CN203644949U - Double-frequency micro-strip antenna applied to GPS and WLAN - Google Patents
Double-frequency micro-strip antenna applied to GPS and WLAN Download PDFInfo
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- CN203644949U CN203644949U CN201320839023.2U CN201320839023U CN203644949U CN 203644949 U CN203644949 U CN 203644949U CN 201320839023 U CN201320839023 U CN 201320839023U CN 203644949 U CN203644949 U CN 203644949U
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Abstract
The utility model discloses a double-frequency micro-strip antenna applied to a GPS and a WLAN. The double-frequency micro-strip antenna comprises an upper micro-strip antenna, a lower micro-strip antenna, a feed metal micro-strip line and a feed port. The lower micro-strip antenna comprises a common metal grounding surface and a lower micro-strip antenna substrate. The common metal grounding surface is provided with a first rectangular gap relatively large in size and a second rectangular gap relatively small in size. The feed metal micro-strip line is arranged on the back side of the lower micro-strip antenna substrate. The upper micro-strip antenna is laminated on the common metal grounding surface, the upper micro-strip antenna is coupled with the feed metal micro-strip line for feeding through the relatively small gap on the common metal grounding surface, and a radiation unit of the upper micro-strip antenna is a square metal sheet which is chamfered at the both ends of one diagonal of the square metal sheet. The gap relatively large in size serves as a radiation unit of the lower micro-strip antenna, and the lower micro-strip antenna directly feeds through the feed metal micro-strip line. The double-frequency micro-strip antenna is small in size, simple in structure, easy to machine, easy to be integrated with a circuit and applicable to the GPS and the WLAN at the same time.
Description
Technical field
The utility model belongs to double-frequency micro-strip antenna technical field, more specifically, relates to the double-frequency micro-strip antenna of a kind of GPS of being applied to and WLAN.
Background technology
In recent years, global positioning system (Global Positioning System) and wireless local area network technology (Wireless Local Area Networks) have obtained fast development at civil area, and the development of wireless technology also allows frequency spectrum resource become more and more nervous.Therefore in Modern wireless communication, the double frequency of antenna, multiband application are extremely paid attention to.
Antenna in global positioning system all requires to have the covering power of approximate hemisphere, and should have the polarization mode of circular polarization; Antenna in WLAN (wireless local area network) requires to have the radiation characteristic of approximate omnidirectional.The dual-band antenna of the employing single port feed of existing design generally can only obtain similar antenna pattern characteristic at two operating frequency places, be that antenna can only all produce radiation at a half space at two Frequency point places, or all at two omnidirectional radiations that half space radiation formation is approximate.Therefore the dual-band antenna of existing employing single port feed structure is difficult to the feature of the feature of gps antenna and WLAN antenna to integrate, and adopts two-terminal feeding must make whole antenna structure become complicated, and size strengthens, not easy of integration etc.
Utility model content
For above defect or the Improvement requirement of prior art, the utility model provides the double-frequency micro-strip antenna of a kind of GPS of being applied to and WLAN, its object is only to adopt single port feed structure, but there is the feature of gps antenna (1.575GHz) and the feature of WLAN antenna (2.40 ~ 2.4835GHz) simultaneously, solve thus prior art and adopt two-terminal feeding to cause baroque technical problem.
A kind of GPS of being applied to that the utility model provides and the double-frequency micro-strip antenna of WLAN, comprise upper strata microstrip antenna, lower floor's microstrip antenna, feed metal micro-strip line and feed port; Described upper strata microstrip antenna comprises upper strata microstrip aerial substrate and metal radiation sheet, and described lower floor microstrip antenna comprises lower floor's microstrip aerial substrate and is positioned at the public metal ground plane in described lower floor's microstrip aerial substrate front; In described public metal ground plane, offer the first rectangular aperture and the second rectangular aperture; Described the first rectangular aperture is as the radiating element of described lower floor microstrip antenna, and described the second rectangular aperture is as the radiating element of described upper strata microstrip antenna; Described upper strata microstrip aerial substrate is layered in described public metal ground plane, and the front of described upper strata microstrip aerial substrate is provided with described metal radiation sheet; Described feed metal micro-strip line is positioned at the reverse side of described lower floor microstrip aerial substrate; Described feed port is for welding with coaxial fitting.
Wherein, described feed metal micro-strip line is T character form structure.
Wherein, the size of the first rectangular aperture is larger than the size of described the second rectangular aperture; Described the second rectangular aperture is positioned at the centre position under the microstrip aerial substrate of upper strata, and described the first rectangular aperture is with a certain distance from upper strata microstrip aerial substrate.
Wherein, described the first rectangular aperture is of a size of the half-wavelength of operating frequency.
Wherein, upper strata microstrip antenna carries out aperture-coupled by the second rectangular aperture and described feed metal micro-strip line.
Wherein, metal radiation sheet be square and on foursquare pair of horns position chamfering, described metal radiation sheet is of a size of the half-wavelength at operating frequency place.
The double-frequency micro-strip antenna of what the utility model provided be applied to GPS and WLAN is simple in structure, easily makes, and is easy to circuit integratedly, can meet the feature of gps antenna and the work of WLAN antenna simultaneously.
Accompanying drawing explanation
Fig. 1 is the positive and negative structural representation of the double-frequency micro-strip antenna that is applied to GPS and WLAN that provides of the utility model;
Fig. 2 is the positive and negative structural representation of lower floor's microstrip line of the double-frequency micro-strip antenna that is applied to GPS and WLAN that provides of the utility model;
Fig. 3 is the positive and negative structural representation of the upper strata microstrip line of the double-frequency micro-strip antenna that is applied to GPS and WLAN that provides of the utility model;
Fig. 4 is that the feed metal micro-strip line of the dual-band antenna that provides of the utility model is " T " character form structure schematic diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.In addition,, in each execution mode of described the utility model, involved technical characterictic just can combine mutually as long as do not form each other conflict.
The utility model provides the double-frequency micro-strip antenna of a kind of GPS of being applied to and WLAN, this antenna can be realized the radiation characteristic of circular polarization and approximate hemisphere radiation at GPS operating frequency place, have the antenna pattern of linear polarization and approximate omnidirectional radiation at WLAN operating frequency place; This antenna size is less, simple in structure, makes easily, is easy to integrated.
A kind of GPS of being applied to that the utility model provides and the double-frequency micro-strip antenna of WLAN comprise upper strata microstrip antenna, lower floor's microstrip antenna, feed metal micro-strip line, feed port, upper strata microstrip antenna comprises upper strata microstrip aerial substrate and metal radiation sheet, and lower floor's microstrip antenna comprises lower floor's microstrip aerial substrate and lays respectively at the public metal ground plane in lower floor's microstrip aerial substrate front.In public metal ground plane, have rectangular aperture and a gap that size is relatively little that size is relatively large.Feed metal micro-strip line is positioned in the public metal ground plane of lower floor's microstrip antenna, and is designed to " T " character form structure.The rectangular aperture that in public metal ground plane, size is relatively little is positioned at the centre position under the antenna substrate of upper strata, and the relatively large rectangular aperture of size is with a certain distance from upper strata antenna substrate.The radiation sheet metal quadrate of upper strata microstrip antenna, is of a size of the half-wavelength at operating frequency place, and on pair of horns position chamfering.On public metal ground plate, the size of the relatively large rectangular aperture of size is set to the half-wavelength at corresponding operating frequency place.Dual-band antenna is by " T " font metal micro-strip line feed on lower floor's microstrip aerial substrate, and described feed port and coaxial fitting weld.The corresponding GPS operating frequency of upper strata microstrip antenna, the corresponding WLAN operating frequency of lower floor's microstrip antenna.
The utility model provides the double-frequency micro-strip antenna of a kind of GPS of being applied to and WLAN with respect to prior art, this antenna structure is simple, easily makes, and is easy to circuit integratedly, can meet the feature of gps antenna and the work of WLAN antenna simultaneously.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of GPS of being applied to that the utility model embodiment provides and the double-frequency micro-strip antenna of WLAN comprise lower floor's microstrip antenna 2, upper strata microstrip antenna 1, feed metal micro-strip line 5, feed port 8; Described lower floor microstrip antenna 2 comprises lower floor's microstrip aerial substrate 10, and this substrate front side is provided with public metal ground plane 11; Described upper strata microstrip antenna 1 comprises upper strata microstrip aerial substrate 3, and this substrate layer is stacked in the public metal ground plane 11 of lower floor's microstrip antenna, and front is provided with metal radiation sheet 7.Described feed metal micro-strip line 5 is positioned at the reverse side of lower floor's microstrip aerial substrate 10.Described feed port 8 and coaxial fitting welding.
In the utility model embodiment, the frequency of the corresponding GPS of described upper strata microstrip antenna 1 work, and realize the radiation characteristic of gps antenna requirement; The frequency of the corresponding WLAN of described described lower floor microstrip antenna 2 work, and realize the radiation characteristic of WLAN antenna requirement.Described upper strata microstrip antenna 1 is set to be layered in the public metal ground plane 11 of lower floor's microstrip antenna, and the reflecting plate using public metal ground plane 11 as upper strata microstrip antenna 1 is realized the approximate half space radiation of upper strata microstrip antenna 1; Described upper strata microstrip antenna radiation sheet metal 7 is set to square, and size is set to the half-wavelength of operating frequency, and in pair of horns position 9 one-tenth chamfering forms, to realize the circular polarization radiation of upper strata microstrip antenna; In the public metal ground plane in described lower floor microstrip aerial substrate 10 fronts, 11 incisions have a gap 4 that size is relatively large, as the radiating element of lower floor's microstrip antenna 2, be of a size of the half-wavelength of operating frequency, reflecting plate be not set below this gap, can realize approximate omnidirectional radiation.
In the utility model embodiment, in described public metal ground plane 11, on the relatively large gap 4 of described size, have a gap 6 that size is relatively little; Described upper strata microstrip antenna 1 carries out aperture-coupled by gap 6 and feed metal micro-strip line 5 that in public metal ground plane 11, size is relatively little.Described lower floor microstrip antenna 2 is by 5 direct feeds of feed metal micro-strip line.Described feed metal micro-strip line 5 impedances are set to 50 Ω, become " T " font, meet the requirement of antenna impedance bandwidth.
In the utility model embodiment, the size setting of upper strata microstrip aerial substrate 3 is less than the size of lower floor's microstrip antenna 10, and dielectric constant is set to the dielectric constant higher than lower floor's microstrip aerial substrate 10.
As shown in Figure 2, be lower floor's microstrip antenna of dual-band antenna described in Fig. 1, in figure, 10 is antenna substrate, and 11 is public metal ground plate, and 4 is the relatively large gap of size on public metal ground plate, and 6 is the relatively little gap of size on metal ground plate.
As shown in Figure 3, be the upper strata microstrip antenna of dual-band antenna described in Fig. 1,3 is upper strata microstrip aerial substrate, and 7 is the metal radiation sheet of upper strata microstrip antenna, and 9 is the chamfering position on metal radiation sheet.
As shown in Figure 4, be the feed metal micro-strip line 5 of dual-band antenna described in Fig. 1, structure is " T " font, is positioned at the reverse side of lower floor's microstrip aerial substrate 10.
In the utility model embodiment, the size of upper strata microstrip aerial substrate is less than the size of lower floor's microstrip aerial substrate, and is superimposed upon in the public metal ground plane on lower floor's microstrip antenna, and the dielectric constant of upper strata microstrip aerial substrate will be higher than on lower floor's antenna substrate.Upper strata microstrip antenna and lower floor's microstrip antenna share a metal ground plane, and in metal ground plane, have two rectangular apertures that size is different.The relatively little rectangular aperture of size on metal common ground face is positioned at the centre position under the antenna substrate of upper strata, and the gap that size is relatively large and upper strata antenna substrate are not overlapping, and from there being certain distance.Upper strata microstrip antenna has identical feed port with lower floor microstrip antenna, all carries out feed by the feed metal micro-strip line being positioned on lower floor's antenna substrate.The radiating element of the radiating element of upper strata microstrip antenna and lower floor's microstrip antenna is not coplanar, and the radiating element that upper strata microstrip antenna adopts is the square-shaped metal sheet that has chamfering form, the radiating element that lower floor's microstrip antenna adopts is the larger-size gap having at common ground face.The frequency that the operating frequency of upper strata microstrip antenna is worked corresponding to GPS, the frequency of the corresponding WLAN work of lower floor's microstrip antenna.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within thought of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.Anyone is the shape of the each element of the utility model, model, and the change easily that compound mode is made on the utility model principle basis, has all fallen into protection range of the present utility model.
