CN108550984A - A kind of GPS/BD2 microstrip antennas - Google Patents
A kind of GPS/BD2 microstrip antennas Download PDFInfo
- Publication number
- CN108550984A CN108550984A CN201810208458.4A CN201810208458A CN108550984A CN 108550984 A CN108550984 A CN 108550984A CN 201810208458 A CN201810208458 A CN 201810208458A CN 108550984 A CN108550984 A CN 108550984A
- Authority
- CN
- China
- Prior art keywords
- low noise
- printed board
- aerial radiation
- antenna
- radiation plate
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Classifications
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- 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
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- 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)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of GPS/BD2 microstrip antennas, including antenna house, aerial radiation plate, low noise printed board, low noise mounting plate, antenna house is located at low noise mounting plate upper surface, groove is opened up in the middle part of low noise mounting plate, low noise printed board is mounted on low noise mounting plate upper surface, aerial radiation plate, which stacks, to be arranged in low noise printed board, four side of aerial radiation plate is respectively inserted with the tunable metallic rod of a row, aerial radiation plate is embedded with inner wire, it is electrically connected with low noise printed board, the electromagnetic signal energy that aerial radiation plate receives is transferred to low noise printed board to carry out signal processing by the inner wire.The microstrip antenna size of the present invention significantly decreases, and the angular range that high gain in performance, wide standing wave bandwidth and directional diagram are covered is big, simultaneously because selecting the aerial radiation plate of composite and the elastic damping Embedding Material filled around it so that microstrip antenna is still reliable and stable under high overload shock environment.
Description
Technical field
The invention belongs to satellite navigation system fields, and in particular to a kind of GPS/BD2 microstrip antennas.
Background technology
Wireless communication, radar communications system are all each not by the transmitting of electromagnetic wave and receive process realization in principle
With function, all contain antenna, transmitter, receiver, signal processor etc. in structure.Communication frequency is by antenna in system
The limitation of operational frequency bandwidth, if being more than antenna frequencies bandwidth, the directional diagram of antenna will deteriorate, and performance will decline, to logical
Letter quality adversely affects.
It is the various aircraft of location navigation in spaceborne radar communication system, it is especially small in order to accurately control aircraft to be measured
The flight course of type guided missile, need to be by the positioning antenna real-time reception that is fitted on small aircraft come satellite navigation system
Parameters index, however the flying speed of general object to be measured is very fast, the elevation angle over the ground changes greatly, to ensure navigation data
It is complete to receive, while the flying speed that adapts to object to be measured is very fast and the elevation angle over the ground changes situation greatly, needs selection work
In the frequency range of GPS or BD2, the reception antenna of higher low elevation gain and higher on-axis gain.
At present in satellite navigation system, the reception antenna for being operated in multiband usually selects the double micro- of circular polarisation mode
As reception antenna, double micro-strip paster antennas are typically mounted at object to be measured both sides, are realized by microstrip antenna band antenna patch
Signal receives, because certain angles may be caused to cannot be satisfied gain requirement there are electromagnetism " interference " when double antenna works, to
It is difficult to ensure the integrality of location data, and it uses microstrip antenna to be attached to both sides, structural strength may cannot be satisfied winged
Row device is in the requirement under adverse circumstances, in addition, microstrip antenna is yielding when there are temperature higher than 200 °, can lead to antenna structure
It changes so that antenna precision, which is affected, even results in antenna damage.What is more important, if requiring wider work
Frequency band then needs multiple microstrip antennas being combined.A kind of microstrip antenna side as disclosed in patent document CN201520832207
Case, uses to be operated in GPS frequency ranges and be operated in two layers of antenna oscillator of BD2 frequency ranges and is laminated, in addition to there are the above problems
In addition, irdome size is in 79.8mm*69.7mm*100mm, cavity size 150mm*106.2mm*22mm, compared to traditional day
Size is still bigger than normal for smaller aircraft especially guided missile although having become smaller for size for line, reduces antenna
Size can make antenna gain reduce to influence the reception of antenna.Meanwhile general Miniaturized Microstrip Antennas can select height
The ceramic substrate of dielectric constant, however ceramic material is more fragile, is not particularly suited for high overload shock environment, therefore, compels to be essential
Want frequency range and higher low elevation gain and the higher on-axis gain that small size, structural strength are big, are operated in GPS or BD2
Reception antenna.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of GPS/BD2 microstrip antennas, lead to
It crosses and improves the size that microstrip antenna structure significantly reduces antenna, and to keep high gain, wide standing wave bandwidth in its performance
And the angular range that directional diagram is covered is big, while selecting the aerial radiation plate of composite and filling elastic damping around it and filling
Closure material so that it is still reliable and stable under high overload shock environment.
To achieve the above object, according to one aspect of the present invention, a kind of GPS/BD2 microstrip antennas, feature are provided
It is, including antenna house, aerial radiation plate, low noise printed board and low noise mounting plate, wherein the low noise printed board is made
For microstrip antenna device installation base plate, for installing various components, the antenna house is located at low noise mounting plate upper surface,
Space forms the cavity for accommodating installation low noise printed board and aerial radiation plate, the low noise peace in cover between the two
Groove is opened up in the middle part of loading board, the low noise printed board is mounted on low noise mounting plate upper surface and covers described recessed
Slot, the aerial radiation plate, which stacks, to be arranged in the low noise printed board, wherein and the aerial radiation plate is square structure,
Material is the composite that dielectric constant is less than ceramic substrate, is connect with low noise printed board after the photoetching of the back side, positive photoetching
Preparing has the radiation patch of trough of belt and corner cut, and four side of aerial radiation plate is used for respectively inserted with the tunable metallic rod of a row
Micro- humorous antenna parameter, which is embedded with inner wire, is electrically connected with low noise printed board, high for being fed
Frequency cable is connect after the groove of the low noise mounting plate with low noise printed board, the electromagnetism that the aerial radiation plate receives
Signal energy is transferred to low noise printed board to carry out signal processing by the inner wire.
As a further improvement on the present invention, the low noise mounting plate central slot forms installation low noise printed board
Mounting portion, for being matched with antenna house end, the groove is opened in the mounting portion for the neighboring of low noise mounting plate
Center.
As a further improvement on the present invention, the aerial radiation plate passes through scolding tin and and low noise with low noise printed board
Mounting plate is bonded integral by screw.
As a further improvement on the present invention, described to be located at the aerial radiation plate just between antenna house and aerial radiation plate
Face embedding flexible damping material in gap below.
As a further improvement on the present invention, the radiation patch realizes circular polarisation by corner cut.
As a further improvement on the present invention, the aerial radiation plate uses dielectric constant for 14~16 material, size
For (20~22) mm × (20~22) mm × (2~4) mm.
As a further improvement on the present invention, the antenna house uses dielectric constant for 2~5, and size is (23~24)
Mm × (40~44) mm × (10~11) mm, thickness are 1mm~2mm.
As a further improvement on the present invention, the radiation patch is preferably dimensioned to be (16~18) mm × (16~18) mm,
Thickness is 0.015mm~0.025mm.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit：
1) in microstrip antenna of the invention, the aerial radiation plate of square structure, select high dielectric constant material and
Its surrounding is inserted into tuning metallic rod, and special square structure and selection high dielectric constant material maintain higher antenna
Performance in terms of gain, standing wave bandwidth, directional diagram, and effectively reduce antenna size and realize and apply in the fields GPS/BD2
Antenna miniaturization.
2) in microstrip antenna of the invention, by using composite aerial radiation plate and hindered in its surrounding embedding elasticity
Damping material, since the damping action of elastic material makes it still can keep reliable and stable in high overload shock environment.
3) microstrip antenna of the invention can be not only used for the satellite navigation system of the aircraft such as miniature missile, while also fit
Miniaturization navigation system for ground.
Description of the drawings
Fig. 1 is the sectional view of the vertical direction of the preferred embodiment of the present invention miniaturization microstrip antenna；
Fig. 2 is the standing wave schematic diagram of the preferred embodiment of the present invention miniaturization microstrip antenna；
Fig. 3 is the gain schematic diagram in the faces the preferred embodiment of the present invention miniaturization microstrip antenna E；
Fig. 4 is the gain schematic diagram in the faces the preferred embodiment of the present invention miniaturization microstrip antenna H；
Fig. 5 is that the faces the preferred embodiment of the present invention miniaturization microstrip antenna E axis compares schematic diagram；
Fig. 6 is that the faces the preferred embodiment of the present invention miniaturization microstrip antenna H axis compares schematic diagram；
In all the appended drawings, same reference numeral indicates identical technical characteristic, specially：1- antenna houses, 2- antennas
Radiant panel, the printed board of 3- low noise, 4- low noise mounting plate, 5- inner wires, 6- high frequency cables.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Conflict is constituted to can be combined with each other.The present invention is described in more detail With reference to embodiment.
Fig. 1 is the sectional view of the vertical direction of the Miniaturized Microstrip Antennas of a preferred embodiment of the present invention.Such as Fig. 1 institutes
Show, the microstrip antenna of the present embodiment includes antenna house 1, aerial radiation plate 2, low noise printed board 3, low noise mounting plate 4.Low noise
It puts printed board 3 and is used as microstrip antenna device installation base plate, for installing various components, antenna house 1 is located at low noise installation
4 upper surface of plate, to which space forms and installs low noise printed board 3 and aerial radiation plate 2 for accommodating in cover between the two
Cavity, low noise printed board 3 and aerial radiation plate 2 stack on the upper surface of the low noise mounting plate 4 in cover body.
As shown in Figure 1,4 central slot of low noise mounting plate, forms the mounting portion as installation low noise printed board 3, it is low
The neighboring for putting mounting plate 4 make an uproar for being matched with 1 end of antenna house, antenna house 1 passes through end and 4 periphery of low noise mounting plate
Edge matching is installed, such as is coordinated installation preferably through fixed installations modes such as bondings or pacified by removablies such as screws
Dress, so as to cover on low noise mounting plate 4, and in the interior device installation space for forming microstrip antenna of antenna house 1.It is preferred that installing
Its centre of surface of portion opens up groove, passes through mounting portion for signal cable and connects with low noise printed board 3 mounted thereto
It connects.Mounting portion peripheral surface is arranged as mounting surface, low noise printed board 3 on mounting portion, and preferably low noise printed board 3 is taken
It being located on mounting portion, i.e., its middle part covers the groove and its neighboring rides upon on the mounting surface of mounting portion recess edge,
Low noise printed board 3 is fitted closely preferably through screw and mounting portion, can also be that other connection types are fixedly connected.
As shown in Figure 1, aerial radiation plate 2 is fixedly connected with low noise printed board 3, it is bonded at whole preferably through scolding tin
Body.In the present embodiment, aerial radiation plate 2 is square structure, such as square or rectangular etc., and material is less than for dielectric constant
The composite of ceramic substrate is connect after the photoetching of the back side with low noise printed board 3, and front optical graving has trough of belt and corner cut
Radiation patch.Radiation patch can realize circular polarisation by corner cut.
In the present solution, rectangular 2 four side of aerial radiation plate is used for micro- humorous antenna respectively inserted with the tunable metallic rod of a row
Parameter.Aerial radiation plate 2 is embedded with inner wire 5, is electrically connected with low noise printed board 3, for being fed, high frequency cable 6
It is stretched by 4 bottom of low noise mounting plate in the groove of mounting portion and is connect with low noise printed board 3, aerial radiation plate 2 receives
Electromagnetic signal energy by inner wire 5 be transferred to low noise printed board 3 carry out signal processing.
In the present solution, the aerial radiation plate by selecting square structure, shape are radiated different from common circular antenna
Plate, and it is inserted into tunable metallic rod in its surrounding, antenna resonance point is reduced by adjusting metal tuning plug on aerial radiation plate 2,
The electric field of its working frequency range is acquired from Maxwell equation and magnetic field is divided in combination with the high dielectric constant material of selection
Cloth can be found that the antenna in GPS-L1 (1575.42 ± 1.023MHz) and BD2-B1 (1561.098 ± 2.046MHz) frequency range
Upper gain is big and its directional diagram can work within the scope of ± 80 °.
As shown in Figure 1, in the present solution, it is preferred that being located at the aerial radiation plate 2 between antenna house 1 and aerial radiation plate 2
Front embedding flexible damping material in gap below, can also be between antenna house 1 and low noise mounting sheet 3 and is located at
Filling embedding elastic damping material or other gap embedding filling elasticity resistances in the gap below of low noise mounting sheet front
Damping material.After above-mentioned elastic damping material embedding filling, since shape can be therewith when speed changes for elastic damping material
It changes, when antenna receives impact, impact force action can be acted on by damping material on low noise mounting sheet and be buffered,
So that the impact force that the devices such as aerial radiation plate are subject to substantially reduces, to still keep day in high overload shock environment
Line is reliable and stable.
In a preferred embodiment, aerial radiation plate 2 uses dielectric constant for 14~16 material, such as microwave composite substrate
Material, size can be (20~22) mm × (20~22) mm × (2~4) mm, such as can be 20mm × 20mm × 2mm,
21mm × 21mm × 3mm, 22mm × 22mm × 3mm, 24mm × 24mm × 4mm etc..
Preferably, antenna house uses dielectric constant for 2~5 material, is preferably dimensioned to be (23~24) mm × (40~44)
Mm × (10~11) mm (radian Φ 88mm), such as can be 23mm × 40mm, 23mm × 41mm, 24mm × 42mm, 24mm ×
44mm etc., thickness can be 1mm~2mm.The preferred copper of radiation patch material therein or gold, size can preferably (16~18)
Mm × (16~18) mm, thickness are 0.015mm~0.025mm.In a preferred embodiment, antenna house selection dielectric constant is
4.5 material, size are 24mm × 44mm × 10.95mm (radian Φ 88mm), thickness 1.5mm.In another preferred implementation
In example, it is 14 material that aerial radiation plate, which selects dielectric constant, and size is 20.5mm × 20.5mm, thickness 3.5mm, radiation patch
It is 16.7mm × 17.2mm, thickness 0.018mm that piece, which uses copper plated material, size,.
Fig. 2 is the standing wave schematic diagram of the microstrip antenna of a preferred embodiment, as shown in Fig. 2, the microstrip antenna is in GPS-
L1 (1575.42 ± 1.023MHz) and the standing wave of BD2-B1 (1561.098 ± 2.046MHz) frequency range are less than 2, Fig. 3 and Fig. 4 and distinguish
For the faces E of the microstrip antenna frequency range and the gain schematic diagram in the faces H, as described in fig. 3 and fig. 4, the faces E of the antenna and H side gains exist
Be all higher than within the scope of ± 80 ° in GPS-L1 (1575.42 ± 1.023MHz) and BD2-B1 (1561.098 ± 2.046MHz) frequency range-
5dB and maximum gain are more than the faces E and the faces the H axis ratio schematic diagram that 3dB, Fig. 5 and Fig. 6 are respectively the microstrip antenna, such as Fig. 5 and Fig. 6
Shown, the faces E and the faces H of the antenna are in GPS-L1 (1575.42 ± 1.023MHz) and BD2-B1 (1561.098 ± 2.046MHz)
Axial 0 ° of axis ratio is less than 7dB in frequency range.The electrical property of above-mentioned Fig. 2~Fig. 6 of the embodiment of the present invention is in miniature missile carrier mould
Simulation result under near-ring border.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of GPS/BD2 microstrip antennas, which is characterized in that including antenna house (1), aerial radiation plate (2), low noise printed board
(3) and low noise mounting plate (4), wherein the low noise printed board (3) is used as microstrip antenna device installation base plate, for pacifying
Various components are filled, the antenna house (1) is located at low noise mounting plate (4) upper surface, and space is formed in cover between the two
Cavity for accommodating installation low noise printed board (3) and aerial radiation plate (2)；
Groove is opened up in the middle part of the low noise mounting plate (4), the low noise printed board (3) is mounted on the low noise peace
Loading board (4) upper surface simultaneously covers the groove, and the aerial radiation plate (2), which stacks, to be arranged on the low noise printed board (3),
Wherein, which is square structure, and material is the composite that dielectric constant is less than ceramic substrate, the back side
It is connect with low noise printed board (3) after photoetching, front optical graving has the radiation patch of trough of belt and corner cut；
(2) four side of the aerial radiation plate respectively inserted with the tunable metallic rod of a row, is used for micro- humorous antenna parameter, the antenna spoke
It penetrates plate (2) and is embedded with inner wire (5), be electrically connected with low noise printed board (3), for being fed, high frequency cable (6) passes through
It is connect with low noise printed board (3) after the groove of the low noise mounting plate (4), the electromagnetism that the aerial radiation plate (2) receives
Signal energy is transferred to low noise printed board (3) to carry out signal processing by the inner wire (5).
2. GPS/BD2 microstrip antennas according to claim 1, wherein the slot of low noise mounting plate (4) central slot
Wall end face forms the mounting portion of installation low noise printed board (3), and the neighboring of low noise mounting plate (4) is used for and antenna house
(1) end matches, and the groove is opened in the mounting portion center.
3. GPS/BD2 microstrip antennas according to claim 1 or 2, wherein the aerial radiation plate (2) prints with low noise
Making sheet (3) is connected and is bonded by screw with low noise mounting plate (4) integral by scolding tin.
4. GPS/BD2 microstrip antennas according to any one of claim 1-3, wherein the antenna house (1) and antenna spoke
It penetrates between plate (2) positioned at the aerial radiation plate (2) front embedding flexible damping material in gap below.
5. the GPS/BD2 microstrip antennas according to any one of claim 1-4, wherein the radiation patch passes through corner cut
Realize circular polarisation.
6. GPS/BD2 microstrip antennas according to any one of claims 1-5, wherein the aerial radiation plate (2) uses
The material that dielectric constant is 14~16, size are (20~22) mm × (20~22) mm × (2~4) mm.
7. the GPS/BD2 microstrip antennas according to any one of claim 1-6, wherein the antenna house (1) uses dielectric
Constant is 2~5, and size is (23~24) mm × (40~44) mm × (10~11) mm, and thickness is 1mm~2mm.
8. according to claim 1-7 any one of them GPS/BD2 microstrip antennas, wherein the radiation patch is preferably dimensioned to be
(16~18) mm × (16~18) mm, thickness are 0.015mm~0.025mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208458.4A CN108550984B (en) | 2018-03-14 | 2018-03-14 | GPS/BD2 microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208458.4A CN108550984B (en) | 2018-03-14 | 2018-03-14 | GPS/BD2 microstrip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108550984A true CN108550984A (en) | 2018-09-18 |
| CN108550984B CN108550984B (en) | 2020-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810208458.4A Active CN108550984B (en) | 2018-03-14 | 2018-03-14 | GPS/BD2 microstrip antenna |
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| CN (1) | CN108550984B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728401A (en) * | 2018-12-26 | 2019-05-07 | 北京遥测技术研究所 | A kind of high-gain multiband navigation antenna |
| CN111308425A (en) * | 2018-12-11 | 2020-06-19 | 北京华航无线电测量研究所 | Speed measuring Doppler radar vibration damper |
| CN114243286A (en) * | 2021-12-03 | 2022-03-25 | 中国电子科技集团公司第二十九研究所 | Vibration and impact resistant microstrip feed antenna structure |
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| CN111308425A (en) * | 2018-12-11 | 2020-06-19 | 北京华航无线电测量研究所 | Speed measuring Doppler radar vibration damper |
| CN109728401A (en) * | 2018-12-26 | 2019-05-07 | 北京遥测技术研究所 | A kind of high-gain multiband navigation antenna |
| CN109728401B (en) * | 2018-12-26 | 2021-04-13 | 北京遥测技术研究所 | High-gain multi-frequency-band navigation antenna |
| CN114243286A (en) * | 2021-12-03 | 2022-03-25 | 中国电子科技集团公司第二十九研究所 | Vibration and impact resistant microstrip feed antenna structure |
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| Publication number | Publication date |
|---|---|
| CN108550984B (en) | 2020-05-15 |
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