CN201946755U - Parallel plate antenna based on principle of Fabry resonant cavity - Google Patents
Parallel plate antenna based on principle of Fabry resonant cavity Download PDFInfo
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- CN201946755U CN201946755U CN2011200170396U CN201120017039U CN201946755U CN 201946755 U CN201946755 U CN 201946755U CN 2011200170396 U CN2011200170396 U CN 2011200170396U CN 201120017039 U CN201120017039 U CN 201120017039U CN 201946755 U CN201946755 U CN 201946755U
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- parallel
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- resonant cavity
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Abstract
The utility model discloses a parallel plate antenna based on the principle of Fabry resonant cavity, which is characterized in that: the parallel plate antenna comprises two metal plates, a reflecting plate and at least one feed probe, wherein the metal plates are parallel to each other, the reflecting plate is connected between the two metal plates, the at least one feed probe is arranged on the reflecting plate, the reflecting plate and the two metal plates consist of a semi-open Fabry resonant cavity, and the feed probe is arranged in the Fabry resonant cavity. The parallel plate antenna has the advantages of being convenient to feed, adopting simple structure, being easy to control the frequency, having low tolerance requirement, being suitable for mass production and the like; and real data show that the parallel plate antenna in the utility model can work to an ultrahigh even millimeter wave frequency band.
Description
[technical field]
The utility model belongs to mobile communication base station and terminal antenna field, and being specifically related to a kind of frequency can simple and easy control and can be operated in the single-polarized antenna of high frequency range.
[technical background]
The fast development of modern wireless telecommunications makes that frequency spectrum resource is more and more crowded, develops the wireless telecommunication system and the dual-mode antenna of high band more and even millimeter wave frequency band, and is extremely urgent.Antenna technology is very various at present, the millimeter wave frequency bands of can both working such as slot antenna, microstrip antenna, medium resonator antenna, lens antenna.Common feature of these millimeter wave antennas is that size is generally very little and very high to requirement on machining accuracy, because the processing tolerance requires the minimum very bad control of antenna resonant frequency that makes.
David M.Pozar proposes two parallel metal sheets in " Microwave Engineering " book can constitute a kind of Fabry resonator, and this resonator has high Q value, and can be operated in high frequency ranges such as millimeter wave and submillimeter wave.The utility model utilizes Fabry resonant cavity principle to propose a kind of simple in structure, easy parallel-plate antenna of feed just; antenna resonant frequency can be controlled by the parallel-plate spacing simply; size was still bigger when antenna was operated in millimeter wave frequency band; reduce the requirement of processing tolerance greatly, help large-scale production in batches.
[utility model content]
The purpose of this utility model is too small, the demanding shortcoming of processing tolerance of antenna size that solves higher frequency band, proposes a kind of simple in structure, feed easily and to the millimeter wave antenna of requirement on machining accuracy suitable batch large-scale production on the low side.
The utility model is achieved in that
A kind of parallel-plate antenna based on Fabry resonant cavity principle, it comprises two metallic plates that are parallel to each other, be connected in the reflecting plate between these two metallic plates, and be located at least one feed probes on this reflecting plate, described reflecting plate and two metallic plates constitute semi-open Fabry resonant cavity, and described feed probes is located in this Fabry resonant cavity.
Resonator in two parallel placed metal plate constructible method cloth, the technical solution of the utility model is utilized image theory, the size of introducing reflecting plate and further dwindling parallel metal sheet, introduce feed probes mechanics cloth atrium parallel-plate antenna in the middle of parallel metal sheet, antenna resonant frequency can simply be controlled by the parallel-plate spacing.The parallel-plate antenna that the technical program proposes has that feed is convenient, simple in structure, FREQUENCY CONTROL is simple and easy and the tolerance requirement is low, be fit to beneficial effects such as batchs process, measured data shows parallel-plate the antenna of the present utility model high and even millimeter wave frequency band of can working.
As the improvement of technique scheme, further technical scheme of the present utility model is as follows:
Further, above-mentioned reflecting plate is perpendicular to the described two metallic plate settings that are parallel to each other.
Further, above-mentioned metallic plate profile is a rectangle.
Further, the length of above-mentioned metallic plate is 3.376 λ, and width is 1.688 λ.
Further, the said reflection plate profile is a rectangle, and its length is 3.376 λ, and width is 1.384 λ.
Further, the spacing of above-mentioned parallel metal sheet is 0.523 λ.
Further, above-mentioned feed probes is the L type.
Further, above-mentioned L type feed probes horizontal length is 0.422 λ, and vertical length is 0.591 λ.
Further, above-mentioned feed probes is spiral, little band or dielectric resonator.
Further, above-mentioned feed probes afterbody and reflecting plate join domain are connected with sub-miniature A connector.
Technique scheme is that the metallic plate profile is a rectangle, and two situations that the parallel metal sheet profile is identical, but not as limit, two parallel metal sheet profiles of the present utility model can be inequality, and can be other shapes such as irregular polygon.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the end view of the utility model in the Y direction;
Fig. 3 is the end view of the utility model at directions X;
Fig. 4 is a vertical view of the present utility model;
Fig. 5 is antenna measurement in kind of the present utility model and emulation comparison diagram;
Fig. 6 is that antenna parallel-plate spacing size changes corresponding emulation stickogram in the utility model.
[embodiment]
The utility model is described in further detail with concrete case study on implementation below in conjunction with accompanying drawing, but not as the qualification to technical solutions of the utility model.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the parallel-plate antenna that present embodiment proposes based on Fabry resonant cavity principle, constitute by two parallel rectangular metal plate, be designated first metallic plate 1 and second metallic plate 2 respectively, the length L of metallic plate=40mm=3.376 λ, width H=20mm=1.688 λ, the spacing d=6.2mm=0.523 λ of two parallel metal sheets.
As shown in Figure 2, the L type probe 4 of parallel-plate antenna feed is placed between the first metallic plate plate 1 and second metallic plate 2, its horizontal length Lh=5mm=0.422 λ, vertical length Lv=7mm=0.591 λ.
As shown in Figure 4, described first metallic plate 1 and second metallic plate 2 are connected on the reflecting plate 3 of a rectangle, the length L of reflecting plate 3=40mm=3.376 λ, width G=16.4mm=1.384 λ.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the afterbody of L type feed probes 4 is linked on the sub-miniature A connector 5, and sub-miniature A connector 5 links to each other with reflecting plate 3.
Fig. 5 is antenna measurement in kind of the present utility model and emulation comparison diagram, and the actual measurement reflection coefficient and the simulation numerical of antenna are very approaching, are operated in millimeter wave frequency band even show antenna of the present utility model, and manufacturing tolerance is required neither be very high.
Fig. 6 is that the spacing size of first metallic plate 1 and second metallic plate 2 in the utility model changes pairing emulation reflection coefficient.Fig. 5 shows the parallel-plate antenna resonant frequency that the utility model proposes directly by the decision of parallel-plate spacing, and the big more frequency of spacing is low more, resonance frequency f ≈ 0.523c/d, and wherein c is the airborne light velocity.
The technical scheme of present embodiment is utilized image theory, and the size of introducing reflecting plate and further dwindling parallel metal sheet is introduced feed probes mechanics cloth atrium parallel-plate antenna in the middle of parallel metal sheet, and antenna resonant frequency can simply be controlled by the parallel-plate spacing.The parallel-plate antenna that the technical program proposes has that feed is convenient, simple in structure, FREQUENCY CONTROL is simple and easy and the tolerance requirement is low, be fit to beneficial effects such as batchs process, measured data shows parallel-plate the antenna of the present utility model high and even millimeter wave frequency band of can working.
Of particular note: be a kind of execution mode that provides in conjunction with particular content as mentioned above, can not assert that concrete enforcement of the present utility model is confined to these explanations.All approximate, identical with the utility model structure, device etc., or, all should be considered as protection range of the present utility model for making some technology deduction or replace under the utility model design prerequisite.
Claims (10)
1. parallel-plate antenna based on Fabry resonant cavity principle, it is characterized in that: it comprises two metallic plates that are parallel to each other, be connected in the reflecting plate between these two metallic plates, and be located at least one feed probes on this reflecting plate, described reflecting plate and two metallic plates constitute semi-open Fabry resonant cavity, and described feed probes is located in this Fabry resonant cavity.
2. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 1 is characterized in that: described reflecting plate is perpendicular to the described two metallic plate settings that are parallel to each other.
3. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 1 is characterized in that: described metallic plate profile is a rectangle.
4. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 3 is characterized in that: the length of described metallic plate is 3.376 λ, and width is 1.688 λ.
5. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 2 is characterized in that: described reflecting plate profile is a rectangle, and its length is 3.376 λ, and width is 1.384 λ.
6. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 1 is characterized in that: the spacing of described parallel metal sheet is 0.523 λ.
7. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 1 is characterized in that: described feed probes is the L type.
8. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 7 is characterized in that: the horizontal length of described L type feed probes is 0.422 λ, and vertical length is 0.591 λ.
9. the parallel-plate antenna based on Fabry resonant cavity principle according to claim 7 is characterized in that: described feed probes is spiral, little band or dielectric resonator.
10. according to each described parallel-plate antenna based on Fabry resonant cavity principle of claim 1-8, it is characterized in that: described feed probes afterbody and reflecting plate join domain are connected with sub-miniature A connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200170396U CN201946755U (en) | 2011-01-15 | 2011-01-15 | Parallel plate antenna based on principle of Fabry resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200170396U CN201946755U (en) | 2011-01-15 | 2011-01-15 | Parallel plate antenna based on principle of Fabry resonant cavity |
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| Publication Number | Publication Date |
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| CN201946755U true CN201946755U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200170396U Expired - Lifetime CN201946755U (en) | 2011-01-15 | 2011-01-15 | Parallel plate antenna based on principle of Fabry resonant cavity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097685A (en) * | 2011-01-15 | 2011-06-15 | 广东通宇通讯股份有限公司 | Parallel plate antenna based on Fabry resonant cavity principle |
| CN104134860A (en) * | 2014-07-02 | 2014-11-05 | 上海大学 | Single-layer dielectric-slab Fabry-Perot antenna adopting millimeter wave band coplane waveguide feed |
-
2011
- 2011-01-15 CN CN2011200170396U patent/CN201946755U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097685A (en) * | 2011-01-15 | 2011-06-15 | 广东通宇通讯股份有限公司 | Parallel plate antenna based on Fabry resonant cavity principle |
| CN104134860A (en) * | 2014-07-02 | 2014-11-05 | 上海大学 | Single-layer dielectric-slab Fabry-Perot antenna adopting millimeter wave band coplane waveguide feed |
| CN104134860B (en) * | 2014-07-02 | 2016-10-19 | 上海大学 | The single-layer medium plate Fabry-Perot antenna of millimere-wave band coplanar wave guide feedback |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |