CN206370819U - Multichannel superwide band amplifier - Google Patents
Multichannel superwide band amplifier Download PDFInfo
- Publication number
- CN206370819U CN206370819U CN201621153025.6U CN201621153025U CN206370819U CN 206370819 U CN206370819 U CN 206370819U CN 201621153025 U CN201621153025 U CN 201621153025U CN 206370819 U CN206370819 U CN 206370819U
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- CN
- China
- Prior art keywords
- diode
- multichannel
- unit
- electric capacity
- combining output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of multichannel superwide band amplifier, including channel selection unit and combining output unit, and at least two-way branch process unit being connected between channel selection unit and combining output unit；Branch process unit includes the amplifying circuit and filter circuit being sequentially connected.The utility model is by by different passages, enabling same amplifier to be operated in the ultra wide band frequency across multiple octaves, while can possess ultralow harmonic wave different frequency signals selection, greatly reduce cost, operation difficulty is reduced, space is saved, weight is reduced.
Description
Technical field
The utility model is related to a kind of multichannel superwide band amplifier.
Background technology
Amplifier is the important component in wireless communication system, and it is mainly used in the receive-transmit system of radio communication.
Common amplifier bandwidth is all narrow, it is impossible to used in ultrabroad band, when bandwidth needs very wide, some can only be used wide
The amplifier of band, and these broad band amplifiers are because span more than one octave, amplifier is being amplified to signal
When, harmonic wave can be produced, the frequency of harmonic wave can be interfered in frequency band range to receiver；Harmonic frequency signal falls
When in the operating frequency range of other neighbouring receivers, the reception system of other receivers can also interfere with.
The volume and weight of traditional multichannel superwide band amplifier is all very big, and cost is also higher, some to weight and
Volume requirement is higher, and requirement can not be met if the fields such as Aero-Space.
Utility model content
The purpose of this utility model is to provide a kind of multichannel superwide band amplifier, is put with solving existing multichannel ultrabroad band
Big body product is big, the problem of cost is high.
In order to solve the above technical problems, the utility model provides a kind of multichannel superwide band amplifier, including channel selecting
Unit and combining output unit, and at least two-way branch process being connected between channel selection unit and combining output unit
Unit；Branch process unit includes the amplifying circuit and filter circuit being sequentially connected.
Further, amplifying circuit includes the first amplifier, balanced device, attenuator and the second amplifier being sequentially connected.
Further, channel selection unit includes at least two-way selection path, and selection path includes the first grounded inductor, the
One diode, the second diode, first resistor and the first electric capacity；First grounded inductor is connected with the anode of the first diode, the
One end of the negative electrode of one diode one end respectively with first resistor, the anode of the second diode and the first electric capacity is connected, and first
The other end of resistance is connected with the first bias voltage, the minus earth of the second diode, and the other end of the first electric capacity is respectively with one
The input connection of road branch process unit.
Further, combining output unit includes at least two-way combining output channel, and combining output channel includes the second electricity
Appearance, the 3rd diode, second resistance, the 4th diode and the second grounded inductor；The sun of second grounded inductor and the 4th diode
Pole is connected, one end of the negative electrode of the 4th diode one end respectively with second resistance, the anode of the 3rd diode and the second electric capacity
Connection, the other end of second resistance is connected with the second bias voltage, the minus earth of the 3rd diode, the other end of the second electric capacity
The output end with branch process unit all the way is connected respectively.
Further, the multichannel superwide band amplifier includes four paths selecting units, combining output unit and branch
Processing unit.
The beneficial effects of the utility model are：The utility model is led to by selecting different frequency signals by different
Road, enables same amplifier to be operated in the ultra wide band frequency across multiple octaves, while can possess ultralow humorous
Ripple, greatly reduces cost, reduces operation difficulty, saves space, reduces weight.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model one embodiment；
Fig. 2 is the schematic diagram of the utility model one embodiment.
Embodiment
Embodiment of the present utility model is described below, in order to which those skilled in the art understand
The utility model, it should be apparent that the utility model is not limited to the scope of embodiment, to the common skill of the art
For art personnel, as long as various change is in the spirit and scope of the present utility model that appended claim is limited and is determined,
These changes are it will be apparent that all utilize the innovation and creation that the utility model is conceived in the row of protection.
Multichannel superwide band amplifier as depicted in figs. 1 and 2, including channel selection unit 01 and combining output unit
02, and at least two-way branch process unit 11 being connected between channel selection unit 01 and combining output unit 02.Branch
Processing unit 11 includes the amplifying circuit and wave filter F1-F4 being sequentially connected, and amplifying circuit includes the first amplification being sequentially connected
Device A11-A41, balanced device Z1-Z4, attenuator E1-E4 and the second amplifier A12-A42.
First amplifier A11-A41 is used to be amplified input signal.Balanced device Z1-Z4 is used for the width to input signal
Degree carries out equilibrium, and because amplifier is different in the gain of different frequency, usually frequency more high-gain is lower, in order to ensure entirety
Performance, makes whole amplifier more flat in the gain of different frequency point, increases by a level equaliser Z1-Z4, and balanced device Z1-Z4 is pair
The relatively low loss of signal of frequency is big, small compared with high loss of signal to frequency, and the gain in different frequency amplifier is balanced with this.
Attenuator E1-E4 is used for the gain for adjusting whole amplification channel, and correction causes because of the difference of transmission line length and amplifier etc.
Different branch gain it is inconsistent.Second amplifier A12-A42 is used to increase the gain of whole amplification channel, due in passage
Balanced device, switch, the loss of wave filter etc. is all larger, and the gain in order to ensure whole amplifier is sufficiently large, it is necessary to after use
Level amplifier increase channel gain.Wave filter F1-F4 be used for amplifier produce harmonic wave filter, make it is amplified after letter
Number harmonic wave is relatively low.
Channel selection unit 01 includes at least two-way selection path, and selection path includes the first grounded inductor L1, the one or two
Pole pipe D11-D41, the second diode D12-D42, first resistor R11-R41 and the first electric capacity C11-C41；First grounded inductor L1
It is connected with the first diode D11-D41 anode, the first diode D11-D41 negative electrode is respectively with first resistor R11-R41's
One end connection of one end, the second diode D12-D42 anode and the first electric capacity C11-C41, first resistor R11-R41's is another
End is connected with the first bias voltage V11-V41, and the second diode D12-D42 minus earth, the first electric capacity C11-C41's is another
The input respectively with branch process unit 11 all the way is held to be connected.
Combining output unit 02 includes at least two-way combining output channel, and combining output channel includes the second electric capacity C12-
C42, the 3rd diode D13-D43, second resistance R12-R42, the 4th diode D14-D44 and the second grounded inductor l2；Second
Grounded inductor L2 is connected with the 4th diode D14-D44 anode, the 4th diode D14-D44 negative electrode respectively with second resistance
One end connection of R12-R42 one end, the 3rd diode D13-D43 anode and the second electric capacity C12-C42, second resistance R12-
The R42 other end is connected with the second bias voltage V12-V42, the 3rd diode D13-D43 minus earth, the second electric capacity C12-
Output end of the C42 other end respectively with branch process unit 11 all the way is connected.
Channel selection unit 01 is used to be selected according to the input signal frequency different with output signal with combining output unit 02
Different passages are selected, switch can select one in four passages.Below by taking four tunnel selection paths as an example, passage is discussed in detail
The operation principle of selecting unit 01：
At bias voltage V11 plus back bias voltage, when bias voltage V21, V31 and V41 add positive bias, because total road passes through the
One grounded inductor meets L1 to ground, and acquiescence ground connection is 0 volt, so voltage is 0 volt on total road, bias voltage V11 adds negative pressure, PIN bis-
Pole pipe D11 cathode voltage（0 volt）More than cathode voltage（Back bias voltage）, according to the forward conduction characteristic of PIN diode, PIN bis-
Pole pipe D11 is in the conduction state, is approximately equal to one section of transmission line, radiofrequency signal can be passed through with loss-free, and PIN diode
D12（PIN diode）Negative pole is grounded, cathode voltage（Back bias voltage）Less than cathode voltage（0 volt）, according to the reverse of PIN diode
Cut-off characteristics, PIN diode D12 is in reverse blocking state, is approximately equal to open circuit, signal can not pass through, Ze Ci roads signal can
Passed through with low-loss, this passage gating.And bias voltage V21, V31 and V41 add positive bias, it can similarly obtain, PIN diode
D21, D31 and D41 are in cut-off state, and PIN diode D22, D23 and D24 are in the conduction state, and signal can not be by these three
Passage, then this three passages be closed, realize function of the control signal by different passages.
The operation principle of the operation principle of combining output unit 02 is identical with the operation principle of channel selection unit 01, herein not
Repeat again.
In addition, being connected between all units of multichannel superwide band amplifier using 50 ohm microstrips, to ensure impedance
Matching.
The utility model is by by different passages, enabling same amplifier to be operated in different frequency signals selection
Across the ultra wide band frequency of multiple octaves, while ultralow harmonic wave can be possessed, cost is greatly reduced, behaviour is reduced
Make difficulty, save space, reduce weight.
Claims (5)
1. a kind of multichannel superwide band amplifier, it is characterised in that including channel selection unit and combining output unit, Yi Jilian
It is connected at least two-way branch process unit between the channel selection unit and combining output unit；The branch process unit
Including the amplifying circuit and filter circuit being sequentially connected.
2. multichannel superwide band amplifier according to claim 1, it is characterised in that the amplifying circuit includes connecting successively
The first amplifier, balanced device, attenuator and the second amplifier connect.
3. multichannel superwide band amplifier according to claim 1, it is characterised in that the channel selection unit is included extremely
Few two-way selection path, the selection path include the first grounded inductor, the first diode, the second diode, first resistor and
First electric capacity；First grounded inductor is connected with the anode of the first diode, and the negative electrode of the first diode is respectively with described
One end connection of one end of one resistance, the anode of the second diode and the first electric capacity, the other end of the first resistor and first
Bias voltage is connected, the minus earth of the second diode, the other end of the first electric capacity respectively with the branch process unit all the way
Input connection.
4. multichannel superwide band amplifier according to claim 1, it is characterised in that the combining output unit is included extremely
Few two-way combining output channel, the combining output channel includes the second electric capacity, the 3rd diode, second resistance, the four or two pole
Pipe and the second grounded inductor；Second grounded inductor is connected with the anode of the 4th diode, the negative electrode difference of the 4th diode
One end, the anode of the 3rd diode and one end of the second electric capacity with the second resistance are connected, the second resistance it is another
End is connected with the second bias voltage, the minus earth of the 3rd diode, the other end of the second electric capacity respectively with the branch all the way
The output end connection of processing unit.
5. according to any described multichannel superwide band amplifier of Claims 1-4, it is characterised in that the multichannel ultrabroad band
Amplifier includes channel selection unit, combining output unit and branch process unit described in four tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153025.6U CN206370819U (en) | 2016-10-31 | 2016-10-31 | Multichannel superwide band amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153025.6U CN206370819U (en) | 2016-10-31 | 2016-10-31 | Multichannel superwide band amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206370819U true CN206370819U (en) | 2017-08-01 |
Family
ID=59389705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621153025.6U Expired - Fee Related CN206370819U (en) | 2016-10-31 | 2016-10-31 | Multichannel superwide band amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206370819U (en) |
-
2016
- 2016-10-31 CN CN201621153025.6U patent/CN206370819U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20201031 |