Antenna structure and wireless communication device having the same

Abstract

An antenna structure for establishing a wireless communication connection with an external device, the antenna structure comprising an antenna body and an integrated module; the antenna body is electrically connected to the integrated module, the antenna body is used to receive signals from an external device and transmit the signals to the integrated module; the integrated module is used to receive signals transmitted by the antenna body and to determine the signal type of the signal; when the signal is a first signal and the frequency value of the signal is a preset frequency value, the antenna structure establishes a communication connection with the external device, and when the signal is a second signal and the frequency value of the signal is within a preset frequency range value, the antenna structure establishes a communication connection with the external device. The antenna structure of the present application can be connected to an external device that conforms to the first signal or the second signal, and has strong compatibility and a high transmission rate. The present application also discloses a wireless communication device having the antenna structure.

Description

Technical Field

[0001] The invention relates to an antenna structure and a wireless communication device having the antenna structure. Background Art

[0002] In recent years, with the rapid development of wireless communication technology, the application of Bluetooth communication technology has become more and more extensive, which has led to a rapid growth in the use of wireless products. However, the data transmission rate of Bluetooth communication technology is not high. Since 2002, the US FCC developers have gradually used ultra-wideband (UWB) technology, which has the advantages of high-speed transmission, low power consumption, and low cost. As a result, many UWB-related products and applications have begun to appear. However, UWB is not popular at present, and there are even problems of incompatibility with many devices. Summary of the invention

[0003] In view of this, it is necessary to provide an antenna structure with good compatibility and high transmission rate and a wireless communication device having the antenna structure.

[0004] An antenna structure is used to establish a wireless communication connection with an external device, the antenna structure comprising an antenna body and an integrated module; the antenna body is electrically connected to the integrated module, the antenna body is used to receive signals from the external device and transmit the signals to the integrated module; the integrated module is used to receive signals transmitted by the antenna body and to determine the signal type of the signal; when the signal is a first signal and the frequency value of the signal is a preset frequency value, the antenna structure establishes a communication connection with the external device, and when the signal is a second signal and the frequency value of the signal is within a preset frequency range value, the antenna structure establishes a communication connection with the external device.

[0005] As a preferred solution, the antenna structure also includes a microstrip line, one end of the microstrip line is electrically connected to the antenna body, and the other end of the microstrip line is electrically connected to the integrated module, and the antenna body transmits the signal to the integrated module through the microstrip line.

[0006] As a preferred solution, the antenna structure further includes a carrier, and the carrier is used to carry the antenna body, the microstrip line and the integrated module.

[0007] As a preferred solution, the antenna structure further comprises a grounding layer, which is arranged on a surface of the carrier away from the integrated module, and is used to provide grounding for the integrated module.

[0008] As a preferred solution, the first signal is a radio frequency signal.

[0009] As a preferred solution, the second signal is a pulse signal.

[0010] As a preferred solution, the preset frequency value is 2.4 GHz, and the preset frequency range value is 3.1 GHz to 10.6 GHz.

[0011] As a preferred solution, the antenna body is a circular single-polarized antenna.

[0012] A wireless communication device comprises a shell and an antenna structure, wherein the antenna structure is accommodated in the shell.

[0013] As a preferred solution, the wireless communication device further includes a power module, and the power module is used to provide electrical energy to the antenna structure.

[0014] The antenna structure of the present application can be communicatively connected with an external device that conforms to the first signal or the second signal, has strong compatibility, and has a high transmission rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an antenna structure according to a preferred embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Schematic top view of the antenna structure shown.

[0017] Figure 3 yes Figure 1 Side schematic diagram of the antenna structure shown.

[0018] Figure 4 It is a connection relationship diagram of the wireless communication device in the preferred embodiment of the present invention.

[0019] Main component symbols

[0020] Antenna structure 100

[0021] Antenna body 10

[0022] Integrated module 20

[0023] Microstrip line 30

[0024] Carrier 40

[0025] Ground layer 50

[0026] Wireless communication device 200

[0027] Housing 201

[0028] Power module 210

[0029] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that when an element is referred to as being "electrically connected" to another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "electrically connected" to another element, it may be a contact connection, for example, a wire connection, or a contactless connection, for example, a contactless coupling.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1 , an embodiment of the present invention provides an antenna structure 100. The antenna structure 100 is applied to a wireless communication device 200 (refer to Figure 4 ). The antenna structure 100 can communicate with an electronic device provided with a Bluetooth antenna. The antenna structure 100 can also communicate with an electronic device provided with an ultra-wideband antenna. The antenna structure 100 can be applied to a wireless communication device 200 such as a mobile phone and a personal digital assistant to transmit and receive radio waves to transmit and exchange wireless signals.

[0035] It is understood that in the technical field, Bluetooth is a wireless communication technology that can be used for short-distance data transmission between fixed or mobile devices to form a personal area network. It uses ultra-high frequency (UHF) radio waves and a frequency band of 2.4GHz to 2.485GHz for wireless transmission. Bluetooth antennas usually send signals carrying data in the form of radio frequencies. Bluetooth antennas can establish multiple connections such as one-to-one device communication, one-to-many, and many-to-many. It is understood that Bluetooth technology has extremely high compatibility and extensiveness.

[0036] Ultra-wideband (UWB) is a carrier-free communication technology. UWB does not use a carrier, but uses an energy pulse sequence and expands the pulse into a frequency range through orthogonal frequency division modulation or direct sequencing. Wireless transmission is carried out in the frequency band of 2.4GHz to 2.485GHz. The ultra-wideband system has a relatively simple structure, high-speed data transmission, and accurate positioning. It can be understood that UWB technology has high-speed transmission.

[0037] In this embodiment, the antenna structure 100 includes an antenna body 10, an integrated module 20, and a microstrip line 30. The antenna body 10 is electrically connected to the integrated module 20 via the microstrip line 30.

[0038] The antenna body 10 is used to receive signals from external devices and transmit the signals to the integrated module 20 .

[0039] The integrated module 20 is used to receive the signal transmitted by the antenna body 10 and determine the type of the signal. Specifically, in this embodiment, the integrated module 20 can receive the signal sent by the external device through the antenna body 10. The integrated module 20 is also used to determine whether the signal is a signal sent by a device equipped with a Bluetooth antenna or an ultra-wideband antenna. When the signal is a signal sent by a device with a Bluetooth antenna or an ultra-wideband antenna, the integrated module 20 transmits the signal to the wireless communication device 200 through the microstrip line 30, and then the wireless communication device 200 establishes a wireless communication connection with the external device.

[0040] It can be understood that at this time, the wireless communication device 200 having the antenna structure 100 can achieve wireless data communication with the external device through the antenna body 10.

[0041] Please also read Figures 2 to 3 In this embodiment, the integrated module 20 is used to receive the signal sent by the external device through the microstrip line 30 and determine the type of the signal. The type of the signal includes a first signal and a second signal. Specifically, the integrated module 20 is used to determine whether the signal is the first signal or the second signal. It can be understood that the first signal in the embodiment of the present application can be a radio frequency signal. It can be understood that the second signal in the embodiment of the present application can be a pulse signal.

[0042] The integrated module 20 stores a preset frequency value. When the integrated module 20 determines that the signal is the first signal, the integrated module 20 is further used to determine whether the frequency value of the first signal is the preset frequency value. When the frequency value of the signal is determined to be the preset frequency value, the integrated module 20 transmits the signal to the wireless communication device 200. The wireless communication device 200 receives the signal transmitted by the integrated module 20, and then establishes a communication connection with the external device through the antenna structure 100.

[0043] Specifically, in this embodiment, when the signal is a first signal and the frequency value of the signal is a preset frequency value, the signal is a signal sent by a device provided with a Bluetooth antenna, that is, the signal can be a Bluetooth signal. It can be understood that in this embodiment, the wireless communication device 200 can establish a wireless communication connection with an external device provided with a Bluetooth antenna through the antenna structure 100, and the antenna structure 100 also has the advantages of a Bluetooth antenna. The antenna structure 100 can realize one-to-one, one-to-many or many-to-many wireless communication, and the antenna structure 100 has good compatibility.

[0044] In this embodiment, when the integrated module 20 determines that the signal is the first signal, but the frequency value of the signal is greater than the preset frequency value or less than the preset frequency value, the integrated module 20 does not transmit the signal to the wireless communication device 200. The wireless communication device 200 does not establish a wireless communication connection with an external device.

[0045] In this embodiment, the preset frequency value may be 2.4 GHz. It is understood that when the integrated module 20 determines that the signal is a radio frequency signal and the frequency of the signal is 2.4 GHz, the first signal is a signal transmitted by a Bluetooth antenna. The antenna structure 100 establishes wireless communication with the external device. When the integrated module determines that the signal is a radio frequency signal and the frequency of the signal is greater than or less than 2.4 GHz, the first signal is not a signal transmitted by a Bluetooth antenna. The antenna structure 100 does not establish wireless communication with the external device.

[0046] The integrated module 20 also stores a preset frequency range value. When the integrated module 20 determines that the signal is the second signal, the integrated module 20 is further used to determine whether the frequency value of the signal is within the preset frequency range value. When it is determined that the frequency value of the signal is within the preset frequency range value, the integrated module 20 transmits the signal to the wireless communication device 200. The wireless communication device 200 receives the signal transmitted by the integrated module 20, and then establishes a communication connection with the external device through the antenna structure 100.

[0047] It can be understood that when the frequency value of the signal is within the preset frequency range value, the frequency of the signal is greater than the minimum value of the preset frequency range value and less than the maximum value of the preset frequency range value, or is equal to the minimum value of the preset frequency range value, or is equal to the maximum value of the preset frequency range value.

[0048] Specifically, in this embodiment, when the signal is a second signal and the frequency value of the signal is within a preset frequency range, the signal is a signal sent by a device provided with an ultra-wideband antenna. That is, the signal is an ultra-wideband signal. It can be understood that in this embodiment, the wireless communication device 200 can establish a wireless communication connection with an external device provided with an ultra-wideband antenna through the antenna structure 100, and thus the antenna structure 100 also has the advantages of an ultra-wideband antenna. The transmission rate of the antenna structure 100 is high.

[0049] In this embodiment, when the integrated module 20 determines that the signal is the second signal, but the frequency value of the signal is less than the minimum value of the preset frequency range value, or greater than the maximum value of the preset frequency range value, the integrated module 20 does not transmit the signal to the wireless communication device 200. The wireless communication device 200 does not establish a wireless communication connection with an external device.

[0050] In this embodiment, the preset frequency range value can be 3.1 GHz to 10.6 GHz. It can be understood that when the integrated module 20 determines that the frequency of the signal is within 3.1 GHz to 10.6 GHz, that is, the signal frequency band is greater than 3.13.1 GHz and less than 10.6 GHz, or equal to 3.1 GHz, or equal to 10.6 GHz, the second signal is a signal transmitted by the ultra-wideband antenna. The antenna structure 100 can establish a wireless communication connection with an external device.

[0051] When the frequency of the signal is not within the preset frequency range value, that is, greater than the maximum value of the preset frequency range value or less than the minimum value of the preset frequency range value, the antenna structure 100 does not establish wireless communication with the external device. In this embodiment, the preset frequency range value is 3.1GHz to 10.6GHz. It can be understood that for a pulse signal with a frequency equal to 3.1GHz, or greater than 3.1GHz and less than 10.6GHz, or equal to 10.6GHz, the antenna structure 100 can establish a wireless communication connection with an external device. When the frequency of the signal is less than 3.1GHz, or greater than 10.6GHz, the antenna structure 100 does not establish a wireless communication connection with an external device.

[0052] It can be understood that when the integrated module 20 determines that the signal is a radio frequency signal and the frequency of the signal is 2.4 GHz, the signal is a signal transmitted by a Bluetooth antenna. The antenna structure 100 establishes a wireless communication connection with an external device.

[0053] It can be understood that when the integrated module 20 determines that the signal is a pulse signal and the frequency of the signal is greater than or equal to 3.1 GHz and less than or equal to 10.6 GHz, the signal is a signal transmitted by an ultra-wideband antenna. The antenna structure 100 establishes a wireless communication connection with an external device.

[0054] It can be understood that when the signal satisfies at least one of the above two conditions, the antenna structure 100 establishes wireless communication with the external device.

[0055] It can be understood that when the integrated module 20 determines that the transmission form of the signal is neither a radio frequency signal nor a pulse signal, the integrated module 20 does not transmit the signal to the wireless communication device 200, and the antenna structure 100 establishes a wireless communication connection with the external device. The wireless communication device 200 will not communicate with the external device through the antenna structure 100.

[0056] In this embodiment, the antenna structure 100 can be connected to communicate with an external device having a Bluetooth antenna or an external device having an ultra-wideband antenna.

[0057] In this embodiment, the antenna body 10 is also used to transmit signals to external devices. Thus, through the antenna body 10, the antenna structure 100 can establish wireless communication with external devices. It can be understood that in other embodiments, the antenna body 10 can be a combination of a Bluetooth antenna (2.4GHz) and an ultra-wideband antenna (3.1~10.6GHz), or a single ultra-wideband antenna, but its frequency includes 2.4GHz and 3.1~10.6GHz. There are many types of UWB antennas, such as: Vivaldi antenna, log periodic antenna, spiral antenna, fractal antenna, circular monopole antenna, linearly tapered slot antenna (LTSA, linearly tapered slot antenna), etc., which can be combined with a Bluetooth antenna.

[0058] In this embodiment, the antenna body 10 is a circular single-polarized antenna. The antenna body 10 is substantially in a circular sheet structure.

[0059] In this embodiment, it can be understood that one end of the microstrip line 30 is electrically connected to the antenna body 10, and the other end of the microstrip line 30 is electrically connected to the antenna body 10. The antenna body 10 transmits the received signal to the integrated module 20 through the microstrip line 30.

[0060] In the present embodiment, the antenna structure 100 further includes a carrier 40. Specifically, the carrier in the present embodiment may be a circuit substrate for carrying the integrated module 20, the antenna body 10 and the microstrip line 30. The carrier 40 is roughly rectangular. The first surface of the carrier 40 is divided into two parts, namely a first part and a second part. The antenna body 10 is arranged on the first part of the first surface of the carrier 40. The integrated module 20 is arranged on the second part of the first surface of the carrier 40. It can be understood that the integrated module 20 and the antenna body 10 can be welded or plugged on the surface of the carrier 40. The microstrip line 30 is attached to the second part of the first surface of the carrier 40 and is electrically connected to the integrated module 20 and the antenna body 10.

[0061] It can be understood that in this embodiment, the first surface of the carrier 40 is divided into two parts only for the convenience of describing the position relationship later, but it is not intended to limit it. In addition, in this embodiment, the first part and the second part are both rectangular, and the two together form the carrier 40.

[0062] In this embodiment, the carrier 40 may be a printed circuit board (PCB). It is understood that in this embodiment, the carrier 40 may be a circuit board or other electronic components. The shape and size of the carrier 40 are not fixed and may vary according to the shape and size of the antenna body 10.

[0063] In this embodiment, the antenna structure 100 further includes a ground layer 50 . The ground layer 50 is disposed on the second surface of the carrier 40 .

[0064] The grounding layer 50 is electrically connected to the integrated module 20. Specifically, in this embodiment, the grounding layer 50 is arranged on a side of the carrier 40 away from the integrated module 20, and the size and shape of the grounding layer 50 correspond to the size of the second portion of the first surface of the carrier 40. It can be understood that in this embodiment, the second surface of the carrier 40 corresponding to the first portion of the first surface of the carrier 40 is not provided with a grounding layer. The grounding layer 50 is also roughly rectangular. After the second portion of the first surface is projected, it can just overlap with the grounding layer 50.

[0065] It can be understood that in other embodiments, the size and shape of the grounding layer 50 are changed according to the shape and size of the antenna body 10. The grounding layer 50 is used to provide grounding for the integrated module 20. In this embodiment, the first surface corresponds to the second surface. The first surface can be the upper surface of the carrier 40, and the second surface corresponds to the lower surface of the carrier 40.

[0066] Please refer again Figure 4 , the antenna structure 100 is arranged in the wireless communication device 200. The wireless communication device 200 is used to establish a communication connection with an external device through the antenna structure 100, thereby realizing wireless communication between devices.

[0067] It can be understood that in this embodiment, the wireless communication device 200 can also be a mobile phone, a personal digital assistant (PDA) or a tablet computer, etc. Of course, the wireless communication device 200 can also be other terminals that can establish a wireless communication connection with an external device, and can be adjusted accordingly according to specific needs, which will not be described in detail in this application.

[0068] Specifically, in this embodiment, the wireless communication device 200 further includes a housing 201, and the housing 201 is used to accommodate the antenna structure 100. It can be understood that in this embodiment, the shape and size of the housing 201 can match the antenna structure 100, so that the antenna structure 100 can be accommodated therein. In this application, the shape and size of the housing 201 are not limited, and can be adaptively adjusted according to specific needs, and this case will not be repeated here.

[0069] In this embodiment, the wireless communication device 200 further includes a power module 210. The power module 210 is electrically connected to the antenna structure 100. The power module 210 provides power to the antenna structure 100. In a preferred embodiment, the power module 210 may be a battery.

[0070] In this embodiment, in the antenna structure 100, the antenna body 10 can be combined with various communication devices and electronic devices, and the antenna body 10 and the electronic devices can be used for high-speed data transmission. For example, the antenna body 10 is used to connect a digital camera, and the antenna body 10 and the digital camera can be used for high-speed data transmission, thereby improving transmission efficiency.

[0071] In this embodiment, the antenna structure 100 has a fast signal transmission speed and can realize multiple communication connections such as one-to-one device communication, one-to-many and many-to-many communication. Therefore, the antenna structure 100 has the advantages of both the Bluetooth antenna and the ultra-wideband antenna. The antenna structure 100 can be regarded as an antenna that integrates the Bluetooth antenna and the ultra-wideband antenna. It can have the functions of Bluetooth compatibility and ultra-wideband high-speed transmission at the same time, and can be used in any communication device.

[0072] The antenna structure 100 in the present application has a simple structure and can communicate with a device equipped with a Bluetooth antenna or a device equipped with an ultra-wideband antenna. Therefore, the antenna structure 100 has strong compatibility and a high transmission rate.

[0073] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention is described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention. Those skilled in the art may also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made according to the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims

1. An antenna structure for establishing a wireless communication connection with an external device, characterized in that: The antenna structure includes an antenna body and an integrated module; The antenna body is electrically connected to the integrated module, and the antenna body is used to receive signals from external devices and transmit the signals to the integrated module; The integrated module is used to receive the signal transmitted by the antenna body and to determine the signal type of the signal; When the signal is a first signal and the frequency value of the signal is a preset frequency value, the antenna structure establishes a communication connection with the external device; when the signal is a second signal and the frequency value of the signal is within a preset frequency range value, the antenna structure establishes a communication connection with the external device; When the signal is not the first signal and / or the frequency value of the signal is not the preset frequency value, and the signal is not the second signal and / or the frequency value of the signal is not within the preset frequency range, the antenna structure does not establish a communication connection with the external device.

2. The antenna structure according to claim 1, characterized in that: The antenna structure further includes a microstrip line, one end of which is electrically connected to the antenna body, and the other end of which is electrically connected to the integrated module. The antenna body transmits the signal to the integrated module via the microstrip line.

3. The antenna structure according to claim 2, characterized in that: The antenna structure further includes a carrier, and the carrier is used to carry the antenna body, the microstrip line and the integrated module.

4. The antenna structure according to claim 3, characterized in that: The antenna structure further includes a grounding layer, which is disposed on a surface of the carrier away from the integrated module, and is used to provide grounding for the integrated module.

5. The antenna structure according to claim 1, wherein: The first signal is a radio frequency signal.

6. The antenna structure according to claim 1, characterized in that: The second signal is a pulse signal.

7. The antenna structure according to claim 1, characterized in that: The preset frequency value is 2.4 GHz, and the preset frequency range value is 3.1 GHz to 10.6 GHz.

8. The antenna structure according to claim 1, characterized in that: The antenna body is a circular single-polarized antenna.

9. A wireless communication device, characterized in that: The wireless communication device comprises a housing and the antenna structure according to any one of claims 1 to 8, wherein the antenna structure is accommodated in the housing.

10. The wireless communication device according to claim 9, wherein: The wireless communication device further comprises a power module, and the power module is used to provide electrical energy to the antenna structure.

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