Antenna power debugging system of mobile terminal
By using a unidirectional coupler instead of a bidirectional coupler in the mobile terminal, and combining it with an RF chip module and a switch module, hardware cost savings and antenna performance optimization for the ACL function are achieved.
Patent Information
- Application Number
- CN202423232506.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional hardware devices for implementing ACL functionality require the use of bidirectional couplers, which increases the hardware cost of mobile terminals.
A unidirectional coupler is used instead of a bidirectional coupler, and combined with an RF chip module, a gating switch module, and an antenna module, the ACL function is realized through the cooperation of the switch and the unidirectional coupler.
This significantly reduced hardware costs while achieving optimal transmit power tuning for antenna performance.
Smart Images
Figure CN223652266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wireless communication technical field more particularly to a kind of antenna power debugging system of mobile terminal. BACKGROUND
[0002] High-pass platform ACL function (advanced closed loop, advanced closed loop) refers to: according to antenna impedance measurement result, dynamic adjustment antenna tuner code.This technology can be used according to the scene of user, so that mobile terminal calls different antenna code when working, to ensure optimal antenna power emission, that is, to ensure that the performance of antenna is best when user uses mobile terminal.
[0003] At present, the hardware device for realizing ACL function needs to use bidirectional coupler, but the design of bidirectional coupler will increase the hardware cost of mobile terminal. Therefore, a cost-saving scheme for realizing ACL function is needed. SUMMARY
[0004] The antenna power debugging system of mobile terminal is provided in the embodiment of the present application, which uses unidirectional coupler instead of bidirectional coupler to save cost, and comprises:
[0005] Radio frequency chip module;
[0006] Gate switch module, which is connected with the radio frequency chip module;
[0007] Radio frequency transceiver module, which is connected with the gate switch module;
[0008] First antenna module, which is connected with the radio frequency transceiver module;The first antenna module comprises first antenna switch, which is connected with at least one unidirectional coupler, and each unidirectional coupler corresponds to one antenna and one antenna tuner.
[0009] Second antenna module, which is connected with the gate switch module;The second antenna module comprises second antenna switch, which is connected with at least one unidirectional coupler, and each unidirectional coupler corresponds to one antenna and one antenna tuner.
[0010] Further, the radio frequency chip module comprises control debugging unit for calling antenna code.
[0011] Further, the gate switch module comprises first gate switch and second gate switch connected with each other.
[0012] Furthermore, the first gating switch is connected to the radio frequency transceiver module, and the second gating switch is connected to the second antenna switch.
[0013] Furthermore, both the first gating switch and the second gating switch are single-pole double-throw switches.
[0014] Furthermore, the first antenna switch is connected to the radio frequency transceiver module, the first unidirectional coupler, and the second unidirectional coupler, respectively. The first unidirectional coupler is connected to the first antenna and the first antenna tuner, respectively. The second unidirectional coupler is connected to the second antenna and the second antenna tuner, respectively.
[0015] Furthermore, the second antenna switch is connected to the second gating switch, the third unidirectional coupler, and the fourth unidirectional coupler, respectively. The third unidirectional coupler is connected to the third antenna and the third antenna tuner, respectively. The fourth unidirectional coupler is connected to the fourth antenna and the fourth antenna tuner, respectively.
[0016] Furthermore, the first antenna switch is connected to the first resistor, and the second antenna switch is connected to the second resistor.
[0017] Furthermore, the first antenna switch is a double-pole double-throw switch.
[0018] Furthermore, the second antenna switch is a double-pole double-throw switch.
[0019] In the embodiments described in this specification, the ACL function is implemented by the cooperation of a switch and a unidirectional coupler, which greatly saves hardware costs compared with the existing bidirectional coupler solution. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of an antenna power adjustment system for a mobile terminal provided in an embodiment of this specification.
[0021] Figure 2 for Figure 1 A schematic diagram of the connection of each switch contact. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this specification clearer, the technical solutions of this specification will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of them. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification.
[0023] In the embodiments of this specification, the mobile terminal can be an electronic device such as a smartphone, tablet computer, or CPE. The antenna power adjustment system for a mobile terminal provided in the embodiments of this specification can be applied to application scenarios such as GSM, WCDMA, LTE, NR, CDMA, and TD-SCDMA.
[0024] Please see Figure 1 This document provides a schematic diagram of the structure of an antenna power tuning system for a mobile terminal, as illustrated in an embodiment of this specification. The system includes an RF chip module 10, a gating switch module 20, an RF transceiver module 30, a first antenna module 40, and a second antenna module 50. The RF chip module 10 is connected to the gating switch module 20, which is connected to both the RF transceiver module 30 and the second antenna module 50. The RF transceiver module 30 is also connected to the first antenna module 40.
[0025] In one or more embodiments of this specification, the radio frequency chip module 10 includes a control and debugging unit 11, which integrates existing software (e.g., VSWR status software) to enable the function of calling antenna codes.
[0026] In one or more embodiments of this specification, the gating switch module 20 includes a first gating switch 21 and a second gating switch 22 connected to each other. The moving contact of the first gating switch 21 is connected to the radio frequency transceiver module 30, and the moving contact of the second gating switch 22 is connected to the second antenna module 50. It should be understood that, in order to minimize costs, both the first gating switch 21 and the second gating switch 22 are single-pole double-throw switches.
[0027] In one or more embodiments of this specification, the first antenna module 40 includes a first antenna switch 41, which is connected to the radio frequency transceiver module 30, a first unidirectional coupler 42, and a second unidirectional coupler 43. The first unidirectional coupler 42 is connected to the first antenna 44 and the first antenna tuner 45, and the second unidirectional coupler 43 is connected to the second antenna 46 and the second antenna tuner 47.
[0028] In one or more embodiments of this specification, the first antenna switch 41 is also connected to the first resistor 48. It should be understood that, in order to minimize cost, the first antenna switch 41 is a double-pole double-throw switch.
[0029] In one or more embodiments of this specification, the second antenna module 50 includes a second antenna switch 51, which is connected to a second gating switch 22, a third unidirectional coupler 52, and a fourth unidirectional coupler 53. The third unidirectional coupler 52 is connected to a third antenna 54 and a third antenna tuner 55, and the fourth unidirectional coupler 53 is connected to a fourth antenna 56 and a fourth antenna tuner 57.
[0030] In one or more embodiments of this specification, the second wire switch 51 is also connected to the second resistor 58. It should be understood that, to minimize cost, the second wire switch 51 is a double-pole double-throw switch.
[0031] Please see Figure 2 When the first gating switch 21 and the second gating switch 22 are single-pole double-throw switches, and the first antenna switch 41 and the second antenna switch 51 are double-pole double-throw switches, the contact a1 of the first gating switch 21 is connected to the RF chip module 10, the contact b1 is connected to the RF transceiver module 30, the contact c1 is connected to the contact a2 of the second gating switch 22, and the contact c2 of the second gating switch 22 is connected to the contact d2 of the second antenna switch 51; the contact d1 of the first antenna switch 41 is connected to the RF transceiver module 30, the contact e1 is connected to the first resistor 48, the contact f1 is connected to the first unidirectional coupler 42, and the contact g1 is connected to the second unidirectional coupler 43; the contact d2 of the second antenna switch 51 is connected to the contact c2 of the second gating switch 22, the contact e2 is connected to the second resistor 58, the contact f2 is connected to the third unidirectional coupler 52, and the contact g2 is connected to the fourth unidirectional coupler 53.
[0032] When the power of the first antenna 44 needs to be adjusted, contact d1 of the first antenna switch 41 is connected to contact f1, and contact a1 of the first gating switch 21 is connected to contact b1, so that the antenna signal passes sequentially through the first unidirectional coupler 42, the first antenna switch 41, the RF transceiver module 30, and the first gating switch 21 before reaching the RF chip module 10; when the power of the second antenna 46 needs to be adjusted, contact d1 of the first antenna switch 41 is connected to contact g1, and contact a1 of the first gating switch 21 is connected to contact b1, so that the antenna signal passes sequentially through the second unidirectional coupler 43, the first antenna switch 41, the RF transceiver module 30, and the first gating switch 21 before reaching the RF chip module 10; when the power of the third antenna 54 needs to be adjusted, the second Contacts d2 and f2 of antenna switch 51 are connected, contacts a2 and c2 of second selector switch 22 are connected, and contacts a1 and c1 of first selector switch 21 are connected, so that the antenna signal passes sequentially through third unidirectional coupler 52, second antenna switch 51, second selector switch 22, and first selector switch 21 before reaching RF chip module 10. When the power of fourth antenna 56 needs to be adjusted, contacts d2 and g2 of second antenna switch 51 are connected, contacts a2 and c2 of second selector switch 22 are connected, and contacts a1 and c1 of first selector switch 21 are connected, so that the antenna signal passes sequentially through fourth unidirectional coupler 53, second antenna switch 51, second selector switch 22, and first selector switch 21 before reaching RF chip module 10.
[0033] In one or more embodiments of this specification, unidirectional couplers 42, 43, 52, 53 may be replaced by PCB microstrip lines.
[0034] When a unidirectional coupler is replaced by a PCB microstrip line, the cost benefits for a single mobile terminal brought by the existing bidirectional coupler solution and the solution in the embodiment of this specification are as follows:
[0035]
[0036] Therefore, it can be seen that the solutions in the embodiments of this specification can save costs.
[0037] In one or more embodiments of this specification, the working principle of the antenna power tuning system of the mobile terminal described above is as follows: the radio frequency chip module 10 continuously measures the impedance matching of the antenna end through the coupler, and adjusts the code of the antenna tuner according to the status software of VSWR so that the power transmitted from the radio frequency end to the antenna end is optimal, thereby achieving the optimal power transmission of the antenna.
[0038] Specifically, the transmission signals from the first antenna 44 and the second antenna 46 enter the first antenna switch 41 through unidirectional couplers 42 and 43. The first antenna switch 41 switches its internal switches according to the frequency band of network communication, and the signal enters the RF transceiver module 30. After the internal switch of the RF transceiver module 30 is selected, the signal enters the first gating switch 21. The first gating switch 21 switches, and the signal finally enters the RF chip module 10 to realize the detection of the antenna end transmission impedance. According to the VSWR status, the software calls the most suitable antenna code to achieve the best transmission performance of the antenna.
[0039] Similarly, the transmit signals from the third antenna 54 and the fourth antenna 56 enter the second antenna switch 51 through unidirectional couplers 52 and 53. The second antenna switch 51 switches its internal switches according to the frequency band of network communication, and the signal enters the second gating switch 22. After the internal switch of the second gating switch 22 is selected, the signal enters the first gating switch 21. The internal switch of the first gating switch 21 switches, and the signal finally enters the RF chip module 10 to realize the detection of the transmit impedance at the antenna end. According to the status of VSWR, the software calls the most suitable antenna code to achieve the best transmission performance of the antenna.
[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0041] The above description is merely an embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of the claims of this specification.
Claims
1. An antenna power adjustment system for a mobile terminal, characterized in that, include: RF chip module; A gating switch module, wherein the gating switch module is connected to the radio frequency chip module; A radio frequency transceiver module, wherein the radio frequency transceiver module is connected to the gating switch module; A first antenna module is connected to the radio frequency transceiver module; the first antenna module includes a first antenna switch, which is connected to at least one unidirectional coupler, and each unidirectional coupler corresponds to an antenna and an antenna tuner. The second antenna module is connected to the gating switch module; the second antenna module includes a second antenna switch, which is connected to at least one unidirectional coupler, each unidirectional coupler corresponding to an antenna and an antenna tuner.
2. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The radio frequency chip module includes a control and debugging unit for calling antenna code.
3. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The gating switch module includes a first gating switch and a second gating switch connected to each other.
4. The antenna power adjustment system for a mobile terminal according to claim 3, characterized in that, The first gating switch is connected to the radio frequency transceiver module, and the second gating switch is connected to the second antenna switch.
5. The antenna power adjustment system for a mobile terminal according to claim 4, characterized in that, Both the first gating switch and the second gating switch are single-pole double-throw switches.
6. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The first antenna switch is connected to the radio frequency transceiver module, the first unidirectional coupler, and the second unidirectional coupler. The first unidirectional coupler is connected to the first antenna and the first antenna tuner. The second unidirectional coupler is connected to the second antenna and the second antenna tuner.
7. The antenna power adjustment system for a mobile terminal according to claim 3, characterized in that, The second antenna switch is connected to the second gating switch, the third unidirectional coupler, and the fourth unidirectional coupler, respectively. The third unidirectional coupler is connected to the third antenna and the third antenna tuner, respectively. The fourth unidirectional coupler is connected to the fourth antenna and the fourth antenna tuner, respectively.
8. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The first antenna switch is connected to the first resistor, and the second antenna switch is connected to the second resistor.
9. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The first antenna switch is a double-pole double-throw switch.
10. The antenna power adjustment system for a mobile terminal according to claim 1, characterized in that, The second antenna switch is a double-pole double-throw switch.