TW201624837A - Antenna structure - Google Patents

Abstract

An antenna is disclosed. The antenna has a radiate body, a ground connection pin, a feeding pin, a signal connection member and at least one power supplying unit. The radiate body has a first radiate element, a second radiate element and a first non-metal media, and non-metal media is disposed between the first and second radiate elements. The ground connection pin and the feeding pin are connected with the second radiate portion respectively. The signal connection member connects to the feeding pin and the ground connection pin respectively, and the signal connection member will transfer the signal via feeding pin to the radiate body. The power supplying unit connects with the first and the second radiate elements.

Description

Antenna structure

The present invention relates to an antenna, and more particularly to an antenna structure.

In wireless communication systems, the antenna system acts to convert voltage and current into electromagnetic signals, and is also the main component that directly affects the quality of wireless signal reception and transmission. Therefore, how to choose the appropriate antenna material, structure to match the appearance of the product, transmission characteristics, overall cost, etc. are all issues to be considered in the construction of any wireless communication system.

For example, if it is applied to an electronic device (mobile phone or tablet) that is short and light, it needs to consider its exterior design and use a flat or miniaturized antenna. However, there are still many cases where it is impossible to find a suitable antenna in an existing antenna product, and therefore an antenna design must be specifically designed for the product, resulting in an increase in cost. In addition, if the appearance of the subsequent product or the design of the circuit board is changed, it is inconvenient to re-select the appropriate antenna or adjust the design of the antenna.

Therefore, how to provide an antenna structure that can adjust the radiation waveform and radiation direction of the antenna according to different requirements and reduce the usage of the metal medium is one of the urgent problems to be solved in response to different product requirements.

In view of the above problems, an object of the present invention is to provide an antenna, and more particularly to an antenna structure capable of adjusting a radiation waveform and a radiation direction of an antenna.

To achieve the above object, the present invention can provide an antenna structure including a radiating body, a grounding pin, a feeding pin, a signal connecting member, and at least one power supply unit. The radiation body has a first metal radiation member, a second metal radiation member and a first non-metal medium, and the first non-metal medium is disposed between the first metal radiation member and the second metal radiation member. One end of the grounding pin is electrically connected to the second metal radiating member. One end of the feed pin is electrically connected to the second metal radiating member. The signal connectors are electrically connected to the other end of the feed pin and the other end of the ground pin, respectively. The number connector transmits the received signal to the radiation body through the feed pin. The at least one power supply unit is electrically connected to the first metal radiating member and the second metal radiating member.

In an embodiment of the present invention, wherein at least one power supply unit is capable of causing a voltage difference between the first metal radiating member and the second metal radiating member, the first metal radiating member and the first metal emitting member are conductive through the first non-metallic medium. Two metal radiating parts.

In an embodiment of the invention, the method further includes at least two high frequency filters disposed between the first metal radiating member and the power supply unit and between the second metal radiating member and the power supply unit.

In an embodiment of the invention, at least two DC blocking devices are further disposed between the grounding pin and the signal connecting member and between the feeding pin and the signal connecting member.

In an embodiment of the invention, the grounding pin includes a first grounding pin portion and a second grounding pin portion, the first grounding pin portion is spaced apart from the second grounding pin portion, and the at least one power supply unit is capable of The first ground pin portion and the second ground pin portion have a voltage difference.

In an embodiment of the invention, the second non-metal medium is further disposed between the first ground pin portion and the second ground pin portion.

In an embodiment of the invention, the feed pin further includes a first feed pin portion and a second feed pin portion, and the first feed pin portion and the second feed pin portion are spaced apart from each other, and at least A power supply unit can have a voltage difference between the first feed pin portion and the second feed pin portion.

In an embodiment of the invention, the third non-metal medium is further disposed between the first feed pin portion and the second feed pin portion.

In an embodiment of the invention, the signal connector further includes a first signal connector portion and a second signal connector portion, the first signal connector portion is spaced apart from the second signal connector portion, and the at least one power supply unit is capable of The first signal connector portion and the second signal connector portion are made to have a voltage difference.

In an embodiment of the invention, the fourth non-metal medium is further disposed between the first signal connector portion and the second signal connector portion.

In an embodiment of the invention, the first non-metal medium, the second non-metal medium, the third non-metal medium or the fourth non-metal medium are the same medium.

In an embodiment of the invention, the first non-metal medium, the second non-metal medium, The third non-metal medium or the fourth non-metal medium is a different medium.

In summary, the present invention can be configured by dividing a radiation body into a first metal radiation member and a second metal radiation member, and arranging a non-metal medium between the first metal radiation member and the second metal radiation member. The first metal radiating member and the second metal radiating member are electrically connected to the power supply unit. When the first metal radiating member and the second metal radiating member are electrically connected, an effect similar to that of the conventional antenna structure can be obtained. In addition, the radiation body of the embodiment can also adjust the distance, shape, size, conductive medium or voltage difference of the first metal radiation element and the second metal radiation part according to different products and requirements, thereby providing an adjustable The radiation waveform of the antenna and the purpose of the antenna structure in the radiation direction.

1, 2, 3, 4‧‧‧ antenna structure

11, 21, 31, 41‧‧‧ radiation body

11a, 21a, 31a, 41a‧‧‧ first metal radiator

11b, 21b, 31b, 41b‧‧‧second metal radiator

11c, 21c, 31c, 41c‧‧‧ first non-metallic medium

12, 22, 32, 42‧‧‧ grounding pins

13, 23, 33, 43‧‧‧ feed pins

14, 24, 34, 44‧‧‧ signal connectors

15, 25a, 25b, 35a, 35b, 45a, 45b‧‧‧ power supply unit

16a, 16b, 26a, 26b, 26c, 26d, 36a, 36b, 36c, 36d, 46a, 46b, 46c, 46d‧‧‧ high frequency filter

17a, 17b, 27a, 27b, 27c, 37a, 37b, 37c, 47‧‧‧ DC blockers

22a‧‧‧First grounding pin

22b‧‧‧Second grounding pin

22c‧‧‧Second non-metallic medium

33a‧‧‧First feed pin

33b‧‧‧Second feed pin

33c‧‧‧ third non-metallic medium

44a‧‧‧First Signal Connector

44b‧‧‧Second signal connector

44c‧‧‧fourth non-metallic medium

S1, S2‧‧‧ segments

1A is a schematic view of a first embodiment of an antenna structure of the present invention.

FIG. 1B is another schematic diagram of a first embodiment of an antenna structure of the present invention.

2 is a schematic diagram of power-frequency measurements of the embodiment of FIG. 1A.

3 is a schematic view of a second embodiment of an antenna structure of the present invention.

4 is a schematic view of a third embodiment of the antenna structure of the present invention.

Fig. 5 is a schematic view showing a fourth embodiment of the antenna structure of the present invention.

An antenna structure according to an embodiment of the present invention will be described below with reference to the related drawings, wherein the same steps will be denoted by the same reference numerals.

Please refer to FIG. 1A and FIG. 1B, which are schematic diagrams of a first embodiment of an antenna structure of the present invention.

This embodiment is an antenna structure 1 including a radiating body 11 , a grounding pin 12 , a feeding pin 13 , a signal connecting member 14 , and a power supply unit 15 .

The antenna structure 1 of this embodiment is exemplified by a Planar Inverted F Antenna (PIFA), but is not limited by this structure. Moreover, the antenna structure 1 of the present embodiment can be applied to electronic devices such as Bluetooth devices, mobile phones, and other portable wireless electronic devices. In practical applications, the antenna structure 1 can be directly soldered to the circuit substrate of the electronic device.

The radiation body 11 has a first metal radiation member 11a, a second metal radiation member 11b, and a first non-metal medium 11c, and the first metal radiation member 11a is spaced apart from the second metal radiation member 11b, and the first non-metal medium 11c is disposed. Between the first metal radiating member 11a and the second metal radiating member 11b.

The first non-metal medium 11c of this embodiment is air, so it is indicated by a dashed line, so that no physical member is included between the first metal radiating member 11a and the second metal radiating member 11b. In other embodiments, the first non-metal medium 11c may be replaced with vacuum, helium or other gases as needed. The first non-metallic medium may also be a liquid such as water, sea water, alcohol, or may be a solid such as a non-metallic material such as a semiconductor or ceramic.

The first metal radiating member 11a and the second metal radiating member 11b of the present embodiment each have a tip end, and the tip end of the first metal radiating member 11a is disposed toward the tip end of the second metal radiating member 11b, and the purpose of providing the tip is to induce tip discharge. The phenomenon. The first metal radiating member 11a and the second metal radiating member 11b are respectively connected to the power supply unit 15.

The power supply unit 15 of this embodiment may be a battery, and may be connected to an externally supplied power source through a wire, and is not limited by a battery.

When in the use state, the at least one power supply unit can generate a voltage difference between the first metal radiating member 11a and the second metal radiating member 11b. When the voltage difference exceeds a predetermined value, the first metal radiating member 11a and the first The two metal radiating member 11b discharges and conducts through the first non-metal medium 11c.

In addition, in the present embodiment, compared with the conventional antenna structure, the radiation body uses less metal conductors (substituting part of the metal conductors by air), which also relieves the problem of the price increase of metal materials and the increase of cost due to depletion of metal materials. .

Further, in this embodiment, the distance between the first metal radiating member 11a and the second metal radiating member 11b can be adjusted, thereby adjusting the radiation waveform, the radiation direction, and the resonance of the antenna structure 1 according to different requirements (FIG. 1B). The effect of frequency.

For example, the antenna structure 1 can be further matched with a brake (not shown), and the distance between the first metal radiating member 11a and the second metal radiating member 11b can be adjusted through the brake (when the length of the equivalent radiating member will change), The effects of the radiation waveform, the radiation direction, and the resonant frequency can be dynamically adjusted.

Referring to FIG. 1A, one end of the grounding pin 12 of the antenna structure 1 and one end of the feeding pin 13 are electrically connected to the second metal radiating member 11b, respectively. The feed pin 13 is for receiving an RF signal, and both the ground pin 12 and the feed pin 13 are substantially parallel. The signal connector 14 is connected to the other end of the feed pin 13 and transmits the received signal to the radiation body 11 through the feed pin 13. The signal connector 14 is electrically connected to the other end of the ground pin 12 .

In order to avoid affecting the operating frequency of the antenna structure 1 when the voltage is applied by the voltage supply unit 15, the embodiment further includes at least two high-frequency filters, and the two high-frequency filters 16a and 16b are taken as an example, but not For the limit. The high frequency filter 16a is disposed between the first metal radiating member 11a and the power supply unit 15, and the high frequency filter 16b is disposed between the second metal radiating member 11b and the power supply unit 15.

In addition, in order to prevent the voltage provided by the voltage supply unit 15 from being accidentally fed into the signal connector 14, the embodiment may further include at least two DC blockers. The figure is exemplified by two DC blockers 17a and 17b. The blocker 17a is disposed between the ground pin 12 and the signal connector 14. The DC blocker 17b is disposed between the feed pin 13 and the signal connector 14.

However, the number and position of the DC blocker and the high-frequency filter setting will be adjusted according to the actual antenna structure, and thus the drawing of the present embodiment is not limited.

Next, please refer to FIG. 2. FIG. 2 is a schematic diagram of power-frequency measurement of the embodiment of FIG. 1A. Line segment S1 illustrates the measurement results of a conventional antenna structure. The line segment S2 is the result of actual measurement in this embodiment. It should be noted that, in the actual experiment of the embodiment, in order to simulate the state of the high voltage, a battery is used with a Tesla coil, so the line segment S2 has two Tesla coils (dummy frame) and no opening. Status. As can be seen from the graph, in the case where Tesla is turned on, the first metal radiating member 11a and the second metal radiating member 11b will be turned on and form a frequency similar to that of the conventional radiating body. Therefore, it can be proved that under the structure of the antenna structure of the embodiment, it is possible to achieve a similar radiation frequency by replacing the metal conductor with a non-metal medium.

In addition, when it is actually applied to the product, a power supply unit will continuously supply a high voltage (that is, it will remain in the state where the Tesla coil is turned on) to provide a structure similar to that of the conventional antenna. Radiation frequency.

Next, please refer to FIG. 3, which is a schematic diagram of a second embodiment of the antenna structure of the present invention.

This embodiment is an antenna structure 2 including a radiating body 21, a grounding pin 22, a feeding pin 23, a signal connecting member 24, and a power supply unit. The radiation body 21 of the present embodiment includes a first metal radiation member 21a and a second metal radiation member 21b.

The manner of matching the first metal radiating member 21a and the second metal radiating member 21b is similar to that of the foregoing embodiment, and therefore will not be described again.

The difference from the foregoing embodiment is that the present embodiment has two power supply units 25a, 25b, and the power supply unit 25a is electrically connected to the first metal radiating member 21a and the second metal radiating member 21b, respectively. The grounding pin 22 of the present embodiment includes a first grounding pin portion 22a and a second grounding pin portion 22b. The first grounding pin portion 22a is spaced apart from the second grounding pin portion 22b (the first grounding pin portion 22a) The conductive medium between the second ground pin portion 22b and the second ground pin portion 22b is air. The first ground pin portion 22a is connected to the radiation body 21, and the second ground pin portion 22b is connected to the signal connector 24. Similarly, the first ground pin portion 22a and the second ground pin portion 22b may each have a tip end with a tip end facing the setting.

The power supply unit 25b of the present embodiment is respectively connected to the radiation body 21 and the second ground pin portion 22b so as to be between the first ground pin portion 22a and the second ground pin portion 22b connected to the radiation body 21. A voltage difference is generated. When the voltage difference exceeds a predetermined value, the first ground pin portion 22a and the second ground pin portion 22b are discharged and turned on.

In addition, the antenna structure of the present embodiment may include a first non-metal medium 21c and a second non-metal medium 22c. The first non-metal medium 21c is disposed between the first metal radiating member 21a and the second metal radiating member 21b. The second non-metal medium 22c is disposed between the first grounding pin portion 22a and the second grounding pin portion 22b as the conductive medium of the embodiment, and the first non-metal medium 21c and the second non-second in the embodiment. The metal medium 22c is exemplified by air.

The high frequency filter 26a of the present embodiment is disposed between the radiation body 21 and the power supply unit 25b, and the high frequency filter 26b is disposed between the second ground pin portion 22b and the power supply unit 25b. Further, the present embodiment may further include a high frequency filter 26c provided to the first metal radiator 21a and the power supply unit 25a, and a high frequency filter 26d provided to the second metal radiator 21b and the power supply unit 25a.

Moreover, in order to prevent the voltage supply unit 25a, 25b from accidentally feeding the signal connector 24, the DC blocker 27a of the present embodiment is disposed on the second ground pin portion 22b. The DC blocker 27b of the present embodiment is disposed between the feed pin 23 and the signal connector 24. The DC blocker 27c is disposed between the second metal radiating member 21b and the first ground pin portion 22a.

The remaining features are similar to the previous embodiments and will not be described again.

Next, please refer to FIG. 4, which is a schematic diagram of a third embodiment of the antenna structure of the present invention.

This embodiment is an antenna structure 3 including a radiating body 31, a grounding pin 32, a feeding pin 33, a signal connecting member 34, and a power supply unit. The radiation body 31 of the present embodiment includes a first metal radiation member 31a and a second metal radiation member 31b.

The manner of matching the first metal radiating member 31a and the second metal radiating member 31b is similar to that of the foregoing embodiment, and therefore will not be described again.

The difference from the first embodiment is that the present embodiment has two power supply units 35a, 35b, and the power supply unit 35a is electrically connected to the first metal radiating member 31a and the second metal radiating member 31b, respectively. Moreover, the feed pin 33 of the embodiment includes a first feed pin portion 33a and a second feed pin portion 33b, and the first feed pin portion 33a and the second feed pin portion 33b are spaced apart from each other ( The conductive medium between the first feed pin portion 33a and the second feed pin portion 33b is air. The first feed pin portion 33a is connected to the radiation body 31, and the second feed pin portion 33b is connected to the signal connector 34. Similarly, each of the first feed pin portion 33a and the second feed pin portion 33b may have a tip end with its tip facing the setting.

In addition, the antenna structure of the present embodiment may include a first non-metal medium 31c and a third non-metal medium 33c. The first non-metal medium 31c is disposed between the first metal radiating member 31a and the second metal radiating member 31b. The third non-metal medium 33c is disposed between the first feed pin portion 33a and the second feed pin portion 33b as the conductive medium of the embodiment, and the first non-metal medium 31c and the first embodiment of the present embodiment The three non-metal medium 33c is exemplified by air.

In addition, the feed pins in the conventional antenna structure are mostly connected by using a spring piece, a screw, a thimble, or a soldering method. If the design of the embodiment is used, the components can be eliminated, in addition to reducing the cost, The disadvantages of these components being easily resonated with the radiation member can be avoided.

The power supply unit 35b of the present embodiment is respectively connected to the radiation body 31 and the second feed pin portion 33b, so that the first feed pin portion 33a connected to the radiation body 31, A voltage difference is generated between the second feed pin portions 33b. When the voltage difference exceeds a predetermined value, the first feed pin portion 33a and the second feed pin portion 33b are discharged and turned on.

The high frequency filter 36a of the present embodiment is disposed between the radiation body 31 and the power supply unit 35b, and the high frequency filter 36b is disposed between the second feed pin portion 33b and the power supply unit 35b. Further, the present embodiment may further include a high frequency filter 36c provided to the first metal radiator 31a and the power supply unit 35a, and a high frequency filter 36d provided to the second metal radiator 31b and the power supply unit 35a.

In addition, the DC blocking device 37b of the present embodiment is disposed between the second feeding pin portion 33b and the signal connecting member 34, in order to prevent the voltage supplied from the voltage supply unit 35a, 35b from being accidentally fed into the signal connecting member 34. The DC blocker 37a of this embodiment is disposed between the ground pin 32 and the signal connector 34. The DC blocker 37c is disposed between the second metal radiating member 31b and the first feed pin portion 33a.

Moreover, an embodiment of the antenna structure can be combined with the embodiment and the second embodiment, and the advantages of the embodiment and the foregoing embodiment can be combined.

Fig. 5 is a schematic view showing a fourth embodiment of the antenna structure of the present invention.

This embodiment is an antenna structure 4 including a radiating body 41, a grounding pin 42, a feeding pin 43, a signal connecting member 44, and two power supply units 45a, 45b.

The difference from the first embodiment is that the present embodiment has two power supply units 45a, 45b, and the power supply unit 45b is connected to the first metal radiating member 41a of the radiation body 41 and the second metal radiating member 41b, and the power supply unit 45a is coupled to signal connector 44. The signal connector 44 of the present embodiment further includes a first signal connector portion 44a and a second signal connector portion 44b. The conductive medium between the first signal connector portion 44a and the second signal connector portion 44b is air. Similarly, the first signal connector portion 44a and the second signal connector portion 44b may each have a tip end, and the tip ends are disposed to face each other.

In addition, the antenna structure 4 of the present embodiment may further include a fourth non-metal medium 44c disposed between the first signal connector portion 44a and the second signal connector portion 44b, and a first non-metal medium 41c disposed on the first A metal radiating member 41a and a second metal radiating member 41b, the first non-metal medium 41c and the fourth non-metal medium 44c of the present embodiment are exemplified by air.

The power supply unit 45a of the present embodiment and the first signal connector portion 44a, respectively And the second signal connector portion 44b is connected such that a voltage difference is generated between the first signal connector portion 44a and the second signal connector portion 44b, and when the voltage difference exceeds a predetermined value, the first signal connector portion 44a and the second signal connector portion 44b will be discharged and turned on.

The high frequency filters 46a, 46b of the present embodiment are respectively disposed between the first signal connector portion 44a and the second signal connector portion 44b and the power supply unit 45a. The high frequency filters 46c, 46d of the embodiment are disposed between the first metal radiating member 41a and the power supply unit 45b and between the second metal radiating member 41b and the power supply unit 45b, respectively. Moreover, in order to prevent the voltage supplied from the voltage supply unit 45b from being accidentally fed into the signal connector 44, the two DC blockers 47 of the present embodiment are respectively disposed between the ground pin 42 and the first signal connector portion 44a and The feed pin 43 is interposed between the first signal connector portion 44a.

In summary, the present invention can be configured by dividing a radiation body into a first metal radiation member and a second metal radiation member, and arranging a non-metal medium between the first metal radiation member and the second metal radiation member. The first metal radiating member and the second metal radiating member are electrically connected to the power supply unit. When the first metal radiating member and the second metal radiating member are electrically connected to each other through the non-metal medium, similar effects to the conventional antenna structure can be obtained. In addition, the radiation body of the embodiment can also adjust the distance between the first metal radiation element and the second metal radiation element, the conductive medium or the voltage difference according to different products and requirements, thereby providing a radiation waveform of the adjustable antenna. The purpose of the antenna structure in the direction of radiation.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧Antenna structure

11‧‧‧radiation ontology

11a‧‧‧First metal radiator

11b‧‧‧Second metal radiator

11c‧‧‧First non-metallic medium

12‧‧‧ Grounding pin

13‧‧‧Feed the pin

14‧‧‧Signal connectors

15‧‧‧Power supply unit

16a, 16b‧‧‧ high frequency filter

17a, 17b‧‧‧ DC blocker

Claims (12)

An antenna structure includes: a radiation body having a first metal radiation member, a second metal radiation member, and a first non-metal medium, wherein the first non-metal medium is disposed on the first metal radiation member and the first Between the two metal radiating members; a grounding pin, one end is electrically connected to the second metal radiating member; a feeding pin, one end is electrically connected to the second metal radiating member; and a signal connecting member is electrically connected to the feeding The other end of the input pin and the other end of the ground pin, the signal connector transmits a received signal to the radiation body through the feed pin; and at least one power supply unit electrically connected to the first metal a radiating member and the second metal radiating member. The antenna structure of claim 1, wherein the at least one power supply unit is capable of causing a voltage difference between the first metal radiating member and the second metal radiating member to pass through the first non-metal The medium turns on the first metal radiating member and the second metal radiating member. The antenna structure of claim 1, further comprising: at least two high frequency filters disposed between the first metal radiating member and the power supply unit, and the second metal radiating member and the power supply unit between. The antenna structure of claim 1, further comprising: at least two DC blocking devices disposed between the grounding pin and the signal connecting member and between the feeding pin and the signal connecting member. The antenna structure of claim 1, wherein the grounding pin comprises: a first grounding pin portion; and a second grounding pin portion, wherein the first grounding pin portion and the second grounding portion The pin portions are spaced apart, and the at least one power supply unit is configured to have a voltage difference between the first ground pin portion and the second ground pin portion. The antenna structure of claim 5, further comprising: a second non-metal medium disposed between the first ground pin portion and the second ground pin portion. The antenna structure of claim 1, wherein the feed pin further comprises: a first feed pin portion; and a second feed pin portion, wherein the first feed pin portion The second feeding pin portion is spaced apart from the second feeding pin portion, and the at least one power supply unit can have a voltage difference between the first feeding pin portion and the second feeding pin portion. The antenna structure of claim 7, further comprising: a third non-metal medium disposed between the first feed pin portion and the second feed pin portion. The antenna structure of claim 1, wherein the signal connector further comprises: a first signal connector portion; and a second signal connector portion, wherein the first signal connector portion and the second The signal connector portions are spaced apart, and the at least one power supply unit is configured to have a voltage difference between the first signal connector portion and the second signal connector portion. The antenna structure of claim 9, further comprising: a fourth non-metal medium disposed between the first signal connector portion and the second signal connector portion. The antenna structure according to any one of claims 1 to 6, wherein the first non-metal medium, the second non-metal medium, the third non-metal medium or the antenna structure The fourth non-metallic medium is the same medium. The antenna structure according to any one of claims 1 to 6, wherein the first non-metal medium, the second non-metal medium, the third non-metal medium or the antenna structure The fourth non-metallic medium is a different medium.