CN101752677A - Antenna connecting circuit and relevant equipment and device - Google Patents

Antenna connecting circuit and relevant equipment and device Download PDF

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Publication number
CN101752677A
CN101752677A CN200910247080A CN200910247080A CN101752677A CN 101752677 A CN101752677 A CN 101752677A CN 200910247080 A CN200910247080 A CN 200910247080A CN 200910247080 A CN200910247080 A CN 200910247080A CN 101752677 A CN101752677 A CN 101752677A
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China
Prior art keywords
matching network
external antenna
built
aerial
branch road
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Pending
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CN200910247080A
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Chinese (zh)
Inventor
邱丹
侯猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Shenzhen Co Ltd
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Shenzhen Huawei Communication Technologies Co Ltd
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Publication date
Application filed by Shenzhen Huawei Communication Technologies Co Ltd filed Critical Shenzhen Huawei Communication Technologies Co Ltd
Priority to CN200910247080A priority Critical patent/CN101752677A/en
Publication of CN101752677A publication Critical patent/CN101752677A/en
Pending legal-status Critical Current

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Abstract

The embodiment of the invention discloses an antenna connecting circuit and relevant equipment and a device. The antenna connecting circuit comprises an internal antenna branch and an external antenna branch which are connected to a radio-frequency channel, wherein the internal antenna branch comprises an internal antenna and a first matching network connected with the internal antenna, and the first matching network is used for eliminating the effect of the external antenna branch on the internal antenna under the working condition; and the external antenna branch comprises an external antenna connector and a second matching network connected with the external antenna connector, and the second matching network is used for eliminating the effect of the internal antenna branch on the working of the external antenna when an external antenna connector is connected with the external antenna. The scheme of the embodiment of the invention utilizes the matching network to design the antenna connecting circuit, abandons the traditional idea that the antenna connecting circuit is designed by a controllable switch, can relatively reduce manufacturing cost and the realizing complexity, also facilitates the avoiding of system resource consumption, and at the same time reduces the size of the product.

Description

Antenna connecting circuit and relevant apparatus and equipment
Technical field
The present invention relates to communication technical field, be specifically related to a kind of antenna connecting circuit, wireless signal transceiver, terminal equipment and wireless access network equipment.
Background technology
At present, most terminal equipment all is to use built-in aerial, and section terminating equipment wherein (for example fixed station, focus access terminal etc.) all can provide the external antenna interface.Terminal equipment can use external antenna in the place of dtr signal, so that obtain to receive preferably launch mass.
If installing terminal equipment has built-in aerial, the external antenna interface also is provided simultaneously, then after external antenna is gone up in the terminal equipment connection, just need to consider how to handle original built-in aerial.
The antenna connecting circuit of prior art can be as shown in Figure 1, mainly be to utilize control signal control gate-controlled switch to disconnect closure, select to use built-in aerial or external antenna, promptly when external antenna is gone up in connection, disconnect being connected of built-in aerial and radio-frequency channel, allow external antenna independently work.
In research and practice process to prior art, the present inventor finds, has used gate-controlled switch in the existing antenna connecting circuit, makes the circuit relative complex, and gate-controlled switch is somewhat expensive usually, is unfavorable for reducing manufacturing cost; Need come the disconnection closure of control switch by program, be unfavorable for reducing the complexity of realization; And need take control signal wire few in number, consume limited system resource.
Summary of the invention
The embodiment of the invention provides antenna connecting circuit and relevant apparatus and equipment, can reduce manufacturing cost and implementation complexity relatively, and helps avoiding consume system resources.
For solving the problems of the technologies described above, the embodiment of the invention provides following technical scheme:
A kind of antenna connecting circuit comprises:
Be connected to the built-in aerial branch road and the external antenna branch road of radio-frequency channel;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: eliminate the influence of built-in aerial branch road to external antenna work when external antenna connector and second matching network that is connected with the external antenna connector, described second matching network are used on external antenna connector connects external antenna.
A kind of wireless signal transceiver comprises: antenna connecting circuit,
Antenna connecting circuit comprises: the built-in aerial branch road and the external antenna branch road that are connected to the radio-frequency channel;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
A kind of terminal equipment comprises: radio-frequency module and the antenna connecting circuit that is connected with radio-frequency module;
Antenna connecting circuit comprises: built-in aerial branch road and external antenna branch road;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
A kind of wireless access network equipment comprises: radio-frequency module and the antenna connecting circuit that is connected with radio-frequency module;
Antenna connecting circuit comprises: built-in aerial branch road and external antenna branch road;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
As seen from the above technical solution, the embodiment of the invention is utilized matching network designing antenna connecting circuit, abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention and technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment and the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of antenna connecting circuit schematic diagram of prior art;
Fig. 2 is a kind of antenna connecting circuit that the embodiment of the invention provides;
Fig. 3-a is a kind of matching network schematic diagram that the embodiment of the invention provides;
Fig. 3-b is the another kind of matching network schematic diagram that the embodiment of the invention provides;
Fig. 3-c is the another kind of matching network schematic diagram that the embodiment of the invention provides;
A kind of wireless signal transceiver schematic diagram that Fig. 4 embodiment of the invention provides;
Fig. 5 is a kind of terminal equipment schematic diagram that the embodiment of the invention provides;
Fig. 6 is a kind of wireless access network equipment schematic diagram that the embodiment of the invention provides.
Embodiment
The embodiment of the invention provides antenna connecting circuit and relevant apparatus and equipment, can reduce manufacturing cost and implementation complexity relatively, and helps avoiding consume system resources.
For make goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, but not whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of antenna connecting circuit, and a kind of antenna connecting circuit 200 referring to Fig. 2, the embodiment of the invention can comprise:
Be connected to the built-in aerial branch road 210 and the external antenna branch road 220 of radio-frequency channel;
Wherein, built-in aerial branch road 210 can comprise: built-in aerial 212 and first matching network 212 that is connected with built-in aerial 211, wherein, first matching network 212 is used to eliminate the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road;
External antenna branch road 220 can comprise: external antenna connector 221 and with the external antenna connector
221 second matching networks 222 that connect, wherein, second matching network 222 is used for when the external antenna connector
221 connect when going up external antenna, eliminate the influence of 210 pairs of external antenna work of built-in aerial branch road.
Wherein, an end of first matching network 212 is connected with built-in aerial 211, and the other end can directly be connected with the radio-frequency channel; One end of second matching network 222 is connected with an end of external antenna connector 221, and the other end can directly be connected with the radio-frequency channel.The radio-frequency channel can be connected to radio-frequency module, and radio-frequency module can carry out radio frequency processing to the wireless receiving and dispatching signal.
Under a kind of application scenarios, the other end of external antenna connector 221 does not connect external antenna when signal is better, built-in aerial 211 work, this moment, first matching network 212 can be eliminated the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road; When dtr signal, the user can be as required can connect external antenna at the other end of external antenna connector 221, and by external antenna work, this moment, second matching network 222 can be eliminated the influence of 210 pairs of external antenna work of built-in aerial branch road.
Certainly, built-in aerial branch road 210 and external antenna branch road 220 also comprise many radio frequency leads, can connect by the radio frequency lead between the circuit element.
Can be according to actual needs, design first matching network 212 and second matching network 222, the inner topology structure example of first matching network 212 and/or second matching network 222 is as can be shown in Fig. 3-a, Fig. 3-b or Fig. 3-c, specifically can realize eliminating the function of another branch road influence by adjusting the size of electric capacity and/or inductance.
Matching network shown in Fig. 3-a is " π " type matching network, comprising: inductance L 1, capacitor C 1 and capacitor C 2, and wherein, an end (C1-a) of capacitor C 1 and an end (L1-a) of inductance L 1 are connected, the other end of capacitor C 1 (C1-b) ground connection; One end (C2-b) of capacitor C 2 and the other end (L1-b) of inductance L 1 are connected, the other end of capacitor C 2 (C2-a) ground connection; The two ends of inductance L 1 can be connected with outer member.For example, if this matching network is first matching network 212, then the two ends of inductance L 1 can be connected with built-in aerial 211 with the radio-frequency channel respectively; If this matching network is second matching network 222, then the two ends of inductance L 1 can be connected with external antenna connector 221 with the radio-frequency channel respectively, by that analogy.
Matching network shown in Fig. 3-b is the T-shape matching network, comprise: inductance L 2, capacitor C 3 and capacitor C 4, wherein, an end (C4-b) of an end (L2-a) of inductance L 2 and an end (C3-b) of capacitor C 3 and capacitor C 4 is connected, the other end of inductance L 2 (L2-b) ground connection; The other end of capacitor C 3 (C3-a) can be connected with outer member; The other end of capacitor C 4 (C4-a) is connected with outer member, for example, if this matching network is first matching network 212, then the other end of capacitor C 3 (C3-a) can be connected with radio-frequency channel (or built-in aerial 211), and the other end of capacitor C 4 (C4-a) can be connected with built-in aerial 211 (or radio-frequency channel); If this matching network is second matching network 222, then the other end of capacitor C 3 (C3-a) can be connected with radio-frequency channel (or external antenna connector 221); The other end of capacitor C 4 (C4-a) can be connected with external antenna connector 221 (or radio-frequency channel).
The matching network that Fig. 3-c shows is " L " type matching network, comprising: inductance L 3 and capacitor C 5, and wherein, an end (L3-a) of inductance L 3 and an end (C5-b) of capacitor C 5 are connected, the other end of inductance L 3 (L3-a) ground connection; One end (C5-a) of capacitor C 5 can be connected with outer member; The other end of capacitor C 5 (C5-b) can connect with outer member.For example, if this matching network is first matching network 212, then the two ends of capacitor C 5 can be connected with built-in aerial 211 with the radio-frequency channel respectively; If this matching network is second matching network 222, then the two ends of capacitor C 5 can be connected with external antenna connector 221 with the radio-frequency channel respectively, by that analogy.
Need explanation, above-mentioned matching network shown in Fig. 3-a, Fig. 3-b and Fig. 3-c is only for illustrating, as is known to the person skilled in the art, above-mentioned electric capacity of mentioning and inductance all can be replaced mutually, that is to say that above-mentioned electric capacity can replace with inductance, vice versa; On the other hand, the matching network that also can select other topological structure is as first matching network 212 and/or second matching network 222, as long as can obtain to eliminate the effect of another branch road influence, the present invention does not do qualification.
What need to introduce is, the price of a matching network is far below the price of a gate-controlled switch, and the structure of matching network is also simple than gate-controlled switch, and volume is also little a lot; Simultaneously, matching network does not need the control of control signal, does not just need to take limited control signal wire yet.
Be appreciated that present embodiment antenna connecting circuit 200 can be installed on for example terminal equipment, multiple needs such as wireless access network equipment carry out not doing qualification herein in the equipment of wireless signal transmitting-receiving.
Therefore, the embodiment of the invention is utilized matching network designing antenna connecting circuit, has abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
Further, the embodiment of the invention also provides a kind of wireless signal transceiver, and referring to Fig. 4, a kind of wireless signal transceiver 400 of the embodiment of the invention can comprise: antenna connecting circuit 200.
With reference to the description in the foregoing description, present embodiment antenna connecting circuit 200 can comprise: the built-in aerial branch road 210 and the external antenna branch road 220 that are connected to the radio-frequency channel;
Wherein, built-in aerial branch road 210 can comprise: built-in aerial 211 and first matching network 212 that is connected with built-in aerial 211, wherein, first matching network 212 can be eliminated the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road;
External antenna branch road 220 can comprise: external antenna connector 221 and second matching network 222 that is connected with external antenna connector 221, wherein, second matching network 222 is used for eliminating the influence of 210 pairs of external antenna work of built-in aerial branch road when external antenna is gone up in 221 connections of external antenna connector.
Wherein, an end of first matching network 212 is connected with built-in aerial 211, and the other end can be connected with the radio-frequency channel; One end of second matching network 222 is connected with an end of external antenna connector 221, and the other end can be connected with the radio-frequency channel.The radio-frequency channel can be connected to radio-frequency module, and radio-frequency module can carry out radio frequency processing to the wireless receiving and dispatching signal.
Can be according to actual needs, design first matching network 212 and second matching network 222, the inner topology structure example of first matching network 212 and/or second matching network 222 is as can be shown in Fig. 3-a, Fig. 3-b or Fig. 3-c, specifically can be by adjusting the size of electric capacity and/or inductance, realize that it eliminates the function of another branch road influence.
Under a kind of application scenarios, the other end of external antenna connector 221 does not connect external antenna when signal is better, built-in aerial 211 work, this moment, first matching network 212 can be eliminated the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road; When dtr signal, the user can be as required can connect external antenna at the other end of external antenna connector 221, and by external antenna work, this moment, second matching network 222 can be eliminated the influence of 210 pairs of external antenna work of built-in aerial branch road.
Be appreciated that present embodiment wireless signal transceiver 400 can be installed on for example terminal equipment, multiple needs such as wireless access network equipment carry out not doing qualification herein in the equipment of wireless signal transmitting-receiving.
Present embodiment wireless signal transceiver 400 utilizes matching network designing antenna connecting circuit, abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
Further, present embodiment wireless signal transceiver 400 is applied in the various communication apparatus, can simplifies design, the reduction manufacturing cost of this communication apparatus.
Further, the embodiment of the invention also provides a kind of terminal equipment, and referring to Fig. 5, a kind of terminal equipment 500 of the embodiment of the invention can comprise: radio-frequency module 510 and the antenna connecting circuit 200 that is connected with radio-frequency module 510.Radio-frequency module 510 can carry out radio frequency processing to the wireless receiving and dispatching signal, and radio-frequency module 510 can be connected by the radio-frequency channel with antenna connecting circuit 200.
With reference to the description in the foregoing description, present embodiment antenna connecting circuit 200 can comprise: the built-in aerial branch road 210 and the external antenna branch road 220 that are connected to the radio-frequency channel;
Wherein, built-in aerial branch road 210 can comprise: built-in aerial 211 and first matching network 212 that is connected with built-in aerial 211, wherein, first matching network 212 is used to eliminate the shadow of 220 pairs of in running order built-in aerials 211 of external antenna branch road;
External antenna branch road 220 can comprise: external antenna connector 221 and second matching network 222 that is connected with external antenna connector 221, wherein, second matching network 222 is used for eliminating the influence of 210 pairs of external antenna work of built-in aerial branch road when external antenna is gone up in 221 connections of external antenna connector.
Wherein, an end of first matching network 212 is connected with built-in aerial 211, and the other end can be connected with radio-frequency module 510; One end of second matching network 222 is connected with an end of external antenna connector 221, and the other end can be connected with radio-frequency module 510.
Can be according to actual needs, design first matching network 212 and second matching network 222, the inner topology structure example of first matching network 212 and/or second matching network 222 is as can be shown in Fig. 3-a, Fig. 3-b or Fig. 3-c, specifically can be by adjusting the size of electric capacity and/or inductance, realize that it eliminates the function of another branch road influence.
Under a kind of application scenarios, the other end of external antenna connector 221 does not connect external antenna when signal is better, built-in aerial 211 work, this moment, first matching network 212 can be eliminated the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road; When dtr signal, the user can be as required can connect external antenna at the other end of external antenna connector 221, and by external antenna work, this moment, second matching network 222 can be eliminated the influence of 210 pairs of external antenna work of built-in aerial branch road.
Need to prove that present embodiment terminal equipment 500 can be mobile phone, data card, personal digital assistant, portable equipment or the like, do not do qualification herein.
Present embodiment terminal equipment 500 is selected the antenna connecting circuit based on the matching network design for use, abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
Further, the embodiment of the invention also provides a kind of wireless access network equipment, and referring to Fig. 6, the wireless access network equipment 600 of the embodiment of the invention can comprise: radio-frequency module 610 and the antenna connecting circuit 200 that is connected with radio-frequency module 610.Radio-frequency module 610 can carry out radio frequency processing to the wireless receiving and dispatching signal, and radio-frequency module 610 can be connected by the radio-frequency channel with antenna connecting circuit 200.
With reference to the description in the foregoing description, present embodiment antenna connecting circuit 200 can comprise: the built-in aerial branch road 210 and the external antenna branch road 220 that are connected to the radio-frequency channel;
Wherein, built-in aerial branch road 210 can comprise: built-in aerial 211 and first matching network 212 that is connected with built-in aerial 211, wherein, first matching network 212 is used to eliminate the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road;
External antenna branch road 220 can comprise: external antenna connector 221 and second matching network 222 that is connected with external antenna connector 221, wherein, second matching network 222 is used for eliminating the influence of 210 pairs of external antenna work of built-in aerial branch road when external antenna is gone up in 221 connections of external antenna connector.
Wherein, an end of first matching network 212 is connected with built-in aerial 211, and the other end can be connected with radio-frequency module 510; One end of second matching network 222 is connected with an end of external antenna connector 221, and the other end can be connected with radio-frequency module 510.
Can be according to actual needs, design first matching network 212 and second matching network 222, the inner topology structure example of first matching network 212 and/or second matching network 222 is as can be shown in Fig. 3-a, Fig. 3-b or Fig. 3-c, specifically can be by adjusting the size of electric capacity and/or inductance, realize that it eliminates the function of another branch road influence.
Under a kind of application scenarios, the other end of external antenna connector 221 does not connect external antenna when signal is better, built-in aerial 211 work, this moment, first matching network 212 can be eliminated the influence of 220 pairs of in running order built-in aerials 211 of external antenna branch road; When dtr signal, the user can be as required can connect external antenna at the other end of external antenna connector 221, and by external antenna work, this moment, second matching network 222 can be eliminated the influence of 210 pairs of external antenna work of built-in aerial branch road.
Need to prove that present embodiment wireless access network equipment 600 for example can be base station, base station controller an or the like wireless access network equipment, does not do qualification herein.
Present embodiment wireless access network equipment 600 is selected the antenna connecting circuit based on the matching network design for use, abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
To sum up, the embodiment of the invention is utilized matching network designing antenna connecting circuit, has abandoned the traditional idea that uses gate-controlled switch designing antenna connecting circuit, not only can reduce manufacturing cost and implementation complexity relatively, and help avoiding consume system resources, can reduce small product size simultaneously.
Further, will be applied in the various communication apparatus, can simplify design, the reduction manufacturing cost of this communication apparatus based on the antenna connecting circuit that utilizes the matching network design of the embodiment of the invention.
More than antenna connecting circuit, wireless signal transceiver, terminal equipment and wireless access network equipment that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention.

Claims (10)

1. an antenna connecting circuit is characterized in that, comprising:
Be connected to the built-in aerial branch road and the external antenna branch road of radio-frequency channel;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: eliminate the influence of built-in aerial branch road to external antenna work when external antenna connector and second matching network that is connected with the external antenna connector, described second matching network are used on external antenna connector connects external antenna.
2. antenna connecting circuit according to claim 1 is characterized in that,
One end of described first matching network is connected with built-in aerial, and the other end is connected with the radio-frequency channel; One end of described second matching network is connected with an end of external antenna connector, and the other end is connected with the radio-frequency channel.
3. antenna connecting circuit according to claim 2 is characterized in that,
Described first matching network is the wherein a kind of of " π " type matching network, T-shape matching network, " L " type matching network.
4. antenna connecting circuit according to claim 2 is characterized in that,
Described second matching network is the wherein a kind of of " π " type matching network, T-shape matching network, " L " type matching network.
5. a wireless signal transceiver is characterized in that, comprising: antenna connecting circuit,
Antenna connecting circuit comprises: the built-in aerial branch road and the external antenna branch road that are connected to the radio-frequency channel;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
6. wireless signal transceiver according to claim 5 is characterized in that,
One end of described first matching network is connected with built-in aerial, and the other end is connected with the radio-frequency channel; One end of described second matching network is connected with an end of external antenna connector, and the other end is connected with the radio-frequency channel.
7. a terminal equipment is characterized in that, comprising: radio-frequency module and the antenna connecting circuit that is connected with radio-frequency module;
Antenna connecting circuit comprises: built-in aerial branch road and external antenna branch road;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
8. terminal equipment according to claim 7 is characterized in that,
One end of described first matching network is connected with built-in aerial, and the other end is connected with radio-frequency module; One end of described second matching network is connected with an end of external antenna connector, and the other end is connected with radio-frequency module.
9. a wireless access network equipment is characterized in that, comprising: radio-frequency module and the antenna connecting circuit that is connected with radio-frequency module;
Antenna connecting circuit comprises: built-in aerial branch road and external antenna branch road;
Wherein, the built-in aerial branch road comprises: built-in aerial and first matching network that is connected with built-in aerial, and described first matching network is used to eliminate the influence of external antenna branch road in running order built-in aerial;
The external antenna branch road comprises: external antenna connector and second matching network that is connected with the external antenna connector, described second matching network is used for eliminating the influence of built-in aerial branch road to external antenna work when external antenna is gone up in the connection of external antenna connector.
10. wireless access network equipment according to claim 9 is characterized in that,
One end of described first matching network is connected with built-in aerial, and the other end is connected with radio-frequency module; One end of described second matching network is connected with an end of external antenna connector, and the other end is connected with radio-frequency module.
CN200910247080A 2009-12-25 2009-12-25 Antenna connecting circuit and relevant equipment and device Pending CN101752677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN200910247080A CN101752677A (en) 2009-12-25 2009-12-25 Antenna connecting circuit and relevant equipment and device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102096794A (en) * 2011-02-15 2011-06-15 深圳市杰瑞特科技有限公司 Device, method and system for reading animal electronic identity tag
CN102545951A (en) * 2012-01-11 2012-07-04 无锡市云感科技股份有限公司 Wireless remote meter with double antennae
CN104538749A (en) * 2014-12-30 2015-04-22 深圳市共进电子股份有限公司 External antenna, impedance matching network parameter debugging method of external antenna and antenna
CN104570007A (en) * 2013-10-22 2015-04-29 深圳市伊爱高新技术开发有限公司 Communication antenna anti-damage circuit of vehicle-mounted GNSS (global navigation satellite system) terminal
CN109302205A (en) * 2017-07-25 2019-02-01 中兴通讯股份有限公司 A kind of multi-functional pico RRU and implementation method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102096794A (en) * 2011-02-15 2011-06-15 深圳市杰瑞特科技有限公司 Device, method and system for reading animal electronic identity tag
CN102096794B (en) * 2011-02-15 2013-12-18 深圳市杰瑞特科技有限公司 Device, method and system for reading animal electronic identity tag
CN102545951A (en) * 2012-01-11 2012-07-04 无锡市云感科技股份有限公司 Wireless remote meter with double antennae
CN102545951B (en) * 2012-01-11 2013-12-11 无锡市云感科技股份有限公司 Wireless remote meter with double antennae
CN104570007A (en) * 2013-10-22 2015-04-29 深圳市伊爱高新技术开发有限公司 Communication antenna anti-damage circuit of vehicle-mounted GNSS (global navigation satellite system) terminal
CN104538749A (en) * 2014-12-30 2015-04-22 深圳市共进电子股份有限公司 External antenna, impedance matching network parameter debugging method of external antenna and antenna
CN104538749B (en) * 2014-12-30 2018-06-05 深圳市共进电子股份有限公司 The adjustment method of external antenna and its impedance matching network parameter, antenna
CN109302205A (en) * 2017-07-25 2019-02-01 中兴通讯股份有限公司 A kind of multi-functional pico RRU and implementation method

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