Antenna assembly and electronic equipment

Abstract

The invention relates to an antenna assembly and electronic equipment, the antenna assembly comprises an antenna and an amplifier module, the amplifier module is used for adjusting the impedance of the antenna to enable the impedance of the antenna to be matched with preset impedance, and one end of the amplifier module is connected with the antenna. By arranging the amplifier module and adjusting the impedance of the antenna, the impedance of the antenna is matched with the preset impedance, the matching is simple, the quality factor of the antenna is low, one antenna can be fused with more frequency bands, and the use experience of a user is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of antenna technology, and in particular to an antenna assembly and an electronic device. Background Art

[0002] As the functions of electronic devices such as mobile phones increase day by day, their use is becoming more and more widespread.

[0003] At present, the architecture of traditional mobile phones and other electronic devices uses IFA (Inverted-F antenna) or planar IFA antenna for radiation. Usually, the aluminum middle frame of mobile phones and other electronic devices is used to match the antenna branches to improve the function. However, with the expansion of frequency bands and standards of mobile phones and other electronic devices, the number of antennas of mobile phones and other electronic devices is also increasing, and the difficulty of stacking is getting higher and higher.

[0004] In order to solve the increasingly extreme problems of the entire device, within a limited space, as the number of antennas and the difficulty of stacking increase, the antenna environments must be coordinated with each other, which in turn deteriorates performance and directly affects the user experience. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present disclosure provides an antenna assembly and an electronic device.

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided an antenna assembly, comprising: an antenna; and an amplifier module for adjusting the impedance of the antenna so that the impedance of the antenna matches a predetermined impedance, wherein an input end of the amplifier module is connected to the antenna.

[0007] In some possible implementations, the amplifier module is a low noise amplifier.

[0008] In some possible implementations, the amplifier module includes a plurality of amplifier modules, and the plurality of amplifier modules are connected in series.

[0009] In some possible implementations, the antenna assembly further includes: a matching network connected to the antenna, wherein the matching network is used to work with the amplifier module to match the impedance of the antenna with the predetermined impedance.

[0010] In some possible implementations, the length of the antenna is one quarter of the wavelength of the frequency band covered by the antenna, and the antenna covers a low frequency band.

[0011] In some possible implementations, the low frequency band includes one or more of the following frequency bands: B5 band, B8 band, B17 band, B28 band, N28 band, B32 band and LB band.

[0012] In some possible implementations, the amplifier module is connected to the matching network, and the matching network includes a matching device. The matching device and the amplifier module together match the impedance of the antenna with the predetermined impedance.

[0013] In some possible implementations, the antenna assembly further includes: a radio frequency chip, and the matching network is connected between the output end of the amplifier module and the radio frequency chip.

[0014] In some possible implementations, the length of the antenna is a preset length, the antenna assembly includes a radio frequency chip, and the output end of the amplifier module is directly connected to the radio frequency chip.

[0015] In some possible implementations, the preset length ranges from 10 to 20 mm.

[0016] In some possible implementations, the antenna is a receiving antenna.

[0017] According to a second aspect of an embodiment of the present disclosure, there is provided an electronic device, comprising: an antenna assembly as described in any implementation of the first aspect above.

[0018] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the present disclosure provides an antenna assembly, the antenna assembly includes an antenna and an amplifier module for adjusting the impedance of the antenna so that the impedance of the antenna matches a predetermined impedance, and the input end of the amplifier module is connected to the antenna. The present disclosure adjusts the impedance of the antenna so that the impedance of the antenna matches the predetermined impedance by setting an amplifier module, the matching is simple, the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, and improve the user experience.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] Figure 1 It is the initial impedance diagram of the IFA antenna in the related art.

[0022] Figure 2 It is a schematic structural diagram of an antenna assembly according to an exemplary embodiment.

[0023] Figure 3 is a schematic structural diagram of another antenna assembly according to an exemplary embodiment.

[0024] Figure 4 is an impedance diagram of an amplifier module according to an exemplary embodiment.

[0025] Figure 5 It is a block diagram of a device according to an exemplary embodiment.

[0027] 100, antenna; 200, amplifier module; 300, matching network; 400, RF chip. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0029] The architecture of traditional mobile phones and other electronic devices uses IFA (Inverted-F antenna) or planar IFA antenna for radiation. Usually, the aluminum middle frame of mobile phones and other electronic devices is used to match the antenna branches to improve the function. However, with the expansion of frequency bands and standards of mobile phones and other electronic devices, the number of antennas of mobile phones and other electronic devices is also increasing, and the difficulty of stacking is increasing.

[0030] In the related art, a traditional antenna realizes the antenna function by matching the antenna impedance to 50 ohm, which is consistent with the transmission line impedance.

[0031] However, the antenna can only achieve a limited number of frequency band combinations, for example, low-frequency LB (700-1000MHz) + B32 (about 1.5GHz). Once this frequency band is achieved, it is difficult to achieve other frequency bands. If more frequency band combinations are achieved on this basis, the number of antennas must be increased, occupying the already limited middle frame space.

[0032] In order to cram these antennas in, the antenna environments must be coordinated with each other, which in turn deteriorates performance and directly affects the user experience.

[0033] Taking a common IFA antenna as an example, the initial impedance of the IFA antenna does not match the 50 ohm of the transmission line, and the impedance deviates from 50 ohm. Figure 1 The initial impedance of the IFA antenna is shown. Figure 1 Among them, the intersection points of 1, 2, 3, and 4 with the real axis are the resonant frequencies of the main basic resonance of the antenna. When resonating, the impedance coincides with the real axis, and the imaginary part of the impedance is 0.

[0034] However, the impedance of these four relatively efficient resonance points deviates from the transmission line impedance of 50ohm, and the normalized circle graph deviates from the origin 1, causing most of the energy to be reflected back and unable to be radiated through the antenna. This state of mismatch between the 50ohm power transmission line and the antenna impedance is called mismatch. In order to radiate more energy, the antenna impedance needs to be adjusted to near the transmission line impedance of 50ohm, and then the antenna needs to be matched.

[0035] The initial impedance bandwidth of the antenna is very wide, which is determined by the quality factor Q of the antenna. Electronic devices initially have quality factor characteristics. For example, the quality factor of the antenna is relatively low. In general, after the inductor or capacitor is matched, the quality factor Q of the antenna will be pulled up by the inductor or capacitor device, resulting in a narrower bandwidth. The problem caused by the narrow bandwidth is that the frequency band range that the antenna can achieve is limited. In order to achieve wider bandwidth performance, methods such as switching the frequency band through switches and using multiple resonant modes have emerged. These methods are all ways to maximize the potential of the antenna under limited bandwidth.

[0036] In order to make fundamental innovations, changes are fundamentally needed in two dimensions: one dimension is that the antenna should not be matched through inductors and capacitors as much as possible, as this will deteriorate the overall quality factor Q; the other dimension is that the antenna should be able to radiate outward as much as possible based on the existing impedance.

[0037] In order to solve the above technical problems, the present disclosure provides an antenna assembly and an electronic device.

[0038] According to a first aspect of an embodiment of the present disclosure, an antenna assembly is provided, including: an antenna and an amplifier module, the amplifier module is used to adjust the impedance of the antenna so that the impedance of the antenna matches a predetermined impedance, and one end of the amplifier module is connected to the antenna.

[0039] It will be appreciated that the predetermined impedance may be the impedance of the transmission line.

[0040] The present disclosure adjusts the impedance of the antenna by setting an amplifier module to match the impedance of the antenna with a predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0041] Based on the same concept, according to a second aspect of an embodiment of the present disclosure, an electronic device is provided, including: the antenna assembly as described in the first aspect above.

[0042] The present invention provides an antenna assembly with an amplifier module, adjusts the impedance of the antenna to match the impedance of the antenna with a predetermined impedance, and the matching is simple. The quality factor of the antenna is low, so that one antenna can integrate more frequency bands, which can greatly expand the performance and arrangement of the antenna and improve the user experience.

[0043] Figure 2 It is a schematic structural diagram of an antenna assembly according to an exemplary embodiment. Figure 3 is a schematic structural diagram of another antenna assembly according to an exemplary embodiment.

[0044] like Figure 2-3 As shown, the antenna assembly includes: an antenna 100 and an amplifier module 200 .

[0045] The amplifier module 200 is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance, and an input end of the amplifier module 200 is connected to the antenna 100 .

[0046] It can be understood that the predetermined impedance may be the impedance of the transmission line, for example, the impedance of the transmission line may be 50 ohms or 75 ohms, and the present disclosure does not specifically limit this.

[0047] The antenna 100 may be an IFA antenna. The antenna 100 may be in an F shape, or may be configured as other shapes suitable for an IFA antenna radiator. It should be noted that the present disclosure is not limited thereto, and in other possible embodiments, the antenna 100 may also be other antennas besides the IFA antenna.

[0048] The amplifier module 200 is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance, so as to avoid the quality factor Q of the antenna 100 after the inductor or capacitor matching being pulled up by the inductor or capacitor device, thereby causing the bandwidth to become narrower.

[0049] In some possible implementations, the amplifier module 200 is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the transmission line impedance of 50 ohm, thereby preventing the quality factor Q of the antenna 100 after matching with the inductor or capacitor from being pulled up by the inductor or capacitor device, thereby causing the bandwidth to become narrower.

[0050] In some possible implementations, the amplifier module 200 is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the transmission line impedance of 75 ohm, thereby preventing the quality factor Q of the antenna 100 after matching with the inductor or capacitor from being pulled up by the inductor or capacitor device, thereby causing the bandwidth to become narrower.

[0051] The present disclosure sets an amplifier module 200 to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands. At the same time, on this basis, due to the active amplification characteristics of the amplifier module 200, the receiving performance of the antenna will also produce additional benefits. The receiving performance of the antenna will have a huge advantage over traditional solutions, thereby improving the user experience.

[0052] In some possible implementations, such as Figure 2-3 As shown, the amplifier module 200 is a low noise amplifier.

[0053] Among them, the low noise amplifier (LNA) is a special type of electronic amplifier, which is mainly used in communication systems to amplify the signal received from the antenna for processing by subsequent electronic equipment. Since the signal from the antenna is generally very weak, the low noise amplifier is generally located very close to the antenna to reduce the loss of the signal through the transmission line. Impedance matching and noise matching at the input and output ends are the key to achieving high gain and low noise.

[0054] In order to achieve maximum power transmission, the input impedance of the low noise amplifier needs to be matched to a predetermined impedance of the transmission line, such as 50 ohm, 75 ohm.

[0055] Figure 4 It is an impedance diagram of an amplifier module according to an exemplary embodiment. There are two matching positions of the low noise amplifier, both near the first quadrant of the impedance, namely the best noise point A and the maximum gain point B. The best noise point A and the maximum gain point B are both close to the initial impedance of the antenna 100, and the impedance characteristics close to the matching end are close to 50ohm, which is equivalent to the impedance of the transmission line, and basically no additional matching is required; at the same time, the quality factor of the antenna 100 is also relatively low; in this way, the antenna 100 that has passed through the low noise amplifier has an impedance characteristic close to the initial impedance of the antenna 100, and the radiation part is large. At the same time, the quality factor Q value of the antenna 100 is also low, and one waveform can simultaneously cover multiple frequency bands that are difficult to be compatible in traditional solutions.

[0056] In the embodiment of the present disclosure, a low noise amplifier is provided to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0057] In some possible implementations, the amplifier module 200 includes a plurality of amplifier modules 200 , and the plurality of amplifier modules 200 are connected in series.

[0058] Among them, there can be one or two amplifier modules 200. It should be noted that the number of amplifier modules 200 should not be too many. On the one hand, too many amplifier modules 200 will cause cost problems; on the other hand, too many amplifier modules 200 will amplify the noise while amplifying the signal.

[0059] In some possible implementations, there is one amplifier module 200, one end of which is connected to the antenna 100. The amplifier module 200 is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0060] In some possible implementations, there are two amplifier modules 200, which are connected in series, one end of which is connected to the antenna 100, and the two amplifier modules 200 are used to jointly adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0061] In some possible implementations, such as Figure 3 As shown, the antenna assembly further includes a matching network 300 .

[0062] The matching network 300 is connected to the antenna 100 , and the matching network 300 is used to match the impedance of the antenna 100 with a predetermined impedance together with the amplifier module 200 .

[0063] It should be noted that the amplifier module 200 can be a low-noise amplifier. If the input impedance of the low-noise amplifier deviates from the predetermined impedance of the transmission line, that is, impedance mismatch, two consequences will occur: power reflection will occur, which will affect the power of the signal received by the low-noise amplifier; and the performance of the antenna component will deteriorate.

[0064] At this time, a matching network 300 is required to match the antenna 100 to a position conjugate with the amplifier module 200; the optimal impedance of the low noise amplifier provides the best noise performance of the low noise amplifier.

[0065] Among them, after the antenna 100 is adjusted by the amplifier module 200, the impedance of the antenna is close to the predetermined impedance, and then by setting the matching network 300, although the adjustment of the antenna 100 by the amplifier module 200 and then the matching network will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the amplifier module 200.

[0066] In some possible implementations, the matching network 300 is used together with the amplifier module 200 to match the impedance of the antenna 100 with the transmission line impedance of 50 ohm, so as to avoid the quality factor Q of the antenna 100 directly passing through the inductor or capacitor after matching being increased by the inductor or capacitor components, thereby seriously affecting the bandwidth.

[0067] In some possible implementations, the matching network 300 is used together with the amplifier module 200 to match the impedance of the antenna 100 with the transmission line impedance of 75 ohm, so as to avoid the quality factor Q of the antenna 100 directly passing through the inductor or capacitor after matching being increased by the inductor or capacitor components, thereby seriously affecting the bandwidth.

[0068] In some possible implementations, the length of the antenna 100 is one quarter of the wavelength of the frequency band covered by the antenna 100 , and the antenna 100 covers a low frequency band.

[0069] Among them, the low frequency band can be the B32 band and the LB band, the LB band ranges from 700MHz to 1000MHz, and the B32 band is about 1.5GHz.

[0070] Figure 4 is an impedance diagram of an amplifier module according to an exemplary embodiment. The amplifier module 200 may be a low noise amplifier, such as Figure 4 As shown, usually the best noise point A and the maximum gain point B of the low noise amplifier are located in the first quadrant, and the input impedance position of the low noise amplifier is set in the fourth quadrant (see Figure 4 ), if the initial impedance position of the antenna 100 is set in the first quadrant (see Figure 4 Theoretically, there is no need to add an additional matching value, that is, there is no need to add a matching network 300, because an increase in the matching value will lead to a narrowing of the band spectrum, which makes the frequency band range that the antenna can achieve narrower. The low noise amplifier is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0071] If the optimal noise point of the low noise amplifier is located in the first quadrant and the initial impedance position of the antenna 100 is set in the fourth quadrant, theoretically, an additional matching value needs to be added, that is, a matching network 300 needs to be added. An inductor can be connected in parallel so that the impedance position of the antenna 100 after matching is located in the first quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then by the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the low noise amplifier.

[0072] If the optimal noise point of the low noise amplifier is located in the fourth quadrant, and the initial impedance position of the antenna 100 is set in the first quadrant, theoretically, an additional matching value needs to be added, that is, a matching network 300 needs to be added. A capacitor can be connected in parallel so that the impedance position of the antenna 100 after matching is located in the fourth quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then by the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the low noise amplifier.

[0073] In the disclosed embodiment, the low noise amplifier is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0074] In some possible implementations, the low frequency band includes one or more of the following frequency bands:

[0075] B5 band, B8 band, B17 band, B28 band, N28 band, B32 band and LB band.

[0076] Exemplarily, the low frequency band includes any one of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0077] Exemplarily, the low frequency band includes any two of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band, and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0078] Exemplarily, the low frequency band includes any three of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band, and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0079] Exemplarily, the low frequency band includes any four of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0080] Exemplarily, the low frequency band includes any five of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0081] Exemplarily, the low frequency band includes any six of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band and the LB band, and the length of the antenna 100 is one quarter of the wavelength of the low frequency band.

[0082] Exemplarily, the low frequency band includes all of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band, and the LB band, and the length of the antenna 100 is a quarter wavelength of the low frequency band.

[0083] In some possible implementations, such as Figure 3 As shown, the amplifier module 200 is connected to the matching network 300 , and the matching network 300 includes a matching device. The matching device and the amplifier module 200 together match the impedance of the antenna 100 with a predetermined impedance.

[0084] The matching device may be a capacitor or an inductor, the number of capacitors may be one, the number of inductors may be one, the amplifier module 200 and the matching network 300 may be connected in parallel or in series, and the embodiments of the present disclosure do not specifically limit this.

[0085] The amplifier module 200 may be a low noise amplifier, such as Figure 4 As shown, usually the best noise point of the low noise amplifier is located in the first quadrant. If the best noise point of the low noise amplifier is located in the first quadrant, the initial impedance position of the antenna 100 is set in the fourth quadrant. In theory, an additional matching value needs to be added, that is, a matching network 300 needs to be added. An inductor can be connected in parallel so that the impedance position of the antenna 100 after matching is located in the first quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then by the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the low noise amplifier. The embodiment of the present disclosure can also connect an inductor or a capacitor in series as needed, so that the impedance position of the antenna 100 after matching is located in the required quadrant.

[0086] If the optimal noise point of the low noise amplifier is located in the fourth quadrant, and the initial impedance position of the antenna 100 is set in the first quadrant, it is theoretically necessary to add an additional matching value, that is, to add a matching network 300. A capacitor can be connected in parallel so that the impedance position of the antenna 100 after matching is located in the fourth quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then by the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 not adjusted by the low noise amplifier. The embodiment of the present disclosure can also connect an inductor or a capacitor in series as needed so that the impedance position of the antenna 100 after matching is located in the required quadrant.

[0087] In the disclosed embodiment, the low noise amplifier is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0088] In some possible implementations, such as Figure 2-3 As shown, the antenna assembly also includes: a radio frequency chip 400 .

[0089] The matching network 300 is connected between the output terminal of the amplifier module 200 and the RF chip 400 .

[0090] The radio frequency chip 400 refers to a chip that communicates via radio frequency.

[0091] The amplifier module 200 may be a low noise amplifier, such as Figure 4 As shown, usually the best noise point of the low noise amplifier is located in the first quadrant. If the best noise point of the low noise amplifier is located in the first quadrant, the initial impedance position of the antenna 100 is set in the fourth quadrant. In theory, an additional matching value needs to be added, that is, a matching network 300 needs to be added. An inductor can be connected in parallel, for example, a 20nH inductor is connected in parallel, so that the impedance position of the matched antenna 100 is located in the first quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the low noise amplifier.

[0092] If the optimal noise point of the low noise amplifier is located in the first quadrant and the initial impedance position of the antenna 100 is set in the third quadrant, theoretically, an additional matching value needs to be added, that is, a matching network 300 needs to be added. A capacitor can be connected in parallel, for example, a 5nH inductor is connected in parallel, so that the impedance position of the antenna 100 after matching is located in the fourth quadrant. Although the adjustment of the antenna 100 by the low noise amplifier and then by the matching network 300 will also affect the bandwidth of the antenna 100, the impact will be much smaller than that of the antenna 100 that has not been adjusted by the low noise amplifier.

[0093] In the embodiment of the present disclosure, since the signal is received at the antenna end, the received signal is transmitted from the antenna 100 to the RF chip 400 via the matching network 300 .

[0094] In some possible implementations, the length of the antenna 100 is a preset length, the antenna assembly includes a radio frequency chip 400 , and the output end of the amplifier module 200 is directly connected to the radio frequency chip 400 .

[0095] It should be noted that the preset length of the antenna 100 determines the initial impedance position of the antenna 100 . Within the preset length range, the antenna 100 can ensure coverage of the required low frequency band.

[0096] In the embodiment of the present disclosure, the amplifier module 200 may adopt a low noise amplifier, such as Figure 4 As shown, usually the best noise point A and the maximum gain point B of the low noise amplifier are located in the first quadrant, and the input impedance position of the low noise amplifier is set in the fourth quadrant (see Figure 4 ), if the initial impedance position of the antenna 100 is set in the first quadrant (see Figure 4 Theoretically, there is no need to add an additional matching value, that is, there is no need to add a matching network 300, because an increase in the matching value will lead to a narrowing of the band spectrum, which makes the frequency band range that the antenna can achieve narrower. The low noise amplifier is used to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands, thereby improving the user experience.

[0097] In some possible implementations, the preset length ranges from 10 to 20 mm.

[0098] For example, the preset length of the antenna 100 is 10 mm, which can ensure coverage of the required low-frequency band. If the initial design length of the antenna is less than the preset length of 10 mm, a capacitor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200; if the initial design length of the antenna is greater than the preset length of 10 mm, an inductor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200.

[0099] For example, the preset length of the antenna 100 is 15 mm, which can ensure coverage of the required low-frequency band. If the initial design length of the antenna is less than the preset length of 15 mm, a capacitor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200; if the initial design length of the antenna is greater than the preset length of 15 mm, an inductor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200.

