CN205303679U - Micro -strip antenna - Google Patents
Micro -strip antenna Download PDFInfo
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- CN205303679U CN205303679U CN201520654446.6U CN201520654446U CN205303679U CN 205303679 U CN205303679 U CN 205303679U CN 201520654446 U CN201520654446 U CN 201520654446U CN 205303679 U CN205303679 U CN 205303679U
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Abstract
The utility model discloses a micro -strip antenna, including feed microstrip line, medium base plate and ground plate, the feed microstrip line adopts the eccentric structure of double -line, and this antenna adopts 50 ohm of Y type microstrip lines of constituteing with 100 ohm of microstrip lines to carry out the feeder, opens one rectangle gap at the ground plate and produces and radiate, and feeder and gap are the axial symmetry about the jackshaft of dielectric substrate. The beneficial effects of the utility model are that: this micro -strip antenna has the bandwidth and extends, miniaturizes, easily processes, is applicable to batch production, advantage with low costs.
Description
Technical field
This utility model relates to antenna, and more specifically, it relates to a kind of microstrip antenna.
Background technology
Micro-strip paster antenna is most basic and modal microstrip antenna form, and it is by radiation patch, earth plate and is positioned at medium substrate between the two and completes. Microstrip slot antenna is on the basis of micro-strip paster antenna, utilizes the gap being opened on earth plate to produce radiation, and feed is to be completed by the feeder line of the microstrip line or other forms that are positioned at substrate opposite side. Microstrip slot antenna has accepted the advantage of micro-strip paster antenna, has that volume is little, lightweight, is prone to adopt printed circuit technique to carry out producing in batches, processing the advantages such as simplicity.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and provides a kind of microstrip antenna.
The purpose of this utility model is achieved through the following technical solutions. This microstrip antenna, including feeding microstrip line, medium substrate and earth plate, feeding microstrip line adopts two-wire eccentric structure, the Y type microstrip line of this antenna employing 50 ohm and 100 ohm microstrip composition carries out feeder line, open a rectangular aperture at earth plate and produce radiation, feeder line and gap about medium substrate jackshaft axisymmetricly.
Described medium substrate is dielectric constant be 4.4 FR-4 epoxy glass-fiber-fabric.
The beneficial effects of the utility model are: this microstrip antenna has with wide, miniaturization, is prone to processing, is applicable to batch production, advantage that cost is low.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model cross-sectional view.
Fig. 3 is this utility model simulation result schematic diagram.
Description of reference numerals: feeding microstrip line 1, medium substrate 2, earth plate 3.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further.
This microstrip antenna described in the utility model, it is adaptable to the D frequency range of 4G, including feeding microstrip line 1, medium substrate 2 and earth plate 3, feeding microstrip line 1 adopts two-wire eccentric structure, has miniaturization, with wide advantage. Eccentric feeding microstrip line reduces compared with the microstrip lines degree of apex drive, and radiation reduces, and reduces thus reaching radiation resistance. Being 1.4mm by calculating 50 ohm microstrip live widths, 100 ohm microstrip live widths are 0.4mm; The rectangular aperture opening one 27.6mm �� 13.5mm on earth plate produces radiation.Feeder line and gap about medium substrate jackshaft axisymmetricly. This microstrip antenna is linear polarized antenna. This micro-strip antenna adopts the mode of dual feed, increases the resonance point of antenna, makes resonance point close by regulating the parameter of antenna, thus reaching to widen the purpose of the beamwidth of antenna. On earth plate, the width in gap on the bandwidth of antenna, resonant frequency, input impedance impact relatively greatly, changes the input impedance of antenna, increased bandwidth, regulates resonant frequency thereby through the width increasing gap simultaneously. For narrow slot, the general value of length L in the gap on earth plate is �� g/2, but actually consider the width impact on resonance point in the border impact on electric field in gap, gap, in design and simulation, the size of L should be floated 2 �� L, �� L is that transmission line is affected length by border and gap, i.e. L=�� g/2 �� 2 �� L.
Described medium substrate 2 is the FR-4 epoxy glass-fiber-fabric that dielectric constant is 4.4, and substrate dielectric constant can ensure that more greatly in the dielectric layer that electromagnetic field concentrates between microstrip line and gap and transmits, and length, width and height are respectively as follows: 40mm, 38mm, 1mm.
The illustraton of model of this antenna as shown in Figure 1 by feeding microstrip line 1, medium substrate 2, dig apertured earth plate 3 and form. Fig. 2 is the profile of this model.
The simulation result of this antenna such as Fig. 3, < effective bandwidth of-10dB is 2.3G-3.2G to return loss, relative bandwidth is 0.9/2.6=34.6%, bandwidth substantially strengthens compared with simple micro-strip paster antenna, the antenna pattern of antenna can be seen that this antenna is omnidirectional antenna, and the gain of this antenna is 2.7dBi.
In addition to the implementation, this utility model can also have other embodiments. All employings are equal to replacement or the technical scheme of equivalent transformation formation, all fall within the protection domain of this utility model requirement.
Claims (2)
1. a microstrip antenna, it is characterized in that: include feeding microstrip line (1), medium substrate (2) and earth plate (3), feeding microstrip line (1) adopts two-wire eccentric structure, the Y type microstrip line of this antenna employing 50 ohm and 100 ohm microstrip composition carries out feeder line, open a rectangular aperture at earth plate (3) and produce radiation, feeder line and gap about medium substrate jackshaft axisymmetricly.
2. microstrip antenna according to claim 1, it is characterised in that: described medium substrate (2) is FR-4 epoxy glass-fiber-fabric that dielectric constant is 4.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654446.6U CN205303679U (en) | 2015-08-27 | 2015-08-27 | Micro -strip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654446.6U CN205303679U (en) | 2015-08-27 | 2015-08-27 | Micro -strip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205303679U true CN205303679U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520654446.6U Active CN205303679U (en) | 2015-08-27 | 2015-08-27 | Micro -strip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205303679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534890A (en) * | 2019-09-07 | 2019-12-03 | 电子科技大学 | The super skin antenna of low section dual polarization |
| CN110600858A (en) * | 2019-08-30 | 2019-12-20 | 维沃移动通信有限公司 | Antenna unit and terminal equipment |
-
2015
- 2015-08-27 CN CN201520654446.6U patent/CN205303679U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600858A (en) * | 2019-08-30 | 2019-12-20 | 维沃移动通信有限公司 | Antenna unit and terminal equipment |
| CN110534890A (en) * | 2019-09-07 | 2019-12-03 | 电子科技大学 | The super skin antenna of low section dual polarization |
| CN110534890B (en) * | 2019-09-07 | 2020-11-27 | 电子科技大学 | Low-profile dual-polarized super-surface antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |