CN102355222A - Impedance matching system and impedance matching device - Google Patents
Impedance matching system and impedance matching device Download PDFInfo
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- CN102355222A CN102355222A CN2011101651881A CN201110165188A CN102355222A CN 102355222 A CN102355222 A CN 102355222A CN 2011101651881 A CN2011101651881 A CN 2011101651881A CN 201110165188 A CN201110165188 A CN 201110165188A CN 102355222 A CN102355222 A CN 102355222A
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- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
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Abstract
The embodiment of the invention discloses an impedance matching system and an impedance matching device, wherein the impedance matching system comprises a first impedance circuit, a second impedance circuit and the impedance matching device; and the impedance matching device comprises a reference impedance matching sub-unit, an adjustable fundamental wave tuning circuit sub-unit and an adjustable N-times harmonic wave tuning circuit sub-unit, N is a natural number larger than 1, the reference impedance matching sub-unit and the adjustable fundamental wave tuning circuit sub-unit are used for matching the fundamental wave impedance between the first impedance circuit and the second impedance circuit, and the adjustable N-times harmonic wave tuning circuit sub-unit is used for matching N-times harmonic wave impedance between the first impedance circuit and the second impedance circuit. According to the technical scheme disclosed by the embodiment of the invention, the respective matching for the fundamental wave impedance and the harmonic wave impedance is facilitated to realize, and the debugging complexity for the impedance matching of the circuit is simplified.
Description
Technical field
The present invention relates to electronic technology field, particularly impedance matching system and impedance-matching device.
Background technology
In existing impedance matching system such as communication radio frequency system; Generally can carry out the impedance matching between the different units in the system through impedance matching unit; For example: the impedance of rf load circuit is 50 or 75 ohm; And the impedance of radio frequency amplifier is often less; Just need between radio frequency amplifier and rf load, be connected impedance matching unit, make the output impedance of rf load impedance and radio frequency amplifier be complementary through impedance matching unit.
Impedance matching unit mainly is the circuit that impedance of fundamental frequency is mated at present; Harmonic impedance can influence in the circuit like each item indexs such as gain, power output, linearity and efficient of amplifying circuit like this, and this influence shows particularly evidently in Switch power amplifier and Dao Erdi (Doherty) power amplifier; And existing another kind of impedance matching unit is that the impedance synthesis of impedance of fundamental frequency harmonic consider is formed matching network, but the debugging of this impedance matching network difficulty, will make first-harmonic and each harmonic impedance change simultaneously to the change of matching network.
Summary of the invention
The embodiment of the invention provides impedance matching system and impedance-matching device, so that realize the coupling respectively to the impedance of impedance of fundamental frequency harmonic, simplifies the debugging complexity of circuit impedance coupling.
For solving the problems of the technologies described above, the embodiment of the invention provides following technical scheme:
A kind of impedance matching system comprises:
First impedance circuit, second impedance circuit and impedance-matching device,
Said impedance-matching device comprises: reference impedance coupling subelement, adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement, and said N is the natural number greater than 1;
Said reference impedance coupling subelement is connected in series between said first impedance circuit and second impedance circuit; One end of said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement is ground connection respectively; And after said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement are connected and/or be connected in parallel, be connected in an end of said reference impedance coupling subelement;
Wherein, said reference impedance coupling subelement and adjustable substrate wave impedance coupling subelement are used to mate the impedance of fundamental frequency between said first impedance circuit and second impedance circuit; Said adjustable N subharmonic tuning circuit subelement is used to mate the N subharmonic impedance between said first impedance circuit and second impedance circuit.
A kind of impedance-matching device is used to mate the impedance between first impedance circuit and second impedance circuit, and said impedance-matching device comprises:
Reference impedance coupling subelement, adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement, said N is the natural number greater than 1;
Said reference impedance coupling subelement is connected in series between said first impedance circuit and second impedance circuit; One end of said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement is ground connection respectively; And after said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement are connected and/or be connected in parallel, be connected in an end of said reference impedance coupling subelement;
Wherein, said reference impedance coupling subelement and adjustable substrate wave impedance coupling subelement are used to mate the impedance of fundamental frequency between said first impedance circuit and second impedance circuit; Said adjustable N subharmonic tuning circuit subelement is used to mate the N subharmonic impedance between said first impedance circuit and second impedance circuit.
