Fifth-generation mobile communication antenna module
By designing complementary antenna groups and multi-input and multi-output technology, the problems of antenna module space limitation and frequency band compatibility in laptops are solved, and efficient multi-band coverage and multi-input and multi-output performance are achieved.
Patent Information
- Application Number
- CN202510187955.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-05-27
Smart Images
Figure CN120049190A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an antenna, and particularly to a fifth-generation mobile communication antenna module. Background Art
[0002] The performance of laptop computers has been gradually enhanced. Compared with smartphones, laptop computers still have the advantages of convenient data processing and irreplaceable efficiency. Since current smartphones can already use larger wireless transmission rates, such as fourth-generation mobile communication (4G) and fifth-generation mobile communication (5G), laptop computers also need to have more extensive wireless transmission performance.
[0003] Common wireless communication technologies for existing mobile devices are within the scope of wireless local area network (WLAN) and wireless wide area network (WWAN). Wireless local area network is an essential wireless specification for existing laptop computers. Wireless wide area network includes 2G, 3G, 4G LTE, and 5G. The mainstream products of laptop computer brands have further stepped into the performance specifications of 5G based on the long-term evolution technology (LTE) using 4G.
[0004] However, if both wireless local area network and wireless wide area network are available in a laptop computer, multiple antennas must be used. The use of multi-channel specifications requires the antennas to occupy a large area of internal components (antenna space). How to arrange antennas with both wireless local area network and wireless wide area network functions within a limited space and conform to as many operating frequency bands as possible is a problem that continuously increases the difficulty for manufacturers. Summary of the Invention
[0005] In view of the above-mentioned defects in the prior art, the task of the present invention is to provide a fifth-generation mobile communication antenna module, aiming to have both wireless local area network and wireless wide area network functions while controlling the volume of the antenna and conforming to as many operating frequency bands as possible.
[0006] The technical solution of the present invention is as follows: A fifth-generation mobile communication antenna module is disposed in a laptop computer and includes:
[0007] A first antenna group, including a first main antenna, a first sub-antenna, and a first auxiliary antenna disposed on a first substrate. The first sub-antenna is disposed on the left side of the first main antenna, and the first auxiliary antenna is located between the first main antenna and the first sub-antenna; and
[0008] A second antenna group, disposed on the left side of the first antenna group, including a second main antenna, a second sub-antenna, and a second auxiliary antenna disposed on a second substrate. The second sub-antenna is disposed on the right side of the second main antenna, and the second auxiliary antenna is located between the second main antenna and the second sub-antenna;
[0009] Among them, the operating frequency ranges of the first main antenna and the second main antenna are complementary to each other and jointly cover the low frequency of Long-Term Evolution (LTE); among them, the first secondary antenna and the first auxiliary antenna together form a first wireless local area network antenna group; among them, the second secondary antenna and the second auxiliary antenna together form a second wireless local area network antenna group.
[0010] Further, the operating frequency ranges of the first main antenna and the first secondary antenna both cover the intermediate frequency and high frequency of Long-Term Evolution (LTE); among them, the operating frequency ranges of the second main antenna and the second secondary antenna both cover the intermediate frequency and high frequency of Long-Term Evolution (LTE); where the frequency range of the low frequency of Long-Term Evolution (LTE) is 617 MHz to 960 MHz, where the frequency range of the intermediate frequency of Long-Term Evolution (LTE) is 1710 MHz to 2690 MHz, and the frequency range of the high frequency of Long-Term Evolution (LTE) is 3400 MHz to 3800 MHz and 4900 MHz to 5925 MHz.
[0011] Further, the first main antenna and the second main antenna are Long-Term Evolution (LTE) multiple-input multiple-output antennas.
[0012] Further, both the first wireless local area network antenna group and the second wireless local area network antenna group are multiple-input multiple-output antennas.
[0013] Further, the first wireless local area network antenna group and the second wireless local area network antenna group together form a four-input four-output antenna group.
[0014] Further, the operating frequency bands of the first secondary antenna, the first auxiliary antenna, the second secondary antenna, and the second auxiliary antenna include the 2.4 GHz and 5 GHz frequency bands.
[0015] Further, the first substrate has a first end and a second end opposite to each other; among them, the first main antenna is close to the first end and has a first radiation part and a second radiation part, where the first radiation part has a first feeding end, the second radiation part has a first grounding end, where the first feeding end does not contact the first feeder and forms a coupled feeding, the first grounding end is connected to the ground, and the second radiation part couples the first radiation part; among them, the first secondary antenna is close to the second end and has a third radiation part and a fourth radiation part, where the third radiation part has a second feeding end, the fourth radiation part has a second grounding end, where the second feeding end does not contact the second feeder and forms a coupled feeding, the second grounding end is connected to the ground, and the fourth radiation part couples the third radiation part; among them, the first auxiliary antenna has a third feeding end, and the third feeding end does not contact the third feeder and forms a coupled feeding.
[0016] Furthermore, the second substrate has a third end and a fourth end opposite to each other; wherein, the second main antenna is close to the third end and has a fifth radiation portion and a sixth radiation portion, wherein the fifth radiation portion has a fourth feeding end, the sixth radiation portion has a third grounding end, wherein the fourth feeding end is not in contact with the fourth feeder and constitutes a coupled feeding, the third grounding end is connected to the ground, and the sixth radiation portion couples the fifth radiation portion; wherein, the second sub-antenna is close to the fourth end and has a seventh radiation portion and an eighth radiation portion, wherein the seventh radiation portion has a fifth feeding end, the eighth radiation portion has a fourth grounding end, wherein the fifth feeding end is not in contact with the fifth feeder and constitutes a coupled feeding, the fourth grounding end is connected to the ground, and the eighth radiation portion couples the seventh radiation portion; wherein, the second auxiliary antenna has a sixth feeding end, and the sixth feeding end is not in contact with the sixth feeder and constitutes a coupled feeding.
[0017] Furthermore, the first radiation portion is located between the first grounding end of the second radiation portion and the first auxiliary antenna; wherein, the second radiation portion has a first extended end segment, and the first extended end segment is located between the first radiation portion and the first auxiliary antenna to improve the isolation between the first main antenna and the first auxiliary antenna;
[0018] Wherein, the fifth radiation portion is located between the third grounding end of the sixth radiation portion and the second auxiliary antenna; wherein, the sixth radiation portion has a second extended end segment, and the second extended end segment is located between the fifth radiation portion and the second auxiliary antenna to improve the isolation between the second main antenna and the second auxiliary antenna;
[0019] Wherein, both the second feeder and the third feeder are connected to a first grounding conductor, and the first grounding conductor has a first slot, wherein the connection between the second grounding end and the first grounding conductor is disposed on the right side of the first slot, and the connection between the first grounding isolation portion of the first auxiliary antenna and the first grounding conductor is disposed on the left side of the first slot to improve the isolation between the first sub-antenna and the first auxiliary antenna;
[0020] Wherein, both the fifth feeder and the sixth feeder are connected to a second grounding conductor, and the second grounding conductor has a second slot, wherein the connection between the fourth grounding end and the second grounding conductor is disposed on the right side of the second slot, and the connection between the second grounding isolation portion of the second auxiliary antenna and the second grounding conductor is disposed on the left side of the second slot to improve the isolation between the second sub-antenna and the second auxiliary antenna.
[0021] Further, it includes a first regulation circuit and a second regulation circuit for increasing the block where the operating frequencies of the first main antenna and the second main antenna overlap; wherein, the first regulation circuit has a first regulation part coupled to the first extended end section, and the first regulation part and the first extended end section are not connected to each other; wherein, the second regulation circuit has a second regulation part coupled to the second extended end section, and the second regulation part and the second extended end section are not connected to each other. Further,
[0022] The advantages of the present invention compared with the prior art are as follows:
[0023] Without using a regulation circuit, the present invention uses two Long Term Evolution (LTE) low-frequency antennas with complementary operating frequencies; when using a regulation circuit, it can achieve dual antennas for LTE low frequency. In the intermediate frequency and high frequency bands, it can meet the isolation requirements, and realize two sets of multiple-input multiple-output (MIMO) antennas, or a set of four MIMO antennas, achieving better MIMO performance. For the wireless local area network, it also realizes two sets of MIMO antennas, or a set of four MIMO antennas. The antenna module of the present invention can be applied to a variety of different MIMO application combinations, and can also achieve the effects of multi-antenna integration and reduced occupied space, having high industrial application value. Description of the Drawings
[0024] Figure 1 It is a schematic diagram of a fifth-generation mobile communication antenna module provided by an embodiment of the present invention.
[0025] Figure 2 It is a schematic diagram of the front view of the first antenna group provided by an embodiment of the present invention.
[0026] Figure 3 It is a schematic diagram of the front view of the second antenna group provided by an embodiment of the present invention.
[0027] Figure 4 It is a schematic diagram of the rear view of the first antenna group provided by an embodiment of the present invention.
[0028] Figure 5 It is a schematic diagram of the top view of the first antenna group provided by an embodiment of the present invention.
[0029] Figure 6 It is a schematic diagram of the bottom view of the first antenna group provided by an embodiment of the present invention.
[0030] Figure 7 It is another three-dimensional schematic diagram of the first antenna group provided by an embodiment of the present invention.
[0031] Figure 8 It is yet another three-dimensional schematic diagram of the first antenna group provided by an embodiment of the present invention.
[0032] Figure 9 It is a partial enlarged view of the first main antenna provided by an embodiment of the present invention.
[0033] Figure 10 It is a partial enlarged view of the first sub-antenna and the first auxiliary antenna provided by an embodiment of the present invention. Detailed implementation manners
[0034] The present invention will be further described below in conjunction with embodiments, but it is not intended to limit the present invention.
[0035] Please refer to Figure 1 , this embodiment provides a fifth-generation mobile communication antenna module for being disposed in a laptop computer. Preferably, the active regulation type long-term evolution antenna is an integrated module including a wireless wide area network (WWAN) antenna and a wireless local area network (WLAN) antenna. A fifth-generation mobile communication antenna module is disposed in a laptop computer and includes a first antenna group 1 and a second antenna group 2. For the sake of convenience of description, in Figure 1 , only the relative positions of the components of the first antenna group 1 and the second antenna group 2 are represented by dashed boxes. The detailed structures of the components of the first antenna group 1 and the second antenna group 2 will be described one by one in conjunction with other drawings subsequently. The first antenna group 1 includes a first main antenna 11, a first sub-antenna 12, and a first auxiliary antenna 13 disposed on a first substrate 100. The first sub-antenna 12 is disposed on the left side of the first main antenna 11, and the first auxiliary antenna 13 is located between the first main antenna 11 and the first sub-antenna 12. The second antenna group 2 is disposed on the left side of the first antenna group 1 and includes a second main antenna 21, a second sub-antenna 22, and a second auxiliary antenna 23 disposed on a second substrate 200. The second sub-antenna 22 is disposed on the right side of the second main antenna 21, and the second auxiliary antenna 23 is located between the second main antenna 21 and the second sub-antenna 22. Among them, the operating frequency ranges of the first main antenna 11 and the second main antenna 21 are complementary to each other and jointly cover a long-term evolution technology low frequency (617 MHz - 960 MHz); among them, the first sub-antenna 12 and the first auxiliary antenna 13 together form a first wireless local area network antenna group; among them, the second sub-antenna 22 and the second auxiliary antenna 23 together form a second wireless local area network antenna group.
[0036] Furthermore, the operating frequency ranges of the first main antenna 11 and the first sub-antenna 12 both cover a Long Term Evolution (LTE) mid-frequency and an LTE high-frequency. Similarly, the operating frequency ranges of the second main antenna 21 and the second sub-antenna 22 both cover the LTE mid-frequency and the LTE high-frequency. The frequency range of the LTE low-frequency is 617 MHz to 960 MHz. The frequency range of the LTE mid-frequency is 1710 MHz to 2690 MHz. The frequency ranges of the LTE high-frequency are 3400 MHz to 3800 MHz and 4900 MHz to 5925 MHz. Further, the operating frequency bands of the first sub-antenna 12, the first auxiliary antenna 13, the second sub-antenna 22, and the second auxiliary antenna 23 include the 2.4 GHz and 5 GHz frequency bands of the wireless local area network.
[0037] Preferably, the first main antenna 11 and the second main antenna 21 are LTE multiple-input multiple-output (MIMO) antennas (hereinafter, Long Term Evolution will be referred to as LTE). Thus, two LTE low-frequency multiple-input multiple-output antennas (the first main antenna 11 and the second main antenna 21) can be achieved. For the LTE mid-frequency and high-frequency: the first main antenna 11 and the first sub-antenna 12 are a group of LTE mid-high-frequency multiple-input multiple-output antennas, and the second main antenna 21 and the second sub-antenna 22 are also another group of LTE mid-high-frequency multiple-input multiple-output antennas, so there are two groups of LTE mid-high-frequency multiple-input multiple-output antennas. Moreover, these two groups of LTE mid-high-frequency multiple-input multiple-output antennas (each with two antennas) can also be combined into a group of LTE mid-high-frequency multiple-input multiple-output antennas with four antennas.
[0038] Furthermore, preferably, both the first wireless local area network antenna group and the second wireless local area network antenna group are multiple-input multiple-output antennas. Further still, the first wireless local area network antenna group and the second wireless local area network antenna group together form a group of four-input four-output antennas.
[0039] The substrates of the above-mentioned first antenna group 1 and second antenna group 2 are preferably made by laser engraving and forming. In one embodiment, the structures of the first antenna group 1 and the second antenna group 2 are approximately symmetric to each other. That is to say, when the first antenna group 1 and the second antenna group 2 are generally two mirror-image structures, the design will be simpler, but the present invention is not limited thereto. The reason why the structures of the first antenna group 1 and the second antenna group 2 are not completely symmetric is that the operating frequency ranges of the first main antenna 11 and the second main antenna 21 need to complement each other and can jointly cover a long-term evolution technology low frequency (617 MHz - 960 MHz). For the above reasons, there must be differences between the first main antenna 11 and the second main antenna 21. And, in order to fully cover the large bandwidth of the long-term evolution technology low frequency (617 MHz - 960 MHz), there are two methods. The first case is not to use a tuner; the second case is to use a tuner. The tuner is used to adjust the operation of the first main antenna 11 and the second main antenna 21 in the long-term evolution technology low frequency without affecting the intermediate frequency and high frequency of the long-term evolution technology. In the first case of not using a tuner, the available operating frequency range of the first main antenna 11 needs to satisfy a part of the long-term evolution technology low frequency (617 MHz - 960 MHz), for example, 617 MHz - 800 MHz; and the available operating frequency range of the second main antenna 12 needs to satisfy at least the part not covered by the first main antenna 11, for example, 800 MHz to 960 MHz. In this way, the available operating frequency ranges of the first main antenna 11 and the second main antenna 21 complement each other. Of course, the available operating frequency ranges of the first main antenna 11 and the second main antenna 21 may also partially overlap. For example, around plus or minus 100 MHz based on 800 MHz is the operating frequency that both antennas can achieve respectively, but the present invention is not limited thereto. As can be seen from the above, the differences in the symmetric structures of the first main antenna 11 and the second main antenna 21 are thus generated. On the other hand, in the second case of using a tuner, based on the first case, it can be known that the available operating frequency ranges of the first main antenna 11 and the second main antenna 21 complement each other but do not necessarily overlap. After the first main antenna 11 and the second main antenna 21 each use a tuner, by changing the available operating frequencies of the first main antenna 11 and the second main antenna 21, the overlapping block of the operating frequencies of the first main antenna 11 and the second main antenna 21 can be increased. The control method of the tuner will be described later.
[0040] Refer to Figure 2, The detailed architecture of the first antenna group 1 is as follows. The first antenna group 1 includes a first substrate 100, a first main antenna 11, a first sub-antenna 12, and a first auxiliary antenna 13. The first substrate 100 has a first end 101 and a second end 102 that are opposite to each other. The first substrate 100 is generally in a long strip shape, and the distance between the first end 101 and the second end 102 that are opposite to each other is the length of the long side of the first substrate 100. The long-strip-shaped first substrate 100 arranges the first main antenna 11, the first sub-antenna 12, and the first auxiliary antenna 13 in a row configuration. This antenna module is used to be disposed in the housing space above the screen of a notebook computer as a built-in antenna module. The housing space above the screen of the above-mentioned notebook computer is a common placement position for the built-in antenna module, especially for the placement position of the wireless wide area network (WWAN) antenna. Traditionally, the placement position of the wireless local area network (WLAN) antenna is in other areas (such as around the keyboard or near the input / output connectors). In the embodiment of the present invention, the WWAN antenna and the WLAN antenna are integrated into the same module and are also disposed in the same antenna area, which can reduce the antenna occupied space, contribute to component integration, and reduce the electromagnetic interference between the antenna and other components. For the detailed structure of the second antenna group 2, reference can be made to Figure 3 , which will be described after the description of the first antenna group 1.
[0041] Refer again to Figure 2 , the front view shows the antenna configuration of the front surface 100a of the first substrate 100. Refer to Figure 4 , the rear view shows the antenna configuration of the back surface 100b of the first substrate 100. Refer to Figure 5 , the top view shows the antenna configuration of the upper surface 100c of the first substrate 100. Refer to Figure 6 , the bottom view shows the antenna configuration of the bottom surface 100d of the first substrate 100. The first main antenna 11 is disposed on the first substrate 100 and is close to the first end 101, and has a first radiation portion 111 and a second radiation portion 112. The first radiation portion 111 has a first feeding end 111a, and the second radiation portion 112 has a first grounding end 112a, wherein the first feeding end 111a does not contact the first feeder F1 and constitutes a coupled feeding, and the first grounding end 112a is connected to the ground G. Figure 7 、 Figure 8Shows the configuration of the feeder lines and copper foils. There are three feeder lines, namely the first feeder line F1, the second feeder line F2, and the third feeder line F3. The copper foils are mainly divided into two large blocks, namely the first copper foil C1 and the second copper foil C2, which are used for the function of grounding the antenna module. The first copper foil C1 is below the first main antenna 11 and is connected to the first substrate 100 at the bottom surface 100d. The second copper foil C2 is below the first sub-antenna 12 and the first auxiliary antenna 13 and is connected to the first substrate 100 at the bottom surface 100d. In the figure, the copper foil located below each antenna represents the ground G, and the connection method of the ground will not be elaborated further hereafter. Referring together to Figure 5 the bottom view of Figure 7 and the perspective view of
[0042] Referring together to Figure 9 the partial enlarged view shown in
[0043] The second radiation portion 112 is coupled to the first radiation portion 111. A large part of the second radiation portion 112 is located on the back surface 100b. The first radiation portion 111 is located between the first grounding end 112a of the second radiation portion 112 and the first auxiliary antenna 13. The second radiation portion 112 has a main section 1121, a bent section 1122, and a first extended end section 1123. The main section 1121 on the back surface 100b is connected to the first grounding end 112a, the bent section 1122 on the upper surface 100c is connected to the main section 1121, and the first extended end section 1123 on the front surface 100a is connected to the bent section 1122. The first extended end section 1123 is located between the first radiation portion 111 and the auxiliary antenna 13 to improve the isolation between the first main antenna 11 and the first auxiliary antenna 13. In the figure, the first extended end section 1123 is not close to the first auxiliary antenna 13 but is closer to the first branch 1111 of the first radiation portion 111 to assist the second radiation portion 112 in coupling with the first radiation portion 111.
[0044] In the case of using a regulation circuit, it is more necessary to use Figure 2 the first regulation unit T1; on the contrary, in the case of not using a regulation circuit, the first regulation unit T1 can be removed. In the case of using a regulation circuit, the first antenna group 1 uses the first regulation circuit, and correspondingly, the second antenna group 2 uses the second regulation circuit. The functions of the two regulation circuits are the same. The first regulation circuit is used to increase the overlapping block of the operating frequencies of the first main antenna 11 and the second main antenna 21. The first regulation circuit has the first regulation unit T1 that couples the first extended end segment 1123, and the first regulation unit T1 and the first extended end segment 1123 are not connected to each other. The first regulation circuit is used to actively adjust the operating mode of the first main antenna 11, especially to control the operating mode in the low-frequency range of 617 MHz - 960 MHz, and uses multiple switches to control multiple electrode states so that the operating band conforms to any one or a combination of the following frequency band numbers: B12, B29, B28, B13, B14, B26, B19, B18, B5, B6, B20, B8. And the change of the operating state basically does not affect the operating state above 1710 MHz. In other words, when the first main antenna 11 and the second main antenna 21 are long-term evolution technology multiple-input multiple-output antennas, without changing the second main antenna 21, the available operating frequency of the first main antenna 11 is adjusted by using the first regulation unit T1, so that the available operating frequency block of the first main antenna 11 moves towards the available operating frequency block of the second main antenna 21, and the overlapping block between them is increased, which is beneficial to the application in the multiple-input multiple-output operating mode.
[0045] In addition, under the size limitation of the structure of this embodiment, the circuit board of the first regulation circuit is not arranged on the first substrate 100. The circuit board can be arranged around the first substrate 100 or on the mechanical components around the first substrate 100. On the contrary, if the circuit board of the first regulation circuit and the first substrate 100 are to form a module, a circuit board setting block needs to be added near the first regulation unit T1. At this time, the size of the first substrate 100 must be increased. However, the present invention does not limit the setting method of the circuit block of the first regulation circuit.
[0046] The first sub-antenna 12 is arranged on the substrate 100 and is close to the second end 102, and has a third radiation part 121 and a fourth radiation part 122. The third radiation part 121 has a second feeding end 121a, and the fourth radiation part 122 has a second grounding end 122a. Wherein, the second feeding end 121a does not contact the second feeder F2 and forms a coupled feeding, and the second grounding end 122a is connected to the ground G. Refer to Figure 6 the lower view angle of Figure 7A perspective view. Since the above-mentioned second feeder F2 is disposed on the bottom surface 100d of the first substrate 100, the second feeding end 121a extends to the bottom surface 100d of the first substrate 100 to achieve optimal coupling with the second feeder F2 located on the bottom surface 100d. Furthermore, with reference to Figure 10 A partially enlarged view. The fourth radiation portion 122 further includes a parallel ground end 122b. The parallel ground end 122b is connected to the ground G. The second ground end 122a and the parallel ground end 122b are parallel to each other. The fourth radiation portion 122 is coupled to the third radiation portion 121. Further, the second ground end 122a of the fourth radiation portion 122 is located between the third radiation portion 121 and the first auxiliary antenna 13. Furthermore, the third radiation portion 121 is closer to the ground G than the fourth radiation portion 122, and the third radiation portion 121 and the fourth radiation portion 122 extend in opposite directions to each other.
[0047] With reference to Figure 4 and other related drawings, the first auxiliary antenna 13 is disposed on the first substrate 100 and is located between the first main antenna 11 and the first sub-antenna 12. It has a third feeding end 13a. The third feeding end 13a is not in contact with the third feeder F3 and constitutes a coupled feeding. The coupled feeding formed by the first feeding end 111a and the coupled feeding formed by the third feeding end 13a are used to improve the isolation between the first main antenna 11 and the first auxiliary antenna 13. With reference to Figure 4 、 Figure 7 and Figure 8 , the first auxiliary antenna 13 further has an auxiliary radiation portion 131. Since the above-mentioned third feeder F3 is disposed on the bottom surface 100d of the first substrate 100, the third feeding end 13a extends to the bottom surface 100d of the first substrate 100 to achieve optimal coupling with the third feeder F3 located on the bottom surface 100d. In addition, the auxiliary radiation portion 131 is mainly disposed on the back surface 100b. In Figure 8 , the auxiliary radiation portion 131 has two branches.
[0048] Furthermore, the auxiliary radiation portion 131 of the first auxiliary antenna 13 and the fourth radiation portion 122 extend in the same direction (i.e., extending towards the second end 102), and the auxiliary radiation portion 131 and the third radiation portion 121 extend in opposite directions, so as to improve the isolation between the first sub-antenna 12 and the first auxiliary antenna 13. In other words, for the first sub-antenna 12 and the first auxiliary antenna 13, the feeding points are as far away as possible (the second feeding end 121a and the third feeding end 13a are away from each other), and the grounded fourth radiation portion 122 is located between the third radiation portion 121 (a part of the first sub-antenna 12) and the auxiliary radiation portion 131 (a part of the first auxiliary antenna 13), and by using the way that the fourth radiation portion 122 and the auxiliary radiation portion 131 extend in the same direction, better isolation can be provided when the auxiliary radiation portion 131 and the third radiation portion 121 extend towards each other and approach. The purpose of the auxiliary radiation portion 131 and the third radiation portion 121 extending towards each other and approaching is to reduce the volume of the antenna. In the design of the embodiment of the present invention, both the antenna volume can be reduced and the isolation can be improved.
[0049] Furthermore, the second feeder F2 and the third feeder F3 are both connected to the first grounding conductor 14. The first grounding conductor 14 is a part of the second copper foil C2. The first grounding conductor 14 has a first slot 141, and the first grounding conductor 14 is directly connected to the ground G. The first auxiliary antenna 13 further has a first ground isolation portion 132. The connection between the second grounding end 122a and the first grounding conductor 14 is provided on the right side of the first slot 141 (closer to the second end 102), and the connection between the first ground isolation portion 132 of the first auxiliary antenna 13 and the first grounding conductor 14 is provided on the left side of the first slot 141 (farther from the second end 102), so as to improve the isolation between the first sub-antenna 12 and the first auxiliary antenna 13.
[0050] The applicable frequency bands of the first antenna group 1 include the existing wireless local area network frequency bands, the frequency bands of Long-Term Evolution technology including the third-generation mobile communication (3G) to the fourth-generation mobile communication (4G), and the 5G sub-6 band. The first main antenna 11 is mainly used as the main antenna for LTE low frequency, which can be simply referred to as LTE MAIN, and is not only used for LTE low frequency, but also includes LTE medium frequency and LTE high frequency. The first sub-antenna 12 is the sub-antenna of the first main antenna 11. The first sub-antenna 12 is the main antenna for LTE medium frequency and LTE high frequency, and can be used for multiple-input multiple-output (MIMO) of LTE medium frequency and LTE high frequency. The first sub-antenna 12 is also the main antenna of WLAN, which can be simply referred to as LTE-WLAN MAIN. The first auxiliary antenna 13 is the auxiliary antenna of WLAN, which can be simply referred to as 1st WLAN MIMO. Therefore, the first main antenna 11 and the first sub-antenna 12 are MIMO antennas for LTE medium frequency and LTE high frequency. Also, the first sub-antenna 12 and the first auxiliary antenna 13 are the first wireless local area network antenna group. When the size of the first substrate 100 is used as the limit of the antenna size, only by using the first substrate 100 with a length of 102 millimeters (mm), a width of 8.5 millimeters, and a thickness of 2.5 millimeters, the operation requirements of the above wireless communication system can be achieved. The antenna module of the embodiment of the present invention has better isolation than the traditional antenna module and can meet the requirements of laptop manufacturers. In particular, for the isolation design in the frequency range of 1710 MHz to 4900 MHz, it can provide better performance than the traditional antenna design.
[0051] Similar to the first antenna group 1, the applicable frequency bands of the second antenna group 2 include existing wireless local area network frequency bands, frequency bands of long-term evolution technology including the third-generation mobile communication (3G) to the fourth-generation mobile communication (4G), and the 5G sub-6 band. The second main antenna 21 is mainly used as the LTE main antenna and is complementary to the first main antenna 11, and can be simply referred to as LTE AUX. The second sub-antenna 22, which is complementary to the first sub-antenna 12, is the main antenna for LTE intermediate frequency and LTE high frequency, can be used for multiple-input multiple-output (MIMO) of LTE intermediate frequency and LTE high frequency, and the second sub-antenna 22 is also the main antenna of WLAN, and can be simply referred to as LTE-WLAN AUX. The second auxiliary antenna 23 is the auxiliary antenna of WLAN and can be simply referred to as 2nd WLAN MIMO. Therefore, the second main antenna 21 and the second sub-antenna 22 are MIMO antennas for LTE intermediate frequency and LTE high frequency. Moreover, the second sub-antenna 22 and the second auxiliary antenna 23 are the second wireless local area network antenna group. Furthermore, when the first antenna group 1 and the second antenna group 2 are used in combination, the first main antenna 11 and the second main antenna 21 are LTE MIMO antennas for LTE low frequency. For LTE intermediate frequency and LTE high frequency, the first main antenna 11, the first sub-antenna 12, the second main antenna 21, and the second sub-antenna 22 can jointly form a group of four-input four-output antennas. For the wireless local area network, the first wireless local area network antenna group and the second wireless local area network antenna group jointly form a group of four-input four-output antennas. Generally speaking, LTE low frequency has two complementary antennas and can also be used as a two-input two-output antenna; for LTE intermediate frequency and high frequency, there are two groups of two-input two-output antennas, which can also jointly form a group of four-input four-output antennas; for the wireless local area network, there are two groups of two-input two-output antennas, which can also jointly form a group of four-input four-output antennas. Therefore, the antenna module of the embodiment of the present invention can be applied to a variety of different MIMO application combinations.
[0052] Next, for the detailed structure of the second antenna group 2, compared with the first antenna group 1, if the second antenna group 2 is generated in a symmetric structure, refer to Figure 3, it can be easily known that the second substrate 200 has a third end 201 and a fourth end 202 that are opposite to each other. The copper foils connecting the second substrate 200 are mainly divided into two large blocks, namely the third copper foil C3 and the fourth copper foil C4, which are used for the function of grounding the antenna module. The third copper foil C3 is below the second main antenna 21, and the fourth copper foil C4 is below the second sub-antenna 22 and the second auxiliary antenna 23. The second main antenna 21 is close to the third end 201 and has a fifth radiation portion 211 and a sixth radiation portion 212. The fifth radiation portion 211 has a fourth feeding end 211a, and the sixth radiation portion 212 has a third grounding end (not shown in the figure, refer to the description of the first grounding end 112a above). The fourth feeding end 211a does not contact the fourth feeder F4 and constitutes a coupled feeding. The third grounding end 212a is connected to the ground G, and the sixth radiation portion 212 is coupled to the fifth radiation portion 211. Among them, the second sub-antenna 22 is close to the fourth end 202 and has a seventh radiation portion 221 and an eighth radiation portion 222. The seventh radiation portion 221 has a fifth feeding end 221a, and the eighth radiation portion 222 has a fourth grounding end 222a. The fifth feeding end 221a does not contact the fifth feeder F5 and constitutes a coupled feeding. The fourth grounding end 222a is connected to the ground G, and the eighth radiation portion 222 is coupled to the seventh radiation portion 221. Among them, the second auxiliary antenna 23 has a sixth feeding end (not shown in the figure, refer to the description of the third feeding end 13a above). The sixth feeding end does not contact the sixth feeder F6 and constitutes a coupled feeding. And, similar to the first antenna group 1, the fifth radiation portion 211 of the second antenna group 2 is located between the third grounding end 212a of the sixth radiation portion 212 and the second auxiliary antenna 23. The sixth radiation portion 212 has a second extended end segment 2123 (refer to the description of the second radiation portion 112. The sixth radiation portion 212 also has a main segment and a bent segment, but they are not shown in the figure). Similar to the first extended end segment 1123, the second extended end segment 2123 is located between the fifth radiation portion 211 and the second auxiliary antenna 23 to improve the isolation between the second main antenna 21 and the second auxiliary antenna 23. And, both the fifth feeder F5 and the sixth feeder F6 are connected to the second grounding conductor 24. The second grounding conductor 24 is a part of the fourth copper foil C4. The second grounding conductor 24 has a second slot 241, and the second grounding conductor 24 is directly connected to the ground G. The connection point of the fourth grounding end 222a and the second grounding conductor 24 is provided on the right side of the second slot 241, and the connection point of the second grounding isolation portion 232 of the second auxiliary antenna 23 and the second grounding conductor 24 is provided on the left side of the second slot 241 to improve the isolation between the second sub-antenna 22 and the second auxiliary antenna 23.
[0053] In the case where a regulation circuit is used in the second antenna group 2, the second regulation circuit is used to increase the block where the operating frequencies of the first main antenna 11 and the second main antenna 21 overlap. The second regulation circuit has a second regulation unit T2 that couples the second extended end segment 2123, and the second regulation unit T2 and the second extended end segment 2123 are not connected to each other. The second regulation circuit is used to actively adjust the operating mode of the second main antenna 21, especially to control the operating mode in the low frequency range of 617 MHz - 960 MHz, and uses multiple switches to control various electrode states so that the operating band conforms to any one or a combination of the following frequency band numbers B12, B29, B28, B13, B14, B26, B19, B18, B5, B6, B20, B8. And the change of the operating state basically does not affect the operating state above 1710 MHz. Substantially speaking, the structure of the second antenna group 2 is roughly a horizontal mirror image of the first antenna group 1, and its details and functions can be simulated by the detailed structure description of the first antenna group 1 before, without repeated description. However, based on the aforementioned frequency band usage requirements, it does not need to be completely symmetrical, and the dimensions do not need to be exactly the same. The reasons have been explained before and will not be repeated here. Further, when the first main antenna 11 and the second main antenna 21 are long-term evolution technology multiple-input multiple-output antennas, without changing the first main antenna 11, the available operating frequency of the second main antenna 21 is adjusted by using the second regulation unit T2, so that the available operating frequency block of the second main antenna 21 moves towards the available operating frequency block of the first main antenna 11, thereby increasing the overlapping block between them, which is beneficial to the application of the multiple-input multiple-output operating mode. Furthermore, when the first regulation unit T1 and the second regulation unit T2 are used simultaneously, the available operating frequencies of the first main antenna 11 and the second main antenna 21 can be changed simultaneously. The blocks of their operating frequencies can even completely overlap, and the operating frequency blocks of both can also move simultaneously (whether towards high frequency or low frequency), which is very beneficial to the use of the multiple-input multiple-output operating mode.
[0054] In summary, for the fifth-generation mobile communication antenna module provided by the embodiments of the present invention, without using a regulation circuit, two Long-Term Evolution (LTE) low-frequency antennas (below 960 MHz) with complementary operating frequencies are used; with the use of a regulation circuit, dual antennas (two-input two-output) for LTE low frequency can be achieved. In the intermediate frequency range (1710 MHz to 2690 MHz) and high frequency range (3400 MHz to 3800 MHz and 4900 MHz to 5925 MHz), the isolation requirements can be met, and two sets of multiple-input multiple-output (MIMO) antennas (two antennas each) or one set of four MIMO antennas can be implemented to achieve better MIMO performance. For the wireless local area network, two sets of MIMO antennas (two antennas each) or one set of four MIMO antennas are also implemented. The antenna module of the embodiments of the present invention can be applied to a variety of different MIMO application combinations, and can also achieve the effects of multi-antenna integration and reduced occupied space, and has high industrial application value.
Claims
1. A fifth generation mobile communication antenna module, arranged in a notebook computer, characterized in that: include: A first antenna group, comprising a first main antenna, a first sub-antenna and a first auxiliary antenna disposed on a first substrate, wherein the first sub-antenna is disposed on the left side of the first main antenna, and the first auxiliary antenna is located between the first main antenna and the first sub-antenna; as well as a second antenna group, disposed on the left side of the first antenna group, comprising a second main antenna, a second sub-antenna and a second auxiliary antenna disposed on a second substrate, wherein the second sub-antenna is disposed on the right side of the second main antenna, and the second auxiliary antenna is located between the second main antenna and the second sub-antenna; The operating frequency ranges of the first main antenna and the second main antenna complement each other and jointly cover the long-term evolution technology low frequency; the first secondary antenna and the first auxiliary antenna are jointly a first wireless local area network antenna group; the second secondary antenna and the second auxiliary antenna are jointly a second wireless local area network antenna group.
2. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The operating frequency ranges of the first main antenna and the first secondary antenna both cover the long term evolution technology intermediate frequency and the long term evolution technology high frequency; wherein the operating frequency ranges of the second main antenna and the second secondary antenna both cover the long term evolution technology intermediate frequency and the long term evolution technology high frequency; wherein the frequency range of the long term evolution technology low frequency is 617MHz to 960MHz, wherein the frequency range of the long term evolution technology intermediate frequency is 1710MHz to 2690MHz, and the frequency range of the long term evolution technology high frequency is 3400MHz to 3800MHz and 4900MHz to 5925MHz.
3. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The first main antenna and the second main antenna are long term evolution technology multiple-input multiple-output antennas.
4. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The first wireless local area network antenna group and the second wireless local area network antenna group are both multiple-input multiple-output antennas.
5. The fifth generation mobile communication antenna module according to claim 4, characterized in that: The first wireless local area network antenna group and the second wireless local area network antenna group are together a group of four-input and four-output antennas.
6. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The operating frequency bands of the first sub-antenna, the first auxiliary antenna, the second sub-antenna and the second auxiliary antenna include 2.4 GHz and 5 GHz frequency bands.
7. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The first substrate has a first end and a second end opposite to each other; wherein the first main antenna is close to the first end and has a first radiating part and a second radiating part, wherein the first radiating part has a first feeding end, and the second radiating part has a first grounding end, wherein the first feeding end is not in contact with the first feed line and constitutes a coupled feeding, the first grounding end is connected to the ground, and the second radiating part is coupled to the first radiating part; wherein the first secondary antenna is close to the second end and has a third radiating part and a fourth radiating part, wherein the third radiating part has a second feeding end, and the fourth radiating part has a second grounding end, wherein the second feeding end is not in contact with the second feed line and constitutes a coupled feeding, the second grounding end is connected to the ground, and the fourth radiating part is coupled to the third radiating part; wherein the first auxiliary antenna has a third feeding end, and the third feeding end is not in contact with the third feed line and constitutes a coupled feeding.
8. The fifth generation mobile communication antenna module according to claim 7, characterized in that: The second substrate has a third end and a fourth end opposite to each other; wherein the second main antenna is close to the third end and has a fifth radiating portion and a sixth radiating portion, wherein the fifth radiating portion has a fourth feeding end, and the sixth radiating portion has a third grounding end, wherein the fourth feeding end is not in contact with the fourth feed line and constitutes a coupled feeding, the third grounding end is connected to the ground, and the sixth radiating portion is coupled to the fifth radiating portion; wherein the second secondary antenna is close to the fourth end and has a seventh radiating portion and an eighth radiating portion, wherein the seventh radiating portion has a fifth feeding end, and the eighth radiating portion has a fourth grounding end, wherein the fifth feeding end is not in contact with the fifth feed line and constitutes a coupled feeding, the fourth grounding end is connected to the ground, and the eighth radiating portion is coupled to the seventh radiating portion; wherein the second auxiliary antenna has a sixth feeding end, and the sixth feeding end is not in contact with the sixth feed line and constitutes a coupled feeding.
9. The fifth generation mobile communication antenna module according to claim 1, characterized in that: The first radiating portion is located between the first ground end of the second radiating portion and the first auxiliary antenna; wherein the second radiating portion has a first extending end segment, and the first extending end segment is located between the first radiating portion and the first auxiliary antenna, so as to improve the isolation between the first main antenna and the first auxiliary antenna; The fifth radiating portion is located between the third ground end of the sixth radiating portion and the second auxiliary antenna; the sixth radiating portion has a second extended end segment, and the second extended end segment is located between the fifth radiating portion and the second auxiliary antenna, so as to improve the isolation between the second main antenna and the second auxiliary antenna; Wherein, the second feeder and the third feeder are both connected to a first grounding conductor, the first grounding conductor has a first slot, wherein the connection between the second grounding end and the first grounding conductor is arranged on the right side of the first slot, and the connection between the first grounding isolation portion of the first auxiliary antenna and the first grounding conductor is arranged on the left side of the first slot, so as to improve the isolation between the first secondary antenna and the first auxiliary antenna; Among them, the fifth feed line and the sixth feed line are both connected to the second grounding conductor, and the second grounding conductor has a second slot, wherein the connection between the fourth grounding end and the second grounding conductor is arranged on the right side of the second slot, and the connection between the second grounding isolation part of the second auxiliary antenna and the second grounding conductor is arranged on the left side of the second slot, so as to improve the isolation between the second sub-antenna and the second auxiliary antenna.
10. The fifth generation mobile communication antenna module according to claim 9, characterized in that: The invention comprises a first control circuit and a second control circuit, which are used to increase the block where the working frequencies of the first main antenna and the second main antenna overlap; wherein the first control circuit has a first control part coupled to the first extension segment, and the first control part and the first extension segment are not connected to each other; wherein the second control circuit has a second control part coupled to the second extension segment, and the second control part and the second extension segment are not connected to each other.