Radio frequency device and electronic equipment
By integrating coupling components on the substrate of the RF signal line, the problem of excessive RF front-end devices is solved, achieving higher space utilization and effective power control.
Patent Information
- Application Number
- CN202520144391.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing technologies place too many radio frequency (RF) front-end components in electronic devices, resulting in low space utilization.
The coupler is integrated on the substrate where the RF signal line is located, replacing the separately set coupler device, and power control and feedback are performed through electromagnetic coupling.
It saves on coupler components, improves space utilization, and enables effective power control and feedback.
Smart Images
Figure CN223816158U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of radio frequency technology, and particularly relates to a radio frequency device and an electronic device. BACKGROUND
[0002] At present, in the design of electronic devices such as mobile phones and tablets, a coupler device is usually placed in the radio frequency front end when the radio frequency front end is powered, and the output power is fed back to the transceiver to adjust the transmission power in real time when the radio frequency works.
[0003] However, the setting of the coupler increases the devices of the radio frequency front end. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a radio frequency device and an electronic device, which can save the device setting of the radio frequency front end.
[0005] In a first aspect, an embodiment of the present application provides a radio frequency device, which comprises:
[0006] a substrate, one side of the substrate being provided with a radio frequency signal line;
[0007] a coupling member, disposed on the substrate and located at least one side of the radio frequency signal line, the coupling member being electromagnetically coupled with the radio frequency signal line.
[0008] Optionally, the coupling member comprises:
[0009] a first microstrip line, located at the same side of the substrate as the radio frequency signal line and at one side of the radio frequency signal line.
[0010] Optionally, the coupling member further comprises:
[0011] a second microstrip line, located at the same side of the substrate as the radio frequency signal line and oppositely disposed with the first microstrip line at the other side of the radio frequency signal line.
[0012] Optionally, the second microstrip line is connected with the first microstrip line through a via hole and is isolated from the radio frequency signal line.
[0013] Optionally, the width of the second microstrip line is equal to the width of the first microstrip line, and the width of the first microstrip line is greater than the width of the radio frequency signal line.
[0014] Optionally, a first distance between the first microstrip line and the radio frequency signal line is less than the width of the radio frequency signal line; and / or
[0015] a second distance between the second microstrip line and the radio frequency signal line is less than the width of the radio frequency signal line.
[0016] Optionally, the first microstrip line comprises a plurality of first microstrip segments, the plurality of first microstrip segments are arranged at intervals along the length direction of the radio frequency signal line, and the plurality of first microstrip segments are connected in sequence.
[0017] Optionally, the second microstrip line comprises a plurality of second microstrip segments, the plurality of second microstrip segments are arranged at intervals along the length direction of the radio frequency signal line, and the plurality of second microstrip segments are connected in sequence.
[0018] Optionally, at least one of the first microstrip segments is arranged correspondingly to one of the second microstrip segments.
[0019] In a second aspect, the embodiments of the present application further provide an electronic device comprising the radio frequency device as any of the above.
[0020] In the radio frequency device and the electronic device of the embodiments of the present application, the coupling member is integrated on the substrate where the radio frequency signal line is located, and the coupling member is used to replace the separately arranged coupler device to couple the radio frequency signal line, which is used as the basis or feedback to realize the power control of the radio frequency front end, so that the coupler device can be saved and the space utilization can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0022] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.
[0023] Figure 1 The first structure schematic diagram of the radio frequency device provided by the embodiments of the present application.
[0024] Figure 2 The second structure schematic diagram of the radio frequency device provided by the embodiments of the present application.
[0025] Figure 3 The third structure schematic diagram of the radio frequency device provided by the embodiments of the present application.
[0026] Figure 4 The fourth structure schematic diagram of the radio frequency device provided by the embodiments of the present application. DETAILED DESCRIPTION
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] A wireless communication system generally consists of four parts: antenna, radio frequency front-end, radio frequency transceiver module, and baseband signal processor. The radio frequency front-end is the basic component that converts digital signals into wireless radio frequency signals and is also the core component of the wireless communication system.
[0029] Electronic devices typically incorporate wireless communication systems. Currently, in the design of electronic devices such as mobile phones and tablets, power control in the radio frequency (RF) front-end usually involves placing a coupling device at the RF front-end. This coupling output power is fed back to the transceiver to adjust the transmit power in real time. However, the inclusion of a coupler increases the number of components in the RF front-end.
[0030] Based on this, in order to reduce the number of devices in the radio frequency front end, this application provides a radio frequency device and an electronic device, which will be described below with reference to the accompanying drawings.
[0031] Please see Figure 1 As shown, Figure 1 This is a schematic diagram of a first structure of a radio frequency (RF) device provided in an embodiment of this application. This application provides an RF device 100, which is used in electronic devices such as mobile phones and tablets that can perform communication. The RF device 100 includes a substrate 110, an RF signal line 120, and a coupling element 130.
[0032] The substrate 110 can also be understood as an RF circuit board, on which electrical components are disposed to facilitate circuit connection.
[0033] The radio frequency (RF) signal line 120 is used to transmit RF signals and is disposed on one side of the substrate 110. During fabrication, the RF signal line 120 can be obtained by sculpting the shape of metal lines on the substrate 110. Alternatively, the RF signal line 120 can be disposed on the substrate 110 by methods such as soldering. The above description of the fabrication method of the RF signal line 120 is illustrative and should not be construed as a limitation on the fabrication method of the RF signal line 120.
[0034] The coupling member 130 is disposed on the substrate 110 and located on at least one side of the radio frequency signal line 120. The coupling member 130 is used for electromagnetic coupling with the radio frequency signal line 120.
[0035] It should be noted that the radio frequency signal line 120 is used for transmitting radio frequency signals in the radio frequency front end. Since the radio frequency signals will couple electromagnetic waves around during the transmission, accordingly, the coupling member 130 can be arranged near the radio frequency signal line 120 to absorb the electromagnetic waves or energy coupled by the radio frequency signal line 120, which serves as the feedback basis for the power control of the radio frequency front end. For example, the electromagnetic waves coupled by the coupling member 130 can be signal-processed, such as magnetoelectric conversion, to reflect the transmission power of the radio frequency signal line 120 in the form of voltage or current, thereby serving as feedback for the power control of the radio frequency front end. Of course, the coupling member 130 is not limited to serving as the basis for the power control of the radio frequency front end, but can also be used for other control schemes according to electromagnetic waves, which will not be described here.
[0036] In the radio frequency device 100 provided by the embodiment of the present application, the coupling member 130 is integrated on the substrate 110 where the radio frequency signal line 120 is located, instead of a separately arranged coupler device for coupling the radio frequency signal line 120, which serves as the basis or feedback for the power control of the radio frequency front end, thereby saving the coupler device and improving the space utilization.
[0037] The coupling member 130 can be arranged on the substrate 110 in the following manner: the coupling member 130 can be obtained by shaping the metal line on the substrate 110. Of course, the coupling member 130 can also be arranged on the substrate 110 by welding, and the above-mentioned manufacturing method of the coupling member 130 is only an example and should not be construed as a limitation on the manufacturing method of the coupling member 130. It can be understood that the coupling member 130 is electromagnetically coupled with the radio frequency signal line 120, and therefore the material of the coupling member 130 can be copper metal.
[0038] Please continue to refer to Figure 1 For example, the coupling member 130 includes a first microstrip line 131, which is located on the same side of the substrate 110 as the radio frequency signal line 120 and on one side of the radio frequency signal line 120. Arranging the first microstrip line 131 on the same plane as the radio frequency signal line 120 can improve the energy absorbed by the first microstrip line 131.
[0039] The material of the first microstrip line 131 is copper metal. The width of the first microstrip line 131 is greater than the width of the radio frequency signal line 120, such as the width of the first microstrip line 131 can be set to be greater than twice the width of the radio frequency signal line 120, so that the first microstrip line 131 covers a wider area and can absorb more energy coupled by the radio frequency signal line 120. In addition, the first distance between the first microstrip line 131 and the radio frequency signal line 120 is less than the width of the radio frequency signal line 120, that is, the first microstrip line 131 is as close to the radio frequency signal line 120 as possible, which can also improve the energy absorbed by the first microstrip line 131.
[0040] The length of the first microstrip line 131 is not limited and can be set according to actual control needs.
[0041] Please see Figure 2 As shown, Figure 2 This is a second structural schematic diagram of the radio frequency device provided in an embodiment of this application. In some embodiments, the first microstrip line 131 may include a plurality of first microstrip segments 1310, which are arranged at intervals along the length direction of the radio frequency signal line 120 and are connected sequentially. This can reduce the amount of microstrip line material used and save on the manufacturing cost of the first microstrip line 131.
[0042] Microstrip lines are microwave transmission lines consisting of a single conductor strip supported on a dielectric substrate. They are suitable for fabricating planar transmission lines for microwave integrated circuits. Compared to metallic waveguides, they are smaller, lighter, have wider operating bandwidth, higher reliability, and lower manufacturing costs. Microstrip lines are typically strip-shaped, with their length much greater than their width.
[0043] It should be noted that the coupling element 130 in this embodiment may only include the first microstrip line 131, which can absorb the coupled electromagnetic waves of the radio frequency signal line 120. In some embodiments, the first microstrip line 131 may also be disposed opposite to the radio frequency signal line 120, thereby reducing the area of the substrate 110 and thus reducing the cost.
[0044] Of course, in order to absorb more energy coupled by the RF signal line 120, two microstrip lines can also be set.
[0045] Please see Figure 3 As shown, Figure 3 This is a schematic diagram of a third structure of the radio frequency device provided in an embodiment of this application. Exemplarily, the coupling element 130 may further include a first microstrip line 131 and a second microstrip line 132. The first microstrip line 131 is located on the same side of the substrate 110 as the radio frequency signal line 120, and is located on one side of the radio frequency signal line 120. The second microstrip line 132 is located on the same side of the substrate 110 as the radio frequency signal line 120, and is disposed opposite to the first microstrip line 131 on the other side of the radio frequency signal line 120. By providing microstrip lines on both sides of the radio frequency signal line 120, the energy coupled between the two sides of the radio frequency signal line 120 can be absorbed, thereby absorbing more energy.
[0046] The second microstrip line 132 is connected with the first microstrip line 131 through the via hole and is isolated from the radio frequency signal line 120. For example, the via hole is arranged at the corresponding position on the first microstrip line 131 and the second microstrip line 132, the connecting line is filled in the via hole, and the connection is realized by bypassing the radio frequency signal line 120, for example, the connecting line can be arranged on the other side of the substrate 110. In this way, the connection of the first microstrip line 131 and the second microstrip line 132 can be realized, and the interference with the transmission signal of the radio frequency signal line 120 can be reduced.
[0047] For example, the width of the second microstrip line 132 is equal to the width of the first microstrip line 131, and the width of the first microstrip line 131 is greater than the width of the radio frequency signal line 120. For example, the width of the first microstrip line 131 and the width of the second microstrip line 132 can be set to be greater than twice the width of the radio frequency signal line 120, so that the first microstrip line 131 and the second microstrip line 132 cover a wider area and can absorb more energy coupled by the radio frequency signal line 120. In addition, the first distance between the first microstrip line 131 and the radio frequency signal line 120 is less than the width of the radio frequency signal line 120, and / or the second distance between the second microstrip line 132 and the radio frequency signal line 120 is less than the width of the radio frequency signal line 120, that is, the first microstrip line 131 and the second microstrip line 132 are as close to the radio frequency signal line 120 as possible, which can also improve the energy absorbed by the first microstrip line 131 and the second microstrip line 132.
[0048] For example, the length of the first microstrip line 131 and the length of the second microstrip line 132 are not limited, and can be set according to actual control needs.
[0049] Please refer to Figure 4 , Figure 4 The fourth structure diagram of the radio frequency device provided by the embodiment of the application is shown. For example, the first microstrip line 131 can include a plurality of first microstrip segments 1310, the plurality of first microstrip segments 1310 are arranged at intervals along the length direction of the radio frequency signal line 120, and the plurality of first microstrip segments 1310 are connected in sequence. In this way, the use of microstrip line material can be reduced, and the manufacturing cost of the first microstrip line 131 can be saved.
[0050] For example, the second microstrip line 132 can include a plurality of second microstrip segments 1320, the plurality of second microstrip segments 1320 are arranged at intervals along the length direction of the radio frequency signal line 120, and the plurality of second microstrip segments 1320 are connected in sequence. In this way, the use of microstrip line material can be reduced, and the manufacturing cost of the second microstrip line 132 can be saved.
[0051] It should be noted that the first microstrip line 131 and the second microstrip line 132 can be continuous strips, can be shapes including a plurality of microstrip segments, or one of the first microstrip line 131 and the second microstrip line 132 can be a continuous strip and the other can be a shape including a plurality of microstrip segments. Embodiments of the present application are described by taking the shapes of the first microstrip line 131 and the second microstrip line 132 including a plurality of microstrip segments as an example, and should not be construed as a limitation on the first microstrip line 131 and the second microstrip line 132.
[0052] In the case where the first microstrip line 131 and the second microstrip line 132 are shapes including a plurality of microstrip segments, at least one first microstrip segment 1310 is arranged in correspondence with one of the second microstrip segments 1320, thereby improving the positioning accuracy and convenience of the two.
[0053] In order to transmit the electromagnetic waves or energy absorbed by the first microstrip line 131 and / or the second microstrip line 132, the coupling member 130 of the embodiments of the present application can further include a connection pad 133 arranged on the substrate 110 and connected to the first microstrip line 131 and the second microstrip line 132. The connection pad 133 is used to connect an analysis and control device to transmit the electromagnetic waves coupled by the first microstrip line 131 and the second microstrip line 132.
[0054] In the embodiments of the present application, the first microstrip line 131 and the second microstrip line 132 can be symmetrically arranged with respect to the radio frequency signal line 120, which can simplify the positioning mode of the first microstrip line 131 and the second microstrip line 132 and improve the accuracy and convenience of production.
[0055] In some embodiments, the first microstrip line and the second microstrip line can also be arranged in a staggered or partially overlapping manner, thereby providing space for the arrangement of other devices and improving space utilization.
[0056] In some embodiments, the first microstrip line and the second microstrip line can be arranged in different planes, which can facilitate the arrangement of other devices and also reduce the area of the substrate. At this time, the segmented form of the first microstrip line and the second microstrip line can be selected as needed, which is not specifically limited here.
[0057] In some embodiments, the coupling member can include two first microstrip lines and one second microstrip line, or one first microstrip line and two second microstrip lines. The two first microstrip lines or the two second microstrip lines are arranged in different planes. Of course, the coupling member can also include two first microstrip lines and two second microstrip lines. The increase in the number of microstrip lines can help to absorb more energy, i.e., make the coupled energy more accurate.
[0058] In the radio frequency device 100 provided by the embodiments of the present application, the coupling member 130 is integrated on the substrate 110 where the radio frequency signal line 120 is located, and is used to replace the separately arranged coupler device to couple the radio frequency signal line 120, thereby saving the coupler device and improving the space utilization as the basis or feedback for realizing the power control of the radio frequency front end.
[0059] The embodiments of the present application also provide an electronic device (not shown in the figure), which is a device capable of communication, such as a mobile phone or a tablet. The electronic device comprises the radio frequency device described above, and the specific structure of the radio frequency device is referred to the above embodiments. Since the electronic device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and thus the detailed description is not repeated here.
[0060] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.
[0061] In the description of the present application, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.
[0062] The radio frequency device and the electronic device provided by the embodiments of the present application are described in detail above, and the specific examples are applied to describe the principles and implementation modes of the present application. The above embodiment descriptions are only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, the specific implementation modes and application ranges can be changed according to the idea of the present application, and the content of the specification should not be understood as the limitation of the present application.
Claims
1. A radio frequency device, characterized by, The radio frequency device comprises: a substrate, one side of the substrate being provided with a radio frequency signal line; a coupling element disposed on the substrate and located on at least one side of the radio frequency signal line, the coupling element being electromagnetically coupled with the radio frequency signal line.
2. The radio-frequency device according to claim 1, characterized in that The coupling element comprises: a first microstrip line, which is located on the same side of the substrate as the radio frequency signal line and on one side of the radio frequency signal line.
3. The radio-frequency device according to claim 2, characterized in that The coupling element further comprises: a second microstrip line, which is located on the same side of the substrate as the radio frequency signal line and is disposed on the other side of the radio frequency signal line opposite the first microstrip line.
4. The radio-frequency device according to claim 3, characterized in that The second microstrip line is connected to the first microstrip line through a via hole and is isolated from the radio frequency signal line.
5. The radio-frequency device according to claim 3, characterized in that The width of the second microstrip line is equal to the width of the first microstrip line, and the width of the first microstrip line is greater than the width of the radio frequency signal line.
6. The radio-frequency device according to claim 3, characterized in that The first distance between the first microstrip line and the radio frequency signal line is less than the width of the radio frequency signal line; and / or The second distance between the second microstrip line and the radio frequency signal line is less than the width of the radio frequency signal line.
7. The radio-frequency device according to claim 3, characterized in that The first microstrip line comprises a plurality of first microstrip segments, which are arranged at intervals along the length direction of the radio frequency signal line and are connected in sequence.
8. The radio-frequency device according to claim 7, characterized in that The second microstrip line comprises a plurality of second microstrip segments, which are arranged at intervals along the length direction of the radio frequency signal line and are connected in sequence.
9. The radio-frequency device according to claim 8, characterized in that At least one of the first microstrip segments is correspondingly disposed with one of the second microstrip segments.
10. An electronic device, comprising: The radio frequency device comprises any one of claims 1 to 9.