CN209299256U - A kind of RF power amplification filter assembly of narrow banded transceiver - Google Patents
A kind of RF power amplification filter assembly of narrow banded transceiver Download PDFInfo
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- CN209299256U CN209299256U CN201920247704.7U CN201920247704U CN209299256U CN 209299256 U CN209299256 U CN 209299256U CN 201920247704 U CN201920247704 U CN 201920247704U CN 209299256 U CN209299256 U CN 209299256U
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Abstract
The utility model proposes a kind of RF power amplification filter assemblies of narrow banded transceiver, and radiofrequency signal is divided into two-way power signal by Power Decomposition and match circuit；By the way that power amplification circuit is arranged, by the power amplification of two-way radiofrequency signal to sufficiently large, the intensity of radiofrequency signal is improved；The amplified two-way radiofrequency signal of power amplification circuit is synthesized into signal all the way by power combing and match circuit, the linearity of the final-stage power amplifier under the input of big signal is ensure that, improves the interference free performance of component；By the way that harmonic filter is arranged, sensitivity and the anti-interference ability of entire component with clutter reduction, can be effectively raised；Radio frequency rear end is distributed scattered circuit height and integrated by entire component, minimizes transceiver equipment, component simple operation, realizes that transceiver, receive-transmit isolation reach as high as 70 decibels.
Description
Technical field
The utility model relates to the RF power amplification filter groups of wireless communication field more particularly to a kind of narrow banded transceiver
Part.
Background technique
RF power amplification filter assembly is located at radio frequency rear end, and important component of the radio frequency rear end as transceiver,
Its major function is transmitting ultra-narrow band high-power wireless electric signal, receives extremely faint high-frequency signal, and send it to and penetrate
Frequency front-end circuit；Transceiver determines the dynamic range of transceiver to the adaptability of radio frequency back-end circuit, in the prior art,
The carrier signal distortion factor of transceiver output is larger, strong to the interference performance of other transceivers, and the electricity of radio frequency rear end
The scattered distribution in road so that the volume of radio frequency rear end increases, therefore, to solve the above problems, the utility model provide it is a kind of small-sized
Change, the RF power amplification filter assembly that the linearity is good, harmonics restraint is good.
Utility model content
In view of this, the utility model proposes a kind of miniaturizations, the RF power amplification filter that the linearity is good, harmonics restraint is good
Wave device assembly.
The technical solution of the utility model is achieved in that the utility model provides a kind of penetrating for narrow banded transceiver
Frequency power amplifier filter assembly it include input matching circuit, transmit-receive switch, the first directional coupler, primary frequency selection circuit, low noise
Acoustic amplifier, the second directional coupler, rear class frequency selection circuit and antenna further include a stage power amplifier, secondary power amplification
Device and harmonic filter；
Input matching circuit, a stage power amplifier, two-stage power amplifier, transmit-receive switch, harmonic filter, first are determined
It is sequentially electrically connected to coupler and antenna, transmit-receive switch, primary frequency selection circuit, low-noise amplifier, the second directional coupler
It is sequentially electrically connected with rear class frequency selection circuit.
On the basis of above technical scheme, it is preferred that a stage power amplifier includes the power point being sequentially electrically connected
Solution and match circuit, power amplification circuit and power combing and match circuit, and the electricity being electrically connected with power amplification circuit
Power filter；
Power Decomposition and the electric connection of match circuit and input matching circuit, power combing and match circuit and secondary power
Amplifier is electrically connected.
It is further preferred that a stage power amplifier is identical with the structure of two-stage power amplifier.
It is further preferred that Power Decomposition and match circuit include capacitor C1-C3, transformer T1-T3；
One end of the primary coil of transformer T1 is electrically connected by capacitor C1 and input matching circuit, and transformer T1's is first
The other end of grade coil is electrically connected by one end of the primary coil of capacitor C2 and transformer T3, the secondary coil of transformer T1
One end ground connection, the other end of the secondary coil of transformer T1 is electrical by one end of the primary coil of capacitor C3 and transformer T2
Connection, the other end of the primary coil of the transformer T2 other end with power amplification circuit and the secondary coil of transformer T3 respectively
It is electrically connected, one end of the secondary coil of one end and transformer T3 of the secondary coil of transformer T2 is electrically connected, transformer T2
Secondary coil the other end respectively with the other end of power amplification circuit and the primary coil of transformer T3 be electrically connected.
It is further preferred that power amplification circuit includes capacitor C4-C7, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and resistance R1-R6；
One end of resistance R4 is electrically connected with one end of one end of capacitor C6, the grid of metal-oxide-semiconductor Q1 and resistance R1 respectively, electricity
The other end of resistance R4 is grounded by capacitor C5, and the other end of resistance R1 is electrically connected with the power supply, and the other end of capacitor C6 passes through electricity
The drain electrode for hindering R5 and metal-oxide-semiconductor Q1 is electrically connected, and the source electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2 are electrically connected, one end of resistance R3
It is electrically connected respectively with one end of one end of capacitor C7, the grid of metal-oxide-semiconductor Q2 and resistance R2, the other end and the power supply electricity of resistance R2
Property connection, the other end of resistance R3 is grounded by capacitor C4, and the other end of capacitor C7 is electric by the drain electrode of resistance R6 and metal-oxide-semiconductor Q2
Property connection.
It is further preferred that power combing and match circuit include transformer T4, transformer T5, transformer T6 and capacitor
C8-C11；
One end of the primary coil of transformer T4 one end with the drain electrode of metal-oxide-semiconductor Q1 and the secondary coil of transformer T5 respectively
It is electrically connected, the other end of the primary coil of transformer T4 is electrically connected by capacitor C8 and one end of the primary coil of transformer T6
Connect, one end of the secondary coil of transformer T4 respectively with the drain electrode of metal-oxide-semiconductor Q2, the other end of the secondary coil of transformer T5 and change
One end of the primary coil of depressor T5 is electrically connected, the other end of the secondary coil of the transformer T4 primary with transformer T4 respectively
One end of the secondary coil of one end and transformer T5 of coil is electrically connected, and the other end of the primary coil of transformer T5 passes through electricity
The one end for holding the secondary coil of C9 and transformer T6 is electrically connected, and the other end of the primary coil of transformer T6 passes through capacitor C10
It is electrically connected with two-stage power amplifier, the other end ground connection of the secondary coil of transformer T6, one end of capacitor C11 and transformer
The other end of the primary coil of T6 is electrically connected, the other end ground connection of capacitor C11.
It is further preferred that electric source filter circuit includes capacitor C12-C14 and inductance L1；
The drain electrode of one end of inductance L1 and metal-oxide-semiconductor Q2 are electrically connected, the other end of inductance L1 respectively with capacitor C12 one
End, one end of capacitor C13 and capacitor C14 one end be electrically connected, the other end and capacitor of the other end of capacitor C12, capacitor C13
The other end of C14 is grounded.
On the basis of above technical scheme, it is preferred that harmonic filter includes inductance L18-L21 and capacitor C29-C37；
Inductance L18-L21 is sequentially electrically connected, and capacitor C30, capacitor C32, capacitor C34 and capacitor C35 are corresponded respectively
The both ends of inductance L18-L21 are connected in parallel on, one end of capacitor C29 is electrically connected with one end of transmit-receive switch and inductance L18 respectively, electricity
Hold C31 one end respectively with one end of the other end of inductance L18 and inductance L19 be electrically connected, one end of capacitor C33 respectively with electricity
Feel L19 the other end and inductance L20 one end be electrically connected, one end of capacitor C36 respectively with the other end and inductance of inductance L20
One end of L21 is electrically connected, and one end of inductance C37 is electrically connected with the other end of inductance L21 and the first directional coupler respectively,
The other end of capacitor C29, the other end of capacitor C31, the other end of capacitor C33, the other end of capacitor C36 and capacitor C37 it is another
One end is grounded.
A kind of RF power amplification filter assembly of the narrow banded transceiver of the utility model have compared with the existing technology with
It is lower the utility model has the advantages that
(1) radiofrequency signal after carrying out impedance matching is divided by two-way power signal by Power Decomposition and match circuit,
Small signal can be easily recognized, inhibits external electromagnetic interference, and smaller to external electromagnetic interference, reduces to other
The interference of transceiver improves the linearity of radiofrequency signal；By the way that power amplification circuit is arranged, by the power of two-way radiofrequency signal
It is amplified to sufficiently large, improves the intensity of radiofrequency signal；It is by power combing and match circuit that power amplification circuit is amplified
Two-way radiofrequency signal synthesizes signal all the way, ensure that the linearity of the stage power amplifier under the input of big signal, improves group
The interference free performance of part；
(2) by setting harmonic filter, the sensitivity of entire component with clutter reduction, can be effectively raised and resisted dry
Disturb ability；
(3) radio frequency rear end is distributed scattered circuit height and integrated by entire component, minimizes transceiver equipment, component
Simple operation realizes that transceiver, receive-transmit isolation reach as high as 70 decibels；
(4) working frequency of entire component is 118MHz~137MHz, and outgoing carrier power is 10W ± 1dB, 5W ± 1dB
With tri- gears of 1W ± 1dB；The distortion factor≤5%, modulation degree 90% or 30%.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure chart of the RF power amplification filter assembly of narrow banded transceiver of the utility model；
Fig. 2 is a stage power amplifier in a kind of RF power amplification filter assembly of narrow banded transceiver of the utility model
Circuit diagram；
Fig. 3 is the circuit of harmonic filter in a kind of RF power amplification filter assembly of narrow banded transceiver of the utility model
Figure.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical solution in the utility model embodiment is carried out clear
Chu is fully described by, it is clear that and described embodiment is only a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of RF power amplification filter assembly of narrow banded transceiver of the utility model comprising sequentially
The input matching circuit of electric connection, a stage power amplifier, two-stage power amplifier, transmit-receive switch, harmonic filter, first
Directional coupler and antenna, the transmit-receive switch being sequentially electrically connected, primary frequency selection circuit, low-noise amplifier, the second orientation coupling
Clutch and rear class frequency selection circuit.
Input matching circuit guarantees high-transmission efficiency, high power capacity and low transmission of the signal in radio frequency communications circuitry
Decaying.
One stage power amplifier and two-stage power amplifier, amplify radiofrequency signal, sufficiently large to obtain power
Radiofrequency signal improves the intensity of radiofrequency signal.In the present embodiment, the structure of a stage power amplifier and two-stage power amplifier
It is identical, a stage power amplifier is introduced at this, as shown in Fig. 2, a stage power amplifier includes the power being sequentially electrically connected
Decompose and match circuit, power amplification circuit and power combing and match circuit, and with power amplification circuit and power combing
And the electric source filter circuit that match circuit is electrically connected.
Radiofrequency signal after progress impedance matching is divided into two-way power signal by Power Decomposition and match circuit, can be very
Small signal is readily recognized, inhibits external electromagnetic interference, and lesser electromagnetic interference is generated to outside.In the present embodiment
In, as shown in Fig. 2, Power Decomposition and match circuit include capacitor C1-C3, transformer T1-T3；The primary coil of transformer T1
One end is electrically connected by capacitor C1 and input matching circuit, and the other end of the primary coil of transformer T1 by capacitor C2 and becomes
One end of the primary coil of depressor T3 is electrically connected, one end ground connection of the secondary coil of transformer T1, the secondary wire of transformer T1
The other end of circle is electrically connected by one end of the primary coil of capacitor C3 and transformer T2, the primary coil of transformer T2 it is another
One end is electrically connected with the other end of power amplification circuit and the secondary coil of transformer T3 respectively, the secondary coil of transformer T2
One end and transformer T3 secondary coil one end be electrically connected, the other end of the secondary coil of transformer T2 respectively with power
The other end of the primary coil of amplifying circuit and transformer T3 is electrically connected.Wherein, capacitor C1, capacitor C2 and capacitor C3 are filtering
Radiofrequency signal is divided into two-way power signal by capacitor, transformer T1 realization impedance transformation, transformer T2 and transformer T3.
Power amplification circuit improves the intensity of radiofrequency signal by the power amplification of two-way radiofrequency signal to sufficiently large.At this
In embodiment, as shown in Fig. 2, power amplification circuit includes capacitor C4-C7, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and resistance R1-R6；Resistance
One end of R4 is electrically connected with one end of one end of capacitor C6, the grid of metal-oxide-semiconductor Q1 and resistance R1 respectively, the other end of resistance R4
It is grounded by capacitor C5, the other end of resistance R1 is electrically connected with the power supply, and the other end of capacitor C6 passes through resistance R5 and metal-oxide-semiconductor Q1
Drain electrode be electrically connected, the source electrode of the source electrode of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 are electrically connected, one end of resistance R3 respectively with capacitor C7
One end, the grid of metal-oxide-semiconductor Q2 and one end of resistance R2 be electrically connected, the other end of resistance R2 is electrically connected with the power supply, resistance
The other end of R3 is grounded by capacitor C4, and the other end of capacitor C7 is electrically connected by the drain electrode of resistance R6 and metal-oxide-semiconductor Q2.Its
In, resistance R1 and resistance R2 are divider resistance, and resistance R4, resistance R3, capacitor C4 and capacitor C5 are played a filtering role, resistance R5, electricity
Hold the gain factor that C6, resistance R6 and capacitor C7 improve metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2.
The amplified two-way radiofrequency signal of power amplification circuit is synthesized signal all the way, protected by power combing and match circuit
The linearity of the stage power amplifier under the input of big signal has been demonstrate,proved, the interference free performance of component is improved.As shown in Fig. 2, function
Rate synthesis and match circuit include transformer T4, transformer T5, transformer T6 and capacitor C8-C11；The primary coil of transformer T4
One end respectively with one end of the drain electrode of metal-oxide-semiconductor Q1 and the secondary coil of transformer T5 be electrically connected, the primary line of transformer T4
The other end of circle is electrically connected by one end of the primary coil of capacitor C8 and transformer T6, and the one of the secondary coil of transformer T4
End is electric with one end of the primary coil of the drain electrode of metal-oxide-semiconductor Q2, the other end of the secondary coil of transformer T5 and transformer T5 respectively
Property connection, time with one end of the primary coil of transformer T4 and transformer T5 respectively of the other end of the secondary coil of transformer T4
One end of grade coil is electrically connected, and the other end of the primary coil of transformer T5 passes through the secondary coil of capacitor C9 and transformer T6
One end be electrically connected, the other end of the primary coil of transformer T6 is electrically connected by capacitor C10 and two-stage power amplifier,
The other end of the secondary coil of transformer T6 is grounded, and the other end of the primary coil of one end and transformer T6 of capacitor C11 is electrical
Connection, the other end ground connection of capacitor C11.Wherein, transformer T3 and transformer T6 realizes impedance matching function, capacitor C8 and capacitor
C9 is filter capacitor, and two-way radiofrequency signal is synthesized radiofrequency signal all the way by transformer T4.
Electric source filter circuit plays the role of the interference signal that decays.In the present embodiment, as shown in Fig. 2, power filter is electric
Road includes capacitor C12-C14 and inductance L1；One end of inductance L1 and the drain electrode of metal-oxide-semiconductor Q2 are electrically connected, the other end of inductance L1
It is electrically connected respectively with one end of one end of capacitor C12, one end of capacitor C13 and capacitor C14, the other end, the capacitor of capacitor C12
The other end of C13 and the other end of capacitor C14 are grounded.Wherein, inductance L1 plays the role of separated by direct communication, capacitor C12, capacitor
C13 and capacitor C14 play the role of filtering.
Harmonic filter, clutter reduction effectively raise sensitivity and the anti-interference ability of entire component.In this implementation
In example, harmonic filter uses elliptic function filter, and loss is small, strong to clutter suppression capability, specifically, as shown in figure 3,
Harmonic filter includes inductance L18-L21 and capacitor C29-C37；Specifically, inductance L18-L21 is sequentially electrically connected, capacitor
C30, capacitor C32, capacitor C34 and capacitor C35 correspond the both ends for being connected in parallel on inductance L18-L21, one end of capacitor C29 respectively
Respectively with one end of transmit-receive switch and inductance L18 be electrically connected, one end of capacitor C31 respectively with the other end and electricity of inductance L18
The one end for feeling L19 is electrically connected, and one end of capacitor C33 electrically connects with one end of the other end of inductance L19 and inductance L20 respectively
It connects, one end of capacitor C36 is electrically connected with one end of the other end of inductance L20 and inductance L21 respectively, one end point of inductance C37
Be not electrically connected with the other end of inductance L21 and the first directional coupler, the other end of capacitor C29, capacitor C31 the other end,
The other end of the other end of capacitor C33, the other end of capacitor C36 and capacitor C37 is grounded.
First directional coupler detects the power of radiofrequency signal, judges RF power amplification filtering unit according to the result of detection
Working condition.
Antenna, transmitting and modulated radiofrequency signal, and receive extremely faint electromagnetic signal.
Primary frequency selection circuit makes signal within the preset frequency range pass through primary frequency selection circuit, reaches preliminary frequency-selecting
Effect.
Low-noise amplifier amplifies the signal after frequency-selecting.
Second directional coupler detects the size of signal, then accurate signal is further selected into rear class frequency selection circuit,
The signal that clutter is small, low noise is good is provided to modem.
The utility model is by input matching circuit, a stage power amplifier, two-stage power amplifier, transmit-receive switch, harmonic wave
Filter, the first directional coupler, primary frequency selection circuit, low-noise amplifier, the second directional coupler and rear class frequency selection circuit
It is highly integrated, the integrated level and reliability of transceiver are greatly improved, transceiver equipment is minimized, it is easy to operate
Change, realizes the function of transceiver, and receive-transmit isolation reaches as high as 70 decibels, in addition have chosen the device of low-power consumption, make
Whole set equipment calorific value is reduced, and realizes stable working performance, achievees the effect that work normally for a long time.Pass through above-mentioned setting
And circuit, the component operation frequency of the utility model are 118MHz~137MHz, outgoing carrier power be 10W ± 1dB, 5W ±
Tri- gears of 1dB, 1W ± 1dB；The distortion factor≤5%, modulation degree 90% or 30%, carrier power 10W ± 1dB, 5W ± 1dB, 1W
±1dB。
The working principle of the utility model are as follows: the modulated signal that transceiver is brought first is sent into RF power amplification filtering unit
Interior input matching circuit, then through a stage power amplifier and two-stage power amplifier amplification by power amplification to sufficiently large, put
Signal after big gives filter with low insertion loss height and harmonic filter is inhibited to filter out its harmonic noise, is then passed to the progress of the first directional coupler
Power detection is connected according to the result judgment module working condition of detection, then with extraneous antenna；When reception, antenna is big from the external world
Extremely small signal is received in magnetic field, after harmonic filter filtering and the preliminary frequency-selecting of primary frequency selection circuit, is sent into low
Noise amplifier amplification, then the size for detecting signal is inputted in the second directional coupler, rear class frequency selection circuit is finally arrived again into one
Frequency-selecting is walked, provides that clutter is small for modem, the good signal of low noise.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (8)
1. a kind of RF power amplification filter assembly of narrow banded transceiver comprising input matching circuit, transmit-receive switch, first are determined
Exist to coupler, primary frequency selection circuit, low-noise amplifier, the second directional coupler, rear class frequency selection circuit and antenna, feature
In: it further include a stage power amplifier, two-stage power amplifier and harmonic filter；
The input matching circuit, a stage power amplifier, two-stage power amplifier, transmit-receive switch, harmonic filter, first are determined
It is sequentially electrically connected to coupler and antenna, transmit-receive switch, primary frequency selection circuit, low-noise amplifier, the second directional coupler
It is sequentially electrically connected with rear class frequency selection circuit.
2. a kind of RF power amplification filter assembly of narrow banded transceiver as described in claim 1, it is characterised in that: described one
Stage power amplifier includes the Power Decomposition being sequentially electrically connected and match circuit, power amplification circuit and power combing and matching
Circuit, and the electric source filter circuit being electrically connected with power amplification circuit；
The Power Decomposition and the electric connection of match circuit and input matching circuit, power combing and match circuit and secondary power
Amplifier is electrically connected.
3. a kind of RF power amplification filter assembly of narrow banded transceiver as claimed in claim 2, it is characterised in that: described one
Stage power amplifier is identical with the structure of two-stage power amplifier.
4. a kind of RF power amplification filter assembly of narrow banded transceiver as claimed in claim 2, it is characterised in that: the function
Rate is decomposed and match circuit includes capacitor C1-C3, transformer T1-T3；
One end of the primary coil of the transformer T1 is electrically connected by capacitor C1 and input matching circuit, and transformer T1's is first
The other end of grade coil is electrically connected by one end of the primary coil of capacitor C2 and transformer T3, the secondary coil of transformer T1
One end ground connection, the other end of the secondary coil of transformer T1 is electrical by one end of the primary coil of capacitor C3 and transformer T2
Connection, the other end of the primary coil of the transformer T2 other end with power amplification circuit and the secondary coil of transformer T3 respectively
It is electrically connected, one end of the secondary coil of one end and transformer T3 of the secondary coil of transformer T2 is electrically connected, transformer T2
Secondary coil the other end respectively with the other end of power amplification circuit and the primary coil of transformer T3 be electrically connected.
