CN103227657A - Radio frequency front-end module - Google Patents
Radio frequency front-end module Download PDFInfo
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- CN103227657A CN103227657A CN2013100971275A CN201310097127A CN103227657A CN 103227657 A CN103227657 A CN 103227657A CN 2013100971275 A CN2013100971275 A CN 2013100971275A CN 201310097127 A CN201310097127 A CN 201310097127A CN 103227657 A CN103227657 A CN 103227657A
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Abstract
The invention discloses a radio frequency front-end module which comprises a receiving and transmitting end, a control unit, a first transmitting block and a second transmitting block, wherein the first transmitting block and the second transmitting block are connected with the receiving and transmitting end and the control unit; and the control unit is used for controlling the opening or the closing of the first transmitting block and the second transmitting block, so that the first transmitting block and the second transmitting block can directly transmit signals to the receiving and transmitting end, and loss of the signal intensity caused by the fact that the signals pass through an opening and closing unit is avoided.
Description
Technical field
The present invention relates to a kind of less radio-frequency front-end module, wherein the first emission block and the second emission block directly transmit signals to the sending and receiving end, can avoid signal to cause the loss of signal strength signal intensity through switch element.
Background technology
See also Fig. 1, be the block diagram of existing less radio-frequency front-end module.As shown in the figure, less radio-frequency front-end module 10 comprises an antenna element 11, a switch element 13, one first emission amplifier 151, one second emission amplifier 153, one first impedance unit 171, one second impedance unit 173, one first receiving lines 191 and one second receiving lines 193.
In order to make output obtain maximum power, one first match circuit 171 and one second match circuit 173 respectively can be set between antenna element 11 and first emission amplifier 151 and second emission amplifier 153 generally.
When receiving wireless signal by less radio-frequency front-end module 10, antenna element 11 can transmit signals to first receiving lines 191 or second receiving lines 193 via switch element 13, and during by less radio-frequency front-end module 10 emission wireless signals, 153 of first emission amplifier 151 or second emission amplifiers can transmit signals to antenna element 11 via switch element 13.In other words, in the process that receives or transmit, signal all can pass through switch element 13, and may cause the loss of signal strength signal intensity, for example transmit signals in the process of antenna element 11 via transmission path PATH t1 and PATH t2, can reduce the power and the usefulness of signal, and be sent in the process of RX path PATH r1 and PATH r2, then can reduce the susceptibility of receiving terminal through the signal that antenna element 11 is received.
Summary of the invention
A purpose of the present invention, be to provide a kind of less radio-frequency front-end module, wherein launch between block and the sending and receiving end switch element is not set, make signal to the process of sending and receiving end, can not pass through switch element, to avoid causing the loss of signal strength signal intensity by the emitter region block movement.
A purpose of the present invention, be to provide a kind of less radio-frequency front-end module, wherein between receiving lines and the sending and receiving end switch element is not set, makes signal be sent to by the sending and receiving end in the process of receiving lines and can not pass through switch element, to avoid the loss signal strength signal intensity or to reduce the susceptibility of signal.
A purpose of the present invention is to provide a kind of less radio-frequency front-end module, wherein launches block and transmits signals in the process of sending and receiving end and/or antenna element, can see high impedance toward receiving lines, is sent to receiving lines to avoid signal.
A purpose of the present invention is to provide a kind of less radio-frequency front-end module, and wherein sending and receiving end and/or antenna element transmit signals in the process of receiving lines, can see high impedance toward the emission block, is sent to the emission block to avoid signal.
For achieving the above object, the invention provides a kind of less radio-frequency front-end module, comprising: a sending and receiving end; One first emission block connects the sending and receiving end; One first impedance unit electrically connects the sending and receiving end or the first emission block; One impedance switch unit electrically connects first impedance unit, and switches the connection status between first impedance unit and the first emission block or the sending and receiving end; One control unit connects the first emission block, and in order to open or to close the first emission block; One switch element connects the sending and receiving end; One second emission block connects the sending and receiving end via switch element; One first receiving lines connects the sending and receiving end via switch element; And one second receiving lines, connect the sending and receiving end via switch element.
The present invention also provides a kind of less radio-frequency front-end module, comprising: a sending and receiving end; A plurality of emission blocks connect the sending and receiving end; A plurality of impedance units electrically connect sending and receiving end or a plurality of emission block; A plurality of impedance switch units electrically connect impedance unit, and switch the connection status between impedance unit and emission block or the sending and receiving end; One control unit connects a plurality of emission blocks, and in order to open or to close a plurality of emission blocks; One switch element connects the sending and receiving end; And a plurality of receiving liness, connect the sending and receiving end via switch element.
The present invention also provides another kind of less radio-frequency front-end module, comprising: a sending and receiving end; A plurality of receiving liness connect the sending and receiving end; A plurality of impedance units,, electrically connect sending and receiving end or a plurality of receiving lines; A plurality of impedance switch units electrically connect impedance unit, and switch the connection status between impedance unit and emission block or the sending and receiving end; One switch element connects the sending and receiving end; And a plurality of emission blocks, connect the sending and receiving end via switch element.
The present invention also provides another kind of less radio-frequency front-end module, comprising: a sending and receiving end; A plurality of emission blocks connect the sending and receiving end; One control unit connects a plurality of emission blocks, and in order to open or to close a plurality of emission blocks; A plurality of receiving liness connect the sending and receiving end; And a plurality of impedance units electrically connect a plurality of emission blocks and a plurality of receiving lines respectively; And a plurality of impedance switch units, electrically connect impedance unit, and switch the connection status between impedance unit and emission block or the sending and receiving end, and switch the connection status between impedance unit and receiving lines or the sending and receiving end.
In less radio-frequency front-end module one embodiment of the present invention, comprise that also an antenna element connects the sending and receiving end.
In less radio-frequency front-end module one embodiment of the present invention, wherein control unit connects the second emission block, and in order to open or to close the second emission block.
