CN202977719U - Circular polarization ceramic antenna based on stripline orthogonal feed - Google Patents
Circular polarization ceramic antenna based on stripline orthogonal feed Download PDFInfo
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- CN202977719U CN202977719U CN 201220617693 CN201220617693U CN202977719U CN 202977719 U CN202977719 U CN 202977719U CN 201220617693 CN201220617693 CN 201220617693 CN 201220617693 U CN201220617693 U CN 201220617693U CN 202977719 U CN202977719 U CN 202977719U
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- Prior art keywords
- strip line
- feed
- dielectric substrate
- metal
- circular polarization
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- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 230000010287 polarization Effects 0.000 title claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910052627 muscovite Inorganic materials 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
The utility model discloses a circular polarization ceramic antenna based on strip line orthogonal feed, which comprises an upper radiation patch, an upper ceramic substrate, a lower feed network, a metal feed probe and an SMA coaxial connector which are sequentially fixed and superposed from top to bottom, wherein the upper radiation patch is a square annular antenna with a hollow middle part; the lower layer feed network consists of a lower layer dielectric substrate, metal grounding layers attached to the upper surface and the lower surface of the lower layer dielectric substrate and metal feed strip lines in the middle of the lower layer dielectric substrate; the metal feed probe directly feeds power to the upper radiation patch through a metal grounding layer on the upper surface of the lower dielectric substrate; the SMA coaxial connector is fixed on the back surface of the metal grounding layer on the lower surface of the lower dielectric substrate and connected with the input end of the metal feed strip line. The utility model discloses a ceramic dielectric substrate and annular radiation paster, the effectual volume that reduces the antenna has expanded the beam width of antenna to good antenna gain has.
Description
Technical field
The utility model relates to satellite navigation and positioning antenna, specifically a kind of circular polarization ceramic antenna based on the strip line orthogonal feed.
Background technology
The satellite navigation industry is the national strategy new high-tech industry, and its application prospect is boundless, is after cellular mobile communication and the Internet, and the information industry that global evolution is the fastest has become the new growth point of global IT economy.The satellite navigation industry of China is just entering the crucial moment of industrialization fast development, and expectation will form the set of the GPS (Global Position System) of GPS, GLONASS, GALILEO and Beidou satellite navigation system fusion in 5 years to 10 years.
Along with the development of each navigation system, multisystem and deposit, the multimodality fusion paces further accelerate, the epoch of single gps system becoming multisystem and deposit, compatible GPS (Global Position System) epoch.Therefore, exploitation is the application technology of compatible above-mentioned satellite navigation system simultaneously, realizes that multimode is compatible, is the inexorable trend of satellite navigation industry development.
The antenna form that is applied to the satellite navigation system terminal mainly contains doublet antenna, four-arm spiral antenna and medium resonator antenna, the shortcoming such as still, these antenna form exists that volume is excessive, complex structure, application are immature.Micro-strip paster antenna because of have volume little, can be conformal, flexible design, be easy to make, cost is low, be convenient to obtain the advantage such as circular polarization, becomes present navigation system application one of circular polarized antenna the most widely.Two kinds of feed forms of SF single feed and duplex feeding are arranged usually, and the SF single feed structure is comparatively simple, the cumulative volume of energy relative decrease antenna.But the circular polarization bandwidth is narrower, and when occurrence frequency was offset, its axial ratio performance sharply descended.And the duplex feeding structure is comparatively complicated, compact Antenna Design aspect, and the coupling between its feeding network and antenna obviously strengthens, and design and processing and debugging be difficulty comparatively, is difficult to reach the antenna performance index request of regulation.
The utility model content
The purpose of this utility model is, overcome the problems referred to above of the prior art, a kind of circular polarization ceramic antenna based on the strip line orthogonal feed is provided, realize the performances such as good impedance bandwidth, axial ratio bandwidth and high-gain, have in addition miniaturization, compact conformation, be convenient to the characteristics such as processing and application, can work in simultaneously B1 frequency range (1561.098MHz), the L1 frequency range (1575.42MHz) of the gps system of the U.S. and a plurality of satellite navigation systems such as L1 frequency range (1607MHz) of Muscovite GLONASS of the Chinese Big Dipper two generations system.