5. a kind of RF power amplification filter assembly of narrow banded transceiver as claimed in claim 4, it is characterised in that: the function
Rate amplifying circuit includes capacitor C4-C7, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 and resistance R1-R6；
One end of the resistance R4 is electrically connected with one end of one end of capacitor C6, the grid of metal-oxide-semiconductor Q1 and resistance R1 respectively, electricity
The other end of resistance R4 is grounded by capacitor C5, and the other end of resistance R1 is electrically connected with the power supply, and the other end of capacitor C6 passes through electricity
The drain electrode for hindering R5 and metal-oxide-semiconductor Q1 is electrically connected, and the source electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2 are electrically connected, one end of resistance R3
It is electrically connected respectively with one end of one end of capacitor C7, the grid of metal-oxide-semiconductor Q2 and resistance R2, the other end and the power supply electricity of resistance R2
Property connection, the other end of resistance R3 is grounded by capacitor C4, and the other end of capacitor C7 is electric by the drain electrode of resistance R6 and metal-oxide-semiconductor Q2
Property connection.
6. a kind of RF power amplification filter assembly of narrow banded transceiver as claimed in claim 5, it is characterised in that: the function
Rate synthesis and match circuit include transformer T4, transformer T5, transformer T6 and capacitor C8-C11；
One end of the primary coil of transformer T4 one end with the drain electrode of metal-oxide-semiconductor Q1 and the secondary coil of transformer T5 respectively
It is electrically connected, the other end of the primary coil of transformer T4 is electrically connected by capacitor C8 and one end of the primary coil of transformer T6
Connect, one end of the secondary coil of transformer T4 respectively with the drain electrode of metal-oxide-semiconductor Q2, the other end of the secondary coil of transformer T5 and change
One end of the primary coil of depressor T5 is electrically connected, the other end of the secondary coil of the transformer T4 primary with transformer T4 respectively
One end of the secondary coil of one end and transformer T5 of coil is electrically connected, and the other end of the primary coil of transformer T5 passes through electricity
The one end for holding the secondary coil of C9 and transformer T6 is electrically connected, and the other end of the primary coil of transformer T6 passes through capacitor C10
It is electrically connected with two-stage power amplifier, the other end ground connection of the secondary coil of transformer T6, one end of capacitor C11 and transformer
The other end of the primary coil of T6 is electrically connected, the other end ground connection of capacitor C11.
7. a kind of RF power amplification filter assembly of narrow banded transceiver as claimed in claim 6, it is characterised in that: the electricity
Power filter includes capacitor C12-C14 and inductance L1；
The drain electrode of one end of the inductance L1 and metal-oxide-semiconductor Q2 are electrically connected, the other end of inductance L1 respectively with capacitor C12 one
End, one end of capacitor C13 and capacitor C14 one end be electrically connected, the other end and capacitor of the other end of capacitor C12, capacitor C13
The other end of C14 is grounded.
8. a kind of RF power amplification filter assembly of narrow banded transceiver as described in claim 1, it is characterised in that: described humorous
Wave filter includes inductance L18-L21 and capacitor C29-C37；
The inductance L18-L21 is sequentially electrically connected, and capacitor C30, capacitor C32, capacitor C34 and capacitor C35 are corresponded respectively
The both ends of inductance L18-L21 are connected in parallel on, one end of capacitor C29 is electrically connected with one end of transmit-receive switch and inductance L18 respectively, electricity
Hold C31 one end respectively with one end of the other end of inductance L18 and inductance L19 be electrically connected, one end of capacitor C33 respectively with electricity
Feel L19 the other end and inductance L20 one end be electrically connected, one end of capacitor C36 respectively with the other end and inductance of inductance L20
One end of L21 is electrically connected, and one end of inductance C37 is electrically connected with the other end of inductance L21 and the first directional coupler respectively,
The other end of capacitor C29, the other end of capacitor C31, the other end of capacitor C33, the other end of capacitor C36 and capacitor C37 it is another
One end is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247704.7U CN209299256U (en) | 2019-02-27 | 2019-02-27 | A kind of RF power amplification filter assembly of narrow banded transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247704.7U CN209299256U (en) | 2019-02-27 | 2019-02-27 | A kind of RF power amplification filter assembly of narrow banded transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209299256U true CN209299256U (en) | 2019-08-23 |
Family
ID=67642812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920247704.7U Active CN209299256U (en) | 2019-02-27 | 2019-02-27 | A kind of RF power amplification filter assembly of narrow banded transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209299256U (en) |
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2019
- 2019-02-27 CN CN201920247704.7U patent/CN209299256U/en active Active
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