CN102760940B - Coupled antenna and electronic device with coupled antenna - Google Patents

Abstract

The invention provides a coupling type antenna and an electronic device with the same. The coupled antenna comprises a substrate, a radiation component, a resonance component, a grounding component, a feed-in point and a grounding point; the radiation assembly, the resonance assembly and the grounding assembly are arranged on the substrate, and the radiation assembly is provided with a first radiation body; the resonant assembly is a substantially C-shaped structure, wherein the first radiator extends into the C-shaped structure of the resonant assembly so as to enable the first radiator and the resonant assembly to generate resonance; the grounding component is used for grounding the coupling antenna; the feed-in point is arranged on the resonance component and is used for feeding in an electrical signal; the grounding point is located on the grounding component and is electrically connected with the feed-in point through a feed-in line. The invention can meet the requirement of a specific transmission frequency band.

Description

Coupled antenna and electronic device with coupled antenna

technical field

The invention relates to a coupling type antenna (coupling type antenna) and an electronic device with the coupling type antenna, in particular to a coupling type antenna with a resonant component and the electronic device thereof.

Background technique

With the advancement of science and technology, the transmission of electronic products on the market using wireless communication systems has become more and more popular. For special multimedia devices, a transmission antenna with a specific transmission frequency band is more needed. As a result, traditional antennas may not meet the requirements.

One form of antenna has been disclosed in the prior art. Please refer to FIG. 1A below, which is a schematic diagram of an antenna in the prior art. A prior art antenna 90 is disclosed in US Patent Publication No. 6,812,892 B2. The prior art antenna 90 has a radiation element 91 , a connection element 92 , a ground element 93 and a feed point F. As shown in FIG. The connection element 92 has a first end 921 and a second end 922 ; and the first end 921 of the connection element 92 is connected to the radiation element 91 , and the second end 922 is connected to the ground element 93 . And the antenna 90 directly feeds the signal through the feeding point F to transmit an electrical signal.

Next, please refer to FIG. 1B . FIG. 1B shows the VSWR (Voltage Standing Wave Ratio) of the antenna 90 in FIG. 1A at different frequencies. It can be known from FIG. 1B that the antenna 90 can only transmit in the range of frequencies around 2.5 GHz and 5.5 GHz. It can be seen that the frequency band that the antenna 90 in the prior art can transmit is very limited, which does not meet the frequency band requirements of special multimedia devices today.

Therefore, it is necessary to invent an antenna to solve the deficiencies of the prior art.

Contents of the invention

The main purpose of the present invention is to provide a coupled antenna and its electronic device, which have a resonance effect.

In order to achieve the above object, the coupling antenna of the present invention includes a substrate; a radiating element, the radiating element is arranged on the substrate, the radiating element has a first radiator; a resonant element, the resonant element is arranged on the substrate , and is a substantially C-shaped structure, wherein the first radiator extends into the C-shaped structure of the resonant component, so that the first radiator and the resonant component resonate; a ground component, The ground component is arranged on the substrate for grounding of the coupled antenna; a feed point, the feed point is set on the resonant component for feeding an electrical signal; and a ground point, The grounding point is located on the grounding component, and is electrically connected with the feeding point through a feeding line.

The electronic device with a coupled antenna of the present invention has a wireless transmission function, and the electronic device with a coupled antenna includes a wireless signal module and a coupled antenna; the coupled antenna includes a substrate, a radiation component, and a resonance component, a grounding component, a feed-in point and a grounding point; the radiating component is arranged on the substrate, and the radiating component has a first radiator; the resonant component is arranged on the substrate, and is a substantially C Shaped structure, wherein the first radiator extends into the C-shaped structure of the resonant component, so that the first radiator and the resonant component resonate; the ground component is arranged on the substrate to serve as the The coupled antenna is used for grounding; the feed point is set on the resonant component to feed an electrical signal; the ground point is located on the ground component, and is electrically connected to the feed point through a feed line connect.

The invention can meet the requirement of specific transmission frequency band.

Description of drawings

FIG. 1A is a schematic diagram of an antenna in the prior art.

Figure 1B shows its VSWR at different frequencies based on Figure 1A.

FIG. 2 is a schematic diagram of the first embodiment of the coupled antenna of the present invention.

Figure 3 shows its VSWR at different frequencies based on Figure 2.

FIG. 4A shows its radiation field pattern in the horizontal direction according to FIG. 2 .

FIG. 4B shows its radiation field pattern in the vertical direction according to FIG. 2 .

FIG. 5 is a schematic diagram of a second embodiment of the coupled antenna of the present invention.

FIG. 6 is a system block diagram of the electronic device of the present invention.

Description of main component symbols:

Prior art: Radiating assemblies 30a, 30b

Antenna 90 First Radiator 31a, 31b

Radiation component 91 Second radiator 32

Connecting component 92 Grounding component 40

First end 921 Depression 41

The second end 922 resonant components 50a, 50b

Grounding assembly 93 Electronic device 60

Feed point F Wireless signal module 61

Feed point F

The present invention: Ground point G

Coupling antenna 10a, 10b Feed line L

Substrate 20

Detailed ways

In order to make the above and other objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention are listed below and described in detail in conjunction with the accompanying drawings.

Please refer to FIG. 2 first. FIG. 2 is a schematic diagram of a first embodiment of the coupled antenna of the present invention.

In the first embodiment of the present invention, the coupled antenna 10a is a planar structure. The coupled antenna 10 a includes a substrate 20 , a radiation component 30 a , a ground component 40 , a resonance component 50 a , a feed point F and a ground point G. As shown in FIG. The substrate 20 is a printed circuit board, a plastic board or a glass fiber board, but the invention is not limited thereto. The radiation component 30 a , the ground component 40 and the resonant component 50 a can be printed on the same plane of the substrate 20 , or made of iron and then attached to the same plane of the substrate 20 .

The radiating element 30a can pass electric current to excite radiant energy. The radiation component 30a is a structure similar to a compensation antenna, and has a first radiator 31a for interacting with the resonance component 50a. The grounding component 40 is used for grounding the coupled antenna 10a, and the range of the grounding component 40 can be the entire substrate 20 to increase the grounding range. The ground component 40 further includes a recess 41 near the feeding point F. As shown in FIG. The coupled antenna 10a can use the recess 41 to change the internal current loop, thereby enhancing the electric field effect.

The resonant component 50a and the ground component 40 are connected to each other. The resonant component 50a has a C-shaped structure, and the first radiator 31a of the radiating component 30a extends into the C-shaped structure. The resonant component 50a and the first radiator 31a resonate with each other to form an effective radiator. In this way, the coupled antenna 10a can excite radiation energy. And the working frequency band of the coupled antenna 10a can be adjusted by the length of the first radiator 31a. When the length of the first radiator 31a is longer, that is, the more it extends into the C-shaped structure, the coupled antenna 10a will have a stronger low operating frequency band.

A feed point F and a ground point G are also included on the coupled antenna 10a. In the first embodiment of the present invention, the feeding point F is located on the resonance component 50a. The feed point F is electrically connected to a feed line L for feeding electrical signals. The feed-in line L can be a cable such as an RF cable (RF Cable), but the present invention is not limited thereto. The grounding point G is located on the grounding component 40 and is electrically connected to the feeding point F through the feeding line L for signal grounding. The grounding point G may be located within the enlarged grounding range of the grounding component 40 , but the present invention is not limited thereto. When the electrical signal is fed through the feeding point F, the structure of the resonant component 50a and the first radiator 31a produces resonant coupling, so that the coupled antenna 10a can excite radiated energy.

Then please refer to Figure 3, Figure 3 shows its VSWR at different frequencies based on Figure 2.

As can be seen from FIG. 3 , the coupled antenna 10 a can transmit a frequency band around 1.5754 GHz due to the above structure and resonance effect, which can meet the transmission frequency band required by the satellite positioning system.

Then please refer to FIG. 4A and FIG. 4B at the same time, wherein FIG. 4A shows the radiation field pattern in the horizontal direction according to FIG. 2 , and FIG. 4B shows the radiation field pattern in the vertical direction according to FIG. 2 .

It can be seen from FIG. 4A that the coupled antenna 10a is an omnidirectional antenna in the horizontal direction. It can be known from FIG. 4B that the radiation direction of the coupled antenna 10 a is vertically biased to the rear of the coupled antenna 10 a, so that the radiated energy is more concentrated.

Next, please refer to FIG. 5 , which is a schematic diagram of a second embodiment of the coupled antenna of the present invention.

In the second embodiment of the present invention, a coupled antenna 10b has a substrate 20, a radiation component 30b, a ground component 40, and a resonance component 50b. The radiation element 30 b , the ground element 40 and the resonance element 50 b are also printed or disposed on the same plane of the substrate 20 . The radiation element 30b has a first radiator 31b and a second radiator 32, and the first radiator 31b and the second radiator 32 are parallel to each other. The resonant component 50 b also has a C-shaped structure, but is not connected to the ground component 40 . The feeding point F is also located on the resonant component 50b for feeding an electrical signal through a feeding line (not shown). The first radiator 31b extends into the resonance component 50b, and the structures of the first radiator 31b, the second radiator 32 and the resonance component 50b are parallel to each other. The coupled antenna 10b utilizes the structural interaction resonance coupling of the first radiator 31b, the second radiator 32 and the resonant component 50b to achieve the effect of exciting radiant energy.

Since the coupled antenna 10b of the second embodiment exhibits characteristics similar to those of the coupled antenna 10a of the first embodiment, details are not repeated here.

Finally, please refer to FIG. 6 , which is a system block diagram of the electronic device of the present invention.

In an embodiment of the present invention, the electronic device 60 may be a mobile device such as a satellite positioning system, but the present invention is not limited thereto. As shown in FIG. 6 , the electronic device 60 of the present invention includes a coupled antenna 10 a and a wireless signal module 61 . The electronic device 60 can use a feed-in line (not shown) to feed into the coupling antenna 10a and be electrically connected to the wireless signal module 61, so that the wireless signal module 61 can process the signal of the coupling antenna 10a, such as transmitting or receiving Signal. In this way, the electronic device 60 can receive or transmit wireless signals to other devices (not shown) through the coupled antenna 10a to achieve the purpose of wireless communication.

It should be noted here that the electronic device 60 is not limited to having the coupled antenna 10a. The present invention can also replace the coupled antenna 10a with the coupled antenna 10b of the present invention according to requirements, so as to receive or transmit wireless signals of different frequency bands.

To sum up, the present invention, regardless of its purpose, means, and efficacy, shows its characteristics that are completely different from the known technology. I urge the examiner to be aware of it and grant a patent as soon as possible to benefit the society. I really appreciate it. However, it should be noted that the above-mentioned embodiments are examples only for the convenience of description, and the scope of rights claimed in the present invention should naturally be determined by the scope of the claims, rather than limited to the above-mentioned embodiments.

Claims (12)

1. an integrated antennas, this integrated antennas comprises:

One substrate;

One radiation assembly, this radiation assembly is arranged on this substrate, and this radiation assembly has one first radiant body;

One resonance assembly, this resonance assembly is arranged on this substrate, and is a structure c-shaped in fact, and wherein this first radiant body extends in the structure of this C shape of this resonance assembly, resonates to make this first radiant body and this resonance assembly produce;

One grounding assembly, this grounding assembly is arranged on this substrate, in order to the use as this integrated antennas ground connection;

One load point, this load point is arranged on this resonance assembly, in order to feed-in one electrical signals; And

One earth point, this earth point is positioned on this grounding assembly, and is electrically connected by a feed-in line and this load point;

Wherein, the working frequency range of this integrated antennas adjusts by the length of this first radiant body;

Wherein, this grounding assembly is also comprising a recess close to this load point place.

2. integrated antennas as claimed in claim 1, wherein the lateral part of this first radiant body and this resonance assembly is parallel to each other.

3. integrated antennas as claimed in claim 1, wherein this radiation assembly also comprises one second radiant body.

4. integrated antennas as claimed in claim 3, wherein this second radiant body is parallel to each other with this first radiant body in fact.

5. integrated antennas as claimed in claim 1, wherein this resonance assembly and this grounding assembly are connected to each other.

6. integrated antennas as claimed in claim 1, wherein this radiation assembly, this resonance assembly and this grounding assembly are arranged on the same plane of this substrate.

7. have an electronic installation for integrated antennas, have the function of a wireless transmission, this electronic installation with integrated antennas comprises:

One wireless signal module; And

One integrated antennas, this integrated antennas comprises:

One substrate;

One radiation assembly, this radiation assembly is arranged on this substrate, and this radiation assembly has one first radiant body;

One resonance assembly, this resonance assembly is arranged on this substrate, and is a structure c-shaped in fact, and wherein this first radiant body extends in the structure of this C shape of this resonance assembly, resonates to make this first radiant body and this resonance assembly produce;

One grounding assembly, this grounding assembly is arranged on this substrate, in order to the use as this integrated antennas ground connection;

One load point, this load point is arranged on this resonance assembly, in order to feed-in one electrical signals; And

One earth point, this earth point is positioned on this grounding assembly, and is electrically connected by a feed-in line and this load point;

Wherein, the working frequency range of this integrated antennas adjusts by the length of this first radiant body;

Wherein, this grounding assembly is also comprising a recess close to this load point place.

8. have the electronic installation of integrated antennas as claimed in claim 7, wherein the lateral part of this first radiant body and this resonance assembly is parallel to each other.

9. have the electronic installation of integrated antennas as claimed in claim 7, wherein this radiation assembly also comprises one second radiant body.

10. have the electronic installation of integrated antennas as claimed in claim 9, wherein this second radiant body is parallel to each other with this first radiant body in fact.

11. electronic installations as claimed in claim 7 with integrated antennas, wherein this resonance assembly and this grounding assembly are connected to each other.

12. electronic installations as claimed in claim 7 with integrated antennas, wherein this radiation assembly, this resonance assembly and this grounding assembly are arranged on the same plane of this substrate.