Claims (6)
1. a double-frequency micro-strip antenna that is applied to GPS and WLAN, is characterized in that, comprises upper strata microstrip antenna (1), lower floor's microstrip antenna (2), feed metal micro-strip line (5) and feed port (8);
Described upper strata microstrip antenna (1) comprises upper strata microstrip aerial substrate (3) and metal radiation sheet (7), and described lower floor microstrip antenna (2) comprises lower floor's microstrip aerial substrate (10) and is positioned at the positive public metal ground plane (11) of described lower floor microstrip aerial substrate (10);
In described public metal ground plane (11), offer the first rectangular aperture (4) and the second rectangular aperture (6); Described the first rectangular aperture (4) is as the radiating element of described lower floor microstrip antenna (2), and described the second rectangular aperture (6) is as the radiating element of described upper strata microstrip antenna (1);
It is upper that described upper strata microstrip aerial substrate (3) is layered in described public metal ground plane (11), and the front of described upper strata microstrip aerial substrate (3) is provided with described metal radiation sheet (7); Described feed metal micro-strip line (5) is positioned at the reverse side of described lower floor microstrip aerial substrate (10); Described feed port (8) is for welding with coaxial fitting.
2. double-frequency micro-strip antenna as claimed in claim 1, is characterized in that, described feed metal micro-strip line (5) is T character form structure.
3. double-frequency micro-strip antenna as claimed in claim 1, is characterized in that, the size of described the first rectangular aperture (4) is larger than the size of described the second rectangular aperture (6); Described the second rectangular aperture (6) is positioned at the centre position under upper strata microstrip aerial substrate (3), and described the first rectangular aperture (4) is with a certain distance from upper strata microstrip aerial substrate (3).
4. the double-frequency micro-strip antenna as described in claim 1-3 any one, is characterized in that, described the first rectangular aperture (4) is of a size of the half-wavelength of operating frequency.
5. the double-frequency micro-strip antenna as described in claim 1-3 any one, is characterized in that, described upper strata microstrip antenna (1) carries out aperture-coupled by the second rectangular aperture (6) and described feed metal micro-strip line (5).
6. double-frequency micro-strip antenna as claimed in claim 1, is characterized in that, described metal radiation sheet (7) be square and on foursquare pair of horns position chamfering, described metal radiation sheet (7) is of a size of the half-wavelength at operating frequency place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839023.2U CN203644949U (en) | 2013-12-18 | 2013-12-18 | Double-frequency micro-strip antenna applied to GPS and WLAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839023.2U CN203644949U (en) | 2013-12-18 | 2013-12-18 | Double-frequency micro-strip antenna applied to GPS and WLAN |
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| Publication Number | Publication Date |
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| CN203644949U true CN203644949U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320839023.2U Withdrawn - After Issue CN203644949U (en) | 2013-12-18 | 2013-12-18 | Double-frequency micro-strip antenna applied to GPS and WLAN |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682646A (en) * | 2013-12-18 | 2014-03-26 | 深圳市振华微电子有限公司 | Double-frequency micro-strip antenna adopting multilayer structure |
| WO2016119739A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
-
2013
- 2013-12-18 CN CN201320839023.2U patent/CN203644949U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682646A (en) * | 2013-12-18 | 2014-03-26 | 深圳市振华微电子有限公司 | Double-frequency micro-strip antenna adopting multilayer structure |
| CN103682646B (en) * | 2013-12-18 | 2016-05-04 | 深圳市振华微电子有限公司 | A kind of double-frequency micro-strip antenna that adopts sandwich construction |
| WO2016119739A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |