CN220492195U - Low-frequency intelligent watch antenna - Google Patents
Low-frequency intelligent watch antenna Download PDFInfo
- Publication number
- CN220492195U CN220492195U CN202321923252.2U CN202321923252U CN220492195U CN 220492195 U CN220492195 U CN 220492195U CN 202321923252 U CN202321923252 U CN 202321923252U CN 220492195 U CN220492195 U CN 220492195U
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- branch joint
- frequency branch
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- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a low-frequency intelligent watch antenna, and relates to the technical field of watch antennas. The low-frequency branch joint and the high-frequency branch joint are connected with the low-frequency branch joint and the low-frequency branch joint respectively, and the low-frequency branch joint and the high-frequency branch joint are connected with the high-frequency branch joint by the aid of the switch, and the low-frequency branch joint and the high-frequency branch joint comprise: the switch chip U1 is in telecommunication connection with the 1 end and the 10 end of the switch chip U1, the 5 end of the switch chip U1 is in telecommunication connection with the V1 end, and the 6 end of the switch chip U1 is in telecommunication connection with the V2 end; according to the low-frequency intelligent watch antenna, the low-frequency branch joint is added from the ground of the antenna, the electric length of the low-frequency branch joint is slightly longer than one quarter wavelength of low frequency, so that a new waveform can be generated at the position where the frequency of the original low-frequency branch joint is slightly lower, the waveform frequencies of the two branch joints are similar, and a W-shaped waveform is generated, so that the effects of widening the low-frequency bandwidth and improving the low-frequency efficiency are achieved.
Description
Technical Field
The utility model relates to the technical field of watch antennas, in particular to a low-frequency intelligent watch antenna.
Background
With the development of mobile technology, many conventional electronic products have been added with functions in terms of movement, such as watches that can only be used for time in the past, and today, they can also be connected to the internet through smart phones or home networks to display incoming call information, twitter and news feeds, weather information, etc.
During the use process of the intelligent watch, an antenna is needed to realize the real-time positioning function of the watch; as a new type of mobile electronic product, a smart watch is generally required to work simultaneously with a plurality of communication standards in a smaller size in order to meet application requirements. The existing smart watch antenna products generally adopt a built-in antenna technology, and a single antenna can cover a plurality of frequency bands. The watch has small volume, multiple frequency bands, long and short main board, and low frequency efficiency is low because of the poor excitation radiation of low frequency, and the prior antenna technology is generally realized by the combination and debugging of a switch which can simultaneously control on-off by medium and high frequency branches, low frequency branches and multiple paths.
Because the whole machine space is small, more antennas cannot be laid out, the watch antenna generally covers a plurality of frequency bands by a single antenna, as shown in the conventional scheme of the figure, the watch antenna generally has middle and high frequency branches, and the multiplexing of the low frequency branches can be realized by the combination and debugging of a switch capable of controlling on-off simultaneously, and the scheme has narrow low frequency bandwidth and low radiation efficiency; in view of this, we propose a low frequency smart watch antenna.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a low-frequency intelligent watch antenna, which solves the problems mentioned in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the low-frequency intelligent watch antenna comprises a switch adjusting on-off circuit, a widening low-frequency branch, a low-frequency branch and a high-frequency branch, wherein the switch adjusting on-off circuit is connected with the widening low-frequency branch and the low-frequency branch through a power-saving communication respectively, and the low-frequency branch is connected with the high-frequency branch through the power-saving communication;
the switch regulating on-off circuit comprises: the switch chip U1, 1 end and 10 end telecommunications of switch chip U1 are connected, 5 end and the V1 end telecommunications of switch chip U1 are connected, 6 end and the V2 end telecommunications of switch chip U1 are connected, 3 end and the V3 end telecommunications of switch chip U1 are connected, 2 end and the one end telecommunications of inductance L2 of switch chip U1 are connected, the other end ground connection of inductance L2, the 9 end and the one end telecommunications of inductance L1 of switch chip U1, the other end ground connection of inductance L1, the 8 end and the one end electricity of electric capacity C1 of switch chip U1, the other end ground connection of electric capacity C1.
Optionally, the type of the switch chip U1 is MXD8544a.
Optionally, the 7 end of the switch chip U1 is grounded, and the 4 end of the switch chip U1 is in telecommunication connection with the +3v end.
Optionally, the capacitor C1, the inductor L1 and the inductor L2 are connected in parallel, the size of the inductor L1 is 15.6nH, the size of the inductor L2 is 26.8nH, and the size of the capacitor C1 is 2pF.
Optionally, the 10 end of the switch chip U1 is electrically connected to the antenna A1 end.
The utility model provides a low-frequency intelligent watch antenna. The beneficial effects are as follows:
according to the low-frequency intelligent watch antenna, the low-frequency branch joint is added from the ground of the antenna, the electric length of the low-frequency branch joint is slightly longer than one quarter wavelength of low frequency, so that a new waveform can be generated at the position where the frequency of the original low-frequency branch joint is slightly lower, the waveform frequencies of the two branch joints are similar, and a W-shaped waveform is generated, so that the effects of widening the low-frequency bandwidth and improving the low-frequency efficiency are achieved.
Drawings
Fig. 1 is a schematic diagram of an antenna according to the present utility model;
fig. 2 is a schematic diagram of a switching regulator circuit according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: a low-frequency intelligent watch antenna comprises a switch adjusting on-off circuit, a widening low-frequency branch, a low-frequency branch and a high-frequency branch, wherein the switch adjusting on-off circuit is connected with the widening low-frequency branch and the low-frequency branch through a power-saving communication respectively, and the low-frequency branch is connected with the high-frequency branch through the power-saving communication;
the switch regulating on-off circuit comprises: the switch chip U1, 1 end and 10 end telecommunications connection of switch chip U1, the 5 end and the V1 end telecommunications connection of switch chip U1, the 6 end and the V2 end telecommunications connection of switch chip U1, the 3 end and the V3 end telecommunications connection of switch chip U1, the 2 end and the one end telecommunications connection of inductance L2 of switch chip U1, the other end ground connection of inductance L2, the 9 end and the one end telecommunications connection of inductance L1 of switch chip U1, the other end ground connection of inductance L1, the 8 end and the one end electricity connection of electric capacity C1 of switch chip U1, the other end ground connection of electric capacity C1.
The type of the switch chip U1 is MXD8544A. The 7 end of the switch chip U1 is grounded, and the 4 end of the switch chip U1 is in telecommunication connection with the +3V end. The capacitor C1, the inductor L1 and the inductor L2 are mutually connected in parallel, the size of the inductor L1 is 15.6nH, the size of the inductor L2 is 26.8nH, and the size of the capacitor C1 is 2pF. The 10 terminal of the switch chip U1 is electrically connected to the antenna A1 terminal.
When the device is used, the resident bit 1 is reserved, the resident bit 1 is only used for connecting the widened low-frequency branch node when the widened low-frequency branch node is increased and the middle and low frequencies are not influenced, and the device can be combined with the switch bit 2 to tune the widened low-frequency branch node to different frequencies; the condition that the widened low-frequency branch has influence on middle and low frequencies is added, and only the switch bit 2 is used for tuning the widened low-frequency branch to different frequencies; where "2" is a plurality of switching paths.
In addition, a low-frequency branch is added from the ground of the antenna, the electric length of the low-frequency branch is slightly longer than one quarter wavelength of low frequency, so that a new waveform is generated at the position where the frequency of the original low-frequency branch is slightly lower, and the waveform frequencies of the two branches are similar, thereby generating a W-shaped waveform, and achieving the effects of widening the low-frequency bandwidth and improving the low-frequency efficiency.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A low frequency intelligent wrist-watch antenna, its characterized in that: the low-frequency branch node is connected with the high-frequency branch node by a power supply, and the low-frequency branch node is connected with the low-frequency branch node by a power supply;
the switch regulating on-off circuit comprises: the switch chip U1, 1 end and 10 end telecommunications of switch chip U1 are connected, 5 end and the V1 end telecommunications of switch chip U1 are connected, 6 end and the V2 end telecommunications of switch chip U1 are connected, 3 end and the V3 end telecommunications of switch chip U1 are connected, 2 end and the one end telecommunications of inductance L2 of switch chip U1 are connected, the other end ground connection of inductance L2, the 9 end and the one end telecommunications of inductance L1 of switch chip U1, the other end ground connection of inductance L1, the 8 end and the one end electricity of electric capacity C1 of switch chip U1, the other end ground connection of electric capacity C1.
2. The low frequency smart watch antenna of claim 1, wherein: the type of the switch chip U1 is MXD8544A.
3. The low frequency smart watch antenna of claim 1, wherein: the 7 end of the switch chip U1 is grounded, and the 4 end of the switch chip U1 is in telecommunication connection with the +3V end.
4. The low frequency smart watch antenna of claim 1, wherein: the capacitor C1, the inductor L1 and the inductor L2 are mutually connected in parallel, the size of the inductor L1 is 15.6nH, the size of the inductor L2 is 26.8nH, and the size of the capacitor C1 is 2pF.
5. The low frequency smart watch antenna of claim 1, wherein: the 10 end of the switch chip U1 is electrically connected with the end of the antenna A1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321923252.2U CN220492195U (en) | 2023-07-21 | 2023-07-21 | Low-frequency intelligent watch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321923252.2U CN220492195U (en) | 2023-07-21 | 2023-07-21 | Low-frequency intelligent watch antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492195U true CN220492195U (en) | 2024-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321923252.2U Active CN220492195U (en) | 2023-07-21 | 2023-07-21 | Low-frequency intelligent watch antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220492195U (en) |
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2023
- 2023-07-21 CN CN202321923252.2U patent/CN220492195U/en active Active
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