The technical scheme that the utility model adopts is:
A kind of circular polarization ceramic antenna based on the strip line orthogonal feed, it is characterized in that: include and fix successively from top to bottom stacked upper strata radiation patch (1), upper strata ceramic substrate (2), lower floor's feeding network (4) and metal feed probes (5), SMA coaxial fitting (6), described upper strata radiation patch (1) is the middle square annular antenna that hollows out; Described lower floor feeding network (4) is comprised of layer dielectric substrate (3), the metal ground plane of upper and lower surface that is attached to layer dielectric substrate (3) and the metal feed strip line in the middle of the layer dielectric substrate (3); Described metal feed probes (5) is passed the metal ground plane of upper surface of layer dielectric substrate (3) directly to upper strata radiation patch feed; Described SMA coaxial fitting (6) is fixed in the back side of metal ground plane of the lower surface of layer dielectric substrate (3), is connected with metal feed strip line input.
Described circular polarization ceramic antenna based on the strip line orthogonal feed, it is characterized in that: described upper strata ceramic substrate (2) adopts the ceramic powder of high-k, layer dielectric substrate (3) adopts the little band plate of complex media of high dielectric constant, and the dielectric constant of upper strata ceramic substrate (2) is higher than the dielectric constant of layer dielectric substrate (3).
Described circular polarization ceramic antenna based on the strip line orthogonal feed is characterized in that: described upper strata radiation patch (1) is for covering copper foil.
Described circular polarization ceramic antenna based on the strip line orthogonal feed, it is characterized in that: described metal feed strip line is annular coupled structure, be comprised of 50 Ω branch strip lines, low-resistance strip line, high resistant strip line and Chip-R (7), increase rate equates, the two-way current signal of 90 ° of phase phasic differences.
Described circular polarization ceramic antenna based on the strip line orthogonal feed is characterized in that: described metal feed probes (5) links together upper strata radiation patch (1) and feed strip line.
Described circular polarization ceramic antenna based on the strip line orthogonal feed, it is characterized in that: have circular gap on the metal ground plane of the upper surface of described medium substrate (3), the circular gap size of the metal ground plane of the upper surface of the medium substrate (3) that metal probe (5) passes can play the effect of regulating impedance matching.
The utility model has the advantages that:
The utility model adopts ceramic dielectric substrate and ring radiation paster, has effectively reduced the volume of antenna, has expanded the beamwidth of antenna, and has had good antenna gain.
Description of drawings
Fig. 1 is the structural representation of the circular polarization ceramic antenna based on the strip line orthogonal feed of the present utility model.
Fig. 2 is the schematic diagram of antenna structure layer of the present utility model.
Fig. 3 is the schematic diagram of feeding network structure sheaf of the present utility model.
Embodiment
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described by embodiment, but protection range of the present utility model is not limited to following execution mode.
A kind of circular polarization ceramic antenna based on the strip line orthogonal feed, comprise upper strata radiation patch 1, upper strata ceramic substrate 2, the little belt substrate 3 of lower floor, lower floor's feeding network 4, metal feed probes 5 and SMA coaxial fitting 6, upper strata radiation patch 1 is the middle square annular antenna that hollows out; Lower floor's feeding network 4 is comprised of medium substrate 3, the metal ground plane and the metal feed strip lines in the middle of medium substrate 3 that are attached to the upper and lower surface of medium substrate 3, metal feed strip line adopts annular coupled structure form, formed by 50 Ω branch strip lines, low-resistance strip line, high resistant strip line and Chip-R 7, realize merit minute phase shift function, SMA coaxial fitting 6 is fixed in the back side of metal ground plane of the lower surface of medium substrate 3, is connected with metal feed strip line input.
The square structure form that hollows out in the middle of upper strata side's ring radiation paster 1 adopts, in it, length of side is L
in, the outer length of side is L
out, the average length of side (L of side's ring radiation patch
in+ L
outThe dielectric constant of)/2 and upper layer medium substrate 2 determines the resonance frequency of antenna together, and its specific formula for calculation is
F in formula
cBe the resonance frequency of antenna, to a plurality of navigation system of the L1 frequency range of the L1 frequency range that works in simultaneously the Chinese Big Dipper two generations B1 frequency range, GPS System in USA and Muscovite GLONASS, the desirable f of its operating frequency
c=1575MHz.Metal feed probes 5 is passed the metal ground plane of the upper surface of medium substrate 3, and directly to upper strata radiation patch 1 feed, the circular gap size of the metal ground plane of the upper surface of medium substrate 3 can play the effect of regulating impedance matching.
Lower floor's feeding network 4 is comprised of medium substrate 3, the metal ground plane and the metal feed strip lines in the middle of medium substrate 3 that are attached to the upper and lower surface of medium substrate 3.Metal feed strip line adopts annular coupled structure form, is comprised of 50 Ω branch strip lines, low-resistance strip line, high resistant strip line and Chip-R 7.The live width of low-resistance strip line is about 2 times of live width of high resistant strip line, 90 °, interval order is linked to be loop configuration, connect 50 Ω branch strip lines at its tie point place as input port and two output ports, at the soldering surface mounted resistance 7 of its isolated port branch line terminal, thereby constant amplitude, 90 ° of phase shift function in working frequency range have been guaranteed, expand the axial ratio bandwidth of antenna, improved the circular polarization performance of antenna.
Claims (6)
1. circular polarization ceramic antenna based on the strip line orthogonal feed, it is characterized in that: include and fix successively from top to bottom stacked upper strata radiation patch (1), upper strata ceramic substrate (2), lower floor's feeding network (4) and metal feed probes (5), SMA coaxial fitting (6), described upper strata radiation patch (1) is the middle square annular antenna that hollows out; Described lower floor feeding network (4) is comprised of layer dielectric substrate (3), the metal ground plane of upper and lower surface that is attached to layer dielectric substrate (3) and the metal feed strip line in the middle of the layer dielectric substrate (3); Described metal feed probes (5) is passed the metal ground plane of upper surface of layer dielectric substrate (3) directly to upper strata radiation patch feed; Described SMA coaxial fitting (6) is fixed in the back side of metal ground plane of the lower surface of layer dielectric substrate (3), is connected with metal feed strip line input.
2. the circular polarization ceramic antenna based on the strip line orthogonal feed according to claim 1, it is characterized in that: described upper strata ceramic substrate (2) adopts the ceramic powder of high-k, layer dielectric substrate (3) adopts the little band plate of complex media of high dielectric constant, and the dielectric constant of upper strata ceramic substrate (2) is higher than the dielectric constant of layer dielectric substrate (3).
3. the circular polarization ceramic antenna based on the strip line orthogonal feed according to claim 1, it is characterized in that: described upper strata radiation patch (1) is for covering copper foil.
4. the circular polarization ceramic antenna based on the strip line orthogonal feed according to claim 1, it is characterized in that: described metal feed strip line is annular coupled structure, is comprised of 50 Ω branch strip lines, low-resistance strip line, high resistant strip line and Chip-R (7).
5. the circular polarization ceramic antenna based on the strip line orthogonal feed according to claim 1 is characterized in that: described metal feed probes (5) links together upper strata radiation patch (1) and feed strip line.
6. the circular polarization ceramic antenna based on the strip line orthogonal feed according to claim 1, is characterized in that: have circular gap on the metal ground plane of the upper surface of described medium substrate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617693 CN202977719U (en) | 2012-11-20 | 2012-11-20 | Circular polarization ceramic antenna based on stripline orthogonal feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617693 CN202977719U (en) | 2012-11-20 | 2012-11-20 | Circular polarization ceramic antenna based on stripline orthogonal feed |
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| Publication Number | Publication Date |
|---|---|
| CN202977719U true CN202977719U (en) | 2013-06-05 |
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| CN 201220617693 Expired - Fee Related CN202977719U (en) | 2012-11-20 | 2012-11-20 | Circular polarization ceramic antenna based on stripline orthogonal feed |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112903A (en) * | 2014-06-26 | 2014-10-22 | 西安空间无线电技术研究所 | Microstrip antenna using parasitical feed metal columns |
| CN105720364A (en) * | 2016-04-06 | 2016-06-29 | 华南理工大学 | Dual-polarized filter antenna with high selectivity and low cross polarization |
| CN109193141A (en) * | 2018-08-31 | 2019-01-11 | 天津大学 | A kind of miniaturization telemetering antenna applied to military equipment |
| CN109524778A (en) * | 2018-10-31 | 2019-03-26 | 广东曼克维通信科技有限公司 | Double-fed circularly polarized antenna |
| CN109687133A (en) * | 2019-01-08 | 2019-04-26 | 国网福建省电力有限公司南平供电公司 | A kind of miniaturization big-dipper satellite terminal antenna |
| CN109792104A (en) * | 2016-09-15 | 2019-05-21 | 索尼移动通讯有限公司 | Antenna in the protrusion of multi-layer ceramics based structures |
| CN111786096A (en) * | 2019-04-03 | 2020-10-16 | 北京小米移动软件有限公司 | Antenna and electronic equipment |
| CN112042055A (en) * | 2018-05-04 | 2020-12-04 | 瑞典爱立信有限公司 | Cavity-backed antenna unit and array antenna device |
-
2012
- 2012-11-20 CN CN 201220617693 patent/CN202977719U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112903A (en) * | 2014-06-26 | 2014-10-22 | 西安空间无线电技术研究所 | Microstrip antenna using parasitical feed metal columns |
| CN105720364A (en) * | 2016-04-06 | 2016-06-29 | 华南理工大学 | Dual-polarized filter antenna with high selectivity and low cross polarization |
| CN105720364B (en) * | 2016-04-06 | 2019-03-05 | 华南理工大学 | It is a kind of with highly selective and low-cross polarization dual polarization filter antenna |
| US11005156B2 (en) | 2016-09-15 | 2021-05-11 | Sony Mobile Communications Inc. | Antenna on protrusion of multi-layer ceramic-based structure |
| CN109792104A (en) * | 2016-09-15 | 2019-05-21 | 索尼移动通讯有限公司 | Antenna in the protrusion of multi-layer ceramics based structures |
| CN109792104B (en) * | 2016-09-15 | 2021-09-14 | 索尼移动通讯有限公司 | Antenna device, antenna assembly and communication device |
| US11552411B2 (en) | 2018-05-04 | 2023-01-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Cavity-backed antenna element and array antenna arrangement |
| CN112042055B (en) * | 2018-05-04 | 2022-01-25 | 瑞典爱立信有限公司 | Cavity-backed antenna unit and array antenna device |
| CN112042055A (en) * | 2018-05-04 | 2020-12-04 | 瑞典爱立信有限公司 | Cavity-backed antenna unit and array antenna device |
| CN109193141A (en) * | 2018-08-31 | 2019-01-11 | 天津大学 | A kind of miniaturization telemetering antenna applied to military equipment |
| CN109524778A (en) * | 2018-10-31 | 2019-03-26 | 广东曼克维通信科技有限公司 | Double-fed circularly polarized antenna |
| CN109524778B (en) * | 2018-10-31 | 2020-08-25 | 广东曼克维通信科技有限公司 | Double-fed circularly polarized antenna |
| CN109687133A (en) * | 2019-01-08 | 2019-04-26 | 国网福建省电力有限公司南平供电公司 | A kind of miniaturization big-dipper satellite terminal antenna |
| CN109687133B (en) * | 2019-01-08 | 2024-02-20 | 国网福建省电力有限公司南平供电公司 | Miniaturized big dipper satellite terminal antenna |
| CN111786096A (en) * | 2019-04-03 | 2020-10-16 | 北京小米移动软件有限公司 | Antenna and electronic equipment |
| CN111786096B (en) * | 2019-04-03 | 2023-02-21 | 北京小米移动软件有限公司 | Antenna and electronic equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |