CN202949039U - Magnetically and electrically adjustable micro-strip antenna - Google Patents
Magnetically and electrically adjustable micro-strip antenna Download PDFInfo
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- CN202949039U CN202949039U CN 201220625740 CN201220625740U CN202949039U CN 202949039 U CN202949039 U CN 202949039U CN 201220625740 CN201220625740 CN 201220625740 CN 201220625740 U CN201220625740 U CN 201220625740U CN 202949039 U CN202949039 U CN 202949039U
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Abstract
The utility model discloses a magnetically and electrically adjustable micro-strip antenna which comprises a magnetoelectric laminated material substrate, electric magnets, a micro-strip feeder, a ferromagnetic phase and a piezoelectric phase. The ferromagnetic phase and the piezoelectric phase are arranged on the magnetoelectric laminated material substrate from top to bottom, the ferromagnetic phase and the piezoelectric phase are adhered through epoxy resin, a layer of metal film is respectively plated on the front lateral surface and the rear lateral surface of the piezoelectric phase, the lower surface of the piezoelectric phase is connected with the ground, metal micro-strip pasters made through a photoetching method are arranged on the upper surface of the ferromagnetic phase and used as micro-strip radiation units, the metal micro-strip pasters are connected through the micro-strip feeder, and one pair of electric magnets is arranged at the left end and the right end of the magnetoelectric laminated material substrate. The magnetically and electrically adjustable micro-strip antenna overcomes the defect that an operating frequency band of a traditional microwave device is non-adjustable or an adjustable operating frequency band is single, the operating frequency band cannot be adjusted accurately and the like, and is suitable for adjustable application in wireless communication. Simultaneously, the magnetically and electrically adjustable micro-strip antenna has magnetically and electrically adjustable characteristics and overcomes the defect that a traditional magnetically adjustable microwave device is large in loss during operation, long in response time and the like.
Description
Technical field
The utility model relates to a kind of miniaturization adjustable microwave device, particularly the two adjustable micro-strip paster antennas of a kind of magnetoelectricity.
Background technology
Antenna is imported and exported as radio communication, affects to a great extent the performance of wireless communication system, and simultaneously, in most of the cases the size of antenna is also the important decisive factor of wireless communication terminal size.It is low that microstrip antenna has a section, and miniaturization is made simply, and easy of integration, the advantages such as good directionality are widely used in communication and navigation, radar, the fields such as electronic countermeasures.In recent years, along with fast development and the progress of wireless communication industry, industry has had higher requirement to miniaturization and the multifunction of antenna.
The operating frequency of traditional sucrose microstrip aerial substrate is single, and also having a unavoidable contradiction simultaneously is to subtract the undersized wider working band that obtains simultaneously.And R
.K. the adjustable microstrip antenna of magnetic of the people such as Mishra design is based on ferrite substrate, and its principle is mainly to utilize the relatively high dielectric constant of ferrite medium effectively to reduce the size of micro-strip paster antenna; Simultaneously because the ferrite medium is biased under the condition in magnetic field outside, its magnetic permeability can change, change has occured in the dielectric property that is antenna substrate, therefore under the condition that can't change antenna size, can add the operating frequency that bias magnetic field is regulated antenna by change.But because the coil that is used for applying bias magnetic field has limitation, the adjustable microstrip antenna of this magnetic exists that device loss is large, the response time long, can produce the shortcomings such as huge noise, bigger error during work.Generally speaking, existing microstrip antenna ubiquity working frequency range is non-adjustable or the adjustable working frequency band is single, loss is large, the deficiency such as fine adjustment in can't realizing among a small circle.
Summary of the invention
The purpose of this utility model is the defective that overcomes prior art, provides a kind of magnetoelectricity two adjustable microstrip antennas.
The two adjustable microstrip antennas of a kind of magnetoelectricity comprise magnetoelectricity laminate substrate, electromagnet, microstrip feed line, ferromagnetic phase, piezoelectric phase; Magnetoelectricity laminate substrate is respectively from top to bottom ferromagnetic phase and piezoelectric phase, and ferromagnetic phase and piezoelectric phase pass through epoxy resin bonding; Be coated with respectively the layer of metal film on former and later two side surface faces of piezoelectric phase, be first layer metal film, second layer metal film, the lower surface ground connection of piezoelectric phase, the upper surface of ferromagnetic phase is made the metal micro-strip paster by the photoetching corrosion method, this metal micro-strip paster is used as little band radiating element, the metal micro-strip paster is connected by microstrip feed line, places a pair of electromagnet at the two ends, left and right of magnetoelectricity laminate substrate.
Described first layer metal film, second layer metal film are gold thin film or silver-colored film.
Described ferromagnetic be yttrium iron garnet YIG mutually, piezoelectric phase is lead zirconate titanate PZT.
Described metal micro-strip paster is the mountain font.
Apply external voltage by described first layer metal film, second layer metal film.
Compared with prior art, the beneficial effects of the utility model are:
At first due to the magnetoelectricity laminate exist high-k (
10) and high magnetic permeability (
10) advantage, can realize the miniaturization of microstrip antenna.Moreover, can apply different bias magnetic fields to the magnetoelectricity laminate by the electric current on regulating magnet and the distance between south poles, realize the coarse adjustment of operating frequency of antenna.Apply external voltage by the metallic film in piezoelectric phase former and later two sides and realize the fine adjustment of operating frequency in tens megahertzes.By changing the positive negative direction of voltage, can realize the left and right skew at stopband peak, and for different piezoelectrics, the direction of its skew and side-play amount can there are differences also.The independence of working between flux control and electric field adjusting can the phase mutual interference.The utility model has overcome that traditional microwave device working frequency range is non-adjustable or the adjustable working frequency band is single, can't be in little band limits the shortcoming such as fine adjustment, be fit to the adjustable application in radio communication.Simultaneously, due to the two tunable characteristics of its magnetoelectricity, when this design has overcome traditional magnetic adjustable microwave device work, loss is large, the shortcomings such as the response time is long will be in the mobile communication of China, satellite communication, Medical Instruments, the arms remote control, there is very large application prospect in the fields such as safety system and Bluetooth technology.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is the vertical view of the two adjustable micro-strip paster antennas of magnetoelectricity.
Fig. 2 is the stereogram of the two adjustable micro-strip paster antennas of magnetoelectricity.
Fig. 3 is the schematic diagram of metal micro-strip paster.
Fig. 4 be working frequency points of the present utility model in the 8.7-9GHz frequency range magnetic adjustability skew schematic diagram.
Fig. 5 is the electric adjustability skew schematic diagram of working frequency points of the present utility model in the 8.79-4.81GHz frequency range.
In figure, 1, magnetoelectricity laminate substrate, 2, the metal micro-strip paster, 3, electromagnet, 4, microstrip feed line, 5, ferromagnetic phase, 6, piezoelectric phase, 7, the first layer metal film, 8, the second layer metal film.
Embodiment
The two adjustable microstrip antennas of a kind of magnetoelectricity comprise magnetoelectricity laminate substrate 1, electromagnet 3, microstrip feed line 4, ferromagnetic phase 5, piezoelectric phase 6; Magnetoelectricity laminate substrate 1 is respectively from top to bottom ferromagnetic phase 5 and piezoelectric phase 6, and ferromagnetic phase 5 and piezoelectric phase 6 pass through epoxy resin bonding; Be coated with respectively layer of metal film 7,8 on former and later two side surface faces of piezoelectric phase 6, the lower surface ground connection of piezoelectric phase 6, the upper surface of ferromagnetic phase 5 is made metal micro-strip paster 2 by the photoetching corrosion method, this metal micro-strip paster 2 is used as little band radiating element, metal micro-strip paster 2 is connected with the lower surface of piezoelectric phase 6 by microstrip feed line 4 and carries out feed, places a pair of electromagnet 3 at the two ends, left and right of magnetoelectricity laminate substrate 1.
Described metallic film 7,8 is gold or silver-colored.
Described ferromagnetic phase 5 is yttrium iron garnet YIG, and piezoelectric phase 6 is lead zirconate titanate PZT.
Described metal micro-strip paster 2 is the mountain font.
Apply external voltage by described metallic film 7,8.
The control method of a kind of described magnetoelectricity pair adjustable microstrip antenna, when 3 pairs of magnetoelectricity laminate substrates 1 of electromagnet apply external bias magnetic field, the magnetic permeability of ferromagnetic phase 5 changes, thereby caused the operating frequency of microstrip antenna to be offset, can apply different bias magnetic fields to magnetoelectricity laminate substrate 1 by the electric current on regulating magnet 3 and the distance between south poles, realize the coarse adjustment of microstrip antenna operating frequency; Metallic film 7,8 in piezoelectric phase 6 former and later two sides applies external voltage, by the capacity effect between two metallic films 7,8, can produce uniform electric field on the piezoelectric phase 6 of magnetoelectricity laminated substrate 1, can realize the fine adjustment of microstrip antenna operating frequency in tens megahertzes by described electric field, by changing the positive negative direction of voltage, realize the left and right skew of microstrip antenna operating frequency.
As shown in Figure 1, at the upper surface of magnetoelectricity laminate substrate 1, by standby " mountain " the font metal patch of photoetching corrosion legal system, its center line with the substrate length direction is symmetrical along the length direction of substrate.Magnetoelectricity laminate substrate 1 as shown in Figure 2 is by epoxy resin, the ferromagnet 5 of same size to be bonded together with piezoelectrics 6 to be achieved, and wherein W and L are expressed as respectively width and the length of substrate, and d1 is the thickness of ferromagnetic phase, and d2 is the thickness of piezoelectric phase.Simultaneously, plate respectively double layer of metal film 7,8 in the both sides, front and back of piezoelectrics, its material is selected gold or silver usually.The left and right sides that the two poles of the earth of electromagnet 3 are positioned over respectively antenna is used for applying external bias magnetic field.
Embodiment 1
The ferromagnetic layer of magnetoelectricity laminate substrate and piezoelectric layer are selected respectively YIG and PZT bi-material.Wherein the YIG layer is of a size of 15.5mm * 5.5mm * 0.5mm, and PZT is of a size of 15.5mm * 5.5mm * 0.5mm, passes through epoxy resin bonding between two-layer.Simultaneously, plate respectively two-layer silver-colored film in former and later two sides of PZT layer, silver-colored film is of a size of: 8mm * 0.25mm * 0.005mm.At the upper surface of magnetoelectricity laminate substrate, by the standby metal patch that is " mountain " font of photoetching corrosion legal system, be used as little band radiating element, utilize paster to carry out feed, form a microstrip antenna and realize the unit, its size is as shown in Figure 3.
During the two adjustable micro-strip paster antenna work of magnetoelectricity, the port input of microwave signal from Fig. 1, when microwave signal 9 ghz bands are example, magnetic adjustability skew schematic diagram is as shown in Figure 4 in 8.7-9 GHz for the operating frequency of antenna, its return loss maximum has reached-28 dB, and bandwidth is about 270MHz.Fig. 5 has shown the electric adjustability skew of the two adjustable micro-strip paster antenna operating frequencies of magnetoelectricity, and when externally-applied magnetic field was fixed as 125.6 Oe, there was the electric tunable characteristic of approximately linear in its electric field E in-10 kV/cm to 10 kV/cm scopes.
Claims (5)
1. the two adjustable microstrip antennas of magnetoelectricity, is characterized in that, it comprises magnetoelectricity laminate substrate (1), electromagnet (3), microstrip feed line (4), ferromagnetic phase (5), piezoelectric phase (6); Magnetoelectricity laminate substrate (1) is respectively from top to bottom ferromagnetic phase (5) and piezoelectric phase (6), and ferromagnetic phase (5) and piezoelectric phase (6) pass through epoxy resin bonding; Be coated with respectively the layer of metal film on former and later two side surface faces of piezoelectric phase (6), be first layer metal film (7), second layer metal film (8), the lower surface ground connection of piezoelectric phase (6), the upper surface of ferromagnetic phase (5) is made metal micro-strip paster (2) by the photoetching corrosion method, this metal micro-strip paster (2) is used as little band radiating element, metal micro-strip paster (2) is connected by microstrip feed line (4), places a pair of electromagnet (3) at the two ends, left and right of magnetoelectricity laminate substrate (1).
2. the two adjustable microstrip antennas of magnetoelectricity according to claim 1, is characterized in that, described first layer metal film (7), second layer metal film (8) are gold thin film or silver-colored film.
3. the two adjustable microstrip antennas of magnetoelectricity according to claim 1, is characterized in that, described ferromagnetic phase (5) is yttrium iron garnet YIG, and piezoelectric phase (6) is lead zirconate titanate PZT.
4. the two adjustable microstrip antennas of magnetoelectricity according to claim 1, is characterized in that, described metal micro-strip paster (2) is the mountain font.
5. the two adjustable microstrip antennas of magnetoelectricity according to claim 1, is characterized in that, applies external voltage by described first layer metal film (7), second layer metal film (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625740 CN202949039U (en) | 2012-11-23 | 2012-11-23 | Magnetically and electrically adjustable micro-strip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625740 CN202949039U (en) | 2012-11-23 | 2012-11-23 | Magnetically and electrically adjustable micro-strip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949039U true CN202949039U (en) | 2013-05-22 |
Family
ID=48424723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625740 Withdrawn - After Issue CN202949039U (en) | 2012-11-23 | 2012-11-23 | Magnetically and electrically adjustable micro-strip antenna |
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| CN (1) | CN202949039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946005A (en) * | 2012-11-23 | 2013-02-27 | 中国计量学院 | Magnetically and electrically-adjustable microstrip antenna and adjusting method thereof |
| CN114251336A (en) * | 2021-11-05 | 2022-03-29 | 湖北塞思博科技有限公司 | Preparation method and detection method of cantilever beam structure magnetoelectric antenna and magnetoelectric antenna |
-
2012
- 2012-11-23 CN CN 201220625740 patent/CN202949039U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946005A (en) * | 2012-11-23 | 2013-02-27 | 中国计量学院 | Magnetically and electrically-adjustable microstrip antenna and adjusting method thereof |
| CN102946005B (en) * | 2012-11-23 | 2015-06-17 | 中国计量学院 | Magnetically and electrically-adjustable microstrip antenna and adjusting method thereof |
| CN114251336A (en) * | 2021-11-05 | 2022-03-29 | 湖北塞思博科技有限公司 | Preparation method and detection method of cantilever beam structure magnetoelectric antenna and magnetoelectric antenna |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130522 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |