CN102891697A - Terminal equipment - Google Patents
Terminal equipment Download PDFInfo
- Publication number
- CN102891697A CN102891697A CN2011102079457A CN201110207945A CN102891697A CN 102891697 A CN102891697 A CN 102891697A CN 2011102079457 A CN2011102079457 A CN 2011102079457A CN 201110207945 A CN201110207945 A CN 201110207945A CN 102891697 A CN102891697 A CN 102891697A
- Authority
- CN
- China
- Prior art keywords
- circuit
- antenna
- signal
- terminal equipment
- day line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides terminal equipment which is used for solving the problems that the volume and manufacture cost of the terminal equipment are increased due to the arrangement of an independent built-in antenna for every basic configuration function. The terminal equipment comprises a circuit board, a signal separating circuit and an antenna circuit, wherein the circuit board is provided with antennas, at least two parallel antenna circuits respectively connected with the antennas through the signal separating circuit, the signal separating circuit which is used for separating a receiving signal with a preset frequency range out of all receiving signals, and the antenna circuit which is connected with the signal separating circuit and is used for processing the receiving signal with the preset frequency range separated by the signal separating circuit and/or providing the antenna with sending signal which is sent by the antenna. According to the technical scheme, the multifunction of the antenna is realized, the function of at least two antenna circuits is realized with one antenna, the occupied space of the antenna in the terminal equipment is reduced, the volume of the terminal equipment is reduced, and the manufacture cost of the terminal equipment is lowered.
Description
Technical field
The present invention relates to the terminal technology field, particularly a kind of terminal equipment.
Background technology
Development along with science and technology, FM (Frequency Modulation, FM receiver), GPS (Global Positioning System, global positioning system), BT (blue tooth, bluetooth) and WIFI (wireless fidelity, WLAN (wireless local area network)) etc. become the basic configuration function of existing terminal equipment (such as mobile phone, personal digital assistant etc.).
For each basic configuration function, existing terminal equipment all correspondingly disposes a built-in aerial to carry out data transfer with network side in inside.If the basic configuration function that terminal equipment possesses is more, then the built-in aerial on the terminal equipment is just more, these built-in aerials not only can the larger inner space of occupied terminal equipment, but also can have a strong impact on the external styling of terminal equipment, increase the volume of terminal equipment, increase the manufacturing cost of terminal equipment.Such as for the FM function, existing terminal equipment can arrange built-in FM antenna, but built-in FM antenna independently is arranged on terminal equipment inside, the larger space of meeting occupied terminal device interior, thereby affected the external styling of terminal equipment, and the manufacturing cost that built-in FM antenna also can increase terminal equipment independently has been set.
As seen, existing terminal equipment need to be each basic configuration function setting built-in aerial independently, and these built-in aerials have taken the larger inner space of terminal equipment, have increased the volume of terminal equipment, have increased the manufacturing cost of terminal equipment.
Summary of the invention
The embodiment of the invention provides a kind of terminal equipment, is independently built-in aerial of each basic configuration function setting in order to solve existing terminal equipment, has increased the volume of terminal equipment, has increased the problem of the manufacturing cost of terminal equipment.
The embodiment of the invention provides a kind of terminal equipment, comprises circuit board, is provided with on the described circuit board:
Antenna;
At least two antenna circuits in parallel are connected with described antenna by a demultiplexing circuit respectively;
Described demultiplexing circuit, all that are used for from described antenna receive the reception signal that signal is isolated a default frequency range;
The antenna circuit that is connected with described demultiplexing circuit provides for the treatment of the reception signal of the isolated described default frequency range of described demultiplexing circuit and/or to described antenna to transmit, and sends described transmitting by described antenna.
Wherein, described at least two antenna circuits comprise first day line circuit and second day line circuit;
The parasitic element lower margin of described antenna is connected with the ground of described circuit board;
Described first day line circuit is connected with the feedback pin of described antenna by the first signal split circuit, described first signal split circuit first receives signal for separating of what go out default frequency range corresponding to described first day line circuit, and exports described the first reception signal to described first day line circuit;
Described second day line circuit is connected with the feedback pin of described antenna by the secondary signal split circuit, described secondary signal split circuit second receives signal for separating of what go out default frequency range corresponding to described second day line circuit, and exports described the second reception signal to described second day line circuit.
Wherein, preferably, the parasitic element lower margin of described antenna is connected with the ground of described circuit board by antenna parasitic element lower margin contact chip;
The feedback pin of described antenna by antenna feed pin contact chip and described first signal split circuit be connected the secondary signal split circuit and be connected.
In addition, described at least two antenna circuits also comprise third antenna circuit and the 4th antenna circuit;
Described third antenna circuit, described the 4th antenna circuit are connected with described secondary signal split circuit by switching circuit respectively;
Wherein, described secondary signal split circuit, also the 3rd receive the 4th of default frequency range corresponding to signal and the 4th antenna circuit and receive signal for separating of what go out default frequency range corresponding to described third antenna circuit, and will the described the 3rd receive signal and described the 4th reception signal exports described switching circuit to;
Described switching circuit is used for sending the described the 3rd to described third antenna circuit and receives signal and/or the first switching signal, sends the described the 4th to described the 4th antenna circuit and receives signal and/or second switch signal.
Wherein, described secondary signal split circuit by duplexer and described second day line circuit be connected switching circuit and be connected.
Wherein, described antenna is with the first antenna of lower margin or not with the second antenna of lower margin;
When described antenna is described the first antenna, for described second day line circuit, also be provided with frequency selection circuit on the described circuit board, one end is connected with the ground of described circuit board, the other end is connected with the lower margin of described the first antenna by antenna lower margin contact chip, described frequency selection circuit be used for selecting described the second reception signal by and restrain described the first reception signal and pass through;
When described antenna is described the first antenna, for described first day line circuit, the lower margin of described the first antenna and the isolation of the ground of described circuit board.
Preferably, described first day line circuit is the FM receiver chip;
Described second day line circuit is the global positioning system circuit;
Described third antenna circuit is Bluetooth circuit;
Described the 4th antenna circuit is the WLAN (wireless local area network) circuit.
In addition, be provided with low noise amplifier between described first signal split circuit and the described FM receiver chip.
Described terminal equipment also can comprise:
External FM receiver antenna is connected with described antenna by radio-frequency transmission line.
In the terminal equipment that the embodiment of the invention provides, because in parallel and be connected with antenna by a demultiplexing circuit respectively between at least two antenna circuits, therefore, the reception signal of antenna can send in any antenna circuit in two antenna circuits process at least, and at least two antenna circuits also can transmit by antenna, thereby realized the multifunctional multiplexing of antenna, guaranteed to realize with an antenna function of at least two antenna circuits, reduced antenna taking up room in terminal equipment inside, reduce the volume of terminal equipment, reduced the manufacturing cost of terminal equipment.
Description of drawings
Figure 1A is the structural representation of a kind of circuit board of terminal equipment in the embodiment of the invention;
Figure 1B is the structural representation of the circuit board of the second terminal equipment in the embodiment of the invention;
Fig. 1 C is the structural representation of the circuit board of the second terminal equipment in the embodiment of the invention;
Fig. 1 D is the structural representation of the circuit board of the second terminal equipment in the embodiment of the invention;
Fig. 1 E is the structural representation of the circuit board of the second terminal equipment in the embodiment of the invention;
Fig. 2 is the structural representation of the circuit board of terminal equipment in the embodiment of the invention one;
Fig. 3 is the structural representation of the circuit board of terminal equipment in the embodiment of the invention two;
Fig. 4 is the concrete structure schematic diagram of the circuit board of terminal equipment in the embodiment of the invention two;
Fig. 5 is the another kind of structural representation of the circuit board of terminal equipment in the embodiment of the invention two.
Embodiment
For technical problem, technical scheme and advantage that the embodiment of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Shown in Figure 1A, the embodiment of the invention provides a kind of terminal equipment, comprises circuit board, is provided with on the circuit board:
Antenna;
At least two antenna circuits in parallel are connected with antenna by a demultiplexing circuit respectively;
Above-mentioned demultiplexing circuit, all that are used for from antenna receive the reception signal that signal is isolated a default frequency range;
The antenna circuit that is connected with above-mentioned demultiplexing circuit provides for the treatment of the reception signal of the isolated default frequency range of above-mentioned demultiplexing circuit and/or to antenna to transmit, and sends this by antenna and transmits.
In the terminal equipment that the embodiment of the invention provides, because in parallel and be connected with antenna by a demultiplexing circuit respectively between at least two antenna circuits, therefore, the reception signal of antenna can send in any antenna circuit in two antenna circuits process at least, and at least two antenna circuits also can transmit by antenna, thereby realized the multifunctional multiplexing of antenna, guaranteed to realize with an antenna function of at least two antenna circuits, reduced antenna taking up room in terminal equipment inside, reduce the volume of terminal equipment, reduced the manufacturing cost of terminal equipment.
As shown in Figure 1B, above-mentioned at least two antenna circuits can comprise first day line circuit and second day line circuit; Wherein, the parasitic element lower margin of antenna is connected with the ground (GND) of circuit board;
The feedback pin of antenna is connected with the first day line circuit by the first signal split circuit, and the first signal split circuit is for separating of the first reception signal that goes out default frequency range corresponding to first day line circuit, and exports the first reception signal to the first day line circuit;
The feedback pin of antenna is connected with the second day line circuit by the secondary signal split circuit, and the secondary signal split circuit is for separating of the second reception signal that goes out default frequency range corresponding to second day line circuit, and exports the second reception signal to the second day line circuit.
In the terminal equipment shown in Figure 1B, the reception signal of antenna enters first signal split circuit and secondary signal split circuit, wherein, the first signal split circuit is therefrom isolated first of default frequency range corresponding to first day line circuit and is received signal, and receive signal with first and export the first day line circuit to and process, thereby realize the function of first day line circuit; The secondary signal split circuit is therefrom isolated second of default frequency range corresponding to second day line circuit and is received signal, and receives signal with second and export the second day line circuit to and process, thereby realizes the function of second day line circuit.
Preferably, the parasitic element lower margin of antenna can be connected with the ground of circuit board by antenna parasitic element lower margin contact chip (being arranged on the circuit board), and certainly, the parasitic element lower margin of antenna also can be connected with the ground of circuit board by other suitable interface unit; The feedback pin of antenna can be connected with the secondary signal split circuit with the first signal split circuit by antenna feed pin contact chip (being arranged on the circuit board), and certainly, the feedback pin of antenna also can be connected with the ground of circuit board by other suitable interface unit.
In addition, shown in Fig. 1 C, above-mentioned at least two antenna circuits also can comprise third antenna circuit and the 4th antenna circuit; Third antenna circuit, the 4th antenna circuit can be connected with the secondary signal split circuit by switching circuit respectively;
Wherein, the secondary signal split circuit, also the 3rd receive the 4th of default frequency range corresponding to signal and the 4th antenna circuit and receive signal for separating of what go out default frequency range corresponding to third antenna circuit, and receive signal and the 4th with the 3rd and receive signal and export switching circuit to;
Switching circuit is used for sending the 3rd to the third antenna circuit and receives signal and/or the first switching signal, sends the 4th to the 4th antenna circuit and receives signal and/or second switch signal.
In the terminal equipment shown in Fig. 1 C, the reception signal of antenna is after entering the secondary signal split circuit, the secondary signal split circuit also can be isolated the 3rd of default frequency range corresponding to third antenna circuit and receive the 4th of default frequency range corresponding to signal and the 4th antenna circuit and receive signal, and receives signal and the 4th with the 3rd and receive signal and export switching circuit to; Then, switching circuit receives signal with the 3rd and sends to the third antenna processing of circuit, thereby realizes the function of third antenna circuit, and switching circuit receives signal with the 4th and sends to the processing of the 4th antenna circuit, thereby realizes the function of the 4th antenna circuit.
Preferably, shown in Fig. 1 D, above-mentioned secondary signal split circuit is connected with switching circuit with the second day line circuit by duplexer, duplexer claims again antenna multicoupler, its effect is to advance receiving circuit to faint reception signal coupling, larger transmitting can be fed on the antenna again, and both finish separately the function of oneself and are independent of each other.
Above-mentioned antenna in the embodiment of the invention can be the first antenna with lower margin, not with the second antenna of lower margin or loop aerial etc.; Its technique can be iron plate, flexible printed circuit, pottery, printed circuit board, laser direct forming etc.
Wherein, shown in Fig. 1 E, when antenna is the first antenna, for the second day line circuit, also be provided with in addition frequency selection circuit on the circuit board, one end of frequency selection circuit is connected with the ground of circuit board, the other end is connected with the lower margin of the first antenna by antenna lower margin contact chip, frequency selection circuit be used for selecting the second reception signal by and restrain the first reception signal and pass through; When antenna is the first antenna, for the first day line circuit, the lower margin of the first antenna and the isolation of the ground of circuit board.
Below take the first day line circuit as the FM chip, the second day line circuit as GPS circuit, third antenna circuit as the BT circuit, the 4th antenna circuit as the WIFI circuit as example, the technical scheme that the embodiment of the invention provides is described.
Embodiment one
As shown in Figure 2, take antenna as not with first gps antenna (adding passive antenna etc. such as unipole antenna or one pole) of lower margin as example.Portable terminal comprises circuit board, and on circuit board: the parasitic element lower margin of the first gps antenna is connected with the ground of circuit board by antenna parasitic element lower margin contact chip; The feedback pin of the first gps antenna is connected with the FM demultiplexing circuit with the secondary signal split circuit by antenna feed pin contact chip; The FM demultiplexing circuit is connected (low noise amplifier can further promote the FM performance, and certainly, the FM demultiplexing circuit also can directly be connected with the FM chip) by low noise amplifier with the FM chip; The secondary signal split circuit is connected with the BT/WIFI switching circuit with the GPS circuit by duplexer; The BT/WIFI switching circuit is connected with the WIFI circuit with the BT circuit.
The following describes multiplexing this first gps antenna of this portable terminal and realize the method for several functions:
Realize the FM function: the parasitic element lower margin of the first gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the first gps antenna is connected with FM demultiplexing circuit (can be considered the FM antenna-matching circuit) by antenna feed pin contact chip, therefore, the reception signal of the first gps antenna can be sent to the FM demultiplexing circuit, and the FM demultiplexing circuit is therefrom isolated FM signal (frequency range of FM signal is 65MHz-108MHz); Because the FM demultiplexing circuit is connected (with the isolation of GPS circuit) with the FM chip, therefore, the FM demultiplexing circuit is sent to the FM chip with the FM signal, processes the FM signal by the FM chip, thereby has realized that the first gps antenna is operated in the FM antenna condition again;
When the FM chip transmits need to send to network side the time, the FM chip can will transmit by the path between itself and the first gps antenna and be sent to the first gps antenna, and will be transmitted by the first gps antenna sends to network side.
Realize the GPS function: the parasitic element lower margin of the first gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the first gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the first gps antenna can be sent to the secondary signal split circuit, the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal (the gps signal frequency is 1575.42MHz, and the frequency range of BT signal and WIFI signal is 2.4GHz-2.48GHz); Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Because duplexer is connected (with the isolation of FM chip) with the GPS circuit, therefore, duplexer can be sent to gps signal the GPS circuit, by GPS processing of circuit gps signal, thereby realized that the normal operation of the first gps antenna is at the gps antenna state again;
Realize the BT function: the parasitic element lower margin of the first gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the first gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the first gps antenna can be sent to the secondary signal split circuit, and the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal; Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Be connected with the BT/WIFI switching circuit owing to duplexer again, therefore, duplexer can be sent to the BT/WIFI switching circuit with BT signal and WIFI signal, then, the BT/WIFI switching circuit can be controlled the BT signal and communicate with the BT circuit, by BT processing of circuit BT signal, thereby realized that the normal operation of the first gps antenna is at the BT antenna condition;
When the BT circuit transmits need to send to network side the time, the BT circuit can will transmit by the path between itself and the first gps antenna and be sent to the first gps antenna, and will be transmitted by the first gps antenna sends to network side.
Realize the WIFI function: the parasitic element lower margin of the first gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the first gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the first gps antenna can be sent to the secondary signal split circuit, and the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal; Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Be connected with the BT/WIFI switching circuit owing to duplexer again, therefore, duplexer can be sent to the BT/WIFI switching circuit with BT signal and WIFI signal, then, the BT/WIFI switching circuit can be controlled the WIFI signal and communicate with the WIFI circuit, by WIFI processing of circuit WIFI signal, thereby realized that the normal operation of the first gps antenna is at the WIFI antenna condition;
When the WIFI circuit transmits need to send to network side the time, the WIFI circuit can will transmit by the path between itself and the first gps antenna and be sent to the first gps antenna, and will be transmitted by the first gps antenna sends to network side.
Embodiment two
As shown in Figure 3, take antenna as with second gps antenna (adding passive antenna etc. such as PIFA antenna or PIFA) of lower margin as example.Portable terminal comprises circuit board, and on circuit board: the parasitic element lower margin of the second gps antenna is connected with the ground of circuit board by antenna parasitic element lower margin contact chip; The feedback pin of the second gps antenna is connected with the FM demultiplexing circuit with the secondary signal split circuit by antenna feed pin contact chip; The FM demultiplexing circuit is connected (the FM demultiplexing circuit also can directly be connected with the FM chip) by low noise amplifier with the FM chip; The secondary signal split circuit is connected with the BT/WIFI switching circuit with the GPS circuit by duplexer; The BT/WIFI switching circuit is connected with the WIFI circuit with the BT circuit.In addition, for GPS function, BT function and WIFI function, also be provided with frequency selection circuit on the circuit board, one end is connected with the ground of circuit board, the other end is connected with the lower margin of the second gps antenna by antenna lower margin contact chip, frequency selection circuit be used for selection gps signal, BT signal and WIFI signal by and supression FM signal pass through; For the FM function, the lower margin of the second gps antenna and the ground of circuit board are in isolation.
The following describes multiplexing this second gps antenna of this portable terminal and realize the method for several functions:
Realize the FM function: the parasitic element lower margin of the second gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; The lower margin of the second gps antenna and the ground of circuit board are in isolation; Because the feedback pin of the second gps antenna is connected with FM demultiplexing circuit (can be considered the FM antenna-matching circuit) by antenna feed pin contact chip, therefore, the reception signal of the second gps antenna can be sent to the FM demultiplexing circuit, and the FM demultiplexing circuit is therefrom isolated the FM signal; Because the FM demultiplexing circuit is connected (with the isolation of GPS circuit) with the FM chip, therefore, the FM demultiplexing circuit is sent to the FM chip with the FM signal, processes the FM signal by the FM chip, thereby has realized that the second gps antenna is operated in the FM antenna condition again;
When the FM chip transmits need to send to network side the time, the FM chip can will transmit by the path between itself and the second gps antenna and be sent to the second gps antenna, and will be transmitted by the second gps antenna sends to network side.
Realize the GPS function: an end of frequency selection circuit is connected with the ground of circuit board, the other end is connected with the lower margin of the second gps antenna by antenna lower margin contact chip; The parasitic element lower margin of the second gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the second gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the second gps antenna can be sent to the secondary signal split circuit, and the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal; Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Because duplexer is connected (with the isolation of FM chip) with the GPS circuit, therefore, duplexer can be sent to gps signal the GPS circuit, by GPS processing of circuit gps signal, thereby realized that the normal operation of the second gps antenna is at the gps antenna state again;
Realize the BT function: an end of frequency selection circuit is connected with the ground of circuit board, the other end is connected with the lower margin of the second gps antenna by antenna lower margin contact chip; The parasitic element lower margin of the second gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the second gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the second gps antenna can be sent to the secondary signal split circuit, and the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal; Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Be connected with the BT/WIFI switching circuit owing to duplexer again, therefore, duplexer can be sent to the BT/WIFI switching circuit with BT signal and WIFI signal, then, the BT/WIFI switching circuit can be controlled the BT signal and communicate with the BT circuit, by BT processing of circuit BT signal, thereby realized that the normal operation of the second gps antenna is at the BT antenna condition;
When the BT circuit transmits need to send to network side the time, the BT circuit can will transmit by the path between itself and the second gps antenna and be sent to the second gps antenna, and will be transmitted by the second gps antenna sends to network side.
Realize the WIFI function: an end of frequency selection circuit is connected with the ground of circuit board, the other end is connected with the lower margin of the second gps antenna by antenna lower margin contact chip; The parasitic element lower margin of the second gps antenna directly communicates with the ground of the circuit board that arranges in the terminal equipment by antenna parasitic element lower margin contact chip; Because the feedback pin of the second gps antenna is connected with the secondary signal split circuit by antenna feed pin contact chip, therefore, the reception signal of the second gps antenna can be sent to the secondary signal split circuit, and the secondary signal split circuit is therefrom isolated gps signal, BT signal and WIFI signal; Be connected with duplexer owing to the secondary signal split circuit again, so gps signal, BT signal and WIFI signal all enter into duplexer at this moment; Be connected with the BT/WIFI switching circuit owing to duplexer again, therefore, duplexer can be sent to the BT/WIFI switching circuit with BT signal and WIFI signal, then, the BT/WIFI switching circuit can be controlled the WIFI signal and communicate with the WIFI circuit, by WIFI processing of circuit WIFI signal, thereby realized that the normal operation of the second gps antenna is at the WIFI antenna condition;
When the WIFI circuit transmits need to send to network side the time, the WIFI circuit can will transmit by the path between itself and the second gps antenna and be sent to the second gps antenna, and will be transmitted by the second gps antenna sends to network side.
Fig. 4 has shown the detailed structure view of part of devices among Fig. 3 (or Fig. 2), as shown in Figure 4, the feedback pin of the second gps antenna and passive device (resistance, inductance or electric capacity) 11,12,13,14,15,16,17,18 link to each other, the lower margin of the second gps antenna and passive device (resistance, inductance or electric capacity) 19 link to each other with 20.
Wherein, the FM demultiplexing circuit in passive device 11,12,13 and 14 composition diagrams 3 (or Fig. 2), the secondary signal split circuit in passive device 15,16,17 and 18 composition diagrams 3 (or Fig. 2); Frequency selection circuit in passive device 19 and 20 composition diagrams 3.Passive device can dispose the SMD device of 0402 size, is 1.8pF electric capacity such as passive device 15, and passive device 11 is the 27nH inductance; Passive device 19 is 10pF electric capacity, and passive device 20 is the 270nH inductance; Such configuration circuit can make the second gps antenna realize simultaneously GPS function, FM function, BT function and WIFI function, wherein each passive device can be adjusted according to actual needs, the form of secondary signal split circuit, FM demultiplexing circuit and frequency selection circuit can be diversified, can select and adjust according to actual needs.
In addition, each device of the terminal equipment in above-described embodiment two also can (lack duplexer than Fig. 3 by Fig. 5; Corresponding above-mentioned Fig. 1 C Duo by frequency selection circuit ground connection than Fig. 1 C) shown in the structure connection, can realize equally antenna multiplexed.At this moment, the second gps antenna on circuit board, for the FM function, can also one external FM antenna be set at terminal equipment, the second gps antenna and external FM antenna are linked together by radio-frequency transmission line, and these two antennas can be worked simultaneously, can strengthen the FM performance.Particularly, as shown in Figure 5, interconnective earphone interface and earphone antenna are set on the terminal equipment again, earphone antenna is as external FM antenna, FM demultiplexing circuit, earphone interface and FM chip are linked together work when namely also can realize above-mentioned two antennas without the radio frequency commutation circuit with radio-frequency transmission line 21.
Each device of terminal equipment among the embodiment one also can connect (difference is and will removes the lower margin of the first gps antenna by the part of frequency selection circuit ground connection) by structure shown in Figure 5, can realize equally antenna multiplexed.
Above-described embodiment one and two has been realized the multifunctional multiplexing of an antenna, need to compare for each functional independence arranges built-in aerial with prior art, above-described embodiment one and two has reached the purpose of utilizing an antenna to realize GPS function, FM function, BT function, WIFI function, reduce the volume of terminal equipment, reduced the manufacturing cost of terminal equipment.
Portable terminal in the embodiment of the invention comprises the portable terminals such as 2G, 2.5G, 2.75G, 3G, 3.5G, 4G, can also be simulated television, Digital Television (CMMB, TDMB, DVB/T, DVB/H) etc.Antenna in the embodiment of the invention can be any type of antenna, such as gps antenna, BT antenna, FM antenna, WIFI antenna etc., perhaps with the antenna of lower margin, not with antenna of lower margin etc., specifically can select as required.
The above is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a terminal equipment comprises circuit board, it is characterized in that, is provided with on the described circuit board:
Antenna;
At least two antenna circuits in parallel are connected with described antenna by a demultiplexing circuit respectively;
Described demultiplexing circuit, all that are used for from described antenna receive the reception signal that signal is isolated a default frequency range;
The antenna circuit that is connected with described demultiplexing circuit provides for the treatment of the reception signal of the isolated described default frequency range of described demultiplexing circuit and/or to described antenna to transmit, and sends described transmitting by described antenna.
2. terminal equipment as claimed in claim 1 is characterized in that,
Described at least two antenna circuits comprise first day line circuit and second day line circuit;
The parasitic element lower margin of described antenna is connected with the ground of described circuit board;
Described first day line circuit is connected with the feedback pin of described antenna by the first signal split circuit, described first signal split circuit first receives signal for separating of what go out default frequency range corresponding to described first day line circuit, and exports described the first reception signal to described first day line circuit;
Described second day line circuit is connected with the feedback pin of described antenna by the secondary signal split circuit, described secondary signal split circuit second receives signal for separating of what go out default frequency range corresponding to described second day line circuit, and exports described the second reception signal to described second day line circuit.
3. terminal equipment as claimed in claim 2 is characterized in that,
The parasitic element lower margin of described antenna is connected with the ground of described circuit board by antenna parasitic element lower margin contact chip;
The feedback pin of described antenna by antenna feed pin contact chip and described first signal split circuit be connected the secondary signal split circuit and be connected.
4. terminal equipment as claimed in claim 2 is characterized in that,
Described at least two antenna circuits also comprise third antenna circuit and the 4th antenna circuit;
Described third antenna circuit, described the 4th antenna circuit are connected with described secondary signal split circuit by switching circuit respectively;
Wherein, described secondary signal split circuit, also the 3rd receive the 4th of default frequency range corresponding to signal and the 4th antenna circuit and receive signal for separating of what go out default frequency range corresponding to described third antenna circuit, and will the described the 3rd receive signal and described the 4th reception signal exports described switching circuit to;
Described switching circuit is used for sending the described the 3rd to described third antenna circuit and receives signal and/or the first switching signal, sends the described the 4th to described the 4th antenna circuit and receives signal and/or second switch signal.
5. terminal equipment as claimed in claim 4 is characterized in that,
Described secondary signal split circuit by duplexer and described second day line circuit be connected switching circuit and be connected.
6. such as arbitrary described terminal equipment among the claim 2-5, it is characterized in that,
Described antenna is with the first antenna of lower margin or not with the second antenna of lower margin;
When described antenna is described the first antenna, for described second day line circuit, also be provided with frequency selection circuit on the described circuit board, one end is connected with the ground of described circuit board, the other end is connected with the lower margin of described the first antenna by antenna lower margin contact chip, described frequency selection circuit be used for selecting described the second reception signal by and restrain described the first reception signal and pass through;
When described antenna is described the first antenna, for described first day line circuit, the lower margin of described the first antenna and the isolation of the ground of described circuit board.
7. terminal equipment as claimed in claim 4 is characterized in that,
Described first day line circuit is the FM receiver chip;
Described second day line circuit is the global positioning system circuit;
Described third antenna circuit is Bluetooth circuit;
Described the 4th antenna circuit is the WLAN (wireless local area network) circuit.
8. terminal equipment as claimed in claim 7 is characterized in that,
Be provided with low noise amplifier between described first signal split circuit and the described FM receiver chip.
9. such as claim 7 or 8 described terminal equipments, it is characterized in that, also comprise:
External FM receiver antenna is connected with described antenna by radio-frequency transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207945.7A CN102891697B (en) | 2011-07-22 | 2011-07-22 | A kind of terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207945.7A CN102891697B (en) | 2011-07-22 | 2011-07-22 | A kind of terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102891697A true CN102891697A (en) | 2013-01-23 |
| CN102891697B CN102891697B (en) | 2016-01-13 |
Family
ID=47535085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110207945.7A Expired - Fee Related CN102891697B (en) | 2011-07-22 | 2011-07-22 | A kind of terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102891697B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896714A (en) * | 2017-03-01 | 2017-06-27 | 北京数科技有限公司 | A kind of intelligent watch |
| CN110568271A (en) * | 2019-08-16 | 2019-12-13 | 广州杰赛科技股份有限公司 | wearable device and wearing state detection method thereof |
| CN110690908A (en) * | 2018-07-06 | 2020-01-14 | 联想移动通信科技有限公司 | Built-in antenna system and mobile terminal |
| CN110829039A (en) * | 2018-08-07 | 2020-02-21 | 联想移动通信科技有限公司 | Mobile terminal antenna system, control method and mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478455U (en) * | 2009-06-19 | 2010-05-19 | 青岛海信移动通信技术股份有限公司 | Multiplex antenna and communication electronic product therewith |
| CN101807935A (en) * | 2010-03-05 | 2010-08-18 | 深圳市南斗星科技有限公司 | Mobile terminal with shared built-in aerial and method for sharing built-in aerial |
| CN201656964U (en) * | 2009-12-08 | 2010-11-24 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal |
| US7877063B2 (en) * | 2005-04-08 | 2011-01-25 | Panasonic Corporation | High-frequency amplifier, and transmission/reception system |
| CN201781481U (en) * | 2010-07-30 | 2011-03-30 | 惠州Tcl移动通信有限公司 | Mobile terminal and control device of antenna circuit |
-
2011
- 2011-07-22 CN CN201110207945.7A patent/CN102891697B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7877063B2 (en) * | 2005-04-08 | 2011-01-25 | Panasonic Corporation | High-frequency amplifier, and transmission/reception system |
| CN201478455U (en) * | 2009-06-19 | 2010-05-19 | 青岛海信移动通信技术股份有限公司 | Multiplex antenna and communication electronic product therewith |
| CN201656964U (en) * | 2009-12-08 | 2010-11-24 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal |
| CN101807935A (en) * | 2010-03-05 | 2010-08-18 | 深圳市南斗星科技有限公司 | Mobile terminal with shared built-in aerial and method for sharing built-in aerial |
| CN201781481U (en) * | 2010-07-30 | 2011-03-30 | 惠州Tcl移动通信有限公司 | Mobile terminal and control device of antenna circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896714A (en) * | 2017-03-01 | 2017-06-27 | 北京数科技有限公司 | A kind of intelligent watch |
| CN110690908A (en) * | 2018-07-06 | 2020-01-14 | 联想移动通信科技有限公司 | Built-in antenna system and mobile terminal |
| CN110829039A (en) * | 2018-08-07 | 2020-02-21 | 联想移动通信科技有限公司 | Mobile terminal antenna system, control method and mobile terminal |
| CN110568271A (en) * | 2019-08-16 | 2019-12-13 | 广州杰赛科技股份有限公司 | wearable device and wearing state detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102891697B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102332205B1 (en) | Multi-way switches, radio frequency systems and radio communication devices | |
| KR102322541B1 (en) | Multi-way switches, radio frequency systems and radio communication devices | |
| KR102339047B1 (en) | Multi-way switches, radio frequency systems and radio communication devices | |
| CN108923790B (en) | Multi-way selector switch, radio frequency system and wireless communication equipment | |
| KR102325809B1 (en) | Multi-way switches, radio frequency systems and radio communication devices | |
| CN108880602B (en) | Multi-way selector switch and related products | |
| CN106450771B (en) | Electronic device and multi-band antenna thereof | |
| US10419040B1 (en) | Multiway switch, radio frequency system, and communication device | |
| US10623027B2 (en) | Multiway switch, radio frequency system, and communication device | |
| CN108462506A (en) | Multidiameter option switch and Related product | |
| US8483749B2 (en) | Mobile terminal device for receiving dual band signal using multiple resonance antenna | |
| TW201642524A (en) | Electronic device and its antenna with multiple feed points | |
| CN106486742B (en) | Electronic device, antenna thereof and method for receiving or transmitting signal by using electronic device | |
| KR102373409B1 (en) | Multi-way switches, radio frequency systems and radio communication devices | |
| CN105140623A (en) | Antenna system and communication terminal employing same | |
| CN102480804A (en) | Dual-mode mobile terminal system | |
| CN101807935A (en) | Mobile terminal with shared built-in aerial and method for sharing built-in aerial | |
| CN102075207A (en) | Device and method for implementing bluetooth and Wi-Fi single antenna | |
| KR100763812B1 (en) | Diversity antenna for portable terminal and method using it | |
| CN102891697B (en) | A kind of terminal equipment | |
| KR20100020233A (en) | Multi-band antenna by using switching | |
| CN102056346B (en) | Base station for supporting different duplex modes | |
| CN101877619A (en) | Portable electronic device with functions of frequency modulation and multimedia broadcasting | |
| TWI566533B (en) | Wireless communication device | |
| US20130267274A1 (en) | Expansion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20180722 |