CN216958492U - Antenna assembly and terminal equipment - Google Patents
Antenna assembly and terminal equipment Download PDFInfo
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- CN216958492U CN216958492U CN202220588262.4U CN202220588262U CN216958492U CN 216958492 U CN216958492 U CN 216958492U CN 202220588262 U CN202220588262 U CN 202220588262U CN 216958492 U CN216958492 U CN 216958492U
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Abstract
The present disclosure relates to an antenna assembly and a terminal device, the antenna assembly including: the antenna comprises a first radiating arm, a second radiating arm and a first tuning circuit, wherein a gap is formed between the first radiating arm and the second radiating arm; the first tuning circuit is used for tuning low-frequency signals, one end of the first tuning circuit is connected with one end, close to the gap, of the first radiating arm, and the other end of the first tuning circuit is grounded; the first tuning circuit comprises four branches connected in parallel, wherein each branch is provided with at least one inductor. The antenna assembly can solve the problem that the performance of a low-frequency antenna in an ENDC state is unstable, so that the 5G transmission speed is increased, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an antenna assembly and a terminal device.
Background
In recent years, with the rapid development of terminal device communication, an antenna in a terminal device plays an important role in wireless communication as a carrier for receiving and transmitting signals.
In order to reduce the interference of adjacent co-frequency antennas, a head-to-head form is usually adopted for the low-frequency antenna and the medium-high frequency antenna, and the low-frequency antenna and the medium-high frequency antenna adopting the head-to-head form also have a problem, frequency points of a three-quarter mode of the low-frequency antenna can fall in a frequency band of the medium-high frequency antenna, an efficiency recess is formed in the frequency band of the medium-high frequency antenna, and the medium-high frequency antenna performance in an endec (EUTRA NR Dual-Connectivity, namely a networking mode that LTE is used as a "master base station" MCG and NR is used as an "auxiliary base station" SCG is influenced, so that the purpose of continuous coverage is achieved, and smooth transition from 4G to 5G) state is realized, and the transmission speed and the user experience of 5G are influenced.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides an antenna assembly and a terminal device to at least solve the problem of unstable performance of a medium-high frequency antenna in an ENDC state in a related art. The technical scheme of the disclosure is as follows:
according to a first aspect of the present disclosure, there is provided an antenna assembly, comprising: the antenna comprises a first radiating arm, a second radiating arm and a first tuning circuit, wherein a gap is arranged between the first radiating arm and the second radiating arm;
the first tuning circuit is used for tuning a low-frequency signal, one end of the first tuning circuit is connected with one end, close to the gap, of the first radiating arm, and the other end of the first tuning circuit is grounded;
the first tuning circuit comprises four branches connected in parallel, wherein each branch is provided with at least one inductor.
In the present disclosure, the four branches include a first branch, a second branch, a third branch and a fourth branch, one end of the first branch, one end of the second branch and one end of the third branch are connected to one end of the fourth branch to serve as one end of the first tuning circuit, and the other end of the first branch, the other end of the second branch and the other end of the third branch are connected to the other end of the fourth branch to serve as the other end of the first tuning circuit;
the first branch circuit comprises a first inductor and a first single-pole single-throw switch, one end of the first inductor is used as one end of the first branch circuit, the other end of the first inductor is connected with one end of the first single-pole single-throw switch, and the other end of the first single-pole single-throw switch is used as the other end of the first branch circuit;
the second branch circuit comprises a second inductor and a second single-pole single-throw switch, one end of the second inductor is used as one end of the second branch circuit, the other end of the second inductor is connected with one end of the second single-pole single-throw switch, and the other end of the second single-pole single-throw switch is used as the other end of the second main circuit;
the third branch comprises a first capacitor, a third inductor and a third single-pole single-throw switch, one end of the first capacitor is used as one end of the third branch, the other end of the first capacitor is connected with one end of the third inductor, the other end of the third inductor is connected with one end of the third single-pole single-throw switch, and the other end of the third single-pole single-throw switch is used as the other end of the third branch;
the fourth branch comprises a fourth inductor and a fourth single-pole single-throw switch, one end of the fourth inductor is used as one end of the fourth branch, the other end of the fourth inductor is connected with one end of the fourth single-pole single-throw switch, and the other end of the fourth single-pole single-throw switch is used as the other end of the fourth branch.
In this disclosure, the antenna assembly further includes:
and the first matching circuit is used for adjusting resonance generated by the first radiating arm, one end of the first matching circuit is connected with the first feed source, and the other end of the first matching circuit is connected with one end of the first tuning circuit.
In the present disclosure, the first matching circuit includes a second capacitor, a third capacitor, and a fifth inductor;
one end of the second capacitor is connected with one end of the fifth inductor to serve as one end of the first matching circuit, the other end of the second capacitor is connected with one end of the third capacitor after being connected with the other end of the fifth inductor, and the other end of the third capacitor serves as the other end of the first matching circuit.
In this disclosure, the above antenna assembly further includes:
and the second matching circuit is used for adjusting resonance generated by the first radiating arm, one end of the second matching circuit is connected with the first feed source and one end of the first matching circuit, and the other end of the second matching circuit is grounded.
In the present disclosure, the second matching circuit includes a fourth capacitance;
one end of the fourth capacitor is used as one end of the second matching circuit, and the other end of the fourth capacitor is used as the other end of the second matching circuit.
In this disclosure, the above antenna assembly further includes:
the second tuning circuit is used for tuning an intermediate frequency signal or a high frequency signal, one end of the second tuning circuit is connected with one end, close to the gap, of the second radiation arm, and the other end of the second tuning circuit is grounded;
the second tuning circuit comprises a single-pole four-throw switch, a fifth capacitor, a sixth inductor, a seventh inductor and an eighth inductor, wherein a moving end of the single-pole four-throw switch is used as one end of the second tuning circuit, a first fixed end of the single-pole four-throw switch is connected with one end of the sixth inductor, a second fixed end of the single-pole four-throw switch is connected with one end of the seventh inductor, a third fixed end of the single-pole four-throw switch is connected with one end of the fifth capacitor, a fourth fixed end of the single-pole four-throw switch is connected with one end of the eighth inductor, and the other end of the sixth inductor, the other end of the seventh inductor and the other end of the fifth capacitor are connected with the other end of the eighth inductor and are used as the other end of the second tuning circuit.
In this disclosure, the above antenna assembly further includes:
and the third matching circuit is used for adjusting resonance generated by the second radiating arm, one end of the third matching circuit is connected with the second feed source, and the other end of the third matching circuit is connected with one end of the second tuning circuit.
In the present disclosure, the third matching circuit includes a sixth capacitor, a seventh capacitor, and a ninth inductor;
one end of the sixth capacitor is connected to one end of the ninth inductor and serves as one end of the third matching circuit, the other end of the sixth capacitor is grounded, the other end of the ninth inductor is connected to one end of the seventh capacitor, and the other end of the seventh capacitor serves as the other end of the third matching circuit.
In this disclosure, the above antenna assembly further includes:
and the fourth matching circuit is used for adjusting resonance generated by the second radiating arm, one end of the fourth matching circuit is connected with one end of the second tuning circuit, and the other end of the fourth matching circuit is grounded.
In the present disclosure, the fourth matching circuit includes a tenth inductance;
one end of the tenth inductor is used as one end of the fourth matching circuit, and the other end of the tenth inductor is used as the other end of the fourth matching circuit.
In the present disclosure, the first radiating arm includes a first portion and a second portion, and the second radiating arm includes a third portion and a fourth portion;
one end of the first part is connected with the metal floor, the other end of the first part is connected with one end of the second part, the gap is arranged between the other end of the second part and one end of the third part, the other end of the third part is connected with one end of the fourth part, and the other end of the fourth part is connected with the metal floor.
In the present disclosure, the inductance value of the first inductor ranges from 68nh ± 5 nh;
the range of the inductance value of the second inductor is 75nh +/-5 nh;
the inductance value of the third inductor ranges from 30nh +/-5 nh;
the capacitance value of the first capacitor is in the range of 0.5pf +/-0.3 pf;
the inductance value of the fourth inductor ranges from 56nh ± 5 nh.
According to a second aspect of the present disclosure, a terminal device is proposed, which comprises the antenna assembly described above.
The technical scheme provided by the disclosure at least brings the following beneficial effects:
through this antenna module of this disclosure, this antenna module includes first radiation arm, second radiation arm and first tuned circuit, wherein, be provided with the gap between first radiation arm and the second radiation arm, first tuned circuit is used for tuning the low frequency signal, and the one end of first tuned circuit is connected with the one end that first radiation arm is close to the gap, and the other end of first tuned circuit ground connection, wherein, first tuned circuit includes four parallelly connected branches, wherein, all is provided with at least one inductance on every branch. Therefore, the antenna assembly can solve the problem that the performance of a low-frequency antenna in an ENDC state is unstable, so that the 5G transmission speed is increased, and the user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
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 disclosure and are not to be construed as limiting the disclosure.
Fig. 1 is a circuit diagram of an antenna assembly of an embodiment of the present disclosure;
FIG. 2 is a standing wave schematic diagram of an antenna assembly according to one embodiment of the present disclosure;
fig. 3 is a schematic diagram of an efficiency of an antenna assembly according to one embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
An antenna assembly and a terminal device of the embodiments of the present disclosure are described below with reference to the drawings.
In recent years, with the rapid development of terminal device communication, an antenna in a terminal device plays an important role in wireless communication as a carrier for receiving and transmitting signals. With the limitation of complete machine stacking and the requirement of MHB 4 × 4MIMO (MHB 4 × 4MIMO is a base station 4 antenna, and simultaneously, a user provides 4 antennas, so that 1 pair of 1 and 4 parallel data streams which are parallel at the same time are formed to provide multiplexing gain for a single user), the antenna layout is compact, and the antenna in the form occupies too much longitudinal space of a main board, so that the capacity of a battery can be compressed, and the competitiveness of the complete machine is reduced.
In order to reduce the interference of adjacent co-frequency antennas, a head-to-head mode is usually adopted for the low-frequency antenna and the medium-high frequency antenna, on one hand, the utilization rate of a metal frame is improved, and the longitudinal layout space of a mainboard is reduced, on the other hand, the isolation between the adjacent antennas is improved, so that when the low-frequency antenna and the medium-high frequency antenna work simultaneously, the two antennas do not interfere with each other, the best state can be provided, and therefore, in the ENDC state, the low-frequency antenna and the medium-high frequency antenna can be kept in the best state.
However, the low-frequency antenna and the medium-high frequency antenna adopting the head-to-head type also have a problem that the frequency point of the three-quarter mode of the low-frequency antenna falls within the frequency band of the medium-high frequency antenna, an efficiency depression is formed in the frequency band of the medium-high frequency antenna, the performance of the medium-high frequency antenna in the ENDC state is influenced, and the transmission speed and the user experience of 5G are influenced.
Therefore, the antenna assembly can solve the problem that the performance of the medium-high frequency antenna of the low-frequency antenna is unstable in the ENDC state, so that the stability of the medium-high frequency antenna is improved in the ENDC state, the transmission speed of 5G is increased, and the user experience is improved.
Fig. 1 is a circuit diagram of an antenna assembly of an embodiment of the present disclosure.
As shown in fig. 1, an antenna assembly of an embodiment of the present disclosure includes: a first radiating arm T1, a second radiating arm T2 and a first tuning circuit 10, wherein a gap F is provided between the first radiating arm T1 and the second radiating arm T2.
The first tuning circuit 10 is configured to tune a low-frequency signal, one end of the first tuning circuit 10 is connected to one end of the first radiating arm T1 close to the gap F, and the other end of the first tuning circuit 10 is grounded; the first tuning circuit 10 includes four branches connected in parallel, where each branch is provided with at least one inductor.
The four branches include a first branch, a second branch, a third branch and a fourth branch, wherein one end of the first branch, one end of the second branch and one end of the third branch are connected with one end of the fourth branch to serve as one end of the first tuning circuit 10, and the other end of the first branch, the other end of the second branch and the other end of the third branch are connected with the other end of the fourth branch to serve as the other end of the first tuning circuit 10.
As shown in fig. 1, the first branch is formed by connecting a first inductor L1 and a first single-pole single-throw switch K1 in series, wherein one end of the first inductor L1 serves as one end of the first branch, the other end of the first inductor L1 is connected to one end of a first single-pole single-throw switch K1, and the other end of the first single-pole single-throw switch K1 serves as the other end of the first branch; the second branch circuit is formed by connecting a second inductor L2 and a second single-pole single-throw switch K2 in series, wherein one end of the second inductor L2 is used as one end of the second branch circuit, the other end of the second inductor L2 is connected with one end of a second single-pole single-throw switch K2, and the other end of the second single-pole single-throw switch K2 is used as the other end of the second main circuit; the third branch circuit is formed by connecting a first capacitor C1, a third inductor L3 and a third single-pole single-throw switch K3 in series, one end of the first capacitor C1 is used as one end of the third branch circuit, the other end of the first capacitor C1 is connected with one end of a third inductor L3, the other end of the third inductor L3 is connected with one end of the third single-pole single-throw switch K3, and the other end of the third single-pole single-throw switch K3 is used as the other end of the third branch circuit; the fourth branch is formed by connecting a fourth inductor L4 and a fourth single-pole single-throw switch K4 in series, one end of a fourth inductor L4 is used as one end of the fourth branch, the other end of the fourth inductor L4 is connected with one end of a fourth single-pole single-throw switch K4, and the other end of a fourth single-pole single-throw switch K4 is used as the other end of the fourth branch.
The range of the inductance value of the first inductor L1 is 68nh +/-5 nh; the inductance value of the second inductor L2 ranges from 75nh ± 5 nh; the inductance value of the third inductor L3 ranges from 30nh ± 5 nh; the capacitance value of the first capacitor C1 ranges from 0.5pf +/-0.3 pf; the inductance value of the fourth inductor L4 ranges from 56nh ± 5 nh.
As shown in fig. 1, the antenna assembly further includes: and a first matching circuit for adjusting resonance generated by the first radiating arm T1, one end of the first matching circuit being connected to the first feed S1, and the other end of the first matching circuit being connected to one end of the first tuning circuit 10. The first matching circuit comprises a second capacitor C2, a third capacitor C3 and a fifth inductor L5; one end of the second capacitor C2 is connected to one end of the fifth inductor L5 as one end of the first matching circuit, the other end of the second capacitor C2 is connected to the other end of the fifth inductor L5 and then connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is used as the other end of the first matching circuit.
The capacitance value range of the second capacitor C2 is 0.7pf +/-0.3 pf; the capacitance value of the third capacitor C3 ranges from 0.8pf +/-0.3 pf; the inductance value of the fifth inductor L5 ranges from 4.5nh ± 3 nh.
As shown in fig. 1, the antenna assembly further includes: and the second matching circuit is used for adjusting resonance generated by the first radiating arm T1, one end of the second matching circuit is connected with the first feed source S1 and one end of the first matching circuit, and the other end of the second matching circuit is grounded. Wherein the second matching circuit comprises a fourth capacitance C4; one end of the fourth capacitor C4 is used as one end of the second matching circuit, and the other end of the fourth capacitor C4 is used as the other end of the second matching circuit.
The capacitance value of the fourth capacitor C4 ranges from 0.5pf ± 0.3 pf.
As shown in fig. 1, the antenna assembly further includes: a second tuning circuit 20 for tuning the intermediate frequency signal or the high frequency signal, wherein one end of the second tuning circuit 20 is connected to one end of the second radiating arm T2 close to the gap F, and the other end of the second tuning circuit 20 is grounded; the second tuning circuit 20 includes a single-pole four-throw switch K5, a fifth capacitor C5, a sixth inductor L6, a seventh inductor L7, and an eighth inductor L8, wherein a moving end of the single-pole four-throw switch K5 serves as one end of the second tuning circuit 20, a first fixed end of the single-pole four-throw switch K5 is connected to one end of the sixth inductor L6, a second fixed end of the single-pole four-throw switch K5 is connected to one end of the seventh inductor L7, a third fixed end of the single-pole four-throw switch K5 is connected to one end of the fifth capacitor C5, a fourth fixed end of the single-pole four-throw switch K5 is connected to one end of the eighth inductor L8, the other end of the sixth inductor L6, the other end of the seventh inductor L7, and the other end of the fifth capacitor C5 are connected to the other end of the eighth inductor L8, and serve as the other end of the second tuning circuit 20.
The capacitance value range of the fifth capacitor C5 is 0.3pf +/-0.1 pf; the inductance value of the sixth inductor L6 ranges from 4nh ± 1.5 nh; the inductance value of the seventh inductor L7 ranges from 8.3nh ± 3 nh; the inductance value of the eighth inductor L8 ranges from 0.8nh ± 0.3 nh.
As shown in fig. 1, the antenna assembly further includes: and a third matching circuit for adjusting resonance generated by the second radiating arm T2, one end of the third matching circuit being connected to the second feed S2, and the other end of the third matching circuit being connected to one end of the second tuning circuit 20. The third matching circuit comprises a sixth capacitor C6, a seventh capacitor C7 and a ninth inductor L9; one end of the sixth capacitor C6 is connected to one end of the ninth inductor L9 as one end of the third matching circuit, the other end of the sixth capacitor C6 is grounded, the other end of the ninth inductor L9 is connected to one end of the seventh capacitor C7, and the other end of the seventh capacitor C7 is connected to the other end of the third matching circuit.
The capacitance value range of the sixth capacitor C6 is 1.3pf +/-0.2 pf; the capacitance value of the seventh capacitor C7 ranges from 0.3pf ± 0.1 pf; the inductance value of the ninth inductor L9 ranges from 10 ± 3 nh.
As shown in fig. 1, the antenna assembly further includes: and a fourth matching circuit for adjusting resonance generated by the second radiating arm T2, one end of the fourth matching circuit being connected to one end of the second tuning circuit 20, and the other end of the fourth matching circuit being grounded. Wherein the fourth matching circuit comprises a tenth inductance L10; one end of the tenth inductor L10 serves as one end of the fourth matching circuit, and the other end of the tenth inductor L10 serves as the other end of the fourth matching circuit.
The inductance value of the tenth inductor L10 ranges from 5nh ± 2 nh.
As shown in fig. 1, the first radiation arm T1 includes a first portion and a second portion, and the second radiation arm T2 includes a third portion and a fourth portion; one end of the first part is connected with the metal floor, the other end of the first part is connected with one end of the second part, a gap F is formed between the other end of the second part and one end of the third part, the other end of the third part is connected with one end of the fourth part, and the other end of the fourth part is connected with the metal floor. That is, the first and second radiation arms T1 and T2 are disposed head to head.
In the embodiment, when the three single-pole single-throw switch K3 is closed and the first single-pole single-throw switch K1, the second single-pole single-throw switch K2 and the fourth single-pole single-throw switch K4 are opened, the frequency band of B28(703MHZ-803MHZ) can be tuned; when the first single-pole single-throw switch K1, the second single-pole single-throw switch K2, the third single-pole single-throw switch K3 and the fourth single-pole single-throw switch K4 are controlled to be switched off, the frequency band can be tuned to B20(791MHZ-862 MHZ); when the first single-pole single-throw switch K1 and the second single-pole single-throw switch K2 are controlled to be closed and the third single-pole single-throw switch K3 and the fourth single-pole single-throw switch K4 are controlled to be opened, the frequency band can be tuned to B8(880MHZ-960 MHZ); when the single-pole four-throw switch K5 is controlled to be turned off, the frequency band can be tuned to the B3(1710MHZ-1880MHZ) + N41(2496MHZ-2690 MHZ).
In the embodiment of the disclosure, an LC resonant network (a third inductor L3 and a first capacitor C1 connected in series with a third branch) is adopted, so as to meet the requirement of the performance of the low-frequency antenna and the medium-high frequency antenna, and specifically, a B28(703MHZ-803MHZ) frequency band can be equivalent to a capacitor in a closed state of a third single-pole single-throw switch K3, and an N41(2496MHZ-2690MHZ) frequency band can be equivalent to an inductor in a closed state of a third single-pole single-throw switch K3.
Fig. 2 is a standing wave schematic diagram of an antenna assembly according to one embodiment of the present disclosure. Wherein, the reference numeral 1 in fig. 2 represents a standing wave point with an antenna frequency of 1.71 and an amplitude of-7.399665 in the B28(703MHZ-803MHZ) frequency band; reference numeral 2 denotes a standing wave point of an antenna frequency of 1.88 and an amplitude of-1.756451 in the B28(703MHZ-803MHZ) band; reference numeral 3 denotes a standing wave point having an amplitude of-4.988628 at an antenna frequency of 2.496 in the B28(703MHZ-803MHZ) band; reference numeral 4 denotes a standing-wave point of an amplitude of-3.391053 at an antenna frequency of 2.66 in the B8(703MHZ-803MHZ) band.
Fig. 3 is a schematic illustration of the efficiency of an antenna assembly according to one embodiment of the present disclosure. Wherein, the reference numeral 1 in fig. 3 represents a frequency point of which the antenna frequency is 1.74 and the amplitude is-4.42616 in the B8(880MHZ-960MHZ) frequency band; the label 2 is a frequency point with the antenna frequency of 1.74 and the amplitude of-4.280116 under the frequency band of B20(791MHZ-862 MHZ); the label 3 is a frequency point with the antenna frequency of 2.58 and the amplitude of-3.177985 under the frequency band of B20(791MHZ-862 MHZ); the frequency point of the antenna with the frequency of 2.58 and the amplitude of-3.105447 in the frequency band of B28(703MHZ-803MHZ) is labeled 4.
The experimental data are synthesized, and when the inductance value range of the third inductor L3 is 30nh +/-5 nh, the capacitance value range of the first capacitor C1 is 0.5pf +/-0.3 pf, the low-frequency antenna can meet the performance requirement in the ENDC state of the medium-high frequency antenna and cannot form efficiency depression in the frequency band of the medium-high frequency antenna, the low-frequency antenna is equivalent to a capacitor with the capacitance value range of 0.75pf +/-0.05 pf in the B28(703MHZ-803MHZ) state, and the low-frequency antenna is equivalent to an inductor with the inductance value range of 22nh +/-1 nh in the N41(2496MHZ-2690MHZ) state. Meanwhile, the matching form of the B8(880MHZ-960MHZ) frequency band is optimized, the capacitance connected with the second single-pole single-throw switch K2 in the related technology is changed into inductance, and the influence brought by the capacitance is eliminated through the form of inductance combination. Moreover, the N41 frequency band of the scheme disclosed by the invention has no influence of clutter, so that the efficiency in the whole frequency band can be obviously improved in efficiency, and the ENDC state of the low-frequency antenna and the medium-high frequency antenna can meet the performance requirement.
It should be noted that, in an embodiment of the present disclosure, as shown in fig. 1, the antenna assembly further includes an eighth capacitor C8 and an eleventh inductor L11. One end of the eighth capacitor C8 is connected to one end of the first radiating arm T1 close to the slot F, and the other end of the eighth capacitor C8 is connected to one end of the first tuning circuit 10; one end of the eleventh inductor L11 is connected to one end of the second radiating arm T2 near the slot F, and the other end of the eleventh inductor L11 is connected to one end of the second tuning circuit 20.
Wherein, the inductance value of the eighth capacitor C8 is in the range of 8pf ± 3 pf; the capacitance value of the eleventh inductor L11 ranges from 0.8nh ± 0.3 nh.
The antenna module of the embodiment of the disclosure can place the data distribution control point on the 4G base station for dual-connection distribution when the coverage of the 5G core network base station is not complete, so that no requirement is made on the coverage of the 5G core network, the coverage advantage of the 4G base station can be utilized, and the application scene of popularizing 5G can be quickly covered. Because the antenna module of the embodiment of the present disclosure supports both 5G and 4G dual connectivity, the traffic gain brought is large, the internet speed is greatly improved, and the user experience is good. Therefore, the terminal equipment using the antenna assembly disclosed by the invention can support ENDC, so that the terminal equipment can download the film simultaneously when using a 4G network to make a call, and the speed can be greatly improved.
In summary, through the antenna module of this disclosure, this antenna module includes first radiation arm, second radiation arm and first tuned circuit, wherein, be provided with the gap between first radiation arm and the second radiation arm, first tuned circuit is used for tuning the low frequency signal, and the one end of first tuned circuit is connected with the one end that first radiation arm is close to the gap, and the other end of first tuned circuit is ground, and wherein, first tuned circuit includes four parallelly connected branches, wherein, all is provided with at least one inductance on every branch. Therefore, the antenna assembly can solve the problem that the performance of a low-frequency antenna in an ENDC state is unstable, so that the 5G transmission speed is increased, and the user experience is improved.
Based on the above embodiment, the present disclosure also provides a terminal device.
The terminal equipment of the embodiment of the disclosure comprises the antenna assembly.
The terminal device of the embodiment of the disclosure can be a mobile phone, a tablet computer and the like.
The terminal device of the embodiment of the disclosure, the antenna assembly can solve the problem that the performance of the low-frequency antenna is unstable in the ENDC state, so that the transmission speed of 5G is increased, and the user experience is improved.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
through this antenna module of this disclosure, this antenna module includes first radiation arm, second radiation arm and first tuned circuit, wherein, be provided with the gap between first radiation arm and the second radiation arm, first tuned circuit is used for tuning the low frequency signal, and the one end of first tuned circuit is connected with the one end that first radiation arm is close to the gap, and the other end of first tuned circuit ground connection, wherein, first tuned circuit includes four parallelly connected branches, wherein, all is provided with at least one inductance on every branch. Therefore, the antenna assembly can solve the problem that the performance of a low-frequency antenna in an ENDC state is unstable, so that the 5G transmission speed is increased, and the user experience is improved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements 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 appended claims.
Claims (14)
1. An antenna assembly, comprising: the antenna comprises a first radiating arm, a second radiating arm and a first tuning circuit, wherein a gap is arranged between the first radiating arm and the second radiating arm;
the first tuning circuit is used for tuning a low-frequency signal, one end of the first tuning circuit is connected with one end, close to the gap, of the first radiating arm, and the other end of the first tuning circuit is grounded;
the first tuning circuit comprises four branches connected in parallel, wherein each branch is provided with at least one inductor.
2. The antenna assembly according to claim 1, wherein the four branches include a first branch, a second branch, a third branch, and a fourth branch, one end of the first branch, one end of the second branch, and one end of the third branch are connected to one end of the fourth branch as one end of the first tuning circuit, and the other end of the first branch, the other end of the second branch, and the other end of the third branch are connected to the other end of the fourth branch as the other end of the first tuning circuit;
the first branch circuit comprises a first inductor and a first single-pole single-throw switch, one end of the first inductor is used as one end of the first branch circuit, the other end of the first inductor is connected with one end of the first single-pole single-throw switch, and the other end of the first single-pole single-throw switch is used as the other end of the first branch circuit;
the second branch circuit comprises a second inductor and a second single-pole single-throw switch, one end of the second inductor is used as one end of the second branch circuit, the other end of the second inductor is connected with one end of the second single-pole single-throw switch, and the other end of the second single-pole single-throw switch is used as the other end of the second branch circuit;
the third branch circuit comprises a first capacitor, a third inductor and a third single-pole single-throw switch, one end of the first capacitor is used as one end of the third branch circuit, the other end of the first capacitor is connected with one end of the third inductor, the other end of the third inductor is connected with one end of the third single-pole single-throw switch, and the other end of the third single-pole single-throw switch is used as the other end of the third branch circuit;
the fourth branch comprises a fourth inductor and a fourth single-pole single-throw switch, one end of the fourth inductor is used as one end of the fourth branch, the other end of the fourth inductor is connected with one end of the fourth single-pole single-throw switch, and the other end of the fourth single-pole single-throw switch is used as the other end of the fourth branch.
3. The antenna assembly of claim 1, further comprising:
and the first matching circuit is used for adjusting resonance generated by the first radiating arm, one end of the first matching circuit is connected with the first feed source, and the other end of the first matching circuit is connected with one end of the first tuning circuit.
4. The antenna assembly of claim 3, wherein the first matching circuit comprises a second capacitor, a third capacitor, and a fifth inductor;
one end of the second capacitor is connected with one end of the fifth inductor to serve as one end of the first matching circuit, the other end of the second capacitor is connected with one end of the third capacitor after being connected with the other end of the fifth inductor, and the other end of the third capacitor serves as the other end of the first matching circuit.
5. The antenna assembly of claim 3 or 4, further comprising:
and the second matching circuit is used for adjusting resonance generated by the first radiating arm, one end of the second matching circuit is connected with the first feed source and one end of the first matching circuit, and the other end of the second matching circuit is grounded.
6. The antenna assembly of claim 5, wherein the second matching circuit comprises a fourth capacitance;
one end of the fourth capacitor is used as one end of the second matching circuit, and the other end of the fourth capacitor is used as the other end of the second matching circuit.
7. The antenna assembly of claim 1, further comprising:
the second tuning circuit is used for tuning an intermediate frequency signal or a high frequency signal, one end of the second tuning circuit is connected with one end, close to the gap, of the second radiation arm, and the other end of the second tuning circuit is grounded;
the second tuning circuit comprises a single-pole four-throw switch, a fifth capacitor, a sixth inductor, a seventh inductor and an eighth inductor, wherein a moving end of the single-pole four-throw switch is used as one end of the second tuning circuit, a first fixed end of the single-pole four-throw switch is connected with one end of the sixth inductor, a second fixed end of the single-pole four-throw switch is connected with one end of the seventh inductor, a third fixed end of the single-pole four-throw switch is connected with one end of the fifth capacitor, a fourth fixed end of the single-pole four-throw switch is connected with one end of the eighth inductor, and the other end of the sixth inductor, the other end of the seventh inductor and the other end of the fifth capacitor are connected with the other end of the eighth inductor and are used as the other end of the second tuning circuit.
8. The antenna assembly of claim 7, further comprising:
and the third matching circuit is used for adjusting resonance generated by the second radiating arm, one end of the third matching circuit is connected with the second feed source, and the other end of the third matching circuit is connected with one end of the second tuning circuit.
9. The antenna assembly of claim 8, wherein the third matching circuit comprises a sixth capacitor, a seventh capacitor, and a ninth inductor;
one end of the sixth capacitor is connected to one end of the ninth inductor and serves as one end of the third matching circuit, the other end of the sixth capacitor is grounded, the other end of the ninth inductor is connected to one end of the seventh capacitor, and the other end of the seventh capacitor serves as the other end of the third matching circuit.
10. The antenna assembly of claim 7, further comprising:
and the fourth matching circuit is used for adjusting resonance generated by the second radiating arm, one end of the fourth matching circuit is connected with one end of the second tuning circuit, and the other end of the fourth matching circuit is grounded.
11. The antenna assembly of claim 10, wherein the fourth matching circuit comprises a tenth inductance;
one end of the tenth inductor is used as one end of the fourth matching circuit, and the other end of the tenth inductor is used as the other end of the fourth matching circuit.
12. The antenna assembly of claim 1, wherein the first radiating arm includes a first portion and a second portion, and the second radiating arm includes a third portion and a fourth portion;
one end of the first part is connected with the metal floor, the other end of the first part is connected with one end of the second part, the gap is arranged between the other end of the second part and one end of the third part, the other end of the third part is connected with one end of the fourth part, and the other end of the fourth part is connected with the metal floor.
13. The antenna assembly of claim 2, wherein,
the range of the inductance value of the first inductor is 68nh +/-5 nh;
the range of the inductance value of the second inductor is 75nh +/-5 nh;
the inductance value of the third inductor is within a range of 30nh +/-5 nh;
the capacitance value of the first capacitor is in the range of 0.5pf +/-0.3 pf;
the inductance value of the fourth inductor ranges from 56nh ± 5 nh.
14. A terminal device, characterized in that it comprises an antenna component according to any one of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220588262.4U CN216958492U (en) | 2022-03-16 | 2022-03-16 | Antenna assembly and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220588262.4U CN216958492U (en) | 2022-03-16 | 2022-03-16 | Antenna assembly and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216958492U true CN216958492U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220588262.4U Active CN216958492U (en) | 2022-03-16 | 2022-03-16 | Antenna assembly and terminal equipment |
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| Country | Link |
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| CN (1) | CN216958492U (en) |
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- 2022-03-16 CN CN202220588262.4U patent/CN216958492U/en active Active
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