Therefore; Comprise first impedance circuit, second impedance circuit and impedance-matching device in the impedance matching system of the embodiment of the invention; Wherein, Owing to be respectively to utilize reference impedance coupling subelement and adjustable substrate harmonic tuning circuit subelement in the impedance-matching device that the impedance of fundamental frequency between first and second impedance circuits is mated; And utilize the adjustable N subharmonic tuning circuit subelement in the impedance-matching device that the harmonic impedance between first and second impedance circuits is mated; So just realized coupling respectively to the impedance of impedance of fundamental frequency harmonic; And the coupling respectively of impedance of fundamental frequency harmonic impedance helps simplifying matching process, simplifies the debugging complexity of circuit impedance coupling.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; Accompanying drawing in describing below only is some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of impedance matching system that provides of the embodiment of the invention;
Fig. 2 is the structural representation of the another kind of impedance matching system that provides of the embodiment of the invention;
Fig. 3 is the structural representation of a kind of impedance matching system that provides of application implementation example of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Referring to Fig. 1, a kind of impedance matching system that the embodiment of the invention provides can comprise:
Wherein, adjustable substrate harmonic tuning circuit subelement 303 comprises inductive element and the capacitive element that series connection (or parallel connection) connects, and adjustable N subharmonic tuning circuit subelement 302 all comprises inductive element and the capacitive element that series connection (or parallel connection) connects.
Be the example explanation with the series connection among Fig. 1; In adjustable N time tuning circuit subelement 302; The series connection of its capacitive element 322 (or in parallel) resonant frequency is the N subfrequency; So this adjustable N time tuning circuit subelement 302 is used to mate the N subharmonic impedance between first impedance circuit 10 and second impedance circuit 20; And the inductive element that its inductive element 312 can be regulated for the inductance value that inserts in the adjustable N subharmonic tuning circuit subelement 302; Like this, can change the N subharmonic impedance that impedance-matching device 30 mates by the inductance value of regulating in the inductive element 312 access adjustable N subharmonic tuning circuit subelements 302.In adjustable substrate harmonic tuning circuit subelement 303; The series connection of its capacitive element 323 (or parallel connection) resonance frequency is 1 subfrequency; And the inductive element that its inductive element 313 can be regulated for the inductance value that inserts in the adjustable substrate harmonic tuning circuit unit 303; Like this, can change N the impedance of fundamental frequency that impedance-matching device 30 mates through the inductance value of regulating in the inductive element 313 access adjustable substrate harmonic tuning circuit subelements 303.
Reference impedance coupling subelement 301 is connected in series between first impedance circuit 10 and second impedance circuit 20, and reference impedance coupling subelement 301 and adjustable substrate harmonic tuning circuit subelement 303 are used for the impedance of fundamental frequency between first impedance circuit 10 and second impedance circuit 20 is mated.Wherein, What impedance matching referred to is exactly; Make between the output impedance of impedance (being load impedance) and first impedance circuit 10 of second impedance circuit 20 and satisfy specific matching relationship; And the purpose of impedance-matching device 30 is set, make win impedance circuit 10 and second impedance circuit 20 realize impedance matchings exactly.
Adjustable N subharmonic tuning circuit subelement 302 is connected with ground wire respectively with an end of adjustable substrate harmonic tuning circuit subelement 303, inductive element in the adjustable substrate harmonic tuning circuit subelement and an end that can be connected in reference impedance coupling subelement 301 after the inductive element in the adjustable N subharmonic tuning circuit subelement 302 is connected each other and/or is connected in parallel.
For instance, for example the inductive element and the capacitive element that comprise of adjustable substrate harmonic tuning circuit subelement 303 is connected in series, and the inductive element and the capacitive element that comprise in the adjustable N subharmonic tuning circuit subelement 302 are connected in series; Wherein, be connected in an end of reference impedance coupling subelement 301 after the inductive element of the inductive element of this adjustable N subharmonic tuning circuit subelement 302 and adjustable substrate harmonic tuning circuit subelement 303 is connected in series; Capacitive element in adjustable N subharmonic tuning circuit subelement 302 and the adjustable substrate harmonic tuning circuit subelement 302 is ground connection respectively.
Impedance-matching device 30 can be taken all factors into consideration the impedance of impedance of fundamental frequency harmonic and mate.Inductive element in the adjustable substrate harmonic tuning circuit subelement 303 and capacitive element can be connected in series, inductive element and capacitive element in the adjustable N subharmonic tuning circuit subelement 302 can be to be connected in series; At this moment, the series resonance frequency of the capacitive element in these two unit is respectively fundamental frequency (i.e. 1 subfrequency) and N subfrequency.Certainly; Inductive element in the adjustable substrate harmonic tuning circuit subelement 303 and capacitive element also can be connected in parallel, inductive element and capacitive element in the adjustable N subharmonic tuning circuit subelement 302 also can be to be connected in parallel; At this moment, the parallel resonance frequency of the capacitive element in these two unit is respectively fundamental frequency (i.e. 1 subfrequency) and N subfrequency.In practical application, the inductance value of inductive element is regulated in adjustable substrate harmonic tuning circuit subelement 303 and the adjustable N subharmonic tuning circuit subelement 302, can realize through the length of regulating in this inductive element place in circuit.
For adjustable N subharmonic tuning circuit subelement 302; When the inductance value that inserts the inductive element 312 of this unit changes; Because the series connection of capacitive element 322 (or parallel connection) resonance frequency is the N subfrequency; The N subharmonic impedance of circuit middle impedance coalignment 30 couplings will change; And can influence the impedance of fundamental frequency in the circuit in theory; Because the variation meeting of high order harmonic component impedance exerts an influence to relative low-order harmonic impedance relatively.In order to eliminate this influence; Configuration adjustable substrate harmonic tuning circuit subelement 303 in the system; Be used for regulating the impedance of fundamental frequency of impedance-matching device 30 couplings; And the basic structure of adjustable substrate harmonic tuning circuit subelement 303 and adjustable N subharmonic tuning circuit subelement 302 possibly be identical, and series connection (or parallel connection) resonance frequency of different is capacitive element in the adjustable substrate harmonic tuning circuit subelement 303 is a fundamental frequency.
Be appreciated that first impedance circuit 10 and second impedance circuit 20 in the above-mentioned impedance matching system can be the circuit that any needs carry out impedance matching, such as amplifier, power tube or voltage controlled oscillator circuit such as (VCO).Inductive element in the impedance-matching device 30 can be microstrip line, or strip line, or the metal connecting line, or components and parts such as inductance etc.; Capacitive element in the impedance-matching device 30 can be microstrip line, or strip line, or components and parts such as electric capacity etc.
Therefore; In the impedance matching system of present embodiment, comprise first impedance circuit, second impedance circuit and impedance-matching device; Reference impedance coupling subelement in the impedance-matching device mates the impedance between first and second impedance circuits; Adjustable N subharmonic tuning circuit subelement can be through regulating the access inductance value of inductive element; Thereby change the harmonic impedance of impedance-matching device; Adjustable substrate harmonic tuning circuit subelement can pass through to regulate the access inductance value of inductive element, thereby changes the impedance of fundamental frequency of impedance-matching device.So just realized coupling respectively, and the debugging of circuit is also fairly simple, i.e. the inductance value of inductive element in the regulating circuit to the impedance of impedance of fundamental frequency harmonic.
