single dual-polarization antenna array
CN112582791A (en) * 2020-11-13 2021-03-30 西安交通大学 Microstrip feed network structure containing quasi-coaxial structure
WO2023131375A1 (en) * 2022-01-04 2023-07-13 Continental Automotive Technologies GmbH Multi-layer patch antenna device and vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109390696A (en) * 2017-08-10 2019-02-26 佳邦科技股份有限公司 Portable electronic devices and its stack Anneta module
CN108808233A (en) * 2018-06-06 2018-11-13 深圳市深大唯同科技有限公司 A kind of high-gain broadband dual-polarized patch antenna
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