CN213425202U - Antenna and wearing equipment - Google Patents
Antenna and wearing equipment Download PDFInfo
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- CN213425202U CN213425202U CN202023039922.3U CN202023039922U CN213425202U CN 213425202 U CN213425202 U CN 213425202U CN 202023039922 U CN202023039922 U CN 202023039922U CN 213425202 U CN213425202 U CN 213425202U
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Abstract
The utility model discloses an antenna and a wearable device comprising the same; the antenna comprises an antenna body, two band-pass filters, an antenna combiner, a first matching circuit and a second matching circuit; the two band-pass filters are respectively a first band-pass filter and a second band-pass filter; the antenna combiner is connected with at least two radio frequency receiving and transmitting circuits and is used for sending radio frequency transmitting signals or receiving radio frequency receiving signals; the first matching circuit is respectively connected with the antenna combiner and the antenna body; two ends of the second matching circuit are connected with the first matching circuit in parallel through the first band-pass filter and the second band-pass filter respectively; the first band pass filter is connected with the antenna combiner. The utility model provides an among the prior art a plurality of frequency channel antennas can't reach the best problem of performance simultaneously, improve the antenna of the public antenna body of multifrequency section and the whole communication performance of wearing equipment, shorten research and development cycle, reduce research and development and product cost.
Description
Technical Field
The utility model belongs to the technical field of wireless communication, specifically speaking relates to an antenna and wearing equipment.
Background
In many wireless terminal devices, the GPS module and the BT module share an antenna due to space, cost, and the like. The implementation mode is generally that a GPS receiving circuit and a BT receiving circuit are respectively connected with an antenna combiner through the antenna combiner, and an antenna matching circuit (composed of a capacitor, an inductor and the like) connected with the antenna combiner is shared and then received or radiated by an antenna body.
The existing matching circuit is difficult to be compatible with two radio frequency systems with different frequency bands, namely the existing antenna matching circuit cannot be debugged until an antenna body receives GPS signals and receives and transmits Bluetooth signals in the optimal state. When the element parameters of a group of antenna matching circuits enable the antenna body to receive the GPS signal with the optimal performance, the performance of receiving and transmitting the Bluetooth signal is not in the optimal state; similarly, when the performance of the antenna body for receiving and transmitting the Bluetooth signal is optimal, the performance for receiving the GPS signal is not in an optimal state; affecting communication quality and antenna efficiency.
Disclosure of Invention
The utility model provides an antenna and wearing equipment passes through band pass filter with high frequency matching circuit and low frequency matching circuit and connects in parallel, makes multifrequency section antenna body sharing part matching circuit, realizes that each frequency channel antenna debugs respectively and all reaches the optimality ability, improves debugging efficiency and communication quality, improves the product quality.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
an antenna comprises an antenna body, two band-pass filters, an antenna combiner, a first matching circuit and a second matching circuit;
the two band-pass filters are respectively a first band-pass filter and a second band-pass filter;
the antenna combiner is connected with at least two radio frequency transceiving circuits; the radio frequency transceiving circuit is used for sending out a radio frequency transmitting signal or receiving a radio frequency receiving signal;
the first matching circuit is respectively connected with the antenna combiner and the antenna body;
two ends of the second matching circuit are connected with the first matching circuit in parallel through the first band-pass filter and the second band-pass filter respectively; the first band pass filter is connected with the antenna combiner.
In one embodiment, the number of the radio frequency transceiver circuits is two, and the two radio frequency transceiver circuits are respectively a GPS receiving circuit and a bluetooth transceiver circuit.
In an embodiment, the number of the radio frequency transceiver circuits is two, and the two radio frequency transceiver circuits are respectively a GPS receiving circuit and a WIFI transceiver circuit.
In an embodiment, the number of the radio frequency transceiver circuits is three, and the radio frequency transceiver circuits are respectively a GPS receiving circuit, a bluetooth transceiver circuit and a WIFI transceiver circuit.
In an embodiment, the first band-pass filter and the second band-pass filter are both low-pass filters.
In some embodiments, the antenna further comprises a third matching circuit connected to the antenna body, the first matching circuit and the common terminal of the second band pass filter, respectively.
In some embodiments, the first matching circuit includes a first capacitor, and two ends of the first capacitor are respectively connected to one end of the first band pass filter and one end of the second band pass filter.
In some embodiments, the second matching circuit comprises a second capacitor, a first inductor; two ends of the second capacitor are respectively connected with the other end of the first band-pass filter and the other end of the second band-pass filter; and two ends of the first inductor are respectively connected with the other end of the second band-pass filter, the common end of the second capacitor and the ground.
In some embodiments, the third matching circuit comprises a third capacitor, a second inductor; two ends of the third capacitor are respectively connected with the antenna body, and the common ends of the first capacitor and the second band-pass filter; and two ends of the second inductor are respectively connected with the ground, and the third capacitor is connected with the common end of the antenna body.
A wearing device comprises the antenna.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses an antenna configuration first matching circuit and through band pass filter and the parallelly connected second matching circuit of first matching circuit, realize that the antenna of a frequency channel realizes the performance optimum through debugging first matching circuit; the antenna of the other frequency band shares the first matching circuit and the second matching circuit, and only the second matching circuit is debugged to realize optimal performance; the problem that a plurality of frequency band antennas cannot achieve optimal performance simultaneously in the prior art is solved, the overall performance of the antenna of the multi-frequency band public antenna body is improved, and the quality of the wearable device is improved; in addition, partial matching circuits are shared and are respectively debugged, so that resources are saved, debugging efficiency is improved, and cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a circuit block diagram of an embodiment of an antenna proposed by the present invention;
fig. 2 is a circuit diagram of an embodiment of the antenna in fig. 1.
In the figure, the position of the upper end of the main shaft,
1. a first matching circuit; 2. a second matching circuit; 3. a third matching circuit; D. an antenna combiner; ANT, antenna body; PF1, first band pass filter; PF2, a second band pass filter; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; l1, a first inductor; l2, second inductance.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the present invention provides an antenna, including an antenna body ANT, two band pass filters, an antenna combiner D, a first matching circuit 1, and a second matching circuit 2.
The two band-pass filters are a first band-pass filter PF1 and a second band-pass filter PF 2.
The antenna combiner D is connected with a plurality of radio frequency receiving and transmitting circuits, and respectively realizes that radio frequency transmitting signals sent by one or more radio frequency receiving and transmitting circuits are transmitted to the antenna body ANT through the antenna combiner D to be transmitted out or radio frequency receiving signals transmitted through the antenna combiner D are received by the antenna body ANT.
The first matching circuit 1 is connected with the antenna combiner D and the antenna body ANT respectively to form an antenna of one frequency band. The first matching circuit 1 is debugged to optimize the antenna performance of the frequency band.
The second matching circuit 2 is connected with the first matching circuit 1 in parallel through a first band-pass filter PF1 and a second band-pass filter PF2 respectively, and the first band-pass filter PF1 and the first matching circuit 1 are connected with the antenna combiner D together; the second matching circuit 2 forms an antenna of another frequency band together with the first matching circuit 1. The second matching circuit 2 is debugged to optimize the antenna performance of the frequency band. At this time, due to the blocking of the band pass filter, the debugging of the second matching circuit 2 does not affect the performance of the antenna of the frequency band formed by the first matching circuit 1.
The utility model discloses a wearing equipment includes foretell antenna.
The utility model discloses an antenna and wearing equipment including it dispose first matching circuit 1 and pass through band-pass filter and the first matching circuit 1 second matching circuit 2 that connects in parallel, realize that the antenna of a frequency channel realizes the performance optimum through debugging first matching circuit 1; the antenna of the other frequency band shares the first matching circuit 1 and the second matching circuit 2, and only the second matching circuit 2 is debugged to realize optimal performance; the problem that a matching circuit shared by a plurality of frequency band antennas cannot achieve optimal performance simultaneously in the prior art is solved, the overall communication performance of the antenna of a multi-frequency band common antenna body ANT is improved, and the quality of wearable equipment is improved; in addition, partial matching circuits are shared and are respectively debugged, so that resources are saved, debugging efficiency is improved, and cost is reduced.
The specific structure and principle of the antenna and the wearable device of the present invention are described in detail below by specific embodiments.
In an embodiment, referring to fig. 1 and 2, the number of the radio frequency transceiver circuits is two, and the two radio frequency transceiver circuits are a GPS receiving circuit, a bluetooth transceiver circuit or a WIFI transceiver circuit respectively. The antenna body ANT shared by the GPS antenna and the Bluetooth antenna or the antenna body ANT shared by the GPS antenna and the WIFI antenna is realized, and the optimal performance is achieved.
Certainly, the signal circuit can also include three, be GPS receiving circuit, bluetooth transceiver circuit and WIFI transceiver circuit respectively, realize GPS antenna, bluetooth antenna and WIFI antenna sharing antenna body ANT, and reach the performance optimum simultaneously. Or the antenna body ANT can be shared by other antennas in more frequency bands. The sharing rate of the matching circuit is improved, and the size of the antenna is reduced.
In an embodiment, referring to fig. 1 and 2, the first band pass filter PF1 and the second band pass filter PF2 are both low pass filters. The first matching circuit 1 and the antenna body ANT form a Bluetooth antenna; the first matching circuit 1, the second matching circuit 2 and the antenna body ANT form a GPS antenna.
