CN203553346U

CN203553346U - Planar antenna structure

Info

Publication number: CN203553346U
Application number: CN201320738751.4U
Authority: CN
Inventors: 杨才毅
Original assignee: Cirocomm Technology Corp
Current assignee: Cirocomm Technology Corp
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-04-16
Anticipated expiration: 2023-11-21

Abstract

The utility model discloses a planar antenna structure. The planar antenna structure comprises a carrier, a radiation metal surface, a signal feeding portion and a grounding metal surface. The radiation metal surface is arranged on the top surface of the carrier. The radiation metal surface has two bevel edges which are arranged in a diagonal manner and four straight line edges. The signal feeding portion is in electrical connection with the radiation metal surface. The signal feeding portion runs through the carrier, and passes through the back surface of the carrier and not in electrical connection with the grounding metal surface on the back surface of the carrier. A detection device is used to control a laser engraving machine to perform dotted line edge cutting on the four straight line edges or two straight line edges of the radiation metal surface in the on/off control mode to generate the planar antenna structure having two dotted line edges or four dotted line edges after frequency variation adjustment.

Description

Flat plate antenna structure

Technical field

The utility model relates to a kind of antenna, espespecially a kind of flat plate antenna structure with the dotted line limit after frequency variation is adjusted.

Background technology

Known, on current earthenware slab antenna, there is a carrier, on the surface of this carrier, there is a radiation metal face, the back side of this carrier has a grounding metal plane, has a signal feed side through this carrier and this radiation metal face electrically connect on this carrier.After earthenware slab antenna completes, primary work is exactly whether the electrical characteristic that detects this earthenware slab antenna meets making standard, because earthenware slab antenna can be inconsistent because of the size of radiation sheet metal printing when making, and produce different electrical characteristics, so the earthenware slab antenna completing just must carry out the detection of electrical characteristic.

When earthenware slab antenna detects, this earthenware slab antenna is electrically connected on the joint of this wireless frequency (RF) module testing coaxial cable, for instrument, read the electrical characteristic of this earthenware slab antenna, this instrument shows the Smith curve figure of this electrical characteristic simultaneously.After Smith curve figure shows, tester will see that in visual mode whether the shown Smith curve figure of instrument is identical with making standard, if when not identical, tester just must be in artificial mode hand-held correction specially put the radiation metal face of earthenware slab antenna revised to adjustment, be adapted to the shown Smith curve figure of this instrument identical with making standard, just stop finishing action.

Because the electrical characteristic of above-mentioned earthenware slab antenna is being revised while adjusting, with laser engraving machine, the Huo Rener limit, arbitrary limit on four limits of this radiation metal face to be cut, owing to being subject to the laser of laser engraving machine, set restriction, cause and cannot carry out trickleer frequency cutting adjustment, therefore allow the frequency variation adjustment of plate aerial be restricted.

Utility model content

The purpose of this utility model is to provide a kind of flat plate antenna structure, and it can carry out less antenna frequencies variable quantity adjustment, and for the characteristic of the Smith curve (Smith Chart) of feed-in impedance, can not produce excessive impact.

In order to achieve the above object, the utility model provides a kind of flat plate antenna structure, comprising:

One carrier, has an end face on it;

One radiation metal face, is located on the end face of this carrier;

Wherein, have two dotted line limits on this radiation metal face, take this two dotted lines limit is frequency variation adjustment.

The carrier of this flat plate antenna structure is ceramic material, signal feed-in part and this radiation metal face on this carrier with a column shape are electrically connected, this signal feed-in part runs through this carrier back side, the grounding metal plane electrically connect that this signal feed-in part does not have with this carrier back side.

On this radiation metal face, more comprise that two are the hypotenuse at diagonal angle.

This radiation metal face more comprises two straight lines, and this two straight line connects one hypotenuse and this two dotted lines limit.

This dotted line limit is formed by connecting by a plurality of cut length and a plurality of real segment.

This dotted line limit is to be located on this radiation metal face with aliquot.

This two dotted lines limit is vertical connection mutually or parallel correspondence is located on this radiation metal face.

The depth of cut of this cut length is more than or equal to 0.01 ㎜.

A flat plate antenna structure, comprising:

One carrier, has an end face on it;

One radiation metal face, is located on the end face of this carrier;

Wherein, have four dotted line limits on this radiation metal face, take this four dotted lines limit is frequency variation adjustment.

This two hypotenuse connects this four dotted lines limit.

The depth of cut of this cut length is more than or equal to 0.01 ㎜.

Adopt after such scheme, the utility model flat plate antenna structure is by being located at radiation metal face on the end face of this carrier, and make on this radiation metal face, to there are two dotted line limits, it has solved the part that single cut amount cannot fine tuning, utilize laser to add man-hour, to control the setting of the switching over of laser engraving machine, the effect on dotted line limit is cut in generation, reduce the cutting size of single cutting quantity, from analog result and experimental result, it can carry out less antenna frequencies variable quantity adjustment, and the characteristic for the Smith curve (Smith Chart) of feed-in impedance, can not produce excessive impact.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of plate aerial correction method of adjustment of the present utility model;

Fig. 2 is that the radiation metal face of plate aerial of the present utility model does not cut schematic diagram;

Fig. 3 is the dotted line limit cutting schematic top plan view of two straight lines of the radiation metal face of plate aerial of the present utility model;

Fig. 4 is the dotted line limit cutting schematic top plan view of four straight lines of the radiation metal face of plate aerial of the present utility model;

Fig. 5 is the Smith curve result schematic diagram that the radiation metal face of Fig. 3 cuts the dotted line limit finishing of two straight lines;

Fig. 6 is the Smith curve result schematic diagram that the radiation metal face of Fig. 4 cuts the dotted line limit finishing of four straight lines.

Embodiment

Relevant the technical content and a detailed description of the present utility model, now coordinate graphic being described as follows:

Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, for the flow process of plate aerial correction method of adjustment of the present utility model and the radiation metal face of plate aerial does not cut and two straight lines of the radiation metal face of plate aerial and the dotted line limit of four straight lines cutting schematic top plan view.As shown in the figure: plate aerial correction method of adjustment of the present utility model, first, as step 100, have a plate aerial completing 1, this plate aerial 1 has a carrier 11, on the end face of this carrier 11, have a radiation metal face 12, this radiation metal face 12 has two and is clinodiagonal hypotenuse 121 and four straight lines 122.The another signal feed-in part 13 on this carrier 11 with a column shape is electrically connected with this radiation metal face 12, this signal feed-in part 13 runs through carrier, and through these carrier 11 back side (not shown), and not with the grounding metal plane (not shown) electrically connect at these carrier 11 back sides.In this is graphic, this carrier 11 is ceramic material.

Step 102, sets the parameter value of the electrical characteristic (as centre frequency, bandwidth and reflection loss return loss) of this plate aerial in checkout gear, the display on checkout gear will show Smith curve figure and s parametric plot simultaneously.In this is graphic, this checkout gear (for traditional technology is stated at this few speech) at least includes: a microprocessing unit, a storage element, an operation interface and a display.

Step 104, the measurement jig (under be called RF module testing tool) that plate aerial 1 is placed in to frequency modulation (RF, the Radio Frequency) assembly of checkout gear is upper, makes signal feed side and the RF module testing tool electrically connect of this earthenware slab antenna.In this is graphic, this RF module testing tool is frequency modulation coaxial cable joint, with the signal feed side electrically connect of this earthenware slab antenna.

Step 106, when plate aerial 1 needs working frequency variable quantity to adjust, with this checkout gear, drive laser engraving machine action, at this checkout gear, driving this laser engraving machine is to control with the control model of Push And Release, make this laser engraving machine carry out dotted line limit cutting mode to four straight lines 122 or any two straight lines 122 of the radiation metal face 12 of plate aerial 1, to form the effect of dotted line limit 122a, when this dotted line limit 122 of cutting, need cut with aliquot, to carry out the frequency variation adjustment (as shown in Figure 3, Figure 4) of plate aerial 1.

Step 108, after the frequency variation of the radiation metal face of this plate aerial is adjusted, by checkout gear detect frequency variation adjustment whether meet take, if do not meet, be back to again in this step 106; If it is required that frequency variation adjustment meets, it is the frequency variation adjustment action of detection of end and plate aerial.

Refer to Fig. 3, Fig. 5, the Smith curve result schematic diagram of cutting the dotted line limit finishing of two straight lines for the dotted line limit cutting schematic top plan view of two straight lines and the radiation metal face of Fig. 3 of the radiation metal face of plate aerial of the present utility model.As shown in the figure: plate aerial 1 of the present utility model is after laser engraving machine engraving, this plate aerial 1 has a carrier 11, the end face of this carrier 11 has a radiation metal face 12, this radiation metal face 12 has two and is the hypotenuse 121 that diagonally opposing corner is corresponding, on this two hypotenuse 121, be connected with two straight lines 122 and two dotted line limit 122a, this two dotted line limit 122a is vertical connection mutually or parallel correspondence is connected with another two straight lines 122, and this dotted line limit 122a is formed by connecting by a plurality of cut length 1221a and a plurality of real segment 1222a.This cut length 1221a is also excised by laser engraving machine for metal material, makes the end face of carrier 11 exposed.

And depth of cut (or width) D of this cut length 1221a will have influence on the frequency of plate aerial 1 and adjust variable quantity, spy enumerates following table explanation:

Therefore,, after above-mentioned explanation, the depth of cut D of the laser cut length 1221a on known dotted line of the present utility model limit 122 is more than or equal to 0.01 ㎜.

Refer to Fig. 4, Fig. 6, the Smith curve result schematic diagram of cutting the dotted line limit finishing of four straight lines for the dotted line limit cutting schematic top plan view of four straight lines and the radiation metal face of Fig. 4 of the radiation metal face of another plate aerial of the present utility model.As shown in the figure: plate aerial 1 of the present utility model is after laser engraving machine engraving, this plate aerial 1 has a carrier 11, the end face of this carrier 11 has a radiation metal face 12, this radiation metal face 12 has two and is the hypotenuse 121 that diagonally opposing corner is corresponding, this two hypotenuse 121 connects four dotted line limit 122a, and this dotted line limit 122a is formed by connecting by a plurality of cut length 1221a and a plurality of real segment 1222a.

Figure 2013207387514100002DEST_PATH_IMAGE004

Therefore,, after above-mentioned explanation, the depth of cut D of the cut length 1221a on known dotted line of the present utility model limit 122 is more than or equal to 0.01 ㎜.

Above are only preferred embodiment of the present utility model, be not used for limiting the scope that the utility model is implemented.Be that all equalizations of doing according to the utility model claim change and modify, be all the utility model the scope of the claims and contain.

Claims

1. a flat plate antenna structure, is characterized in that: comprising:

One carrier, has an end face on it;

One radiation metal face, is located on the end face of this carrier;

2. flat plate antenna structure as claimed in claim 1, it is characterized in that: the carrier of this flat plate antenna structure is ceramic material, signal feed-in part and this radiation metal face on this carrier with a column shape are electrically connected, this signal feed-in part runs through this carrier back side, the grounding metal plane electrically connect that this signal feed-in part does not have with this carrier back side.

3. flat plate antenna structure as claimed in claim 2, is characterized in that: on this radiation metal face, more comprise that two are the hypotenuse at diagonal angle.

4. flat plate antenna structure as claimed in claim 3, is characterized in that: this radiation metal face more comprises two straight lines, and this two straight line connects one hypotenuse and this two dotted lines limit.

5. flat plate antenna structure as claimed in claim 4, is characterized in that: this dotted line limit is formed by connecting by a plurality of cut length and a plurality of real segment.

6. flat plate antenna structure as claimed in claim 5, is characterized in that: this dotted line limit is to be located on this radiation metal face with aliquot.

7. flat plate antenna structure as claimed in claim 6, is characterized in that: this two dotted lines limit is vertical connection mutually or parallel correspondence is located on this radiation metal face.

8. flat plate antenna structure as claimed in claim 7, is characterized in that: the depth of cut of this cut length is more than or equal to 0.01 ㎜.

9. a flat plate antenna structure, is characterized in that: comprising:

One carrier, has an end face on it;

One radiation metal face, is located on the end face of this carrier;

10. flat plate antenna structure as claimed in claim 9, it is characterized in that: the carrier of this flat plate antenna structure is ceramic material, signal feed-in part and this radiation metal face on this carrier with a column shape are electrically connected, this signal feed-in part runs through this carrier back side, the grounding metal plane electrically connect that this signal feed-in part does not have with this carrier back side.

11. flat plate antenna structures as claimed in claim 10, is characterized in that: on this radiation metal face, more comprise that two are the hypotenuse at diagonal angle.

12. flat plate antenna structures as claimed in claim 11, is characterized in that: this two hypotenuse connects this four dotted lines limit.

13. flat plate antenna structures as claimed in claim 12, is characterized in that: this dotted line limit is formed by connecting by a plurality of cut length and a plurality of real segment.

14. flat plate antenna structures as claimed in claim 13, is characterized in that: this dotted line limit is to be located on this radiation metal face with aliquot.

15. flat plate antenna structures as claimed in claim 14, is characterized in that: the depth of cut of this cut length is more than or equal to 0.01 ㎜.