CN105356045A - Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna - Google Patents
Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna Download PDFInfo
- Publication number
- CN105356045A CN105356045A CN201510668571.7A CN201510668571A CN105356045A CN 105356045 A CN105356045 A CN 105356045A CN 201510668571 A CN201510668571 A CN 201510668571A CN 105356045 A CN105356045 A CN 105356045A
- Authority
- CN
- China
- Prior art keywords
- dielectric plate
- copper sheet
- layer
- satellite navigation
- circular copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052802 copper Inorganic materials 0.000 claims abstract description 55
- 239000010949 copper Substances 0.000 claims abstract description 55
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 19
- 230000005855 radiation Effects 0.000 claims abstract description 12
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 13
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention relates to a broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna, which comprises two layers of dielectric plates, two coupling round copper sheets and four grounding rectangular copper sheets, wherein an antenna radiation patch is arranged on the lower surface of the upper layer of dielectric plate; a grounding plate is arranged on the upper surface of the lower layer of dielectric plate; a feed network is arranged on the lower surface of the lower layer of dielectric plate; the upper layer of dielectric plate and the lower layer of dielectric plate are fixed through plastic screws; an air layer with a certain length is arranged between the upper layer of dielectric plate and the lower layer of dielectric plate; the coupling round copper sheets are arranged in the air layer and are parallel to the dielectric plates; a feed point is arranged at the circle center of each coupling round copper sheet; the feed points are connected with the feed network through feed probes; the four grounding rectangular copper sheets are respectively attached to the periphery of the antenna; and one side of each grounding rectangular copper sheet is connected with the grounding plate. The broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna has the advantages of low profile, large bandwidth, wide wave beam and low cost on the basis of dual-frequency characteristics and can be well applied to beidou navigation terminal equipment.
Description
Technical field
The present invention relates to the Big Dipper generation transmitting-receiving band satellite navigation antenna, particularly a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna.
Background technology
Beidou satellite navigation system is by the global positioning satellite of China's independent research and communication system, along with the progressively foundation of Beidou satellite navigation system and perfect, developing rapidly based on the location of Beidou satellite navigation system and the communication technology, penetrating into every field and be widely used in the related application such as military affairs, traffic, water conservancy, rescue and relief work.Some multifrequency antennas in the market adopt the design of stepped construction, and antenna section is comparatively large thus increase the volume of navigation terminal equipment; Most antenna adopts single-point feedback to there is the little shortcoming of axial ratio bandwidth; Large multiple antennas on the market does not consider the design of low elevation gain specially, and the wave beam of antenna is wide not.
Summary of the invention
In view of this, the object of the invention is to propose a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna, have section low, with roomy and that wave beam is wide advantage.
The present invention adopts following scheme to realize: a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna, specifically comprise top dielectric plate, layer dielectric plate, the circular copper sheet of first coupling, the second circular copper sheet of coupling and four grounded rectangle copper sheet, top dielectric plate is vertical corresponding up and down with the equal horizontal positioned of layer dielectric plate, the lower surface of top dielectric plate is provided with aerial radiation paster, the upper surface of layer dielectric plate is provided with ground plate, the lower surface of layer dielectric plate is provided with feeding network, top dielectric plate and layer dielectric plate are fixed by four plastic screw columns, the air layer of certain altitude is provided with between top dielectric plate and layer dielectric plate, the circular copper sheet of the first coupling circular copper sheet that is coupled with second to be arranged in described air layer and to be parallel to top dielectric plate and layer dielectric plate, the circular copper sheet of first coupling is equipped with distributing point with the second circle centre position being coupled circular copper sheet, described distributing point is connected with one end of the first feed probes and one end of the second feed probes respectively, and the other end of the first feed probes and the other end of the second feed probes are all connected with the distributing point in described feeding network, described four grounded rectangle copper sheet is attached at the surrounding of top dielectric plate and layer dielectric plate respectively, wherein all being connected with described ground plate on one side of described four grounded rectangle copper sheet, when antenna realizes circular polarization work, four rectangular patches induce the alternation induced current that phase place meets circular polarization demand respectively, its electromagnetic radiation produced is comparatively strong in antenna side surface direction, thus effectively improves the low elevation gain of antenna.