In an embodiment, referring to fig. 1 and 2, the antenna further includes a third matching circuit 3, which is connected to the antenna ANT, and a common terminal of the first matching circuit 1 and the second band-pass filter PF2, respectively. Together with the first matching circuit 1, form a bluetooth antenna. And the first matching circuit 1 and the second matching circuit 2 form a GPS antenna. Make the main part parameter of GPS antenna and bluetooth antenna fixed, reduce the degree of difficulty of first matching circuit 1, the debugging of second matching circuit 2, improve the stability of GPS antenna, bluetooth antenna performance.
In an embodiment, referring to fig. 1 and 2, the first matching circuit 1 includes a first capacitor C1, two ends of which are respectively connected to one end of the first bandpass filter PF1 and one end of the second bandpass filter PF 2.
The second matching circuit 2 comprises a second capacitor C2, a first inductor L1; two ends of the second capacitor C2 are respectively connected with the other end of the first band-pass filter PF1 and the other end of the second band-pass filter PF 2; both ends of the first inductor L1 are connected to the common terminal of the second capacitor C2 and the other end of the second band-pass filter PF2, and ground, respectively.
The third matching circuit 3 comprises a third capacitor C3 and a second inductor L2; two ends of the third capacitor C3 are respectively connected with the antenna ANT, and the common end of the first capacitor C1 and the second band-pass filter PF 2; two ends of the second inductor L2 are connected to ground, and the third capacitor C3 is connected to the common end of the antenna ANT.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The antenna comprises an antenna body, and is characterized by further comprising:
the two band-pass filters are respectively a first band-pass filter and a second band-pass filter;
the antenna combiner is connected with at least two radio frequency transceiving circuits; the radio frequency transceiving circuit is used for sending out a radio frequency transmitting signal or receiving a radio frequency receiving signal;
a first matching circuit connected to the antenna combiner and the antenna body, respectively;
a second matching circuit, both ends of which are connected in parallel with the first matching circuit through the first band-pass filter and the second band-pass filter respectively; the first band pass filter is connected with the antenna combiner.
2. The antenna of claim 1, wherein the number of the radio frequency transceiver circuits is two, and the two radio frequency transceiver circuits are a GPS receiving circuit and a bluetooth transceiver circuit respectively.
3. The antenna of claim 1, wherein the number of the radio frequency transceiver circuits is two, and the two radio frequency transceiver circuits are a GPS receiving circuit and a WIFI transceiver circuit respectively.
4. The antenna of claim 1, wherein the number of the radio frequency transceiver circuits is three, and the three radio frequency transceiver circuits are a GPS receiver circuit, a bluetooth transceiver circuit and a WIFI transceiver circuit.
5. The antenna of claim 1, wherein the first band pass filter and the second band pass filter are each low pass filters.
6. The antenna according to any one of claims 1 to 5, further comprising a third matching circuit connected to a common terminal of the antenna body, the first matching circuit and the second band-pass filter, respectively.
7. The antenna of claim 6, wherein the first matching circuit comprises a first capacitor, and two ends of the first capacitor are respectively connected to one end of the first band pass filter and one end of the second band pass filter.
8. The antenna of claim 7, wherein the second matching circuit comprises a second capacitor, a first inductor; two ends of the second capacitor are respectively connected with the other end of the first band-pass filter and the other end of the second band-pass filter; and two ends of the first inductor are respectively connected with the other end of the second band-pass filter, the common end of the second capacitor and the ground.
9. The antenna of claim 8, wherein the third matching circuit comprises a third capacitor, a second inductor; two ends of the third capacitor are respectively connected with the antenna body, and the common ends of the first capacitor and the second band-pass filter; and two ends of the second inductor are respectively connected with the ground, and the third capacitor is connected with the common end of the antenna body.
10. A wearable device, characterized by comprising an antenna according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023039922.3U CN213425202U (en) | 2020-12-16 | 2020-12-16 | Antenna and wearing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023039922.3U CN213425202U (en) | 2020-12-16 | 2020-12-16 | Antenna and wearing equipment |
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| CN213425202U true CN213425202U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023039922.3U Active CN213425202U (en) | 2020-12-16 | 2020-12-16 | Antenna and wearing equipment |
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| CN (1) | CN213425202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098998A1 (en) * | 2022-11-09 | 2024-05-16 | Oppo广东移动通信有限公司 | Radio frequency module, wearable device, and electronic device |
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2020
- 2020-12-16 CN CN202023039922.3U patent/CN213425202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098998A1 (en) * | 2022-11-09 | 2024-05-16 | Oppo广东移动通信有限公司 | Radio frequency module, wearable device, and electronic device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221227 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronics office building) Patentee before: GoerTek Optical Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |