CN113238101A - Four-in-one feed coupling mobile phone antenna - Google Patents
Four-in-one feed coupling mobile phone antenna Download PDFInfo
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Abstract
The invention belongs to the field of mobile phone antennas, relates to a coupling antenna technology, and particularly relates to a four-in-one feed coupling mobile phone antenna which comprises a processor, wherein the processor is in communication connection with a bi-directional coupler, a directivity detection module, an error analysis module, an antenna efficiency detection module, a maintenance recommendation module, an operation detection module and a storage module; the dual directional coupler comprises a port I, a port II, a port III and a port IV, wherein the port I and the port IV form a pair of main ports, the port I is connected with the output end of the external network analyzer, and the port IV is connected with the input end of the external network analyzer. The invention can be used for analyzing the directional error of the antenna through the arranged error analysis module, calculating to obtain the reflection voltage error value, comparing the radiation voltage error value with the reflection voltage error threshold value, and judging whether the directional error of the antenna meets the requirement.
Description
Technical Field
The invention belongs to the field of mobile phone antennas, relates to a coupling antenna technology, and particularly relates to a four-in-one feed coupling mobile phone antenna.
Background
The mobile phone antenna, namely the equipment used for receiving signals on the mobile phone, the old mobile phone has a convex antenna, and most of the new mobile phones are hidden in the mobile phone body. The antenna is mainly arranged in the mobile phone, and the inside of the mobile phone cannot be seen in appearance.
When the existing mobile phone antenna is used, the existing mobile phone antenna does not have the function of detecting and analyzing the directional error of the antenna, so that the electromagnetic wave radiation capability of the antenna is poor.
Disclosure of Invention
The invention aims to provide a four-in-one feed coupling mobile phone antenna;
the technical problems to be solved by the invention are as follows: how to provide a four-in-one feed coupling mobile phone antenna capable of detecting and analyzing directional errors.
The purpose of the invention can be realized by the following technical scheme:
a four-in-one feed coupling mobile phone antenna comprises a processor, wherein the processor is in communication connection with a dual-directional coupler, a directivity detection module, an error analysis module, an antenna efficiency detection module, a maintenance recommendation module, an operation detection module and a storage module;
the dual directional coupler comprises a first port, a second port, a third port and a fourth port, wherein the first port and the second port form a pair of main ports, the first port and the second port are respectively used for receiving incident power from a transmitter and reflected power of an antenna, the third port and the fourth port form a pair of coupling output ports, the second port is connected with external load equipment, the first port is connected with the output end of an external network analyzer, and the fourth port is connected with the input end of the external network analyzer;
further, the directivity detection module is configured to perform detection analysis on the directivity of the antenna, where the specific detection analysis process includes:
step S1: marking the coupling degree of the double directional coupler as C, and marking the isolation degree of the double directional coupler as I;
step S2: obtaining the directivity of the antenna through a formula D-C-I, obtaining a directivity threshold Dmin through a storage module, and comparing the directivity of the antenna with the directivity threshold:
if D is larger than or equal to Dmin, judging that the directivity of the antenna meets the requirement;
if D < Dmin, judging that the directivity of the antenna does not meet the requirement;
step S3: the processor receives the directivity detection result and then sends the directivity detection result to the storage module for storage.
Further, the error analysis module is configured to analyze a directional error of the antenna, and a specific analysis process includes the following steps:
step P1: marking the output power of a transmitter as Po, marking the reflection power of an antenna as Pr, marking the system impedance as Z and marking the directional power ratio as r;
step P2: by the formula
Obtaining the minimum value Vrmin of the reflected voltage by a formula
Obtaining a maximum value Vrmax of the reflection voltage;
step P3: subtracting the minimum value Vrmin of the reflection voltage from the maximum value Vrmax of the reflection voltage to obtain a reflection voltage error value Vr;
step P4: acquiring a reflection voltage error threshold value through a storage module, marking the reflection voltage error threshold value as Vy, and comparing the reflection voltage error value with the reflection voltage error threshold value:
if Vr is less than or equal to Vy, judging that the directivity error of the antenna meets the requirement;
if Vr > Vy, judging that the directivity error of the antenna does not meet the requirement;
the error analysis module sends the error analysis result to the processor, and the processor receives the error analysis result and then sends the error analysis result to the storage module for storage.
Further, the antenna efficiency detection module is used for analyzing the influence of environmental factors on the conversion efficiency of the antenna, and the specific analysis process includes the following steps:
step Q1: acquiring the minimum value of the air temperature of the antenna using environment, marking the minimum value of the air temperature of the antenna using environment as KWmin, acquiring the minimum value of the air humidity of the antenna using environment, marking the minimum value of the air humidity of the antenna using environment as KSmin, acquiring the minimum value of the magnetic field strength of the antenna using environment, and marking the minimum value of the magnetic field strength of the antenna using environment as CQmin;
step Q2: obtaining the minimum value HJmin of the environmental coefficient by a formula HJmin ═ alpha 1 xKWmin + alpha 2 xKSmin + alpha 3 xCQmin, wherein alpha 1, alpha 2 and alpha 3 are proportional coefficients;
step Q3: acquiring the maximum value of the air temperature of the using environment of the antenna, marking the maximum value of the air temperature of the using environment of the antenna as KWmax, acquiring the maximum value of the air humidity of the using environment of the antenna, marking the maximum value of the air humidity of the using environment of the antenna as KSmax, acquiring the maximum value of the magnetic field strength of the using environment of the antenna, and marking the maximum value of the magnetic field strength of the using environment of the antenna as CQmax;
step Q4: obtaining the maximum value HJmax of the environmental coefficient through the formula HJmax ═ alpha 1 × KWmax + alpha 2 × KSmax + alpha 3 × CQmax;
step Q5: dividing the environment coefficient interval into environment intervals HJi, where i is 1, 2, … …, n, obtaining antenna radiation power and antenna active power in the environment interval HJi, marking the antenna radiation power and the antenna active power in the environment interval HJi as FSi and YGi respectively, and calculating the power factor by using a formula
To obtain an environmentAntenna conversion efficiency XLi within interval HJi;
step Q6: marking the maximum value of the antenna conversion efficiency as standard conversion efficiency, marking an environment interval corresponding to the standard conversion efficiency as a standard environment interval, and sending the standard environment interval to the storage module by the antenna efficiency detection module for storage.
Further, the operation detection module is configured to perform detection analysis on an operation state of the antenna, and a specific detection analysis process includes the following steps:
step W1: obtaining the standard conversion efficiency of the antenna through a storage module, marking the standard conversion efficiency of the antenna as ZXb, and obtaining a conversion efficiency threshold ZXmin of the antenna through a formula ZXmin-gamma 1 × ZXb, wherein gamma 1 is a proportionality coefficient, and gamma 1 is more than or equal to 0.75 and less than or equal to 0.85;
step W2: the method comprises the steps of obtaining the conversion efficiency of an antenna in real time, marking the conversion efficiency of the antenna as ZXs, marking the time constants of L1 and L2 in the time interval of L1-L2, marking the time duration when the conversion efficiency ZXs of the antenna is greater than or equal to the conversion efficiency threshold ZXmin of the antenna as HGs, and marking the time duration when the conversion efficiency ZXs of the antenna is smaller than the conversion efficiency threshold ZXmin of the antenna as BGs;
step W3: by the formula
Obtaining a state coefficient ZTX used by the antenna, wherein gamma 2 is a proportionality coefficient, obtaining a state coefficient threshold used by the antenna through a storage module, marking the state coefficient threshold used by the antenna as ZTmin, and comparing the state coefficient ZTX used by the antenna with the state coefficient threshold ZTmin:
if the ZTX is more than or equal to ZTmin, judging that the using state of the antenna meets the using requirement, and operating the detection module to send a state qualified signal to the processor;
if the ZTX is less than ZTmin, the using state of the antenna is judged not to meet the using requirement, the operation detection module sends a state unqualified signal to the processor, and the processor receives the state unqualified signal and then sends the state unqualified signal to the maintenance recommendation module.
Further, the maintenance recommendation module is used for recommending maintenance workers when the antenna fails to operate, and the specific recommendation process comprises the following steps:
step Z1: acquiring the geographical position of a fault antenna, drawing a circle by taking the geographical position of the fault antenna as a circle center, taking R as a radius and taking R as a set radius value, marking the obtained circular area as a screening area, acquiring the geographical positions of all maintenance workers in the screening area, and marking the linear distance between the geographical position of the maintenance workers and the geographical position of the fault antenna as a path value LJ;
step Z2: marking the three maintenance workers with the minimum path values as the primary maintenance workers, and acquiring the basic information of the primary maintenance workers, wherein the basic information of the primary maintenance workers comprises the names, ages, mobile phone numbers, working years and the number of complaints within half a year of the primary maintenance workers;
step Z3: marking the working age of the primary selection maintainer as GN, marking the number of complaints of the primary selection maintainer within half a year as TC, and obtaining the result through a formula
Obtaining the recommendation coefficients of the primary maintainers, wherein beta 1, beta 2 and beta 3 are all proportionality coefficients, and marking the primary maintainer with the maximum recommendation coefficient as a recommended maintainer;
step Z4: and sending basic information of the recommended repairmen to the processor.
A use method of a four-in-one feed coupling mobile phone antenna specifically comprises the following steps:
the method comprises the following steps: the antenna, the load and the transmitter are connected through the bi-directional coupler, the first port and the second port form a pair of main ports, the first port and the second port are respectively used for receiving incident power from the transmitter and reflected power of the antenna, the third port and the fourth port form a pair of coupling output ports, the second port is connected with external load equipment, the first port is connected with the output end of an external network analyzer, and the fourth port is connected with the input end of the external network analyzer;
step two: acquiring the coupling degree C of the double directional coupler and the isolation degree I of the double directional coupler; obtaining the directivity D of the antenna by subtracting the isolation i from the coupling degree c, obtaining a directivity threshold Dmin through a storage module, comparing the directivity of the antenna with the directivity threshold, and judging the directivity of the antenna according to the comparison result;
step three: the error analysis module is used for analyzing the directional error of the antenna, acquiring the output power Po of the transmitter, the reflection power Pr of the antenna, the system impedance Z and the directional power ratio r, calculating to obtain a reflection voltage minimum value Vrmin and a reflection voltage maximum value Vrmax, subtracting the reflection voltage minimum value Vrmin from the reflection voltage maximum value Vrmax to obtain a reflection voltage error value Vr, acquiring a reflection voltage error threshold Vy through the storage module, comparing the reflection voltage error value with the reflection voltage error threshold, and judging the directional error of the antenna according to the comparison result;
step four: the antenna efficiency detection module is used for analyzing the influence of environmental factors on the conversion efficiency of the antenna, acquiring the minimum value and the maximum value of air temperature, the minimum value and the maximum value of air humidity and the minimum value and the maximum value of magnetic field intensity of an antenna using environment, marking the maximum value of the antenna conversion efficiency as standard conversion efficiency, marking an environment interval corresponding to the standard conversion efficiency as a standard environment interval, and sending the standard environment interval to the storage module for storage by the antenna efficiency detection module;
step five: the operation detection module is used for detecting and analyzing the operation state of the antenna, acquiring a conversion efficiency threshold ZXmin of the antenna, acquiring ZXs the conversion efficiency of the antenna in real time, marking the time length when the antenna conversion efficiency ZXs is greater than or equal to the conversion efficiency threshold ZXmin of the antenna as HGs, and marking the time length when the antenna conversion efficiency ZXs is smaller than the conversion efficiency threshold ZXmin of the antenna as BGs; the state coefficient ZTX used by the antenna is obtained through calculation, the state coefficient ZTX used by the antenna is compared with a state coefficient threshold ZTmin, and the use state of the antenna is judged according to the comparison result.
The invention has the following beneficial effects:
1. the set error analysis module can be used for analyzing the directional error of the antenna, calculating to obtain a reflection voltage error value, comparing the radiation voltage error value with a reflection voltage error threshold value, and judging whether the directional error of the antenna meets the requirement;
2. the directivity of the antenna can be detected through the arranged directivity detection module, the radiation intensity of the directional antenna in each direction is different, the directivity coefficient of the antenna is changed along with the difference of observation points, the direction with the largest radiation electric field and the largest directivity coefficient are detected, and the radiation intensity of the antenna is maximized;
3. the method comprises the steps that the influence of environmental factors on the conversion efficiency of an antenna can be analyzed through an arranged antenna efficiency detection module, the minimum value and the maximum value of air temperature, the minimum value and the maximum value of air humidity and the minimum value and the maximum value of magnetic field intensity of an antenna use environment are obtained, the maximum value of the antenna conversion efficiency is marked as standard conversion efficiency, an environment interval corresponding to the standard conversion efficiency is marked as a standard environment interval, and the standard environment interval is an environment coefficient interval for the antenna to work;
4. the operation state of the antenna can be detected and analyzed through the set operation detection module, the conversion efficiency threshold ZXmin of the antenna is obtained, the conversion efficiency ZXs of the antenna is obtained in real time, the time length of the antenna conversion efficiency ZXs which is greater than or equal to the conversion efficiency threshold ZXmin of the antenna is marked as HGs, and the time length of the antenna conversion efficiency ZXs which is smaller than the conversion efficiency threshold ZXmin of the antenna is marked as BGs; the method comprises the steps of obtaining a state coefficient ZTX used by the antenna through calculation, comparing the state coefficient ZTX used by the antenna with a state coefficient threshold ZTmin, judging the use state of the antenna through the comparison result, and sending a maintenance signal to a processor when the use state of the antenna does not meet the use requirement, so that the antenna can be maintained as soon as possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the drawings without creative efforts.
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a four-in-one feed-coupled mobile phone antenna includes a processor, and the processor is communicatively connected with a dual directional coupler, a directivity detection module, an error analysis module, an antenna efficiency detection module, a maintenance recommendation module, an operation detection module, and a storage module;
the dual directional coupler comprises a first port, a second port, a third port and a fourth port, wherein the first port and the second port form a pair of main ports, the first port and the second port are respectively used for receiving incident power from a transmitter and reflected power of an antenna, the third port and the fourth port form a pair of coupling output ports, the second port is connected with external load equipment, the first port is connected with the output end of an external network analyzer, and the fourth port is connected with the input end of the external network analyzer;
the directivity detection module is used for detecting and analyzing the directivity of the antenna, and the specific detection and analysis process comprises the following steps:
step S1: marking the coupling degree of the double directional coupler as C, and marking the isolation degree of the double directional coupler as I;
step S2: obtaining the directivity of the antenna through a formula D-C-I, obtaining a directivity threshold Dmin through a storage module, and comparing the directivity of the antenna with the directivity threshold:
if D is larger than or equal to Dmin, judging that the directivity of the antenna meets the requirement;
if D < Dmin, judging that the directivity of the antenna does not meet the requirement;
step S3: the processor receives the directivity detection result and then sends the directivity detection result to the storage module for storage.
The error analysis module is used for analyzing the directional error of the antenna, and the specific analysis process comprises the following steps:
step P1: marking the output power of a transmitter as Po, marking the reflection power of an antenna as Pr, marking the system impedance as Z and marking the directional power ratio as r;
step P2: by the formula
Obtaining the minimum value Vrmin of the reflected voltage by a formula
Obtaining a maximum value Vrmax of the reflection voltage;
step P3: subtracting the minimum value Vrmin of the reflection voltage from the maximum value Vrmax of the reflection voltage to obtain a reflection voltage error value Vr;
step P4: acquiring a reflection voltage error threshold value through a storage module, marking the reflection voltage error threshold value as Vy, and comparing the reflection voltage error value with the reflection voltage error threshold value:
if Vr is less than or equal to Vy, judging that the directivity error of the antenna meets the requirement;
if Vr > Vy, judging that the directivity error of the antenna does not meet the requirement;
the error analysis module sends the error analysis result to the processor, and the processor receives the error analysis result and then sends the error analysis result to the storage module for storage.
The antenna efficiency detection module is used for analyzing the influence of environmental factors on the conversion efficiency of the antenna, and the specific analysis process comprises the following steps:
step Q1: acquiring the minimum value of the air temperature of the antenna using environment, marking the minimum value of the air temperature of the antenna using environment as KWmin, acquiring the minimum value of the air humidity of the antenna using environment, marking the minimum value of the air humidity of the antenna using environment as KSmin, acquiring the minimum value of the magnetic field strength of the antenna using environment, and marking the minimum value of the magnetic field strength of the antenna using environment as CQmin;
step Q2: obtaining the minimum value HJmin of the environmental coefficient by a formula HJmin ═ alpha 1 xKWmin + alpha 2 xKSmin + alpha 3 xCQmin, wherein alpha 1, alpha 2 and alpha 3 are proportional coefficients;
step Q3: acquiring the maximum value of the air temperature of the using environment of the antenna, marking the maximum value of the air temperature of the using environment of the antenna as KWmax, acquiring the maximum value of the air humidity of the using environment of the antenna, marking the maximum value of the air humidity of the using environment of the antenna as KSmax, acquiring the maximum value of the magnetic field strength of the using environment of the antenna, and marking the maximum value of the magnetic field strength of the using environment of the antenna as CQmax;
step Q4: obtaining the maximum value HJmax of the environmental coefficient through the formula HJmax ═ alpha 1 × KWmax + alpha 2 × KSmax + alpha 3 × CQmax;
step Q5: dividing the environment coefficient interval into environment intervals HJi, where i is 1, 2, … …, n, obtaining antenna radiation power and antenna active power in the environment interval HJi, marking the antenna radiation power and the antenna active power in the environment interval HJi as FSi and YGi respectively, and calculating the power factor by using a formula
Obtaining an antenna conversion efficiency Xli within an environment interval HJi;
step Q6: marking the maximum value of the antenna conversion efficiency as standard conversion efficiency, marking an environment interval corresponding to the standard conversion efficiency as a standard environment interval, and sending the standard environment interval to the storage module by the antenna efficiency detection module for storage.
The operation detection module is used for detecting and analyzing the operation state of the antenna, and the specific detection and analysis process comprises the following steps:
step W1: obtaining the standard conversion efficiency of the antenna through a storage module, marking the standard conversion efficiency of the antenna as ZXb, and obtaining a conversion efficiency threshold ZXmin of the antenna through a formula ZXmin-gamma 1 × ZXb, wherein gamma 1 is a proportionality coefficient, and gamma 1 is more than or equal to 0.75 and less than or equal to 0.85;
step W2: the method comprises the steps of obtaining the conversion efficiency of an antenna in real time, marking the conversion efficiency of the antenna as ZXs, marking the time constants of L1 and L2 in the time interval of L1-L2, marking the time duration when the conversion efficiency ZXs of the antenna is greater than or equal to the conversion efficiency threshold ZXmin of the antenna as HGs, and marking the time duration when the conversion efficiency ZXs of the antenna is smaller than the conversion efficiency threshold ZXmin of the antenna as BGs;
step W3: by the formula
Obtaining a state coefficient ZTX used by the antenna, wherein gamma 2 is a proportionality coefficient, obtaining a state coefficient threshold used by the antenna through a storage module, marking the state coefficient threshold used by the antenna as ZTmin, and comparing the state coefficient ZTX used by the antenna with the state coefficient threshold ZTmin:
if the ZTX is more than or equal to ZTmin, judging that the using state of the antenna meets the using requirement, and operating the detection module to send a state qualified signal to the processor;
if the ZTX is less than ZTmin, the using state of the antenna is judged not to meet the using requirement, the operation detection module sends a state unqualified signal to the processor, and the processor receives the state unqualified signal and then sends the state unqualified signal to the maintenance recommendation module.
The maintenance recommendation module is used for recommending maintenance workers when the antenna fails to operate, and the specific recommendation process comprises the following steps:
step Z1: acquiring the geographical position of a fault antenna, drawing a circle by taking the geographical position of the fault antenna as a circle center, taking R as a radius and taking R as a set radius value, marking the obtained circular area as a screening area, acquiring the geographical positions of all maintenance workers in the screening area, and marking the linear distance between the geographical position of the maintenance workers and the geographical position of the fault antenna as a path value LJ;
step Z2: marking the three maintenance workers with the minimum path values as the primary maintenance workers, and acquiring the basic information of the primary maintenance workers, wherein the basic information of the primary maintenance workers comprises the names, ages, mobile phone numbers, working years and the number of complaints within half a year of the primary maintenance workers;
step Z3: marking the working age of the primary selection maintainer as GN, marking the number of complaints of the primary selection maintainer within half a year as TC, and obtaining the result through a formula
Obtaining the recommendation coefficients of the primary maintainers, wherein beta 1, beta 2 and beta 3 are all proportionality coefficients, and marking the primary maintainer with the maximum recommendation coefficient as a recommended maintainer;
step Z4: and sending basic information of the recommended repairmen to the processor.
A use method of a four-in-one feed coupling mobile phone antenna specifically comprises the following steps:
the method comprises the following steps: the antenna, the load and the transmitter are connected through the bi-directional coupler, the first port and the second port form a pair of main ports, the first port and the second port are respectively used for receiving incident power from the transmitter and reflected power of the antenna, the third port and the fourth port form a pair of coupling output ports, the second port is connected with external load equipment, the first port is connected with the output end of an external network analyzer, and the fourth port is connected with the input end of the external network analyzer;
step two: acquiring the coupling degree C of the double directional coupler and the isolation degree I of the double directional coupler; obtaining the directivity D of the antenna by subtracting the isolation i from the coupling degree c, obtaining a directivity threshold Dmin through a storage module, comparing the directivity of the antenna with the directivity threshold, and judging the directivity of the antenna according to the comparison result;
step three: the error analysis module is used for analyzing the directional error of the antenna, acquiring the output power Po of the transmitter, the reflection power Pr of the antenna, the system impedance Z and the directional power ratio r, calculating to obtain a reflection voltage minimum value Vrmin and a reflection voltage maximum value Vrmax, subtracting the reflection voltage minimum value Vrmin from the reflection voltage maximum value Vrmax to obtain a reflection voltage error value Vr, acquiring a reflection voltage error threshold Vy through the storage module, comparing the reflection voltage error value with the reflection voltage error threshold, and judging the directional error of the antenna according to the comparison result;
step four: the antenna efficiency detection module is used for analyzing the influence of environmental factors on the conversion efficiency of the antenna, acquiring the minimum value and the maximum value of air temperature, the minimum value and the maximum value of air humidity and the minimum value and the maximum value of magnetic field intensity of an antenna using environment, marking the maximum value of the antenna conversion efficiency as standard conversion efficiency, marking an environment interval corresponding to the standard conversion efficiency as a standard environment interval, and sending the standard environment interval to the storage module for storage by the antenna efficiency detection module;
step five: the operation detection module is used for detecting and analyzing the operation state of the antenna, acquiring a conversion efficiency threshold ZXmin of the antenna, acquiring ZXs the conversion efficiency of the antenna in real time, marking the time length when the antenna conversion efficiency ZXs is greater than or equal to the conversion efficiency threshold ZXmin of the antenna as HGs, and marking the time length when the antenna conversion efficiency ZXs is smaller than the conversion efficiency threshold ZXmin of the antenna as BGs; the state coefficient ZTX used by the antenna is obtained through calculation, the state coefficient ZTX used by the antenna is compared with a state coefficient threshold ZTmin, and the use state of the antenna is judged according to the comparison result.
A four-in-one feed coupling mobile phone antenna obtains the coupling degree C of a double-directional coupler and the isolation degree I of the double-directional coupler; obtaining the directivity D of the antenna by subtracting the isolation i from the coupling degree c, obtaining a directivity threshold Dmin through a storage module, comparing the directivity of the antenna with the directivity threshold, and judging the directivity of the antenna according to the comparison result; the error analysis module is used for analyzing the directional error of the antenna, acquiring the output power Po of the transmitter, the reflection power Pr of the antenna, the system impedance Z and the directional power ratio r, calculating to obtain a reflection voltage minimum value Vrmin and a reflection voltage maximum value Vrmax, subtracting the reflection voltage minimum value Vrmin from the reflection voltage maximum value Vrmax to obtain a reflection voltage error value Vr, acquiring a reflection voltage error threshold Vy through the storage module, comparing the reflection voltage error value with the reflection voltage error threshold, and judging the directional error of the antenna according to the comparison result; the antenna efficiency detection module is used for analyzing the influence of environmental factors on the conversion efficiency of the antenna, acquiring the minimum value and the maximum value of air temperature, the minimum value and the maximum value of air humidity and the minimum value and the maximum value of magnetic field intensity of an antenna using environment, marking the maximum value of the antenna conversion efficiency as standard conversion efficiency, marking an environment interval corresponding to the standard conversion efficiency as a standard environment interval, and sending the standard environment interval to the storage module for storage by the antenna efficiency detection module; the operation detection module is used for detecting and analyzing the operation state of the antenna, acquiring a conversion efficiency threshold ZXmin of the antenna, acquiring ZXs the conversion efficiency of the antenna in real time, marking the time length when the antenna conversion efficiency ZXs is greater than or equal to the conversion efficiency threshold ZXmin of the antenna as HGs, and marking the time length when the antenna conversion efficiency ZXs is smaller than the conversion efficiency threshold ZXmin of the antenna as BGs; the state coefficient ZTX used by the antenna is obtained through calculation, the state coefficient ZTX used by the antenna is compared with a state coefficient threshold ZTmin, and the use state of the antenna is judged according to the comparison result.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
The above formulas are all numerical values obtained by normalization processing, the formula is a formula obtained by acquiring a large amount of data and performing software simulation to obtain the latest real situation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 do not necessarily 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.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A four-in-one feed coupling mobile phone antenna is characterized by comprising a processor, wherein the processor is in communication connection with a dual directional coupler, a directivity detection module, an error analysis module, an antenna efficiency detection module, a maintenance recommendation module, an operation detection module and a storage module;
the error analysis module is used for analyzing the directional error of the antenna, and the specific analysis process comprises the following steps:
step P1: marking the output power of a transmitter as Po, marking the reflection power of an antenna as Pr, marking the system impedance as Z and marking the directional power ratio as r;
step P2: by the formula
Obtaining the minimum value Vrmin of the reflected voltage by a formula
Obtaining a maximum value Vrmax of the reflection voltage;
step P3: subtracting the minimum value Vrmin of the reflection voltage from the maximum value Vrmax of the reflection voltage to obtain a reflection voltage error value Vr;
step P4: acquiring a reflection voltage error threshold value through a storage module, marking the reflection voltage error threshold value as Vy, and comparing the reflection voltage error value with the reflection voltage error threshold value to judge the directional error;
the directivity detection module is used for detecting and analyzing the directivity of the antenna, and the specific detection and analysis process comprises the following steps:
step S1: marking the coupling degree of the double directional coupler as C, and marking the isolation degree of the double directional coupler as I;
step S2: obtaining the directivity of the antenna through a formula D-C-I, obtaining a directivity threshold Dmin through a storage module, and comparing the directivity of the antenna with the directivity threshold:
if D is larger than or equal to Dmin, judging that the directivity of the antenna meets the requirement;
if D < Dmin, judging that the directivity of the antenna does not meet the requirement;
step S3: the processor receives the directivity detection result and then sends the directivity detection result to the storage module for storage.
2. The antenna of claim 1, wherein the dual directional coupler comprises a port one, a port two, a port three and a port four, the port one and the port two form a pair of main ports, the port one and the port two are respectively used for receiving incident power from a transmitter and reflected power of the antenna, the port three and the port four form a pair of coupled output ports, the port two is connected with an external load device, the port one is connected with an output end of an external network analyzer, and the port four is connected with an input end of the external network analyzer.
3. The four-in-one feed-coupled handset antenna according to claim 1, wherein the comparing of the reflected voltage error value to the reflected voltage error threshold comprises:
if Vr is less than or equal to Vy, judging that the directivity error of the antenna meets the requirement;
if Vr > Vy, judging that the directivity error of the antenna does not meet the requirement;
the error analysis module sends the error analysis result to the processor, and the processor receives the error analysis result and then sends the error analysis result to the storage module for storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110508861.0A CN113238101A (en) | 2021-05-11 | 2021-05-11 | Four-in-one feed coupling mobile phone antenna |
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