In another concrete embodiment; Can comprise two or more adjustable high orders (promptly more than or equal to 2 times) harmonic tuning circuit subelement in the impedance-matching device 30; For example shown in Figure 2; Adjustable N+m subharmonic tuning circuit subelement and adjustable N-nth harmonic tuning circuit subelement (also can include only one of them certainly); And adjustable N+m subharmonic tuning circuit subelement; Adjustable N-nth harmonic tuning circuit subelement; The inductive element of adjustable N subharmonic tuning circuit subelement is connected in series and/or is connected in parallel the back (wherein each other; Among Fig. 2 with each adjustable high order (N-n time; N time; N+m time) inductive element of harmonic tuning circuit subelement is connected in series and is example), be connected in an end of reference impedance coupling subelement 301; Wherein, this n is a natural number for natural number, this m less than N; Adjustable N+m subharmonic tuning circuit subelement is used to mate the N+m subharmonic impedance between first impedance circuit 10 and second impedance circuit 20; Adjustable N-nth harmonic tuning circuit subelement is used to mate the N-n subharmonic impedance between first impedance circuit 10 and second impedance circuit 20.For instance, the high order harmonic component tuning circuit subelement that impedance-matching device 30 comprises for example has, adjustable 2 subharmonic tuning circuit subelements, adjustable 3 subharmonic tuning circuit subelements, adjustable 4 subharmonic tuning circuit subelements or the like.
In practical application; Harmonic impedance is mated can be so that indexs such as the efficient of impedance matching system, power, gain and linearity get a promotion; With efficient is the example explanation; Class B amplifier is except that impedance of fundamental frequency; The high order harmonic component impedance is 0, and its saturation efficiency is 78.5%, if first-harmonic output impedance coupling is suitably regulated; Again its even-order harmonic impedance is become infinity, then its saturation efficiency is 100%.
For ease of the such scheme of better understanding and embodiment of the present invention embodiment, be the annexation that example illustrates each tunable harmonic tuning circuit subelement with a concrete application circuit below.
Please refer to Fig. 3, first impedance circuit is an amplifier in impedance matching system as shown in Figure 3, and second impedance circuit is the load circuit of amplifier, promptly is connected in series in the electric capacity and the resistance of ground wire; In impedance-matching device: reference impedance coupling subelement is the output matching unit; The capacitive element of adjustable second harmonic tuning circuit subelement is C2; Its series resonance frequency is that the capacitive element of second harmonic frequency, adjustable triple-frequency harmonics tuning circuit subelement is C3; Its series resonance frequency is a third harmonic frequencies; The capacitive element of adjustable substrate harmonic tuning circuit subelement is C1; Its series resonance frequency is a fundamental frequency, and the inductive element of three harmonic tuning circuit subelements is a feed line.
The output matching unit is connected between amplifier and the load circuit among Fig. 3; Inductive element in adjustable second harmonic tuning circuit subelement, adjustable triple-frequency harmonics tuning circuit subelement and the adjustable substrate harmonic tuning circuit subelement is after feed line is connected each other; End with the output matching unit is connected again, and the inductive element in each tunable harmonic tuning circuit unit and capacitive element all are connected in series between the end and ground wire of exporting matching unit.So just can insert the inductance value of these tunable harmonic tuning circuit units, thereby change harmonic impedance corresponding in the impedance-matching device, regulate successively to the low-order harmonic impedance, finally accomplish impedance matching from the high order harmonic component impedance through the adjusting inductive element.
In the impedance matching shown in Figure 3 system, the output matching unit is accomplished first-harmonic coupling main between pair amplifier and the load circuit.Through the length of regulating feed line in the adjustable triple-frequency harmonics tuning circuit subelement is the position (promptly adjust the inductance value of in adjustable triple-frequency harmonics tuning circuit subelement inductive element access this adjustable triple-frequency harmonics tuning circuit subelement) of c point on feed line, makes that the triple-frequency harmonics resistance value is 10*j Europe; The length of then regulating feed line in the adjustable second harmonic tuning circuit subelement again is the position (promptly adjust the inductance value of in adjustable second harmonic tuning circuit subelement inductive element access this second harmonic tuning circuit subelement) of b point on feed line; Make that the second harmonic resistance value is 30*j Europe, and triple-frequency harmonics impedance can not be affected (adjusting of low-order harmonic impedance does not influence the high order harmonic component impedance); The length of then regulating feed line in the adjustable substrate harmonic tuning circuit subelement is the position (promptly adjust the inductance value of in adjustable substrate harmonic tuning circuit subelement inductive element access this adjustable substrate harmonic tuning circuit unit) of a point on feed line, finally accomplishes the impedance matching of triple-frequency harmonics, second harmonic and impedance of fundamental frequency.Certainly, in practical application, also be not limited to above-mentioned impedance matching adjusting order of giving an example.
The embodiment of the invention also provides a kind of impedance-matching device, is used to mate the impedance between first impedance circuit and second impedance circuit, and impedance-matching device comprises:
Reference impedance coupling subelement, adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement, above-mentioned N is the natural number greater than 1;
Wherein, reference impedance coupling subelement is connected in series between first impedance circuit and second impedance circuit; One end of above-mentioned adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement is ground connection respectively; And after above-mentioned adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement are connected and/or be connected in parallel, be connected in an end of said reference impedance matching subelement.
Wherein, said reference impedance matching subelement and adjustable substrate wave impedance coupling subelement is used to mate the impedance of fundamental frequency between first impedance circuit and second impedance circuit; Above-mentioned adjustable N subharmonic tuning circuit subelement is used to mate the N subharmonic impedance between first impedance circuit and second impedance circuit.
Under a kind of application scenarios, adjustable substrate harmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Above-mentioned adjustable N subharmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Wherein, the resonance frequency of the capacitive element in the above-mentioned adjustable N subharmonic tuning circuit subelement is the N subfrequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the above-mentioned adjustable N subharmonic tuning circuit subelement; The resonance frequency of the capacitive element in the above-mentioned adjustable substrate harmonic tuning circuit subelement is a fundamental frequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the above-mentioned adjustable substrate harmonic tuning circuit subelement.
Under a kind of application scenarios, inductive element and capacitive element that above-mentioned adjustable substrate harmonic tuning circuit subelement comprises are connected in series, and the inductive element and the capacitive element that comprise in the above-mentioned adjustable N subharmonic tuning circuit subelement are connected in series; Wherein, be connected in an end of said reference impedance matching subelement after the inductive element of the inductive element of above-mentioned adjustable N subharmonic tuning circuit subelement and adjustable substrate harmonic tuning circuit subelement is connected in series; Capacitive element in above-mentioned adjustable N subharmonic tuning circuit subelement and the adjustable substrate harmonic tuning circuit subelement is ground connection respectively.
Under a kind of application scenarios; Impedance-matching device also can comprise: adjustable N+m subharmonic tuning circuit subelement and adjustable N-nth harmonic tuning circuit subelement (perhaps one of them); Wherein, After the inductive element of above-mentioned adjustable N+m subharmonic tuning circuit subelement and adjustable N-nth harmonic tuning circuit subelement is connected in series each other and/or is connected in parallel, be connected in an end of said reference impedance matching subelement; Wherein, said n is for being natural number less than the natural number of N, above-mentioned m; Above-mentioned adjustable N+m subharmonic tuning circuit subelement is used to mate the N+m subharmonic impedance between first impedance circuit and second impedance circuit; Above-mentioned adjustable N-nth harmonic tuning circuit subelement is used to mate the N-n subharmonic impedance between first impedance circuit and second impedance circuit.
In practical application, inductive element can be microstrip line or strip line or metal connecting line or inductance etc.; Capacitive element can be microstrip line or strip line or electric capacity etc.
Be appreciated that first impedance circuit and second impedance circuit in the present embodiment can be the circuit that any needs carry out impedance matching, like amplifier, power tube or voltage controlled oscillator circuit such as (VCO).
Be understandable that the structure of the impedance-matching device in the present embodiment can be like the impedance-matching device among the above-mentioned embodiment 30, dependency structure can be with reference to the associated description of the foregoing description.
To sum up; Comprise first impedance circuit, second impedance circuit and impedance-matching device in the impedance matching system of the embodiment of the invention; Wherein, Owing to be respectively to utilize reference impedance coupling subelement and adjustable substrate harmonic tuning circuit subelement in the impedance-matching device that the impedance of fundamental frequency between first and second impedance circuits is mated; And utilize the adjustable N subharmonic tuning circuit subelement in the impedance-matching device that the harmonic impedance between first and second impedance circuits is mated; So just realized coupling respectively to the impedance of impedance of fundamental frequency harmonic; And the coupling respectively of impedance of fundamental frequency harmonic impedance helps simplifying matching process, simplifies the debugging complexity of circuit impedance coupling.
Simultaneously, can pass through to regulate the access inductance value of inductive element, thereby change the harmonic impedance or the impedance of fundamental frequency of impedance-matching device, the impedance matching process is simple and easy, and is workable.
More than to impedance matching system and impedance-matching device that the embodiment of the invention provided; Carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, to sum up, this description should not be construed as limitation of the present invention.
Claims (10)
1. an impedance matching system is characterized in that, comprising:
First impedance circuit, second impedance circuit and impedance-matching device,
Said impedance-matching device comprises: reference impedance coupling subelement, adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement, and said N is the natural number greater than 1;
Said reference impedance coupling subelement is connected in series between said first impedance circuit and second impedance circuit; One end of said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement is ground connection respectively; And after said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement are connected and/or be connected in parallel, be connected in an end of said reference impedance coupling subelement;
Wherein, said reference impedance coupling subelement and adjustable substrate wave impedance coupling subelement are used to mate the impedance of fundamental frequency between said first impedance circuit and second impedance circuit; Said adjustable N subharmonic tuning circuit subelement is used to mate the N subharmonic impedance between said first impedance circuit and second impedance circuit.
2. impedance matching according to claim 1 system is characterized in that,
Said adjustable substrate harmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Said adjustable N subharmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Wherein, the resonance frequency of the capacitive element in the said adjustable N subharmonic tuning circuit subelement is the N subfrequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the said adjustable N subharmonic tuning circuit subelement; The resonance frequency of the capacitive element in the said adjustable substrate harmonic tuning circuit subelement is a fundamental frequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the said adjustable substrate harmonic tuning circuit subelement.
3. impedance matching according to claim 1 system; It is characterized in that; Inductive element and capacitive element that said adjustable substrate harmonic tuning circuit subelement comprises are connected in series, and the inductive element and the capacitive element that comprise in the said adjustable N subharmonic tuning circuit subelement are connected in series;
Wherein, be connected in an end of said reference impedance coupling subelement after the inductive element of the inductive element of said adjustable N subharmonic tuning circuit subelement and adjustable substrate harmonic tuning circuit subelement is connected in series; Capacitive element in said adjustable N subharmonic tuning circuit subelement and the adjustable substrate harmonic tuning circuit subelement is ground connection respectively.
4. impedance matching according to claim 1 system is characterized in that,
Said impedance-matching device also comprises adjustable N+m subharmonic tuning circuit subelement,
Wherein, after the inductive element of said adjustable N+m subharmonic tuning circuit subelement and said adjustable N subharmonic tuning circuit subelement is connected in series each other and/or is connected in parallel, be connected in an end of said reference impedance coupling subelement; Wherein, said m is a natural number; Said adjustable N+m subharmonic tuning circuit subelement is used to mate the N+m subharmonic impedance between said first impedance circuit and second impedance circuit.
5. impedance matching according to claim 1 system is characterized in that,
Said inductive element is microstrip line or strip line or metal connecting line or inductance;
Said capacitive element is microstrip line or strip line or electric capacity.
6. according to each described system of claim 1 to 5, it is characterized in that said impedance matching system is an amplifier, or power tube, or the voltage controlled oscillator VCO system.
7. an impedance-matching device is used to mate the impedance between first impedance circuit and second impedance circuit, it is characterized in that said impedance-matching device comprises:
Reference impedance coupling subelement, adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement, said N is the natural number greater than 1;
Said reference impedance coupling subelement is connected in series between said first impedance circuit and second impedance circuit; One end of said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement is ground connection respectively; And after said adjustable substrate harmonic tuning circuit subelement and adjustable N subharmonic tuning circuit subelement are connected and/or be connected in parallel, be connected in an end of said reference impedance coupling subelement;
Wherein, said reference impedance coupling subelement and adjustable substrate wave impedance coupling subelement are used to mate the impedance of fundamental frequency between said first impedance circuit and second impedance circuit; Said adjustable N subharmonic tuning circuit subelement is used to mate the N subharmonic impedance between said first impedance circuit and second impedance circuit.
8. impedance-matching device according to claim 7 is characterized in that,
Said adjustable substrate harmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Said adjustable N subharmonic tuning circuit subelement comprises series connection and/or the inductive element and the capacitive element that are connected in parallel; Wherein, the resonance frequency of the capacitive element in the said adjustable N subharmonic tuning circuit subelement is the N subfrequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the said adjustable N subharmonic tuning circuit subelement; The resonance frequency of the capacitive element in the said adjustable substrate harmonic tuning circuit subelement is a fundamental frequency, the inductive element that its inductive element can be regulated for the inductance value that inserts in the said adjustable substrate harmonic tuning circuit subelement.
9. impedance-matching device according to claim 7; It is characterized in that; Inductive element and capacitive element that said adjustable substrate harmonic tuning circuit subelement comprises are connected in series, and the inductive element and the capacitive element that comprise in the said adjustable N subharmonic tuning circuit subelement are connected in series;
Wherein, be connected in an end of said reference impedance coupling subelement after the inductive element of the inductive element of said adjustable N subharmonic tuning circuit subelement and adjustable substrate harmonic tuning circuit subelement is connected in series; Capacitive element in said adjustable N subharmonic tuning circuit subelement and the adjustable substrate harmonic tuning circuit subelement is ground connection respectively.
10. according to each described impedance-matching device of claim 7 to 9, it is characterized in that said impedance-matching device also comprises:
Adjustable N+m subharmonic tuning circuit subelement,
Wherein, after the inductive element of said adjustable N+m subharmonic tuning circuit subelement and said adjustable N subharmonic tuning circuit subelement is connected in series each other and/or is connected in parallel, be connected in an end of said reference impedance coupling subelement; Wherein, said m is a natural number; Said adjustable N+m subharmonic tuning circuit subelement is used to mate the N+m subharmonic impedance between said first impedance circuit and second impedance circuit.
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| CN201110165188.1A CN102355222B (en) | 2011-06-17 | 2011-06-17 | Impedance matching system and impedance matching device |
| PCT/CN2012/077092 WO2012171505A1 (en) | 2011-06-17 | 2012-06-18 | An impedance matching system and apparatus |
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| CN201110165188.1A CN102355222B (en) | 2011-06-17 | 2011-06-17 | Impedance matching system and impedance matching device |
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| CN102355222B (en) * | 2011-06-17 | 2014-09-17 | 上海华为技术有限公司 | Impedance matching system and impedance matching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012171505A1 (en) * | 2011-06-17 | 2012-12-20 | 华为技术有限公司 | An impedance matching system and apparatus |
| CN104753476A (en) * | 2013-12-30 | 2015-07-01 | 国民技术股份有限公司 | Multimode multi-frequency power amplifier |
| CN107209213A (en) * | 2015-01-27 | 2017-09-26 | 高通股份有限公司 | For the method and apparatus of the resistance and reactance that tune wireless power transmission machine test cell |
| CN106792347A (en) * | 2016-11-30 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of electromagnetic type send ﹑ impedances of receiver and sensitivity ganged circuit |
| CN108365832A (en) * | 2017-01-26 | 2018-08-03 | 瑞昱半导体股份有限公司 | The integrated circuit of impedance matching circuit and application impedance matching circuit |
| CN107659277A (en) * | 2017-09-28 | 2018-02-02 | 天津大学 | A kind of double-frequency broadband power amplifier matching circuit for GaN power devices |
| CN112468096A (en) * | 2020-12-11 | 2021-03-09 | 昆山鸿永微波科技有限公司 | Technical method and device for suppressing harmonic waves of millimeter wave power amplifier chip |
| CN112468096B (en) * | 2020-12-11 | 2024-06-14 | 昆山鸿永微波科技有限公司 | Millimeter wave power amplifier chip harmonic suppression technical method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102355222B (en) | 2014-09-17 |
| WO2012171505A1 (en) | 2012-12-20 |
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