In less radio-frequency front-end module one embodiment of the present invention, wherein first impedance unit connects first emission block or the sending and receiving end by the impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, an end of its middle impedance switch unit connects first impedance unit, and the other end of impedance switch unit then connects a fixed voltage.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of emission blocks comprise one first emission block and one second emission block; A plurality of receiving liness comprise one first receiving lines and one second receiving lines; And a plurality of impedance units comprise one first impedance unit and one second impedance unit, wherein first impedance unit is crossed one first impedance switch unit and is electrically connected the sending and receiving end or the first emission block, and second impedance unit then electrically connects the sending and receiving end or the second emission block by one second impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of emission blocks comprise one first emission block and one second emission block at least; A plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And a plurality of impedance units comprise one first impedance unit and one second impedance unit at least, wherein an end of first impedance unit electrically connects the sending and receiving end or the first emission block, the other end of first impedance unit connects a fixed voltage by one first impedance switch unit, and an end of second impedance unit electrically connects the sending and receiving end or the second emission block, and the other end of second impedance unit connects a fixed voltage by one second impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, wherein the first emission block comprises one first amplifier and one first match circuit, the second emission block then comprises one second amplifier and one second match circuit, first impedance unit and the first impedance switch unit first match circuit in parallel, second impedance unit and the second impedance switch unit second match circuit in parallel.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of emission blocks comprise one first emission block and one second emission block; A plurality of receiving liness comprise one first receiving lines and one second receiving lines; And a plurality of impedance units comprise one first impedance unit and one second impedance unit, wherein first impedance unit electrically connects the sending and receiving end or first receiving lines by one first impedance switch unit, and second impedance unit then electrically connects the sending and receiving end or second receiving lines by one second impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, also comprise a control unit, connect a plurality of emission blocks, and in order to open or to close a plurality of emission blocks.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of emission blocks comprise one first emission block and one second emission block; A plurality of receiving liness comprise one first receiving lines and one second receiving lines; And a plurality of impedance units comprise one first impedance unit, one second impedance unit, one the 3rd impedance unit and one the 4th impedance unit, wherein first impedance unit electrically connects the sending and receiving end or the first emission block by one first impedance switch unit, second impedance unit then electrically connects the sending and receiving end or the second emission block by one second impedance switch unit, the 3rd impedance unit then electrically connects the sending and receiving end or first receiving lines by one the 3rd impedance switch unit, and the 4th impedance unit then electrically connects the sending and receiving end or second receiving lines by one the 4th impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of emission blocks comprise one first emission block and one second emission block at least; A plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And a plurality of impedance units comprise one first impedance unit at least, one second impedance unit, one the 3rd impedance unit and one the 4th impedance unit, wherein an end of first impedance unit electrically connects the sending and receiving end or the first emission block, the other end of first impedance unit connects a fixed voltage by one first impedance switch unit, one end of second impedance unit electrically connects the sending and receiving end or the second emission block, the other end of second impedance unit connects a fixed voltage by one second impedance switch unit, one end of the 3rd impedance unit electrically connects the sending and receiving end or first receiving lines, the other end of the 3rd impedance unit connects a fixed voltage by one the 3rd impedance switch unit, one end of the 4th impedance unit electrically connects the sending and receiving end or second receiving lines, and the other end of the 4th impedance unit connects a fixed voltage by one the 4th impedance switch unit.
In less radio-frequency front-end module one embodiment of the present invention, wherein a plurality of impedance units are passive device.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the block diagram of existing less radio-frequency front-end module;
Fig. 2 is the organigram of the less radio-frequency front-end module of one embodiment of the invention;
Fig. 3 is the organigram of the less radio-frequency front-end module of further embodiment of this invention;
Fig. 4 is the organigram of the less radio-frequency front-end module of further embodiment of this invention;
Fig. 5 is the organigram of the less radio-frequency front-end module of further embodiment of this invention;
Fig. 6 is the organigram of the less radio-frequency front-end module of further embodiment of this invention;
Fig. 7 is the organigram of the less radio-frequency front-end module of further embodiment of this invention;
Fig. 8 is the organigram of the less radio-frequency front-end module of further embodiment of this invention; And
Fig. 9 is the organigram of the less radio-frequency front-end module of further embodiment of this invention.
Wherein, Reference numeral
10 less radio-frequency front-end modules, 11 antenna elements
13 switch elements, 151 first emission amplifiers
153 second emission amplifiers, 171 first impedance units
173 second impedance units, 191 first receiving liness
193 second receiving liness
20 less radio-frequency front-end modules, 21 sending and receiving ends
22 antenna elements, 221 impedance matching units
23 first emission blocks, 231 first amplifiers
232 impedance switch units, 233 first impedance units
235 first match circuits, 24 control units
25 second emission blocks, 251 second amplifiers
255 second match circuits, 26 switch elements
27 first receiving liness, 29 second receiving liness
30 less radio-frequency front-end modules, 33 first emission blocks
331 first amplifiers, 332 first impedance switch units
333 first impedance units, 335 first match circuits
34 control units, 35 second emission blocks
351 second amplifiers, 352 second impedance switch units
353 second impedance units, 355 second match circuits
36 switch elements
40 less radio-frequency front-end modules, 431 first emission blocks
4,311 first amplifiers, 4,313 first match circuits
433 second emission blocks, 4,331 second amplifiers
4,333 second match circuits, 439 n launch block
4391 n amplifiers, 4393 n match circuits
44 control units, 451 first receiving liness
453 second receiving liness, 459 n receiving liness
46 switch elements, 471 first impedance units
473 second impedance units, 479 n impedance units
481 first impedance switch units, 483 second impedance switch units
489 n impedance switch units
50 less radio-frequency front-end modules, 531 first emission blocks
533 second emission blocks, 539 n emission block
54 control units, 551 first receiving liness
553 second receiving liness, 559 n receiving liness
56 switch elements, 571 first impedance units
573 second impedance units, 579 n impedance units
581 first impedance switch units, 583 second impedance switch units
589 n impedance switch units
60 less radio-frequency front-end modules, 631 first emission blocks
6,311 first amplifiers, 6,313 first match circuits
633 second emission blocks, 6,331 second amplifiers
6,333 second match circuits, 639 n launch block
64 control units, 651 first receiving liness
653 second receiving liness, 659 n receiving liness
671 first impedance units, 673 second impedance units
675 the 3rd impedance units 677 the 4th impedance unit
681 first impedance switch units, 683 second impedance switch units
685 the 3rd impedance switch units 687 the 4th impedance switch unit
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:
See also Fig. 2, be the organigram of the less radio-frequency front-end module of one embodiment of the invention.As shown in the figure, less radio-frequency front-end module 20 comprises a sending and receiving end 21, one first emission block 23, one first impedance unit 233, a control unit 24, one second emission block 25, a switch element 26, one first receiving lines 27 and one second receiving lines 29, wherein the first emission block 23 directly connects sending and receiving end 21, makes on the first transmission path PATH t1 that wins between emitter region piece 23 and the sending and receiving end 21 switch element 26 is not set.
In an embodiment of the present invention, less radio-frequency front-end module 20 can be one or more chip to be formed, and connects at least one antenna element 22 by sending and receiving end 21.Sending and receiving end 21 can directly connect antenna element 22, or by first impedance matching unit, 221 connection antenna elements 22, the first emission block 23 and the second emission block 25 transmit signals to antenna element 22 via sending and receiving end 21, and antenna element 22 then transmits signals to first receiving lines 27 and second receiving lines 29 via sending and receiving end 21.
In embodiments of the present invention, the second emission block 25, first receiving lines 27 and second receiving lines 29 connect sending and receiving end 21 by switch element 26.Switch element 26 can make the second emission block 25, first receiving lines 27 or second receiving lines 29 connect sending and receiving end 21 in order to switch second emission block 25, first receiving lines 27 or second receiving lines 29.
In an embodiment of the present invention, the first emission block 23 comprises that one first amplifier, 231, the second emission blocks 25 then comprise one second amplifier 251.Control unit 24 connects the first emission block 23 and/or first amplifier 231, and in order to the unlatching of controlling first emission block 23 and/or first amplifier 231 or close, for example whether control unit 24 can be in order to control to first amplifier, 231 supply powers or bias voltage.
In embodiments of the present invention, first impedance unit 233 electrically connects the sending and receiving end 21 and/or the first emission block 23, impedance switch unit 232 then electrically connects first impedance unit 233, and switch first impedance unit 233 and first connection status of launching between block 23 and/or the sending and receiving end 21, for example make the impedance unit 233 of winning electrically connect first emission block 23 and/or the sending and receiving end 21.
In an embodiment of the present invention, first impedance unit 233 connects the sending and receiving end 21 and/or the first emission block 23 by an impedance switch unit 232, and whether electrically connects the sending and receiving end 21 and/or the first emission block 23 by impedance switch unit 232 controls first impedance unit 233.In another embodiment of the present invention, impedance switch unit 232 connects an end of first impedance unit 233, the other end of first impedance unit 233 then connects a fixed voltage V or a ground connection, can whether electrically connect the sending and receiving end 21 and/or the first emission block 23 by impedance switch unit 232 controls first impedance unit 233 equally.
In another embodiment of the present invention, one end of impedance switch unit 232 connects first impedance unit 233, the other end of impedance switch unit 232 then connects a fixed voltage V or a ground connection, can whether electrically connect the sending and receiving end 21 and/or the first emission block 23 by impedance switch unit 232 controls first impedance unit 233 equally.
In an embodiment of the present invention, first impedance unit 233 can be passive device, for example is electric capacity and/or inductance.In an embodiment of the present invention, control unit 24 can connect impedance switch unit 232, and in order to the unlatching of control group switch unit 232 or close.
In embodiments of the present invention, first impedance unit 233 and control unit 24 neither being positioned on the first transmission path PATH t1, for example first impedance unit 233 is by the impedance switch unit 232 first emission blocks 23 in parallel, and control unit 24 is then in order to control the power supply or the bias voltage of the first emission block 23.In other words, first signal that sent of emission block 23 can't be through first impedance unit 233 and/or control unit 24.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the first emission block 23, switch element 26 can be closed (off), make the second emission block 25, first receiving lines 27 and second receiving lines 29 can not connect sending and receiving end 21 and/or antenna element 22.Control unit 24 can be opened the first emission block 23, impedance switch unit 232 then can be closed (off), the impedance unit 233 of winning is not connected with the sending and receiving end 21 and/or the first emission block 23, and the first emission block 23 then can transmit signals to sending and receiving end 21 via the first transmission path PAHT t1.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the second emission block 25, and switch element 26 switched to a gear, make the second emission block 25 connect sending and receiving end 21 and/or antenna element 22, and can transmit signals to sending and receiving end 21 and/or antenna element 22 via the second transmission path PATH t2 by switch element 26.At this moment, control unit 24 can be closed the first emission block 23, make the emitter region piece 23 of winning can not produce signal, impedance switch unit 232 then can be opened (on), make the impedance unit 233 of winning connect the sending and receiving end 21 and/or the first emission block 23, and make the impedance of seeing toward the first emission block 23 (ZLB), in the operated frequency range of the second emission block 25, become high impedance.
With first receiving lines 27 during by sending and receiving end 21 and/or antenna element 22 received signals, switch element 26 can be switched to the b gear, make the receiving lines 27 of winning connect sending and receiving end 21 and/or antenna element 22 by switch element 26, and can be via the first RX path PATH r1 by sending and receiving end 21 and/or antenna element 22 received signals.At this moment, control unit 24 can be closed the first emission block 23, impedance switch unit 232 then can be opened (on), make the impedance unit 233 of winning connect the sending and receiving end 21 and/or the first emission block 23, and make the impedance of seeing toward the first emission block 23 (ZLB), in the operated frequency range of first receiving lines 27, become high impedance.
With second receiving lines 29 during by sending and receiving end 21 and/or antenna element 22 received signals, switch element 26 can be switched to the c gear, make second receiving lines 29 connect sending and receiving end 21 and/or antenna element 22 by switch element 26, and can be via the second RX path PATH r2 by sending and receiving end 21 and/or antenna element 22 received signals.At this moment, control unit 24 can be closed the first emission block 23, impedance switch unit 232 then can be opened (on), make the impedance unit 233 of winning connect the sending and receiving end 21 and/or the first emission block 23, and make the impedance of seeing toward the first emission block 23 (ZLB), in the operated frequency range of second receiving lines 29, become high impedance.
In embodiment of the present invention, mainly whether transmit signals to sending and receiving end 21 by the control unit 24 controls first emission block 23, therefore between the first emission block 23 and the sending and receiving end 21 switch element 26 need not be set.Owing to do not have switch element 26 on the first transmission path PATH t1, therefore the first emission block 23 is in the process that transmits signals to sending and receiving end 21, signal will can not pass through switch element 26, can avoid signal to cause the loss of signal strength signal intensity in the process process of switch element 26.
In an embodiment of the present invention, control unit 24 can connect the first emission block 23 and the second emission block 25, and opens or close the first emission block 23 and/or the second emission block 25.For example when transmitting signals to sending and receiving end 21 and/or antenna element 22 with the first emission block 23, control unit 24 can be opened the first emission block 23 and close the second emission block 25, and with first receiving lines 27 or second receiving lines, 29 received signals the time, then close the first emission block 23 and the second emission block 25 simultaneously, will help reducing the consumption of power supply by this.
In an embodiment of the present invention, the first emission block 23 comprises that one first match circuit, 235, the second emission blocks 25 then comprise one second match circuit 255.By the setting of first match circuit 235 and second match circuit 255, can carry out the adjustment of circuit impedance, make antenna element 22 reach impedance matching (impedance matching) with the first emission block 23 and the second emission block 25 respectively.
In an embodiment of the present invention, the first emission block 23 can be low frequency signal emission block (high-frequency signal emission block), and in order to low frequency signal (high-frequency signal) is sent to sending and receiving end 21, the second emission block 25 then can be high-frequency signal emission block (low frequency signal emission block), and in order to high-frequency signal (low frequency message) is sent to sending and receiving end 21.Pass through the setting of the control unit 24 and/or first impedance unit 233 in addition, make the emitter region piece 23 of winning to connect sending and receiving end 21 by switch element 26, can reduce the loss of signal that the first emission block 23 produces in the process that transmits signals to sending and receiving end 21.
See also Fig. 3, be the organigram of the less radio-frequency front-end module of further embodiment of this invention.As shown in the figure, less radio-frequency front-end module 30 comprises a sending and receiving end 21, one first emission block 33, one first impedance unit 333, one control unit 34, one second emission block 35, one second impedance unit 353, one switch element 36, one first receiving lines 27 and one second receiving lines 29, wherein the first emission block 33 and the second emission block 35 directly connect sending and receiving end 21, make the first transmission path PATH t1 that wins between emitter region piece 33 and the sending and receiving end 21 that switch element 36 is not set, and the second transmission path PATH t2 between the second emission block 35 and the sending and receiving end 21 also is not provided with switch element 36.
In an embodiment of the present invention, less radio-frequency front-end module 30 can be one or more chip and forms, and by at least one antenna element 22 of sending and receiving end 21 connections, sending and receiving end 21 can directly connect antenna element 22, or by first impedance matching unit, 221 connection antenna elements 22, the first emission block 33 and the second emission block 35 transmit signals to antenna element 22 via sending and receiving end 21, and antenna element 22 then transmits signals to first receiving lines 27 and second receiving lines 29 via sending and receiving end 21.
In embodiments of the present invention, first receiving lines 27 and second receiving lines 29 connect sending and receiving end 21 by switch element 36.Switch element 36 can be in order to switch first receiving lines 27 or second receiving lines 29, to make win receiving lines 27 or second receiving lines, 29 connection sending and receiving ends 21.
In an embodiment of the present invention, the first emission block 33 comprises that one first amplifier, 331, the second 35 of blocks of emission comprise one second amplifier 351.Control unit 34 connects the first emission block 33 and the second emission block 35, and in order to control first the emission block 33 and second the emission block 35 unlatching or close, for example control unit 34 can in order to control whether to first amplifier 331 and second amplifier, 351 supply powers or bias voltage.
In embodiments of the present invention, first impedance unit 333 electrically connects the sending and receiving end 21 and/or the first emission block 33, the first impedance switch unit 332 then electrically connects first impedance unit 333, and switches the connection status between first impedance unit 333 and the first emission block 33 and/or the sending and receiving end 21.Second impedance unit 353 electrically connects the sending and receiving end 21 and/or the second emission block 35, the second impedance switch unit 352 then electrically connects second impedance unit 353, and switches the connection status between second impedance unit 353 and the second emission block 35 and/or the sending and receiving end 21.First impedance unit 333 and control unit 34 are not positioned on the first transmission path PATH t1, and second impedance unit 353 and control unit 34 also are not positioned on the second transmission path PATH t2.
First impedance unit, the 333 first emission block, 33, the second impedance units, the 353 second emission blocks 35 in parallel in parallel, control unit 34 is then in order to control the power supply or the bias voltage of the first emission block 33 and the second emission block 35.In other words, first signal that sent of emission block 33 can't be through first impedance unit 333 and/or control unit 34, and the signal that the second emission block 35 is sent also can be through second impedance unit 353 and/or control unit 34.
In embodiments of the present invention, first impedance unit 333 connects sending and receiving end 21 by one first impedance switch unit 332 and/or the first emission block, 33, the second impedance units 353 then connect the sending and receiving end 21 and/or the second emission block 35 by one second impedance switch unit 352.First impedance unit 333 and second impedance unit 353 can be passive device in an embodiment of the present invention, for example can be electric capacity and/or inductance.
In an embodiment of the present invention, the first impedance switch unit 332 connects an end of first impedance unit 333, and the other end of first impedance unit 333 then connects a fixed voltage V or a ground connection.The second impedance switch unit 352 connects an end of second impedance unit 353, and the other end of second impedance unit 353 then connects a fixed voltage V or a ground connection.Can whether electrically connect the sending and receiving end 21 and/or the first emission block 33 by the first impedance switch unit, 332 controls, first impedance unit 333 during use, and whether electrically connect the sending and receiving end 21 and/or the second emission block 35 by the second impedance switch unit, 352 controls, second impedance unit 353.
In another embodiment of the present invention, the other end that an end of the first impedance switch unit 332 connects first impedance unit, 333, the first impedance switch units 332 then connects a fixed voltage V or a ground connection.The other end that one end of the second impedance switch unit 352 connects second impedance unit, 353, the second impedance switch units 352 then connects a fixed voltage V or a ground connection.Can whether electrically connect the sending and receiving end 21 and/or the first emission block 33 by the first impedance switch unit, 332 controls, first impedance unit 333 during use, and whether electrically connect the sending and receiving end 21 and/or the second emission block 35 by the second impedance switch unit, 352 controls, second impedance unit 353.
In an embodiment of the present invention, control unit 34 can connect the first impedance switch unit 332 and the second impedance switch unit 352, and in order to the unlatching of controlling the first impedance switch unit 332 and the second impedance switch unit 352 or close.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the first emission block 33, switch element 36 can be closed (off), first receiving lines 27 and second receiving lines 29 will can not connect sending and receiving end 21 and/or antenna element 22.Control unit 34 can be opened first amplifier 331, and closes second amplifier 351.The first impedance switch unit 332 can be closed (off), and the second impedance switch unit 352 then can be opened (on).First impedance unit 333 will can not connect the sending and receiving end 21 and/or the first emission block 33 this moment, second impedance unit 353 then can connect the sending and receiving end 21 and/or the second emission block 35, and make past second to launch the impedance (ZHB) that block 35 is seen, in the operated frequency range of the first emission block 33, become high impedance, make the emitter region piece 33 of winning to transmit signals to sending and receiving end 21 via the first transmission path PAHT t1.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the second emission block 35, switch element 36 can be closed (off), first receiving lines 27 and second receiving lines 29 will can not connect sending and receiving end 21 and/or antenna element 22.Control unit 34 can be closed first amplifier 331, and opens second amplifier 351.The first impedance switch unit 332 can be opened (on), and the second impedance switch unit 352 then can be closed (off).This moment, first impedance unit 333 will connect the sending and receiving end 21 and/or the first emission block 33, second impedance unit 353 then can not connect the sending and receiving end 21 and/or the second emission block 35, and make past first to launch the impedance (ZLB) that block 33 is seen, in the operated frequency range of the second emission block 35, become high impedance, make the second emission block 35 to transmit signals to sending and receiving end 21 via the second transmission path PAHT t2.
With first receiving lines 27 during by sending and receiving end 21 and/or antenna element 22 received signals, switch element 36 can be switched to a gear, make the receiving lines 27 of winning connect sending and receiving end 21 and/or antenna element 22 by switch element 36, and can be via the first RX path PATH r1 by sending and receiving end 21 and/or antenna element 22 received signals.At this moment, control unit 34 can be closed first amplifier 331 and second amplifier 351, the first impedance switch unit 332 and/or the second impedance switch unit 352 then can be opened (on), make the impedance unit 333 of winning connect the sending and receiving end 21 and/or the first emission block 33, second impedance unit 353 then can connect the sending and receiving end 21 and/or the second emission block 35, and make past first to launch the impedance (ZLB) that block 33 is seen, and, in the operated frequency range of first receiving lines 27, become high impedance toward second impedance (ZHB) seen of emission block 35.
With second receiving lines 29 during by sending and receiving end 21 and/or antenna element 22 received signals, switch element 36 can be switched to the b gear, make second receiving lines 29 connect sending and receiving end 21 and/or antenna element 22 by switch element 36, and can be via the second RX path PATH r2 by sending and receiving end 21 and/or antenna element 22 received signals.At this moment, control unit 34 can be closed first amplifier 331 and second amplifier 351, the first impedance switch unit 332 and/or the second impedance switch unit 352 then can be opened (on), make the impedance unit 333 of winning connect the sending and receiving end 21 and/or the first emission block 33, second impedance unit 353 then can connect the sending and receiving end 21 and/or the second emission block 35, and make past first to launch the impedance (ZLB) that block 33 is seen, and, in the operated frequency range of second receiving lines 29, become high impedance toward second impedance (ZHB) seen of emission block 35.
In an embodiment of the present invention, the first emission block 33 comprises that one first match circuit, 335, the second emission blocks 35 then comprise one second match circuit 355.By the setting of first match circuit 335 and second match circuit 355, can carry out the adjustment of circuit impedance, make sending and receiving end 21 reach impedance matching (impedance matching) with the first emission block 33 and the second emission block 35 respectively.
Consult shown in Figure 4ly, be the organigram of the less radio-frequency front-end module of further embodiment of this invention.As shown in the figure, less radio-frequency front-end module 40 comprises a sending and receiving end 21, one control unit 44, a plurality of emission blocks 431/433/ ... / 439, a plurality of receiving liness 451/453/ ... / 459, one switch element 46 and a plurality of impedance unit 471/473/ ... 479, wherein a plurality of emission blocks 431/433/ ... / 439 connect sending and receiving end 21, a plurality of impedance units 471/473/ ... 479 electrically connect a plurality of emission blocks 431/433/ respectively ... / 439 or sending and receiving end 21, control unit 44 connects a plurality of emission blocks 431/433/ ... / 439, and in order to open or to close a plurality of emission blocks 431/433/ ... / 439, switch element 46 connects sending and receiving end 21 and a plurality of receiving lines 451/453/ ... / 459.
In an embodiment of the present invention, the emission block comprise one first emission block 431, one second emission block 433 ... and n emission block 439; Receiving lines comprise one first receiving lines 451, one second receiving lines 453 ... an and n receiving lines 459; Impedance unit then comprise one first impedance unit 471, one second impedance unit 473 ... an and n impedance unit 479.
First receiving lines 451, second receiving lines 453 ... reach n receiving lines 459 and connect sending and receiving ends 21, and connect antenna elements 22 by sending and receiving end 21 by switch element 46.Switch element 46 can in order to switch first receiving lines 451, second receiving lines 453 ... and n receiving lines 459, make the receiving lines 451 of winning, second receiving lines 453 ... or n receiving lines 459 connects sending and receiving end 21.
In an embodiment of the present invention, the first emission block 431 comprises one first amplifier 4311 and one first match circuit 4313; The second emission block 433 comprises one second amplifier 4331 and one second match circuit 4333; N emission block 439 then comprises a n amplifier 4391 and a n match circuit 4393.
The first emission block 431, the second emission block 433 ... reach n emission block 439 and directly connect sending and receiving end 21, and connect antenna elements 22 by sending and receiving end 21.Because the first emission block 431, the second emission block 433 ... and do not have switch element between n emission block 439 and sending and receiving end 21 and/or the antenna element 22, can effectively reduce signal by the first emission block 431, second launch block 433 ... and n emission block 439 is sent to the loss of signal that sending and receiving end 21 and/or antenna element 22 are produced.
The first emission block 431, the second emission block 433 ... and n emission block 439 connects control unit 44 respectively, and can by the control unit 44 controls first emission block 431, the second emission block 433 ... and the unlatching of n emission block 439 or close.
In embodiments of the present invention, the first emission block 431, the second emission block 433, and n emission block 439 also can pass through the first impedance switch unit 481 respectively, the second impedance switch unit 483, and n impedance switch unit 489 connects an end of first impedance unit 471, one end of second impedance unit 473, an and end of n impedance unit 479, and the other end of first impedance unit 471, the other end of second impedance unit 473, the other end of n impedance unit 479 connects a fixed voltage V or ground connection respectively, exchanges ground connection (AC Short) to provide.
In an embodiment of the present invention, the first impedance switch unit 481 connects an end of first impedance unit 471, and the other end of first impedance unit 471 then connects a fixed voltage V or a ground connection.The second impedance switch unit 483 connects an end of second impedance unit 473, and the other end of second impedance unit 473 then connects a fixed voltage V or a ground connection.N impedance switch unit 489 connects an end of n impedance unit 479, and the other end of n impedance unit 479 then connects a fixed voltage V or a ground connection.Can whether electrically connect the sending and receiving end 21 and/or the first emission block 431 by the first impedance switch unit, 481 controls, first impedance unit 471 during use; Whether electrically connect the sending and receiving end 21 and/or the second emission block 433 by the second impedance switch unit, 483 controls, second impedance unit 473; Reach by n impedance switch unit 489 control n impedance units 479 and whether electrically connect sending and receiving end 21 and/or n emission block 439.
In another embodiment of the present invention, the other end that an end of the first impedance switch unit 481 connects first impedance unit, 471, the first impedance switch units 481 then connects a fixed voltage V or a ground connection.The other end that one end of the second impedance switch unit 483 connects second impedance unit, 473, the second impedance switch units 483 then connects a fixed voltage V or a ground connection.The other end that one end of n impedance switch unit 489 connects n impedance unit 479, the n impedance switch units 489 then connects a fixed voltage V or a ground connection.Can whether electrically connect the sending and receiving end 21 and/or the first emission block 431 by the first impedance switch unit, 481 controls, first impedance unit 471 during use; Whether electrically connect the sending and receiving end 21 and/or the second emission block 433 by the second impedance switch unit, 483 controls, second impedance unit 473; Reach by n impedance switch unit 489 control n impedance units 479 and whether electrically connect sending and receiving end 21 and/or n emission block 439.
When practical application, the first impedance switch unit 481, the second impedance switch unit 483, the unlatching or the closed condition that reach n impedance switch unit 489 are launched block 431 with first respectively, the second emission block 433, and the unlatching or the closed condition of n emission block 439 are opposite, can adjust respectively by this toward the first emission block 431, the second emission block 433, and n launches the impedance Z t1 that block 439 is seen, Zt2, and Ztn, make the emission block of opening, in the operational frequency range of open emission block, the impedance of seeing toward other block is a high impedance.
In an embodiment of the present invention, please cooperate and consult Fig. 5, first impedance unit 471 and the first impedance switch unit 481 can first match circuits 4313 in parallel; Second impedance unit 473 and the second impedance switch unit 483 can second match circuits 4333 in parallel; Reaching n impedance unit 479 and n impedance switch unit 489 can n match circuit 4393 in parallel.
See also Fig. 6, be the organigram of the less radio-frequency front-end module of further embodiment of this invention.As shown in the figure, less radio-frequency front-end module 50 comprises a sending and receiving end 21, a plurality of emission block (as one first emission block 531 and one second emission block 533), a plurality of receiving lines (as one first receiving lines 551 and one second receiving lines 553), a plurality of impedance unit (as one first impedance unit 571 and one second impedance unit 573) and a switch element 56.
First launches block 531 and second launches block 533 by switch element 56 connection sending and receiving ends 21, and can launch the connection state of block 531 and the second emission block 533 and sending and receiving end 21 by switch element 56 changes first.In an embodiment of the present invention, less radio-frequency front-end module 50 also can comprise a control unit 54, and wherein control unit 54 connects a plurality of emission blocks 531/533, and in order to open or to close a plurality of emission blocks 531/533.
First receiving lines 551 and second receiving lines 553 directly connect sending and receiving end 21, and can connect antenna element 22 by sending and receiving end 21.Owing between first receiving lines 551 and second receiving lines 553 and sending and receiving end 21 and/or the antenna element 22 switch element is not set, but reduce signal is sent to the loss that is produced in the process of first receiving lines 551 and second receiving lines 553 by sending and receiving end 21 and/or antenna element 22.
In an embodiment of the present invention, first receiving lines 551 connects first impedance unit, 571, the second receiving liness 553 by the first impedance switch unit 581 and then connects second impedance unit 573 by the second impedance switch unit 583.When the first emission block 551 or 553 unlatchings of the second emission block, the first impedance switch unit 581 and/or the second impedance switch unit 583 will be opened (on), make Zr1 and Zr2 in the operated frequency range of the first emission block 551 and the second emission block 553, become high impedance, so can avoid the signal consume.
In an embodiment of the present invention, please cooperate consult shown in Figure 7, a plurality of emission blocks 531/533/ ... / 539 by switch element 56 connection sending and receiving ends 21; A plurality of receiving liness 551/553/ ... / 559 connect sending and receiving end 21; A plurality of impedance units 571/573/ ... / 579 respectively by at least one impedance switch unit 581/583/ ... / 589 electrically connect sending and receiving end 21 or a plurality of receiving lines 551/553/ ... / 559.In another embodiment, also can connect a plurality of emission blocks 531/533/ by control unit 54 ... / 539, and in order to open or to close a plurality of emission blocks 531/533/ ... / 539.
In an embodiment of the present invention, the emission block can comprise one first emission block 551, the second emission block 553 ... and n emission block 559; Receiving lines can comprise one first receiving lines 551, one second receiving lines 553 ... and n receiving lines 559; Impedance unit can comprise one first impedance unit 571, one second impedance unit 573 ... an and n impedance unit 579; The impedance switch unit can comprise one first impedance switch unit 581, one second impedance switch unit 583 ... an and n impedance switch unit 589.
In an embodiment of the present invention, first receiving lines 551, second receiving lines 553, and n receiving lines 559 also can pass through the first impedance switch unit 581 respectively, the second impedance switch unit 583, and n impedance switch unit 589 connects an end of first impedance unit 571, one end of second impedance unit 573, an and end of n impedance unit 579, and the other end of first impedance unit 571, the other end of second impedance unit 573, the other end that reaches n impedance unit 579 connects a fixed voltage V or ground connection respectively, exchanges ground connection (AC Short) to provide.
In another embodiment of the present invention, the first impedance switch unit 581 connects an end of first impedance unit 571, and the other end of first impedance unit 571 then connects a fixed voltage V or a ground connection; The second impedance switch unit 583 connects an end of second impedance unit 573, and the other end of second impedance unit 573 then connects a fixed voltage V or a ground connection; And an end of n impedance switch unit 589 connection n impedance units 579, the other end of n impedance unit 579 then connects a fixed voltage V or a ground connection.
In another embodiment of the present invention, the other end that an end of the first impedance switch unit 581 connects first impedance unit, 571, the first impedance switch units 581 then connects a fixed voltage V or a ground connection; The other end that one end of the second impedance switch unit 583 connects second impedance unit, 573, the second impedance switch units 583 then connects a fixed voltage V or a ground connection; And the other end that an end of n impedance switch unit 589 connects n impedance unit 579, the n impedance switch units 589 then connects a fixed voltage V or a ground connection.
See also Fig. 8, be the organigram of the less radio-frequency front-end module of further embodiment of this invention.As shown in the figure, less radio-frequency front-end module 60 comprises a sending and receiving end 21, a plurality of emission block (as one first emission block 631 and one second emission block 633), a control unit 64, a plurality of receiving lines (as one first receiving lines 651 and one second receiving lines 653) and a plurality of impedance unit (as one first impedance unit 671, one second impedance unit 673, one the 3rd impedance unit 675 and one the 4th impedance unit 677).Wherein the first emission block 631, the second emission block 633, first receiving lines 651 and second receiving lines 653 directly are connected with sending and receiving end 21, and any switch element is not set on transmission path.
In an embodiment of the present invention, less radio-frequency front-end module 60 can be one or more chip and forms, and by at least one antenna element 22 of sending and receiving end 21 connections, sending and receiving end 21 can directly connect antenna element 22, or by first impedance matching unit, 221 connection antenna elements 22, the first emission block 631 and the second emission block 633 transmit signals to antenna element 22 via sending and receiving end 21, and antenna element 22 then transmits signals to first receiving lines 651 and second receiving lines 653 via sending and receiving end 21.
On the first transmission path PATH t1 between first emission block 631 and the sending and receiving end 21 any switch element is not set, makes signal launch block 631 and be sent in the process of sending and receiving end 21 and can not pass through switch element by first.On the second transmission path PATH t2 between second emission block 633 and the sending and receiving end 21 any switch element is not set, makes signal launch block 633 and be sent in the process of sending and receiving end 21 and can not pass through switch element by second.On the first RX path PATH r1 between first receiving lines 651 and the sending and receiving end 21 any switch element is not set, makes signal be sent to by sending and receiving end 21 in the process of first receiving lines 651 and can not pass through switch element.On the second RX path PATH r2 between second receiving lines 653 and the sending and receiving end 21 any switch element also is not set, makes signal be sent to by sending and receiving end 21 in the process of second receiving lines 653 and can not pass through switch element.
Therefore when transmitting signals to sending and receiving end 21 and/or antenna element 22 via the first transmission path PATH t1 or the second transmission path PATH t2, or via the first RX path PATH r1 or the second RX path PATH r2 during by sending and receiving end 21 and/or antenna element 22 received signals, neither meeting causes the loss of signal strength signal intensity.
In an embodiment of the present invention, one end of first impedance unit 671 connects the sending and receiving end 21 and/or the first emission block 631 by the first impedance switch unit 681, the other end of first impedance unit 671 connects a fixed voltage V or ground connection, exchanges ground connection (AC Short) to provide.One end of second impedance unit 673 connects a fixed voltage V or ground connection by the other end that the second impedance switch unit 683 connects sending and receiving end 21 and/or the second emission block, 633, the second impedance units 673, exchanges ground connection (AC Short) to provide.First receiving lines 651 is by an end of the 3rd impedance switch unit 685 connections one the 3rd impedance unit 675, and the other end of the 3rd impedance unit 675 connects a fixed voltage V or ground connection, exchanges ground connection (AC Short) to provide.653 ends by the 4th impedance switch unit 687 connections one the 4th impedance unit 677 of second receiving lines, the other end of the 4th impedance unit 677 connects a fixed voltage V or ground connection, exchanges ground connection (AC Short) to provide.
In another embodiment of the present invention, the first impedance switch unit 681 connects an end of first impedance unit 671, and the other end of first impedance unit 671 then connects a fixed voltage V or a ground connection; The second impedance switch unit 683 connects an end of second impedance unit 673, and the other end of second impedance unit 673 then connects a fixed voltage V or a ground connection; The 3rd impedance switch unit 685 connects an end of the 3rd impedance unit 675, and the other end of the 3rd impedance unit 675 then connects a fixed voltage V or a ground connection; And an end of the 4th impedance switch unit 687 connections the 4th impedance unit 677, the other end of the 4th impedance unit 677 then connects a fixed voltage V or a ground connection.
In another embodiment of the present invention, the other end that an end of the first impedance switch unit 681 connects first impedance unit, 671, the first impedance switch units 681 then connects a fixed voltage V or a ground connection; The other end that one end of the second impedance switch unit 683 connects second impedance unit, 673, the second impedance switch units 683 then connects a fixed voltage V or a ground connection; The other end that one end of the 3rd impedance switch unit 685 connects the 3rd impedance unit 675, the three impedance switch units 685 then connects a fixed voltage V or a ground connection; And the other end that an end of the 4th impedance switch unit 687 connects the 4th impedance unit 677, the four impedance switch units 687 then connects a fixed voltage V or a ground connection.
In an embodiment of the present invention, control unit 64 can connect the first impedance switch unit 681, the second impedance switch unit 683, the 3rd impedance switch unit 685 and the 4th impedance switch unit 687, and in order to the unlatching of controlling the first impedance switch unit 681, the second impedance switch unit 683, the 3rd impedance switch unit 685 and the 4th impedance switch unit 687 or close.First impedance unit 671, second impedance unit 673, the 3rd impedance unit 675 and the 4th impedance unit 677 can be passive device in addition, for example can be electric capacity and/or inductance.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the first emission block 631, control unit 64 will be opened the first emission block 631 and close the second emission block 633, and the first impedance switch unit 681 closed (off), and with the second impedance switch unit 683 and/or the 3rd impedance switch unit 685 and/or 687 unlatchings (on) of the 4th impedance switch unit, this moment, second impedance unit 673 and/or the 3rd impedance unit 675 and/or the 4th impedance unit 677 will connect the sending and receiving end 21 and/or the first emission block 631, make ZHB, Zr1 and Zr2 become high impedance in the operated frequency range of the first emission block 631, so signal will transmit signals to sending and receiving end 21 and/or antenna element 22 via the first transmission path PATH t1, and avoid consuming signal on other path.
When transmitting signals to sending and receiving end 21 and/or antenna element 22 with the second emission block 633, control unit 64 will be opened the second emission block 633 and close the first emission block 631, and the second impedance switch unit 683 closed (off), and with the first impedance switch unit 681 and/or the 3rd impedance switch unit 685 and/or 687 unlatchings (on) of the 4th impedance switch unit, this moment, first impedance unit 671 and/or the 3rd impedance unit 675 and/or the 4th impedance unit 677 will connect the sending and receiving end 21 and/or the second emission block 633, make ZLB, Zr1 and Zr2 become high impedance in the operated frequency range of the second emission block 633, so signal will transmit signals to sending and receiving end 21 and/or antenna element 22 via the second transmission path PATH t2, and avoid consuming signal on other path.
When signal is sent to first receiving lines 651 by sending and receiving end 21 and/or antenna element 22, control unit 64 can be closed first amplifier 6311 and second amplifier 6331, the 3rd impedance switch unit 685 also can be closed (off), and the first impedance switch unit 681 and/or the second impedance switch unit 683 and/or the 4th impedance switch unit 687 then can be opened (on).Make ZLB, ZHB and Zr2 in the operated frequency range of first receiving lines 651, become high impedance, so sending and receiving end 21 and/or antenna element 22 can pass the signal to first receiving lines 651 via the first RX path PATH r1, and avoid consuming signal on other path.
When the signal with sending and receiving end 21 is sent to second receiving lines 653, control unit 64 can be closed first amplifier 6311 and second amplifier 6331, the 4th impedance switch unit 687 also can be closed (off), and the first impedance switch unit 681 and/or the second impedance switch unit 683 and/or the 3rd impedance switch unit 685 then can be opened (on).Make ZLB, ZHB and Zr1 in the operated frequency range of second receiving lines 653, become high impedance, so sending and receiving end 21 and/or antenna element 22 can pass the signal to second receiving lines 653 via the first RX path PATH r2, and avoid consuming signal on other path.
In an embodiment of the present invention, the first emission block 631 comprises one first amplifier 6311 and one first match circuit 6313, and the second emission block 633 comprises one second amplifier 6331 and one second match circuit 6333.The first impedance switch unit 681 and first impedance unit 671 can first match circuit, 6313, the second impedance switch units 683 in parallel and second impedance unit 673 parallel connection second match circuit 6333 then in addition, form similar connected mode shown in Figure 5.
In another embodiment of the present invention, please cooperate consult shown in Figure 9, the emission block can comprise one first emission block 631, one second emission block 633 ... and n emission block 639; Receiving lines can comprise one first receiving lines 651, one second receiving lines 653 ... an and n receiving lines 659.In addition the first emission block 631, the second emission block 633 ..., n emission block 639, first receiving lines 651, one second receiving lines 653 ... and n receiving lines 659 can connect corresponding impedance switch unit and impedance unit respectively.
Described in the present invention connection refers to the direct connection between one or more objects or the member or connects indirectly, for example can have one or more intermediate links between one or more objects or member.
Described in the system of specification perhaps, must and wording such as variation be not restriction of the present invention.The employed technical term of specification in order to carry out the description of specific embodiment, is not restriction of the present invention mainly.The employed odd number measure word of specification (reaching this as one) also can be a plurality of, unless have clear and definite explanation in specification.For example a mentioned device of specification can include the combination of two or more devices, and the material that specification is carried then can include the mixing of multiple material.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (18)
1. a less radio-frequency front-end module is characterized in that, comprising:
One sending and receiving end;
One first emission block connects this sending and receiving end;
One first impedance unit electrically connects this sending and receiving end or this first emission block;
One impedance switch unit electrically connects this first impedance unit, and switches the connection status between this first impedance unit and this first emission block or this sending and receiving end;
One control unit connects this first emission block, and in order to open or to close this first emission block;
One switch element connects this sending and receiving end;
One second emission block connects this sending and receiving end via this switch element;
One first receiving lines connects this sending and receiving end via this switch element; And
One second receiving lines connects this sending and receiving end via this switch element.
2. less radio-frequency front-end module according to claim 1 is characterized in that, comprises that also an antenna element connects this sending and receiving end.
3. less radio-frequency front-end module according to claim 1 is characterized in that, this control unit connects this second emission block, and in order to open or to close this second emission block.
4. less radio-frequency front-end module according to claim 1 is characterized in that, this first impedance unit connects this first emission block or this sending and receiving end by this impedance switch unit.
5. less radio-frequency front-end module according to claim 1 is characterized in that, an end of this impedance switch unit connects this first impedance unit, and the other end of this impedance switch unit then connects a fixed voltage.
6. a less radio-frequency front-end module is characterized in that, comprising:
One sending and receiving end;
A plurality of emission blocks connect this sending and receiving end;
A plurality of impedance units electrically connect this sending and receiving end or this a plurality of emission blocks;
A plurality of impedance switch units electrically connect this impedance unit, and switch the connection status between this impedance unit and this emission block or this sending and receiving end; One control unit connects this a plurality of emission blocks, and in order to open or to close this a plurality of emission blocks;
One switch element connects this sending and receiving end; And
A plurality of receiving liness connect this sending and receiving end via this switch element.
7. less radio-frequency front-end module according to claim 6 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit and one second impedance unit at least, wherein this first impedance unit electrically connects this sending and receiving end or this first emission block by one first impedance switch unit, and this second impedance unit then electrically connects this sending and receiving end or this second emission block by one second impedance switch unit.
8. less radio-frequency front-end module according to claim 6 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit and one second impedance unit at least, wherein an end of this first impedance unit electrically connects this sending and receiving end or this first emission block, the other end of this first impedance unit connects a fixed voltage by one first impedance switch unit, and an end of this second impedance unit electrically connects this sending and receiving end or this second emission block, and the other end of this second impedance unit connects a fixed voltage by one second impedance switch unit.
9. less radio-frequency front-end module according to claim 7, it is characterized in that, this first emission block comprises one first amplifier and one first match circuit, this second emission block then comprises one second amplifier and one second match circuit, this first impedance unit and this first impedance switch unit this first match circuit in parallel, this second impedance unit and this second impedance switch unit this second match circuit in parallel.
10. a less radio-frequency front-end module is characterized in that, comprising:
One sending and receiving end;
A plurality of receiving liness connect this sending and receiving end;
A plurality of impedance units electrically connect this sending and receiving end or this a plurality of emission blocks;
A plurality of impedance switch units electrically connect this impedance unit, and switch the connection status between this impedance unit and this emission block or this sending and receiving end;
One switch element connects this sending and receiving end; And
A plurality of emission blocks connect this sending and receiving end via this switch element.
11. less radio-frequency front-end module according to claim 10 also comprises a control unit, connects this a plurality of emission blocks, and in order to open or to close this a plurality of emission blocks.
12. less radio-frequency front-end module according to claim 10 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit and one second impedance unit at least, wherein this first impedance unit electrically connects this sending and receiving end or this first receiving lines by one first impedance switch unit, and this second impedance unit then electrically connects this sending and receiving end or this second receiving lines by one second impedance switch unit.
13. less radio-frequency front-end module according to claim 10 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit and one second impedance unit at least, wherein an end of this first impedance unit electrically connects this sending and receiving end or this first receiving lines, the other end of this first impedance unit connects a fixed voltage by one first impedance switch unit, and an end of this second impedance unit electrically connects this sending and receiving end or this second receiving lines, and the other end of this second impedance unit electrically connects a fixed voltage by one second impedance switch unit.
14. a less radio-frequency front-end module is characterized in that, comprising:
One sending and receiving end;
A plurality of emission blocks connect this sending and receiving end;
One control unit connects this a plurality of emission blocks, and in order to open or to close this a plurality of emission blocks;
A plurality of receiving liness connect this sending and receiving end; And
A plurality of impedance units electrically connect these a plurality of emission blocks and these a plurality of receiving liness respectively; And a plurality of impedance switch units, electrically connect this impedance unit, and switch the connection status between this impedance unit and this emission block or this sending and receiving end, and the connection status between this impedance unit of switching and this receiving lines or this sending and receiving end.
15. less radio-frequency front-end module according to claim 14 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit at least, one second impedance unit, one the 3rd impedance unit and one the 4th impedance unit, wherein this first impedance unit electrically connects this sending and receiving end or this first emission block by one first impedance switch unit, this second impedance unit then electrically connects this sending and receiving end or this second emission block by one second impedance switch unit, the 3rd impedance unit then electrically connects this sending and receiving end or this first receiving lines by one the 3rd impedance switch unit, and the 4th impedance unit then electrically connects this sending and receiving end or this second receiving lines by one the 4th impedance switch unit.
16. less radio-frequency front-end module according to claim 14 is characterized in that, these a plurality of emission blocks comprise one first emission block and one second emission block at least; These a plurality of receiving liness comprise one first receiving lines and one second receiving lines at least; And these a plurality of impedance units comprise one first impedance unit at least, one second impedance unit, one the 3rd impedance unit and one the 4th impedance unit, wherein an end of this first impedance unit electrically connects this sending and receiving end or this first emission block, the other end of this first impedance unit connects a fixed voltage by one first impedance switch unit, one end of this second impedance unit electrically connects this sending and receiving end or this second emission block, the other end of this second impedance unit connects a fixed voltage by one second impedance switch unit, one end of the 3rd impedance unit electrically connects this sending and receiving end or this first receiving lines, the other end of the 3rd impedance unit connects a fixed voltage by one the 3rd impedance switch unit, one end of the 4th impedance unit electrically connects this sending and receiving end or this second receiving lines, and the other end of the 4th impedance unit connects a fixed voltage by one the 4th impedance switch unit.
17. less radio-frequency front-end module according to claim 15, it is characterized in that, this first emission block comprises one first amplifier and one first match circuit, this second emission block then comprises one second amplifier and one second match circuit, this first impedance unit and this first impedance switch unit this first match circuit in parallel, this second impedance unit and this second impedance switch unit this second match circuit in parallel.
18. less radio-frequency front-end module according to claim 14 is characterized in that, these a plurality of impedance units are passive device.
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| CN104682992A (en) * | 2015-01-22 | 2015-06-03 | 络达科技股份有限公司 | Circuit structure of wireless receiving-transmitting chip |
| CN105049077A (en) * | 2015-05-28 | 2015-11-11 | 络达科技股份有限公司 | Broadband front-end device and radio frequency signal filtering method thereof |
| US9887712B2 (en) | 2015-05-28 | 2018-02-06 | Airoha Technology Corp. | Wideband front-end device and RF signal filtering method thereof |
| CN109861734A (en) * | 2019-03-28 | 2019-06-07 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching control method, relevant device and storage medium |
| CN109861734B (en) * | 2019-03-28 | 2022-04-29 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching control method, related equipment and storage medium |
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| CN103227657B (en) | 2015-05-20 |
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Address after: Science Park, Hsinchu, Taiwan, China Road 6-5, building 5 Patentee after: Dafa Technology Co.,Ltd. Address before: Science Park, Hsinchu, Taiwan, China Road 6-5, building 5 Patentee before: AIROHA TECHNOLOGY CORP. |