CN211605388U - Double-antenna WIFI module with antenna switching function - Google Patents
Double-antenna WIFI module with antenna switching function Download PDFInfo
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- CN211605388U CN211605388U CN202020044216.9U CN202020044216U CN211605388U CN 211605388 U CN211605388 U CN 211605388U CN 202020044216 U CN202020044216 U CN 202020044216U CN 211605388 U CN211605388 U CN 211605388U
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Abstract
The utility model relates to the technical field of WIFI, a double-antenna WIFI module with antenna switching function is disclosed, which comprises a chip and a switching module, wherein the switching module comprises a single-pole double-throw switch, a first antenna unit and a second antenna unit; according to the method, the RSSI value of the current environment is read through RSSI value detection equipment inside the printer, a chip inside the printer enables a VC1 pin and a VC2 pin of a single-pole double-throw switch to output high level or low level according to the RSSI value, if the VC1 pin outputs high level and the VC2 pin outputs low level, a first antenna unit is started, and a second antenna unit is closed; if the pin VC1 outputs low level and the pin VC2 outputs high level, the second antenna unit is opened and the first antenna unit is closed. Therefore, by means of the mode, the wide signal coverage range can be guaranteed, meanwhile, the energy consumption of the WIFI module can be reduced, and the production cost is reduced.
Description
Technical Field
The utility model relates to a WIFI technical field especially relates to a two antenna WIFI modules with switch antenna function.
Background
At present, WIFI is a technology capable of connecting terminals such as personal computers and handheld devices (e.g., PDAs and mobile phones) to each other in a wireless manner.
However, most of current printers are equipped with a single-receiver-single-transmitter WIFI module, and because there is only one antenna, the coverage area is narrow; although the WIFI module with double receiving and double sending is installed on a small part of printers, because the WIFI module with double receiving and double sending has two antennas, the coverage can be improved, in the practical application process, most of one antenna is in an idle state, the energy consumption of the WIFI module is further increased, and meanwhile, the cost of using the WIFI module with double receiving and double sending is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide one kind can reduce the energy consumption of WIFI module, can reduce cost have the double antenna WIFI module of switching antenna function.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a two antenna WIFI module with switch antenna function, includes: the chip is electrically connected with the switching module;
the switching module comprises a single-pole double-throw switch Q1, a first antenna unit and a second antenna unit, the single-pole double-throw switch Q1 is electrically connected with the chip, the first antenna unit comprises a first capacitor C1, a first resistor R1 and a first diode Q2, the second antenna unit comprises a second capacitor C2, a second resistor R2 and a second diode Q3, one end of the first capacitor C1 is electrically connected with a first pin of the single-pole double-throw switch Q1, the other end of the first capacitor C1 is electrically connected with a first end of the first diode Q2, a second end of the first diode Q2 is grounded, the first resistor R1 is electrically connected with a first end of the first diode Q2, one end of the second capacitor C2 is electrically connected with a second pin of the single-pole double-throw switch Q1, and the other end of the second capacitor C2 is electrically connected with a first end of the second diode Q3, the second end of the second diode Q3 is grounded, and the second resistor R2 is electrically connected to the first end of the second diode Q3.
In one embodiment, the crystal oscillator further comprises a crystal oscillator module, the crystal oscillator module comprises a third capacitor C3, an oscillator X1 and a fourth capacitor C4, one end of the third capacitor C3 is grounded, the other end of the third capacitor C3 is electrically connected with the oscillator X1, the oscillator X1 is electrically connected with the chip, one end of the fourth capacitor C4 is grounded, and the other end of the fourth capacitor C4 is electrically connected with the oscillator X1.
In one embodiment, the first antenna unit further includes a fifth capacitor C5 and a sixth capacitor C6, one end of the fifth capacitor C5 is grounded, the other end of the fifth capacitor C5 is electrically connected to the first end of the first diode Q2, one end of the sixth capacitor C6 is grounded, and the other end of the sixth capacitor C6 is electrically connected to the first resistor R1.
In one embodiment, the second antenna unit further includes a seventh capacitor C7 and an eighth capacitor C8, one end of the seventh capacitor C7 is grounded, the other end of the seventh capacitor C7 is electrically connected to the first end of the second diode Q3, one end of the eighth capacitor C8 is grounded, and the other end of the eighth capacitor C8 is electrically connected to the second resistor R2.
In one embodiment, the filter further includes a first filtering module, the first filtering module further includes a ninth capacitor C9, a third resistor R3, a fourth resistor R4 and a fifth resistor R5, one end of the ninth capacitor C9 is grounded, the other end of the ninth capacitor C9 is electrically connected to the chip, the third resistor R3 is electrically connected to the chip, the fourth resistor R4 is electrically connected to the chip, one end of the fifth resistor R5 is electrically connected to the chip, and the other end of the fifth resistor R5 is grounded.
In one embodiment, the apparatus further includes a second filtering module, the second filtering module includes a sixth resistor R6 and a tenth capacitor C10, one end of the sixth resistor R6 is electrically connected to one end of the tenth capacitor C10, the other end of the sixth resistor R6 is electrically connected to the chip, and the other end of the tenth capacitor C10 is grounded.
In one embodiment, the electronic device further includes a third filtering module, the third filtering module includes a seventh resistor R7 and an eleventh capacitor C11, one end of the seventh resistor R7 is electrically connected to one end of the eleventh capacitor C11, the other end of the seventh resistor R7 is electrically connected to the chip, and the other end of the eleventh capacitor C11 is grounded.
In one embodiment, the electronic device further includes a fourth filtering module, the fourth filtering module includes a twelfth capacitor C12, a thirteenth capacitor C13 and a fourteenth capacitor C14, one end of the twelfth capacitor C12 is electrically connected to the chip, the other end of the twelfth capacitor C12 is grounded, one end of the thirteenth capacitor C13 is electrically connected to the chip, the other end of the thirteenth capacitor C13 is grounded, one end of the fourteenth capacitor C14 is electrically connected to the chip, and the other end of the fourteenth capacitor C14 is grounded.
In one embodiment, the switching module further includes a fifteenth capacitor C15, a first inductor L1, a sixteenth capacitor C16 and a seventeenth capacitor C17, a first end of the fifteenth capacitor C15 is electrically connected to the chip, a second end of the fifteenth capacitor C15 is grounded, a first end of the first inductor L1 is electrically connected to the first end of the fifteenth capacitor C15, a second end of the first inductor L1 is electrically connected to one end of the sixteenth capacitor C16, another end of the sixteenth capacitor C16 is grounded, one end of the seventeenth capacitor C17 is electrically connected to the second end of the first inductor L1, and another end of the seventeenth capacitor C17 is electrically connected to the single-pole double-throw switch Q1.
In one embodiment, the chip further comprises an eighth resistor R8, one end of the eighth resistor R8 is electrically connected with the chip, and the other end of the eighth resistor R8 is used for being electrically connected with an external power supply.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the utility model relates to a two antenna WIFI module with switch antenna function, this application reads the size of the RSSI value of current environment through the inside RSSI value detection equipment of printer, and the inside chip of printer makes VC1 pin and VC2 pin output high level or low level of single-pole double-throw Q1 according to the RSSI value, if VC1 pin output high level, VC2 pin output low level, then first antenna element opens, and the second antenna element closes; if the pin VC1 outputs low level and the pin VC2 outputs high level, the second antenna unit is opened and the first antenna unit is closed. Therefore, by means of the mode, the wide signal coverage range can be guaranteed, meanwhile, the energy consumption of the WIFI module can be reduced, and the production cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a functional block diagram of a dual-antenna WIFI module with a switching antenna function according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a switching module according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a crystal oscillator module according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a chip according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a dual-antenna WIFI module 10 with antenna switching function includes: chip 100 and switching module 200, chip 100 and switching module 200 are electrically connected.
Referring to fig. 2, the switching module 200 includes a single-pole double-throw switch Q1, a first antenna element and a second antenna element, the single-pole double-throw switch Q1 is electrically connected to the chip, the first antenna element includes a first capacitor C1, the antenna comprises a first resistor R1 and a first diode Q2, the second antenna unit comprises a second capacitor C2, a second resistor R2 and a second diode Q3, one end of the first capacitor C1 is electrically connected with a first pin of a single-pole double-throw switch Q1, the other end of the first capacitor C1 is electrically connected with a first end of the first diode Q2, a second end of the first diode Q2 is grounded, the first resistor R1 is electrically connected with a first end of a first diode Q2, one end of the second capacitor C2 is electrically connected with a second pin of the single-pole double-throw switch Q1, the other end of the second capacitor C2 is electrically connected with a first end of a second diode Q3, a second end of the second diode Q3 is grounded, and the second resistor R2 is electrically connected with a first end of a second diode Q3.
It should be noted that the single-pole double-throw switch Q1 in this application is model RTC6608 OSP. Furthermore, the RSSI value of the environment where the printer is located is detected by setting RSSI value detection equipment inside the printer, then a chip inside the printer enables a VC1 pin and a VC2 pin of a single-pole double-throw switch Q1 to output high level or low level according to the RSSI value, if the VC1 pin outputs high level and the VC2 pin outputs low level, the first antenna unit is started, and the second antenna unit is closed; if the pin VC1 outputs low level and the pin VC2 outputs high level, the second antenna unit is opened and the first antenna unit is closed. Therefore, by means of the mode, the wide signal coverage range can be guaranteed, meanwhile, the energy consumption of the WIFI module can be reduced, and the production cost is reduced.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes a crystal oscillator module, the crystal oscillator module includes a third capacitor C3, an oscillator X1, and a fourth capacitor C4, one end of the third capacitor C3 is grounded, the other end of the third capacitor C3 is electrically connected to the oscillator X1, the oscillator X1 is electrically connected to the chip, one end of the fourth capacitor C4 is grounded, and the other end of the fourth capacitor C4 is electrically connected to the oscillator X1.
It should be noted that the oscillator X1 is used for receiving the transmission frequency and providing a signal to the chip of the WIFI module.
Referring to fig. 2, the first antenna unit further includes a fifth capacitor C5 and a sixth capacitor C6, wherein one end of the fifth capacitor C5 is grounded, the other end of the fifth capacitor C5 is electrically connected to the first end of the first diode Q2, one end of the sixth capacitor C6 is grounded, and the other end of the sixth capacitor C6 is electrically connected to the first resistor R1.
It should be noted that no component is attached to the fifth capacitor C5 and the sixth capacitor C6, so as to reserve pad positions for the PCB.
Referring to fig. 2, the second antenna unit further includes a seventh capacitor C7 and an eighth capacitor C8, wherein one end of the seventh capacitor C7 is grounded, the other end of the seventh capacitor C7 is electrically connected to the first end of the second diode Q3, one end of the eighth capacitor C8 is grounded, and the other end of the eighth capacitor C8 is electrically connected to the second resistor R2.
It should be noted that no component is attached to the seventh capacitor C7 and the eighth capacitor C8, which are used to reserve pad positions for the PCB.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes a first filtering module, the first filtering module further includes a ninth capacitor C9, a third resistor R3, a fourth resistor R4 and a fifth resistor R5, one end of the ninth capacitor C9 is grounded, the other end of the ninth capacitor C9 is electrically connected to the chip, the third resistor R3 is electrically connected to the chip, the fourth resistor R4 is electrically connected to the chip, one end of the fifth resistor R5 is electrically connected to the chip, and the other end of the fifth resistor R5 is grounded.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes a second filtering module, the second filtering module includes a sixth resistor R6 and a tenth capacitor C10, one end of the sixth resistor R6 is electrically connected to one end of the tenth capacitor C10, the other end of the sixth resistor R6 is electrically connected to the chip, and the other end of the tenth capacitor C10 is grounded.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes a third filtering module, the third filtering module includes a seventh resistor R7 and an eleventh capacitor C11, one end of the seventh resistor R7 is electrically connected to one end of the eleventh capacitor C11, the other end of the seventh resistor R7 is electrically connected to the chip, and the other end of the eleventh capacitor C11 is grounded.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes a fourth filtering module, the fourth filtering module includes a twelfth capacitor C12, a thirteenth capacitor C13 and a fourteenth capacitor C14, one end of the twelfth capacitor C12 is electrically connected to the chip, the other end of the twelfth capacitor C12 is grounded, one end of the thirteenth capacitor C13 is electrically connected to the chip, the other end of the thirteenth capacitor C13 is grounded, one end of the fourteenth capacitor C14 is electrically connected to the chip, and the other end of the fourteenth capacitor C14 is grounded.
It should be noted that the first filtering module, the second filtering module, the third filtering module and the fourth filtering module are all used for filtering out ripples in the circuit.
Referring to fig. 3, the switching module 200 further includes a fifteenth capacitor C15, a first inductor L1, a sixteenth capacitor C16 and a seventeenth capacitor C17, wherein a first end of the fifteenth capacitor C15 is electrically connected to the chip, a second end of the fifteenth capacitor C15 is grounded, a first end of the first inductor L1 is electrically connected to a first end of the fifteenth capacitor C15, a second end of the first inductor L1 is electrically connected to one end of the sixteenth capacitor C16, another end of the sixteenth capacitor C16 is grounded, one end of the seventeenth capacitor C17 is electrically connected to a second end of the first inductor L1, and another end of the seventeenth capacitor C17 is electrically connected to the single-pole double-throw switch Q1.
It should be noted that, what is also formed by the fifteenth capacitor C15, the first inductor L1, the sixteenth capacitor C16 and the seventeenth capacitor C17 is a filtering module for filtering out ripples in the switching module.
Referring to fig. 3, the dual-antenna WIFI module 10 with antenna switching function further includes an eighth resistor R8, one end of the eighth resistor R8 is electrically connected to the chip, and the other end of the eighth resistor R8 is electrically connected to an external power source.
Compared with the prior art, the utility model has the advantages of it is following:
according to the dual-antenna WIFI module 10 with the antenna switching function, the RSSI value of the current environment is read through RSSI value detection equipment inside the printer, a chip inside the printer enables a VC1 pin and a VC2 pin of a single-pole double-throw switch Q1 to output high level or low level according to the RSSI value, if the VC1 pin outputs high level and the VC2 pin outputs low level, the first antenna unit is started, and the second antenna unit is closed; if the pin VC1 outputs low level and the pin VC2 outputs high level, the second antenna unit is opened and the first antenna unit is closed. Therefore, by means of the mode, the wide signal coverage range can be guaranteed, meanwhile, the energy consumption of the WIFI module can be reduced, and the production cost is reduced.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a two antenna WIFI module with switch antenna function which characterized in that includes: the chip is electrically connected with the switching module;
the switching module comprises a single-pole double-throw switch, a first antenna unit and a second antenna unit, the single-pole double-throw switch is electrically connected with the chip, the first antenna unit comprises a first capacitor, a first resistor and a first diode, the second antenna unit comprises a second capacitor, a second resistor and a second diode, one end of the first capacitor is electrically connected with the first pin of the single-pole double-throw switch, the other end of the first capacitor is electrically connected with the first end of the first diode, the second end of the first diode is grounded, the first resistor is electrically connected with the first end of the first diode, one end of the second capacitor is electrically connected with the second pin of the single-pole double-throw switch, the other end of the second capacitor is electrically connected with the first end of the second diode, the second end of the second diode is grounded, and the second resistor is electrically connected with the first end of the second diode.
2. The dual-antenna WIFI module with the antenna switching function according to claim 1, further comprising a crystal oscillator module, wherein the crystal oscillator module comprises a third capacitor, an oscillator and a fourth capacitor, one end of the third capacitor is grounded, the other end of the third capacitor is electrically connected with the oscillator, the oscillator is electrically connected with the chip, one end of the fourth capacitor is grounded, and the other end of the fourth capacitor is electrically connected with the oscillator.
3. The dual-antenna WIFI module with switched antenna function of claim 1, wherein the first antenna unit further includes a fifth capacitor and a sixth capacitor, one end of the fifth capacitor is grounded, the other end of the fifth capacitor is electrically connected to the first end of the first diode, one end of the sixth capacitor is grounded, and the other end of the sixth capacitor is electrically connected to the first resistor.
4. The dual-antenna WIFI module with a switched antenna function of claim 1, wherein the second antenna unit further includes a seventh capacitor and an eighth capacitor, one end of the seventh capacitor is grounded, the other end of the seventh capacitor is electrically connected to the first end of the second diode, one end of the eighth capacitor is grounded, and the other end of the eighth capacitor is electrically connected to the second resistor.
5. The dual-antenna WIFI module with the antenna switching function according to claim 1, further comprising a first filtering module, wherein the first filtering module further comprises a ninth capacitor, a third resistor, a fourth resistor and a fifth resistor, one end of the ninth capacitor is grounded, the other end of the ninth capacitor is electrically connected to the chip, the third resistor is electrically connected to the chip, the fourth resistor is electrically connected to the chip, one end of the fifth resistor is electrically connected to the chip, and the other end of the fifth resistor is grounded.
6. The dual-antenna WIFI module with the antenna switching function according to claim 1, further comprising a second filtering module, wherein the second filtering module comprises a sixth resistor and a tenth capacitor, one end of the sixth resistor is electrically connected with one end of the tenth capacitor, the other end of the sixth resistor is electrically connected with the chip, and the other end of the tenth capacitor is grounded.
7. The dual-antenna WIFI module with the antenna switching function according to claim 1, further comprising a third filtering module, wherein the third filtering module includes a seventh resistor and an eleventh capacitor, one end of the seventh resistor is electrically connected to one end of the eleventh capacitor, the other end of the seventh resistor is electrically connected to the chip, and the other end of the eleventh capacitor is grounded.
8. The dual-antenna WIFI module with a switched antenna function of claim 1, further comprising a fourth filtering module, wherein the fourth filtering module includes a twelfth capacitor, a thirteenth capacitor and a fourteenth capacitor, one end of the twelfth capacitor is electrically connected to the chip, the other end of the twelfth capacitor is grounded, one end of the thirteenth capacitor is electrically connected to the chip, the other end of the thirteenth capacitor is grounded, one end of the fourteenth capacitor is electrically connected to the chip, and the other end of the fourteenth capacitor is grounded.
9. The dual-antenna WIFI module with a switched antenna function of claim 1, wherein the switching module further includes a fifteenth capacitor, a first inductor, a sixteenth capacitor and a seventeenth capacitor, a first end of the fifteenth capacitor is electrically connected to the chip, a second end of the fifteenth capacitor is connected to ground, a first end of the first inductor is electrically connected to a first end of the fifteenth capacitor, a second end of the first inductor is electrically connected to one end of the sixteenth capacitor, another end of the sixteenth capacitor is connected to ground, one end of the seventeenth capacitor is electrically connected to a second end of the first inductor, and another end of the seventeenth capacitor is electrically connected to the single-pole double-throw switch.
10. The dual-antenna WIFI module with the antenna switching function according to claim 1, further comprising an eighth resistor, wherein one end of the eighth resistor is electrically connected to the chip, and the other end of the eighth resistor is electrically connected to an external power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020044216.9U CN211605388U (en) | 2020-01-09 | 2020-01-09 | Double-antenna WIFI module with antenna switching function |
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| CN202020044216.9U CN211605388U (en) | 2020-01-09 | 2020-01-09 | Double-antenna WIFI module with antenna switching function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415579A (en) * | 2022-03-31 | 2022-04-29 | 深圳市道和实业有限公司 | Low-power-consumption outdoor monitoring control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415579A (en) * | 2022-03-31 | 2022-04-29 | 深圳市道和实业有限公司 | Low-power-consumption outdoor monitoring control system |
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