[0100] For example, the preset length of the antenna 100 is 20 mm, which can ensure coverage of the required low-frequency band. If the initial design length of the antenna is less than the preset length of 20 mm, a capacitor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200; if the initial design length of the antenna is greater than the preset length of 20 mm, an inductor needs to be connected in parallel to match the impedance position of the antenna 100 to the vicinity of the best noise point of the amplifier module 200.

[0101] In some possible implementations, the antenna 100 is a receiving antenna.

[0102] In the embodiment of the present disclosure, since the antenna 100 covers the low frequency band, the low frequency band includes one or more of the B5 band, the B8 band, the B17 band, the B28 band, the N28 band, the B32 band and the LB band. However, the low power cannot be used for transmission but only for reception. Therefore, it can only be used on a pure receiving antenna, and the antenna 100 is a receiving antenna.

[0103] Based on the same concept, according to a second aspect of the embodiments of the present disclosure, an electronic device is provided. The electronic device includes: an antenna assembly as in any embodiment of the first aspect above.

[0104] The electronic device may be a mobile phone, a tablet computer, a laptop computer, a smart bracelet, a smart watch, a smart helmet, smart glasses, etc. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, or a vehicle-mounted device, which is not limited in the embodiments of the present disclosure.

[0105] The present disclosure sets an amplifier module 200 to adjust the impedance of the antenna 100 so that the impedance of the antenna 100 matches the predetermined impedance. The matching is simple and the quality factor of the antenna is low, so that one antenna can integrate more frequency bands. At the same time, on this basis, due to the active amplification characteristics of the amplifier module 200, the receiving performance of the antenna will also produce additional benefits. The receiving performance of the antenna will have a huge advantage over traditional solutions, thereby improving the user experience.

[0106] It is understandable that the antenna assembly and electronic device provided in the embodiments of the present disclosure include hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of the present disclosure.

[0107] Figure 5800 is a block diagram of a device according to an exemplary embodiment. For example, the device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0108] Reference Figure 5 , the device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0109] The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0110] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0111] The power component 806 provides power to the various components of the device 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.

[0112] The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0113] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0114] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0115] The sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can also detect the position change of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration / deceleration of the device 800, and the temperature change of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0116] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0117] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.

[0118] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the device 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0119] It is to be understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0120] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0121] It will be further understood that the terms “center”, “longitudinal”, “lateral”, “front”, “back”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0122] It can be further understood that, unless otherwise specified, “connection” includes a direct connection without other components between the two, and also includes an indirect connection with other components between the two.

[0123] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0124] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following scope of rights.

[0125] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. An antenna assembly, characterized in that: include: antenna; as well as The amplifier module is used to adjust the impedance of the antenna so that the impedance of the antenna matches the predetermined impedance, and the input end of the amplifier module is connected to the antenna.

2. The antenna assembly according to claim 1, characterized in that: The amplifier module is a low noise amplifier.

3. The antenna assembly according to claim 1, characterized in that: The amplifier module includes a plurality of amplifier modules, and the plurality of amplifier modules are connected in series.

4. The antenna assembly according to claim 2, characterized in that: Also includes: A matching network is connected to the antenna, and the matching network is used to match the impedance of the antenna with the predetermined impedance together with the amplifier module.

5. The antenna assembly according to claim 1, characterized in that: The length of the antenna is one quarter of the wavelength of the frequency band covered by the antenna, and the antenna covers a low frequency band.

6. The antenna assembly according to claim 5, characterized in that: The low frequency band includes one or more of the following frequency bands: B5 band, B8 band, B17 band, B28 band, N28 band, B32 band and LB band.

7. The antenna assembly according to claim 4, characterized in that: The amplifier module is connected to the matching network. The matching network includes a matching device, and the matching device and the amplifier module together match the impedance of the antenna with the predetermined impedance.

8. The antenna assembly according to claim 4, characterized in that: Also includes: A radio frequency chip, wherein the matching network is connected between the output end of the amplifier module and the radio frequency chip.

9. The antenna assembly according to claim 1, characterized in that: The length of the antenna is a preset length, the antenna assembly includes a radio frequency chip, and the output end of the amplifier module is directly connected to the radio frequency chip.

10. The antenna assembly according to claim 9, characterized in that: The preset length ranges from 10 to 20 mm.

11. The antenna assembly according to claim 1, characterized in that: The antenna is a receiving antenna.

12. An electronic device, characterized in that: include: The antenna assembly according to any one of claims 1 to 11.

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