Further, top dielectric plate is of a size of 70mm × 70mm × 0.8mm, and the aerial radiation paster of described top dielectric plate lower surface is made up of nested square loop inside and outside two, and outer ring width is 3.8mm, inner ring width is 18.1mm, and inner ring is provided with 16 gap flutings.
Further, layer dielectric plate is of a size of 70mm × 70mm × 0.8mm, and the feeding network of described top dielectric plate lower surface is provided with four microstrip lines, 3dB electric bridge, S frequency range sub-miniature A connector and L frequency range sub-miniature A connector; One end of described four microstrip lines is connected to four pins of described 3dB electric bridge respectively, and the other end of described four microstrip lines is connected to described S frequency range sub-miniature A connector, L frequency range sub-miniature A connector, the other end of the first feed probes, the other end of the second feed probes respectively.
Further, the height of described air layer is 5.8mm.
Further, the circular copper sheet of described first coupling is 5.4mm with the second radius being coupled circular copper sheet, the circular copper sheet of the first coupling circular copper sheet that is coupled with second lays respectively on two center lines of described air layer, and all apart from the center 26.2mm of air layer.
Further, the area size of described four grounded rectangle copper sheet is 60.5mm × 11mm.
To sum up, antenna of the present invention adopts the nested paster structure of individual layer to realize two frequency ranges and covers, and greatly reduces the section height of antenna; Feeding classification adopts and loads rectangle copper sheet couple feed structure, adds the impedance bandwidth of antenna; Adopt 3dB electric bridge to realize different circular polarization working methods, and greatly increase the axial ratio bandwidth of antenna; Antenna surrounding attached to the copper sheet be connected with ground plate, and induced current during Antenna Operation on rectangle copper sheet produces electromagnetic radiation, adopts the method to increase the low elevation gain of each frequency of antenna; The air layer arranged between dielectric-slab in the present invention is of value to raising Antenna Operation efficiency, reduces material cost.
Compared with prior art, the present invention can be used for Big Dipper generation L frequency band signals and launch and the reception of S frequency band signals, realize location and the short message communication function of a Big Dipper generation, have that cost is low, efficiency is high, section is low, with roomy and that wave beam is wide advantage, can be advantageously applied to Beidou navigation terminal equipment.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention
Fig. 2 is top dielectric plate structure of the present invention and coupling rectangular copper sheet position view (vertical view).
Fig. 3 is layer dielectric plate structure schematic diagram (vertical view) of the present invention.
Fig. 4 is that inventive antenna is at low-frequency range stickogram.
Fig. 5 is that inventive antenna is at high band stickogram.
Fig. 6 is inventive antenna gain pattern when operating frequency is 1.616GHz and 2.492GHz.
primary clustering symbol description]
in figure:1 is top dielectric plate, and 2 is layer dielectric plate, and 3 is plastic screw column, 4 is ground connection rectangle copper sheet, and 5 is the circular copper sheet of the first coupling, and 6 is the first feed probes, 7 is the circular copper sheet of the second coupling, and 8 is the second feed probes, and 9 is L frequency range sub-miniature A connector, 10 is S frequency range sub-miniature A connector, and 11 is internal layer square ring-type radiation patch, and 12 is outer square ring-type radiation patch, 13 is 3dB electric bridge, and 14 is microstrip line a, and 15 is microstrip line b, 16 is microstrip line c, and 17 is microstrip line d.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1 to Figure 3, this example comprises top dielectric plate 1 and layer dielectric plate 2 is fixed by four plastic screw columns 3, and surrounding arranges four grounded rectangle copper sheet 4, and copper sheet is welded with ground plate by scolding tin; Certain thickness air layer is there is between two layer medium, and be provided with the circular copper sheet 5 of the first coupling and the circular copper sheet 7 of the second coupling, the be coupled center of circular copper sheet is distributing point, and the top of the first feed probes 6 and the second feed probes 8 is welded in the distributing point place of the circular copper sheet 5 of the first coupling and the circular copper sheet 7 of the second coupling respectively.The lower surface of top dielectric plate is provided with internal layer square ring-type radiation patch 11 and skin square ring-type radiation patch 12, by encouraging internal layer square ring-type radiation patch 11 and skin square ring-type radiation patch 12 to the circular copper sheet 5 of the first coupling and circular copper sheet 7 feed of the second coupling, make its radiated electromagnetic wave.The upper surface of layer dielectric plate 2 is ground plate, and lower surface is provided with feeding network, comprises four sections of microstrip lines, 14,15,16,17 and 3dB electric bridge 13; The bottom of the first feed probes 6 and the second feed probes 8 is each passed through layer dielectric plate 2, and is connected to one end of microstrip line 14 and microstrip line 15; L frequency range sub-miniature A connector 9 and S frequency range sub-miniature A connector 10 are connected to one end of microstrip line 16 and microstrip line 17; The other end of microstrip line 14, microstrip line 15, microstrip line 16, microstrip line 17 is connected on four pins of 3dB electric bridge 13.
In the present embodiment, top dielectric plate is of a size of 70mm × 70mm × 0.8mm, and the aerial radiation paster of described top dielectric plate lower surface is made up of nested square loop inside and outside two, and outer ring width is 3.8mm, inner ring width is 18.1mm, and inner ring is provided with 16 gap flutings.
In the present embodiment, layer dielectric plate is of a size of 70mm × 70mm × 0.8mm.
In the present embodiment, the height of described air layer is 5.8mm.
Further, in the present embodiment, the circular copper sheet of described first coupling is 5.4mm with the second radius being coupled circular copper sheet, and the first circular copper sheet circular copper sheet that is coupled with second that is coupled lays respectively on two center lines of described air layer, and all apart from the center 26.2mm of air layer.
In the present embodiment, the area size of described four grounded rectangle copper sheet is 60.5mm × 11mm.
Fig. 4 be antenna at low-frequency range stickogram, as can be seen from the figure the bandwidth of operation of designed antenna-10dB is 1.603GHz-1.632GHz.Fig. 5 be antenna at high band stickogram, as can be seen from the figure the bandwidth of operation of designed antenna-10dB is 2.478GHz-2.508GHz.Fig. 6 is antenna planar gain directional diagram when operating frequency is 1.616GHz and 2.492GHz.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (6)
1. a broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna, it is characterized in that: comprise top dielectric plate, layer dielectric plate, the circular copper sheet of first coupling, the second circular copper sheet of coupling and four grounded rectangle copper sheet, top dielectric plate is vertical corresponding up and down with the equal horizontal positioned of layer dielectric plate, the lower surface of top dielectric plate is provided with aerial radiation paster, the upper surface of layer dielectric plate is provided with ground plate, the lower surface of layer dielectric plate is provided with feeding network, top dielectric plate and layer dielectric plate are fixed by four plastic screw columns, the air layer of certain altitude is provided with between top dielectric plate and layer dielectric plate, the circular copper sheet of the first coupling circular copper sheet that is coupled with second to be arranged in described air layer and to be parallel to top dielectric plate and layer dielectric plate, the circular copper sheet of first coupling is equipped with distributing point with the second circle centre position being coupled circular copper sheet, described distributing point is connected with one end of the first feed probes and one end of the second feed probes respectively, and the other end of the first feed probes and the other end of the second feed probes are all connected with the distributing point in described feeding network, described four grounded rectangle copper sheet is attached at the surrounding of top dielectric plate and layer dielectric plate respectively, being wherein all connected with described ground plate of described four grounded rectangle copper sheet.
2. a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna according to claim 1, it is characterized in that: top dielectric plate is of a size of 70mm × 70mm × 0.8mm, the aerial radiation paster of described top dielectric plate lower surface is made up of nested square loop inside and outside two, outer ring width is 3.8mm, inner ring width is 18.1mm, and inner ring is provided with 16 gap flutings.
3. a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna according to claim 1, it is characterized in that: layer dielectric plate is of a size of 70mm × 70mm × 0.8mm, the feeding network of described top dielectric plate lower surface is provided with four microstrip lines, 3dB electric bridge, S frequency range sub-miniature A connector and L frequency range sub-miniature A connector; One end of described four microstrip lines is connected to four pins of described 3dB electric bridge respectively, and the other end of described four microstrip lines is connected to described S frequency range sub-miniature A connector, L frequency range sub-miniature A connector, the other end of the first feed probes, the other end of the second feed probes respectively.
4. a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna according to claim 1, is characterized in that: the height of described air layer is 5.8mm.
5. a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna according to claim 1, it is characterized in that: the circular copper sheet of described first coupling is 5.4mm with the second radius being coupled circular copper sheet, the circular copper sheet of the first coupling circular copper sheet that is coupled with second lays respectively on two center lines of described air layer, and all apart from the center 26.2mm of air layer.
6. a kind of broadband height low elevation gain Big Dipper generation satellite navigation dual-mode antenna according to claim 1, is characterized in that: the area size of described four grounded rectangle copper sheet is 60.5mm × 11mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668571.7A CN105356045B (en) | 2015-10-13 | 2015-10-13 | The high low elevation gain Big Dipper generation satellite navigation dual-mode antenna of broadband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668571.7A CN105356045B (en) | 2015-10-13 | 2015-10-13 | The high low elevation gain Big Dipper generation satellite navigation dual-mode antenna of broadband |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105356045A true CN105356045A (en) | 2016-02-24 |
| CN105356045B CN105356045B (en) | 2017-11-17 |
Family
ID=55331961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510668571.7A Active CN105356045B (en) | 2015-10-13 | 2015-10-13 | The high low elevation gain Big Dipper generation satellite navigation dual-mode antenna of broadband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356045B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425277A (en) * | 2017-07-25 | 2017-12-01 | 福建福大北斗通信科技有限公司 | Multi-frequency combination satellite navigation terminal antennae |
| CN108039577A (en) * | 2017-12-08 | 2018-05-15 | 西安中星伟业通信科技有限公司 | A kind of wideband integration microstrip antenna based on 3dB electric bridges |
| CN108306106A (en) * | 2018-01-29 | 2018-07-20 | 福州大学 | Minimize rectangular patch short circuit load satellite navigation loop aerial and terminal |
| CN108521014A (en) * | 2018-06-04 | 2018-09-11 | 福州大学 | A kind of miniaturization MIMO reader antennas and terminal applied to RFID |
| CN109244650A (en) * | 2018-10-25 | 2019-01-18 | 苏州博海创业微系统有限公司 | Wide-beam circularly-polarizedmicrostrip microstrip antenna and array |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040145525A1 (en) * | 2001-06-01 | 2004-07-29 | Ayoub Annabi | Plate antenna |
| CN103247866A (en) * | 2013-04-09 | 2013-08-14 | 北京邮电大学 | Compact type broadband bicircular polarization patch antenna based on coupling microstrip line coupler |
| CN103703620A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Wideband dual-polarization array antenna and base station |
| CN104241842A (en) * | 2014-10-13 | 2014-12-24 | 李洪彬 | Wide-beam antenna of maritime satellite communication terminal |
-
2015
- 2015-10-13 CN CN201510668571.7A patent/CN105356045B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040145525A1 (en) * | 2001-06-01 | 2004-07-29 | Ayoub Annabi | Plate antenna |
| CN103247866A (en) * | 2013-04-09 | 2013-08-14 | 北京邮电大学 | Compact type broadband bicircular polarization patch antenna based on coupling microstrip line coupler |
| CN103703620A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Wideband dual-polarization array antenna and base station |
| CN104241842A (en) * | 2014-10-13 | 2014-12-24 | 李洪彬 | Wide-beam antenna of maritime satellite communication terminal |
Non-Patent Citations (1)
| Title |
|---|
| 袁航盈等: "《一种用于"北斗"卫星导航系统的小型化微带贴片天线》", 《空军工程大学学报（自然科学版）》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425277A (en) * | 2017-07-25 | 2017-12-01 | 福建福大北斗通信科技有限公司 | Multi-frequency combination satellite navigation terminal antennae |
| CN107425277B (en) * | 2017-07-25 | 2023-06-02 | 福建福大北斗通信科技有限公司 | Multi-frequency combined satellite navigation terminal antenna |
| CN108039577A (en) * | 2017-12-08 | 2018-05-15 | 西安中星伟业通信科技有限公司 | A kind of wideband integration microstrip antenna based on 3dB electric bridges |
| CN108306106A (en) * | 2018-01-29 | 2018-07-20 | 福州大学 | Minimize rectangular patch short circuit load satellite navigation loop aerial and terminal |
| CN108521014A (en) * | 2018-06-04 | 2018-09-11 | 福州大学 | A kind of miniaturization MIMO reader antennas and terminal applied to RFID |
| CN109244650A (en) * | 2018-10-25 | 2019-01-18 | 苏州博海创业微系统有限公司 | Wide-beam circularly-polarizedmicrostrip microstrip antenna and array |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105356045B (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201797044U (en) | Single-surface-mounted-chip dual-frequency dual-polarized microstrip antenna | |
| US7525506B2 (en) | Antenna apparatus and antenna radome and design method thereof | |
| CN104241827B (en) | A kind of multifrequency compatibility stacked microstrip antenna | |
| CN105356045A (en) | Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna | |
| CN103390795B (en) | A kind of directional diagram has the antenna of multiple restructural characteristic | |
| CN204271252U (en) | For three satellite navigation aerials frequently of a Big Dipper generation and Beidou II B3 frequency range | |
| CN101505004A (en) | High gain slot array antenna based on left-hand material | |
| CN206506021U (en) | A kind of compact DBDM dual polarization broadband patch antenna of capacitive coupling feed | |
| CN104319464A (en) | UHF waveband satellite communication dual-band circularly polarized antenna device | |
| CN105990684B (en) | Radiating element and dual polarized antenna | |
| CN203850423U (en) | Wideband dual-polarization oscillator | |
| CN104966899A (en) | Omnidirectional antenna and omnidirectional antenna array | |
| CN108292794A (en) | A kind of communication equipment | |
| CN107425277B (en) | Multi-frequency combined satellite navigation terminal antenna | |
| CN105896070B (en) | Divide the ultra-wideband microstrip antenna of shape based on rectangular step structure | |
| CN104882661A (en) | Wide-beam circularly-polarized micro-strip antenna | |
| CN103682645A (en) | Reconfigurable plane microstrip antenna with multi-angle main beam pointing directions | |
| CN204243180U (en) | A kind of circular polarized antenna of horizontal omnidirectional radiation | |
| CN106486753B (en) | Navigation antenna supporting multiple systems, low profile and high gain | |
| CN107834186A (en) | A kind of broadband and wide wave beam circularly polarized dielectric resonator antenna and its design method | |
| CN114221117A (en) | Low-profile broadband wide-angle array antenna based on multistage resonance structure | |
| CN104009299A (en) | Dual-polarization base station antenna | |
| CN105186109A (en) | E-type patch based horizontally-polarized digital television transmitting antenna array | |
| CN105762534A (en) | Wide-angle high-gain Beidou navigation system satellite borne low profile antenna array | |
| CN102122759A (en) | Combined small-diameter double-frequency omnidirectional antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211019 Address after: 350002 room 1-406, physics building, 523 Industrial Road, Gulou District, Fuzhou, Fujian, China, 523 Patentee after: FUJIAN FUDA BEIDOU COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 350108 new campus of Fuzhou University, No. 2, Xue Yuan Road, University Town, Minhou street, Minhou, Fujian. Patentee before: FUZHOU University |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Wideband high and low elevation gain Beidou first generation satellite navigation transceiver antenna Effective date of registration: 20221028 Granted publication date: 20171117 Pledgee: China Merchants Bank Co.,Ltd. Fuzhou branch Pledgor: FUJIAN FUDA BEIDOU COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2022350000142 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231128 Granted publication date: 20171117 Pledgee: China Merchants Bank Co.,Ltd. Fuzhou branch Pledgor: FUJIAN FUDA BEIDOU COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2022350000142 |