CN211453789U - Antenna detection circuit and electronic equipment - Google Patents
Antenna detection circuit and electronic equipment Download PDFInfo
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- CN211453789U CN211453789U CN201921774093.8U CN201921774093U CN211453789U CN 211453789 U CN211453789 U CN 211453789U CN 201921774093 U CN201921774093 U CN 201921774093U CN 211453789 U CN211453789 U CN 211453789U
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Abstract
The utility model provides an antenna detection circuit and electronic equipment, this antenna detection circuit include N radio frequency sub circuit and detection sub circuit, N is for being greater than 1 positive integer, and each radio frequency sub circuit all includes test seat, first resistance, second resistance, first inductance and second inductance; the test seat is used for placing a test wire connected with the antenna to be tested; the first end of the first inductor is connected with the power supply through a first resistor, and the second end of the first inductor is connected with the first end of the test socket; the first end of the second resistor is connected with the first end of the first inductor; the first end of the second inductor is connected with the second end of the test socket, and the second end of the second inductor is grounded; the second end of the test seat is also connected with the radio frequency conducting end; and second ends of second resistors of different radio frequency sub-circuits are respectively connected with different input ends in the detection sub-circuit, and an output end of the detection sub-circuit is connected with the level detection unit. The embodiment of the utility model provides a can simplify the process of detection.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to an antenna detection circuitry and electronic equipment.
Background
With the rapid development of terminal technology, electronic devices have become an essential tool in people's life, and bring great convenience to various aspects of user's life. In the prior art, detection is generally required according to the state of the electronic device, and the radiation amount, efficiency, power consumption and the like of the electronic device can be adjusted according to the detection result.
However, in the prior art, a detection port needs to be configured for the detection circuit of each antenna for detection, which results in a complicated detection process.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an antenna detection circuitry and electronic equipment to among the solution prior art, need detect for a detection port of the detection circuitry configuration of every antenna, lead to the more complicated problem of process that detects.
In a first aspect, an embodiment of the present invention provides an antenna detection circuit, including N radio frequency sub-circuits and a detection sub-circuit, where N is a positive integer greater than 1, and each of the radio frequency sub-circuits includes a test socket, a first resistor, a second resistor, a first inductor, and a second inductor;
the test socket is used for placing a test wire connected with the antenna to be tested;
the first end of the first inductor is connected with a power supply through the first resistor, and the second end of the first inductor is connected with the first end of the test socket;
the first end of the second resistor is connected with the first end of the first inductor;
the first end of the second inductor is connected with the second end of the test socket, and the second end of the second inductor is grounded; the second end of the test seat is also connected with the radio frequency conducting end;
and second ends of second resistors of different radio frequency sub-circuits are respectively connected with different input ends in the detection sub-circuit, and an output end of the detection sub-circuit is connected with the level detection unit.
In a second aspect, the embodiment of the present invention further provides an electronic device, including the above antenna detection circuit.
The antenna detection circuit provided by the embodiment of the utility model comprises N radio frequency sub-circuits and detection sub-circuits, wherein N is a positive integer greater than 1, and each radio frequency sub-circuit comprises a test seat, a first resistor, a second resistor, a first inductor and a second inductor; the test socket is used for placing a test wire connected with the antenna to be tested; the first end of the first inductor is connected with a power supply through the first resistor, and the second end of the first inductor is connected with the first end of the test socket; the first end of the second resistor is connected with the first end of the first inductor; the first end of the second inductor is connected with the second end of the test socket, and the second end of the second inductor is grounded; the second end of the test seat is also connected with the radio frequency conducting end; and second ends of second resistors of different radio frequency sub-circuits are respectively connected with different input ends in the detection sub-circuit, and an output end of the detection sub-circuit is connected with the level detection unit. In this way, detection can be performed only by detecting the output end of the sub-circuit, so that the detection process can be simplified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is one of the structural diagrams of an antenna detection circuit provided in the embodiment of the present invention;
fig. 2 is a second structural diagram of an antenna detection circuit according to an embodiment of the present invention;
fig. 3 is a third structural diagram of an antenna detection circuit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a structural diagram of an antenna detection circuit provided in an embodiment of the present invention, as shown in fig. 1, including N radio frequency sub-circuits and a detection sub-circuit 1, where N is a positive integer greater than 1, and each of the radio frequency sub-circuits includes a test socket 2, a first resistor R1, a second resistor R2, a first inductor L1, and a second inductor L2; the test socket 2 is used for placing a test wire connected with the antenna 3 to be tested; a first end of the first inductor L1 is connected with a power supply through the first resistor R1, and a second end of the first inductor L1 is connected with a first end of the test socket 2; a first end of the second resistor R2 is connected with a first end of the first inductor L1; the first end of the second inductor L2 is connected with the second end of the test socket 2, and the second end of the second inductor L2 is grounded; the second end of the test seat 2 is also connected with a radio frequency conducting end; the second ends of the second resistors R2 of different rf sub-circuits are respectively connected to different input ends of the detection sub-circuit 1, and the output end of the detection sub-circuit 1 is connected to the level detection unit.
In this embodiment, the level detection unit may perform level detection, the power supplies connected to the different rf sub-circuits may be the same power supply or different power supplies, and the rf conduction terminals connected to the different rf sub-circuits are different rf conduction terminals. Considering the actual test situation of the electronic device, as long as one radio frequency sub-circuit is in the conduction test state, the electronic device cannot perform the coupling test. Once more than one radio frequency sub-circuit is detected to be in the conduction test state, other radio frequency sub-circuits do not need to be judged, and the adjustment operation of the state of the electronic equipment does not need to be carried out. It should be noted that the grounding circuit on the test socket 2 in fig. 1 does not affect the rf sub-circuit of the test socket 2, and the grounding circuit is used to ground the test line when the test line is inserted.
In this embodiment, the detection sub-circuit 1 may have N input terminals for the N rf sub-circuits to access, and different rf sub-circuits are connected to different input terminals. If at least one input end in the N input ends is a high level, the output end of the detection sub-circuit 1 outputs the high level, and the complete machine is in a conduction test state at the moment; if each input end of the N input ends is low level, the output end of the detection sub-circuit 1 outputs low level, and the whole machine is in a coupling test state at the moment.
In this embodiment, the determination logic of the antenna detection circuit is changed, that is, when the electronic device is designed with a multi-channel multi-antenna, it is determined that the electronic device is in the conduction test state as long as more than one radio frequency channel is detected, and the state of the electronic device is not adjusted. The electronic device state is adjusted only if all the vias are in the coupled radiating state. The antenna detection circuit design can simplify the number of the main chip antenna detection ports to only one, thereby simplifying the detection process and improving the occupation problem of the 5G multi-antenna design requirement on the chip detection ports.
Optionally, the detection sub-circuit 1 includes N diodes D and a third resistor R3;
the second ends of the second resistors R2 of the different radio frequency sub-circuits are connected with the anodes of different diodes D in the N diodes D, and the cathodes of the N diodes D are connected with the first end of the third resistor R3;
a first terminal of the third resistor R3 is connected to the level detecting unit, and a second terminal of the third resistor R3 is grounded.
In this embodiment, for better understanding of the above-mentioned setting mode, please refer to fig. 2, and fig. 2 is a structural diagram of an antenna detection circuit according to an embodiment of the present invention. As shown in fig. 2, the second terminals of the second resistors R2 of different rf sub-circuits are connected to the anodes of different diodes D of the N diodes D, and the cathodes of the N diodes D are connected to the first terminal of the third resistor R3; a first terminal of the third resistor R3 is connected to the level detector, and a second terminal of the third resistor R3 is grounded.
In this embodiment, it can be understood that a diode is added to each antenna detection output end to eliminate the mutual influence between the antenna output ends, and then the signals are collected to one main chip detection port (level detection IC output end), where the level detected by the main chip detection port is the level of the first end of the third resistor R3. The upper rf sub-circuit may be the rf sub-circuit 01, and the lower rf sub-circuit may be the rf sub-circuit 02, and the operation logic is as follows:
firstly, the radio frequency sub-circuit 01 and the radio frequency sub-circuit 02 are in a conduction test state, the cathode of the diode D of the radio frequency sub-circuit 01 and the cathode of the diode D of the radio frequency sub-circuit 02 both output high levels, the level detection IC outputs the high levels, and the whole machine is judged to be in the conduction test state.
And secondly, only the radio frequency sub-circuit 01 is in a conduction test state, the cathode of the diode D of the radio frequency sub-circuit 01 outputs a high level, the cathode of the diode D of the radio frequency sub-circuit 02 outputs a low level, and the cathode of the diode D of the radio frequency sub-circuit 01 outputs the high level and cannot be pulled down by the cathode of the diode D of the radio frequency sub-circuit 02 due to the reverse cut-off of the diode, namely the level detection IC still outputs the high level, so that the whole machine is judged to be in the conduction test state.
And thirdly, only the radio frequency sub-circuit 02 is in a conduction test state, the cathode of the diode D of the radio frequency sub-circuit 01 outputs a low level, the cathode of the diode D of the radio frequency sub-circuit 02 outputs a high level, and the high level output by the cathode of the diode D of the radio frequency sub-circuit 02 cannot be pulled down by the low level output by the cathode of the diode D of the radio frequency sub-circuit 01 due to the reverse cut-off of the diode, namely the level detection IC still outputs a high level, and the whole machine is judged to be in the conduction test state.
Fourthly, the radio frequency sub-circuit 01 and the radio frequency sub-circuit 02 are in a coupling test state, the cathode of the diode D of the radio frequency sub-circuit 01 and the cathode of the diode D of the radio frequency sub-circuit 02 both output low levels, the level detection IC outputs low levels, and the whole machine is judged to be in a coupling radiation test state.
Therefore, the design of the antenna detection circuit can simplify the number of the main chip antenna detection ports to only one, thereby simplifying the detection process and improving the occupation problem of the 5G multi-antenna design requirement on the chip detection ports.
Optionally, the detection sub-circuit 1 includes an or gate sub-circuit;
the second end of the second resistor R2 of the different rf sub-circuit is connected to a different input terminal of the or gate sub-circuit, and the output terminal of the or gate sub-circuit is connected to the level detection unit.
In this embodiment, please refer to fig. 3 for better understanding of the above-mentioned arrangement, and fig. 3 is a structural diagram of an antenna detection circuit according to an embodiment of the present invention. As shown in fig. 3, the detection sub-circuit 1 includes an or gate sub-circuit; the second end of the second resistor R2 of the different rf sub-circuit is connected to a different input terminal of the or gate sub-circuit, and the output terminal of the or gate sub-circuit is connected to the level detection unit. The logic judgment of the antenna detection circuit can be changed by only connecting the or gate logic circuit (or gate subcircuit) to each antenna level detection output end, so that the purpose of simplifying the chip detection port is achieved. The upper rf sub-circuit may be the rf sub-circuit 01, and the lower rf sub-circuit may be the rf sub-circuit 02, and the operation logic is as follows:
first, the radio frequency sub-circuit 01 and the radio frequency sub-circuit 02 are in a conduction test state, the second end of the second resistor R2 of the radio frequency sub-circuit 01 and the second end of the second resistor R2 of the radio frequency sub-circuit 02 both output a high level, or the output end of the gate sub-circuit outputs a high level, and the whole machine is judged to be in the conduction test state.
And secondly, only the radio frequency sub-circuit 01 is in a conduction test state, the second end of a second resistor R2 of the radio frequency sub-circuit 01 outputs high level, the second end of a second resistor R2 of the radio frequency sub-circuit 02 outputs low level, or the output end of a gate sub-circuit still outputs high level, and the whole machine is judged to be in the conduction test state.
And thirdly, only the radio frequency sub-circuit 02 is in a conduction test state, the second end of the second resistor R2 of the radio frequency sub-circuit 02 outputs high level, the second end of the second resistor R2 of the radio frequency sub-circuit 01 outputs low level, or the output end of the gate sub-circuit still outputs high level, and the whole machine is judged to be in the conduction test state.
Fourthly, the radio frequency sub-circuit 01 and the radio frequency sub-circuit 02 are in a coupling test state, the second end of the second resistor R2 of the radio frequency sub-circuit 01 and the second end of the second resistor R2 of the radio frequency sub-circuit 02 both output low levels, or the output end of the gate sub-circuit outputs low levels, and the whole machine is judged to be in the coupling test state.
Therefore, the design of the antenna detection circuit can simplify the number of the main chip antenna detection ports to only one, thereby simplifying the detection process and improving the occupation problem of the 5G multi-antenna design requirement on the chip detection ports.
Optionally, when the test socket is not inserted with a test wire, the first end and the second end of the test socket are conducted; and under the condition that the test socket is inserted with a test wire, the first end and the second end of the test socket are disconnected.
In this embodiment, when the test socket is not inserted with a test wire, the first end and the second end of the test socket are electrically connected; when the test socket is inserted with a test wire, the first end and the second end of the test socket are disconnected. Thereby facilitating testing using the test line.
The utility model discloses antenna detection circuit, including N radio frequency sub circuit and detection sub circuit 1, N is for being greater than 1 positive integer, every radio frequency sub circuit all includes test socket 2, first resistance R1, second resistance R2, first inductance L1 and second inductance L2; the test socket 2 is used for placing a test wire connected with the antenna 3 to be tested; a first end of the first inductor L1 is connected with a power supply through the first resistor R1, and a second end of the first inductor L1 is connected with a first end of the test socket 2; a first end of the second resistor R2 is connected with a first end of the first inductor L1; the first end of the second inductor L2 is connected with the second end of the test socket 2, and the second end of the second inductor L2 is grounded; the second end of the test seat 2 is also connected with a radio frequency conducting end; the second ends of the second resistors R2 of different rf sub-circuits are respectively connected to different input ends of the detection sub-circuit 1, and the output end of the detection sub-circuit 1 is connected to the level detection unit. Therefore, only one main chip antenna detection port is required, so that the detection process can be simplified, and the problem of occupation of the chip detection port by the 5G multi-antenna design requirement can be solved.
The embodiment of the utility model provides a still provide an electronic equipment, including above-mentioned antenna detection circuitry.
In this embodiment, the electronic Device may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (5)
1. An antenna detection circuit is characterized by comprising N radio frequency sub-circuits and detection sub-circuits, wherein N is a positive integer greater than 1, and each radio frequency sub-circuit comprises a test seat, a first resistor, a second resistor, a first inductor and a second inductor;
the test socket is used for placing a test wire connected with the antenna to be tested;
the first end of the first inductor is connected with a power supply through the first resistor, and the second end of the first inductor is connected with the first end of the test socket;
the first end of the second resistor is connected with the first end of the first inductor;
the first end of the second inductor is connected with the second end of the test socket, and the second end of the second inductor is grounded; the second end of the test seat is also connected with the radio frequency conducting end;
and second ends of second resistors of different radio frequency sub-circuits are respectively connected with different input ends in the detection sub-circuit, and an output end of the detection sub-circuit is connected with the level detection unit.
2. The antenna detection circuit of claim 1, wherein the detection subcircuit comprises N diodes and a third resistor;
the second ends of the second resistors of different radio frequency sub-circuits are connected with the anodes of different diodes in the N diodes, and the cathodes of the N diodes are connected with the first end of the third resistor;
the first end of the third resistor is connected with the level detection unit, and the second end of the third resistor is grounded.
3. The antenna detection circuit of claim 1, wherein the detection subcircuit comprises an or gate subcircuit;
and the second ends of the second resistors of different radio frequency sub-circuits are connected with different input ends in the OR gate sub-circuit, and the output end of the OR gate sub-circuit is connected with the level detection unit.
4. The antenna detection circuit according to any one of claims 1 to 3, wherein the test socket is configured to conduct between the first end and the second end without a test wire inserted therein; and under the condition that the test socket is inserted with a test wire, the first end and the second end of the test socket are disconnected.
5. An electronic device characterized by comprising the antenna detection circuit of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774093.8U CN211453789U (en) | 2019-10-21 | 2019-10-21 | Antenna detection circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774093.8U CN211453789U (en) | 2019-10-21 | 2019-10-21 | Antenna detection circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211453789U true CN211453789U (en) | 2020-09-08 |
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| CN201921774093.8U Active CN211453789U (en) | 2019-10-21 | 2019-10-21 | Antenna detection circuit and electronic equipment |
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| CN (1) | CN211453789U (en) |
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