CN104241863A - Beidou satellite navigator with multiple microstrip antennas - Google Patents
Beidou satellite navigator with multiple microstrip antennas Download PDFInfo
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- CN104241863A CN104241863A CN201410490199.0A CN201410490199A CN104241863A CN 104241863 A CN104241863 A CN 104241863A CN 201410490199 A CN201410490199 A CN 201410490199A CN 104241863 A CN104241863 A CN 104241863A
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- microstrip
- microstrip antennas
- beidou satellite
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Abstract
The invention discloses a Beidou satellite navigator with multiple microstrip antennas. The Beidou satellite navigator comprises a shell, a supporting plate, a supporting frame and the three microstrip antennas. One side of the supporting plate is connected with one end of the shell through a hinge in a rotating mode, one end of the supporting frame is connected with the rear side surface of the shell in a rotating mode, a supporting groove fixing the supporting frame is formed in the upper side surface of the supporting plate, and the three microstrip antennas are arranged on the rear side surface in the shell, the upper side surface in the supporting plate and the lower side surface in the supporting plate respectively. By arranging the multiple microstrip slot antennas, the navigator has 120% of impedance bandwidth and the good radiation characteristic within the frequency coverage area, is small in size and can carry out navigation accurately in the environment that satellite signals are weak.
Description
Technical field
The present invention relates to a kind of navigator, particularly relate to a kind of Beidou satellite navigation instrument adopting many microstrip antennas.
Background technology
Navigator is the product of modern science and technology, be generally used for automobile and ship running navigation, it is a kind of mental map, and can map datum wherein be upgraded, in use can carry out the prompting of travel route as guide simultaneously, global positioning satellite that China develops voluntarily that what present partial navigation instrument adopted is and communication system---Beidou satellite navigation system, the operation principle of its global location needs navigator to follow between navigation satellite to form communication, but building and metal all can produce certain interference and decay to navigation signal, simultaneously because the small volume of navigator, cause its antenna less, receive the limited in one's ability of navigation signal, therefore in component environment, there will be the situation of losing star or drift.
Summary of the invention
Object of the present invention is just to provide a kind of Beidou satellite navigation instrument adopting many microstrip antennas to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of Beidou satellite navigation instrument adopting many microstrip antennas, comprise shell, supporting bracket, bracing frame and three microstrip antennas, the side of described supporting bracket is rotatably connected by one end of hinge and described shell, one end of support frame as described above and the trailing flank of described shell are rotatably connected, the upper side of described supporting bracket is provided with the support slot of fixing support frame as described above, three described microstrip antennas are separately positioned on the trailing flank of described enclosure and the upper side of described supporting bracket inside and downside, described microstrip antenna comprises reflecting plate, ground plate, dielectric substrate and microstrip feed line, described reflecting plate and described ground plate are separately positioned on the both sides of described dielectric substrate, described microstrip feed line is arranged on inside described dielectric substrate and with the satellite signal receiving end of described navigator and is connected.
Supported by navigator by supporting bracket and bracing frame during use, navigate, adopt multiple microstrip antenna simultaneously, can make in the ability of its receiving satellite signal not increasing antenna volume stronger, coverage is wider.
Particularly, the center of described microstrip antenna is provided with isosceles triangle gap, is provided with triangle current feed terminal in described triangular slits, and described triangle current feed terminal is connected with described microstrip feed line.
Particularly, the length of described reflecting plate, described ground plate and described dielectric substrate is 110mm, is widely 110mm, and the width of described microstrip feed line is 1.6mm.
Particularly, the height of described triangular slits is 53.7mm, and bottom side length is 53.7mm, and the height of described triangle current feed terminal is 14mm, and bottom side length is 14mm, and the distance between the base of described triangular slits and the base of described triangle current feed terminal is 12.85mm.
Particularly, the resistance value of described triangle current feed terminal is 50 Ω.
Beneficial effect of the present invention is:
The present invention adopts the Beidou satellite navigation instrument of many microstrip antennas by arranging multiple microstrip slot antenna, this navigator is made to be provided with the impedance bandwidth of 120%, there is good radiation characteristic in frequency coverage, and it is little to have volume, under the environment that satellite-signal is more weak, also can navigate accurately.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Beidou satellite navigation instrument of the many microstrip antennas of employing of the present invention;
Fig. 2 is the structural representation of microstrip antenna of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As depicted in figs. 1 and 2, the present invention adopts the Beidou satellite navigation instrument of many microstrip antennas 4, comprise shell 1, supporting bracket 2, bracing frame 3 and three microstrip antennas 4, the side of supporting bracket 2 is rotatably connected by one end of hinge and shell 1, one end of bracing frame 3 and the trailing flank of shell 1 are rotatably connected, the upper side of supporting bracket 2 is provided with the support slot of fixing support rack 3, three microstrip antennas 4 are separately positioned on the trailing flank of shell 1 inside and the upper side of supporting bracket 2 inside and downside, microstrip antenna 4 comprises reflecting plate 7, ground plate 6, dielectric substrate 5 and microstrip feed line 9, reflecting plate 7 and ground plate 6 are separately positioned on the both sides of dielectric substrate 5, microstrip feed line 9 is arranged on inside dielectric substrate 5 and with the satellite signal receiving end of navigator and is connected, the center of microstrip antenna 4 is provided with isosceles triangle gap 8, triangle current feed terminal 10 is provided with in triangular slits 8, triangle current feed terminal 10 is connected with microstrip feed line 9, reflecting plate 7, the length of ground plate 6 and dielectric substrate 5 is 110mm, widely be 110mm, the width of microstrip feed line 9 is 1.6mm, the height of triangular slits 8 is 53.7mm, bottom side length is 53.7mm, the height of triangle current feed terminal 10 is 14mm, bottom side length is 14mm, distance between the base of triangular slits 8 and the base of triangle current feed terminal 10 is 12.85mm, the resistance value of triangle current feed terminal 10 is 50 Ω.
The present invention adopts the operation principle of the Beidou satellite navigation instrument of many microstrip antennas 4 as follows:
By arranging multiple microstrip antenna 4 on shell 1 with supporting bracket 2, make the receiving satellite signal that navigator also can be good in the environment that satellite-signal is more weak, first send request signal by central control system to satellite I and satellite II, through satellite repeater to the user's broadcast in service area during work simultaneously.User responds the request signal of a wherein satellite, and sends response signals to two satellites simultaneously, is forwarded back to central control system through satellite.Central control system receives the signal that also demodulation user sends, and then carries out corresponding data processing according to the application service content of user.To location application, central control system measures two time delays: namely send request signal from central control system, and forward through a certain satellite and arrive user, user sends location response signal, is forwarded back to the delay of central control system through same satellite; Send request signal with controlling from center, arrive user through above-mentioned same satellite, user sends response signal, is forwarded back to the delay of central control system through another satellite.Because the position of central control system and two satellites is all known, therefore the distance of user to first satellite can be calculated by two retardations above, and user is to two satellite distance sums, thus know that user is in the sphere that is the centre of sphere with first satellite, with on the intersection between two satellites ellipsoid that is focus.Central control system searches user's height value from the Digital Topographic Map ' be stored in computer in addition, can know that again user is on a certain ellipsoid parallel with earth reference ellipsoid.Thus central control system finally can calculate the three-dimensional coordinate of user's point, this coordinate sends to user through encryption by exit signal.
Technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, the technology distortion that every technical scheme according to the present invention is made, and all falls within protection scope of the present invention.
Claims (5)
1. one kind adopts the Beidou satellite navigation instrument of many microstrip antennas, comprise shell, it is characterized in that: also comprise supporting bracket, bracing frame and three microstrip antennas, the side of described supporting bracket is rotatably connected by one end of hinge and described shell, one end of support frame as described above and the trailing flank of described shell are rotatably connected, the upper side of described supporting bracket is provided with the support slot of fixing support frame as described above, three described microstrip antennas are separately positioned on the trailing flank of described enclosure and the upper side of described supporting bracket inside and downside, described microstrip antenna comprises reflecting plate, ground plate, dielectric substrate and microstrip feed line, described reflecting plate and described ground plate are separately positioned on the both sides of described dielectric substrate, described microstrip feed line is arranged on inside described dielectric substrate and with the satellite signal receiving end of described navigator and is connected.
2. the Beidou satellite navigation instrument of the many microstrip antennas of employing according to claim 1, it is characterized in that: the center of described microstrip antenna is provided with isosceles triangle gap, be provided with triangle current feed terminal in described triangular slits, described triangle current feed terminal is connected with described microstrip feed line.
3. the Beidou satellite navigation instrument of the many microstrip antennas of employing according to claim 1, is characterized in that: the length of described reflecting plate, described ground plate and described dielectric substrate is 110mm, is widely 110mm, and the width of described microstrip feed line is 1.6mm.
4. the Beidou satellite navigation instrument of the many microstrip antennas of employing according to claim 2, it is characterized in that: the height of described triangular slits is 53.7mm, bottom side length is 53.7mm, the height of described triangle current feed terminal is 14mm, bottom side length is 14mm, and the distance between the base of described triangular slits and the base of described triangle current feed terminal is 12.85mm.
5. the Beidou satellite navigation instrument of the many microstrip antennas of employing according to claim 4, is characterized in that: the resistance value of described triangle current feed terminal is 50 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490199.0A CN104241863A (en) | 2014-09-23 | 2014-09-23 | Beidou satellite navigator with multiple microstrip antennas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490199.0A CN104241863A (en) | 2014-09-23 | 2014-09-23 | Beidou satellite navigator with multiple microstrip antennas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104241863A true CN104241863A (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490199.0A Pending CN104241863A (en) | 2014-09-23 | 2014-09-23 | Beidou satellite navigator with multiple microstrip antennas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972252A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of handheld device mutli-system integration formula antenna |
Citations (5)
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| CN2796023Y (en) * | 2005-04-04 | 2006-07-12 | 江苏新科电子集团有限公司 | Satellite navigatin device support |
| CN201043996Y (en) * | 2007-04-18 | 2008-04-02 | 吴小龙 | Vehicle GPS navigator |
| CN101217061A (en) * | 2007-01-05 | 2008-07-09 | 奇美电子股份有限公司 | Adjustable display |
| WO2012004602A1 (en) * | 2010-07-07 | 2012-01-12 | Gi Provision Limited | Antenna assembly for a wireless communications device |
| CN204179233U (en) * | 2014-09-23 | 2015-02-25 | 四川鑫远志空间信息科技有限公司 | Adopt the Beidou satellite navigation instrument of many microstrip antennas |
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2014
- 2014-09-23 CN CN201410490199.0A patent/CN104241863A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796023Y (en) * | 2005-04-04 | 2006-07-12 | 江苏新科电子集团有限公司 | Satellite navigatin device support |
| CN101217061A (en) * | 2007-01-05 | 2008-07-09 | 奇美电子股份有限公司 | Adjustable display |
| CN201043996Y (en) * | 2007-04-18 | 2008-04-02 | 吴小龙 | Vehicle GPS navigator |
| WO2012004602A1 (en) * | 2010-07-07 | 2012-01-12 | Gi Provision Limited | Antenna assembly for a wireless communications device |
| CN204179233U (en) * | 2014-09-23 | 2015-02-25 | 四川鑫远志空间信息科技有限公司 | Adopt the Beidou satellite navigation instrument of many microstrip antennas |
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| 胡帅江等: "《一种新型三角形宽带微带缝隙天线的设计》", 《火力与指挥控制》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972252A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of handheld device mutli-system integration formula antenna |
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Application publication date: 20141224 |
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