CN209030207U - A kind of Ka wave band multichannel transmitting-receiving extension set - Google Patents
A kind of Ka wave band multichannel transmitting-receiving extension set Download PDFInfo
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- CN209030207U CN209030207U CN201822036161.2U CN201822036161U CN209030207U CN 209030207 U CN209030207 U CN 209030207U CN 201822036161 U CN201822036161 U CN 201822036161U CN 209030207 U CN209030207 U CN 209030207U
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- local oscillator
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- molecular cell
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Abstract
The utility model provides a kind of Ka wave band multichannel transmitting-receiving extension set, including local oscillator function sub-unit, transceiver channel unit；Local oscillator function sub-unit includes vertical road local oscillator function molecular cell and horizontal road local oscillator function molecular cell, vertical road local oscillator function molecular cell provides the vertical polarization rf excitation signal and vertical polarization local oscillator input signals that complete machine provides to rf excitation signal and local oscillation signal to several transmit-receive sharing channels, and horizontal road local oscillator function molecular cell provides the local oscillator input signals for the horizontal polarization that complete machine provides to local oscillator input signals to several receiving channels；Transceiver channel unit includes several transmit-receive sharing channels, several receiving channels, and the intermediate-freuqncy signal behind transmit-receive sharing channel and receiving channel down coversion exports after synthesizing 1 road to reception intermediate-frequency circuit by power splitter.
Description
Technical field
The utility model relates to a kind of multichannel transmitting-receiving extension set technology, especially a kind of Ka wave band multichannel transmitting-receiving extension set.
Background technique
Ka wave band multichannel transmitting-receiving extension set is used to carry out multistage function point to the radio frequency transmissions of input；Utilize penetrating for input
Frequency local oscillation signal carries out down-converted to the radio frequency receiving signal of input, and amplifies, filters to obtained intermediate-freuqncy signal
It is controlled with AGC, output to signal processing extension set.
Summary of the invention
The purpose of this utility model is to provide a kind of Ka wave band multichannel transmitting-receiving extension sets, including local oscillator function sub-unit, receipts
Send out channel unit；Local oscillator function sub-unit includes vertical road local oscillator function molecular cell and horizontal road local oscillator function molecular cell, vertical road
The vertical polarization rf excitation signal and vertical polarization local oscillator input signals that local oscillator function molecular cell provides complete machine are to several
Transmit-receive sharing channel provides rf excitation signal and local oscillation signal, the horizontal pole that horizontal road local oscillator function molecular cell provides complete machine
The local oscillator input signals of change provide local oscillator input signals to several receiving channels；Transceiver channel unit includes that several transmitting-receivings are total
With channel, several receiving channels, the intermediate-freuqncy signal behind transmit-receive sharing channel and receiving channel down coversion passes through power splitter synthesis 1
Road is exported to after receiving intermediate-frequency circuit.
The utility model carries out the processing such as clipping, low noise amplification, occlusion to the radiofrequency signal of antenna feed-in, and with input
RF local oscillator signal carry out mirror image inhibition be mixed, obtained intermediate-freuqncy signal is amplified, AGC control and filtering etc. handle,
Inter-channel phase consistency is adjusted.Function point, amplification are carried out to the radio frequency transmissions of frequency synthesizer input, output has certain
The transmitting signal of power.The intermediate-freuqncy signal of output has two kinds of operating modes: in the first operational mode, transmit-receive sharing channel
In the input radio frequency signal of sub- receiving channel be down-converted to fIF1, the input radio frequency signal of receiving channel is down-converted to fIF2,
And channel merging is carried out in two polarized signals of the output end to identical frequency；In a second mode of operation, according to control
Signal behavior treatment channel, the signal of the sub- receiving channel in transmit-receive sharing channel or the only letter for the treatment of channel receiving channel
Number, it is down-converted to fIF3.
Detailed description of the invention
Fig. 1 is the function composition block diagram of the utility model.
Fig. 2 is vertical road local oscillator function sub-unit schematic diagram.
Fig. 3 is horizontal road local oscillator function sub-unit schematic diagram.
Fig. 4 is transmit-receive sharing channel schematic diagram.
Fig. 5 is transmission channel schematic diagram.
Fig. 6 is the combinatorial principle figure of sub- receiving channel, receiving channel and intermediate-frequency channel.
Fig. 7 is calibrated channel schematic diagram.
Specific embodiment
In conjunction with Fig. 1, a kind of Ka wave band multichannel transmitting-receiving extension set, including local oscillator function sub-unit, transceiver channel unit.Local oscillator function
Sub-unit includes vertical road local oscillator function molecular cell and horizontal road local oscillator function molecular cell, wherein vertical road local oscillator function molecular cell
Vertical polarization rf excitation signal and vertical polarization local oscillator input signals that complete machine provides are mentioned to several transmit-receive sharing channels
For rf excitation signal and local oscillation signal, the local oscillator for the horizontal polarization that horizontal road local oscillator function molecular cell provides complete machine inputs letter
Number to several receiving channels provide local oscillator input signals；Transceiver channel unit include several transmit-receive sharing channels, several
Receiving channel and 1 calibrated channel, the intermediate-freuqncy signal behind transmit-receive sharing channel and receiving channel down coversion pass through power splitter synthesis 1
Road is exported to after receiving intermediate-frequency circuit.
It is designed in the present embodiment using two local oscillator function sub-units as a module, channel 1 to channel 12 is distinguished
It being designed in channel 13 to channel 24 as a transceiver module, calibrated channel 25 is designed separately as a module,
It so altogether include 1 local oscillator function sub-module, 12 transceiver modules and 1 calibration module inside Transceiver.
In conjunction with Fig. 2, vertical road local oscillator function molecular cell includes selection switch and several power splitters.Selection switch selection is vertical
Polarised radiofrequency pumping signal or vertical polarization local oscillator input signals, power splitter will selection switch selection signal function be divided into quantity with
The identical signal of transmit-receive sharing number of channels.In conjunction with Fig. 3, horizontal road local oscillator function molecular cell includes several power splitters, Ruo Gangong
If the local oscillator input signals function of horizontal polarization is divided into main line identical with receiving channel quantity signal by point device.The choosing of local oscillator power splitter
With NC6517C-3436.
Identical 12 channel phase consistency of receiving channel, identical 12 channel phase consistency of transmission channel.12 transmitting-receivings are logical
Road is identical functional module, and theoretically phase is able to maintain unanimously.Due to the limitation of product structure volume and interface position, originally
Vibration power division network has selected the form of Binary Symmetric, selected one-to-two, two point four, four point eight (wherein two-way connects load),
Six point 12 of form guarantees that the transmission path of each function branch path is identical.
The identical 12 interchannel isolation of receiving channel, the identical 12 interchannel isolation of transmission channel:
(1) circuit is isolated: isolation=local oscillator power division network interchannel isolation+amplification of identical 12 interchannel of transmitting
Reverse isolation-amplifier gain of device=(18+35+40-22-18) dB=53dB.(gain of driving amplifier is 22dB,
Reverse isolation is 35dB, and the gain of final power amplifier is 18dB, reverse isolation 40dB)；Receive identical 12 interchannel
Isolation=local oscillator power division network interchannel isolation+this vibration magnifier reverse isolation+frequency mixer radio frequency to local oscillator be isolated-
The gain of this vibration magnifier=(18+35+25-22) dB=56dB.(gain of this vibration magnifier is 18dB, and reverse isolation is
35dB, frequency mixer radio frequency to local oscillator are isolated into 25dB)；
(2) space is isolated: identical 12 channel is all in different individually shielded wire chambers, reduces space spoke to the greatest extent
It penetrates and Space Coupling；
(3) isolated from power: amplifier feed end increases decoupling capacitor or the mode of progress π type filtering is handled, and opens
Control terminal is closed mainly to be handled in such a way that circuit is operated alone in one, each channel.
(4) isolation between local oscillator radio frequency switching time and local oscillator radio frequency: local oscillator and rf inputs use level-one list
Knife biswitch adds level-one hilted broadsword single switch to realize, the isolation of hilted broadsword biswitch is 25dB, and the isolation of hilted broadsword single switch is
35dB, two-stage switch cascade may be implemented isolation greater than 55dB, meet the index request of 50dB.Hilted broadsword single switch and hilted broadsword are double
The rising edge of switch, the index representative value of failing edge are 20ns, while selecting the switch driver of high speed as the drive of switch
The before and after edge delay measured value of dynamic circuit, the driver is 50ns, and the two addition can obtain local oscillator and radio frequency switching time is
70ns。
In conjunction with Fig. 4, transmit-receive sharing channel includes sub- transmission channel and sub- receiving channel, and vertical road local oscillator function molecular cell produces
Raw signal is transmitted to sub- transmission channel or sub- receiving channel by selection switch selection, and transmission channel and receiving channel share
One circulator.
In conjunction with Fig. 5, sub- transmission channel includes sequentially connected first power amplifier, attenuator, the second power amplifier
And circulator；Sub- receiving channel includes sequentially connected circulator, limiter, block switch, low-noise amplifier, mirror image inhibition
Frequency mixer, another input of image-reject mixer terminate the signal that amplified vertical road local oscillator function molecular cell generates.Son
Component part of the transmission channel as transceiver channel, major function is will be through the transmitting signal after local oscillator function sub-unit function point
Power amplification is carried out, is then exported by circulator from port.Power amplifier has selected NC11145C-3337, circulator choosing
With WH3002A2.
In conjunction with Fig. 6, receiving channel includes sequentially connected second limiter, radio frequency block switch, the second low noise amplification
Device, the second image-reject mixer, another input of the second image-reject mixer terminate the local oscillator of amplified horizontal polarization
Input signal.
In conjunction with Fig. 6, intermediate-frequency circuit includes sequentially connected first if bandpas filter, the first intermediate frequency amplifier, numerical control
Attenuator, voltage-adjusting amplifier, the second intermediate frequency amplifier, the second if bandpas filter.
The NC10211C-3337 of 13 institute of electricity in low-noise amplifier selection, limiter select in electric 13
NC1833C-3238, radio frequency block switch have selected absorption hilted broadsword single switch MA4AGSW1A, image-reject mixer selection
HMC-MDB171, electric bridge selected middle electric 13 BW536, the model Xpeedic's that if bandpas filter is selected
XS234, intermediate frequency amplifier selected middle electric 13 NC1016C-103, numerical-control attenuator select in electricity 13
BW17D, voltage-adjusting amplifier selection in electricity 13 BWM291.
In conjunction with Fig. 7, calibrated channel complete major function be the calibration radiofrequency signal of input is amplified output and it is complete
At the calibration of calibrated channel.Calibrated channel design is upper to be designed referring to transceiver channel, emits output power according to calibrated channel
Requirement, need the transmitting rf excitation signal to input to decay, probably need the decaying of 32dB.Receiving branch is according to defeated
Enter the requirement of P-1, the input P-1 of frequency mixer is 8dBm, it is therefore desirable to which before frequency mixer plus 20dB decays, in this way input P-1
It can achieve 30dBm.In order to meet gain requirement, receives intermediate-frequency circuit and transceiver channel is essentially identical.
Claims (6)
1. a kind of Ka wave band multichannel transmitting-receiving extension set, which is characterized in that including local oscillator function sub-unit, transceiver channel unit；
Local oscillator function sub-unit includes vertical road local oscillator function molecular cell and horizontal road local oscillator function molecular cell, wherein
The vertical polarization rf excitation signal and vertical polarization local oscillator input letter that vertical road local oscillator function molecular cell provides complete machine
Number rf excitation signal and local oscillation signal are provided to several transmit-receive sharing channels,
Horizontal road local oscillator function molecular cell mentions the local oscillator input signals for the horizontal polarization that complete machine provides to several receiving channels
For local oscillator input signals；
Transceiver channel unit includes several transmit-receive sharing channels, several receiving channels,
Intermediate-freuqncy signal behind transmit-receive sharing channel and receiving channel down coversion synthesizes 1 road to after receiving intermediate-frequency circuit by power splitter
Output.
2. Ka wave band multichannel transmitting-receiving extension set according to claim 1, which is characterized in that vertical road local oscillator function molecular cell
Including selection switch and several power splitters；Wherein
Selection switch selection vertical polarization rf excitation signal or vertical polarization local oscillator input signals,
The signal function that selection switchs selection is divided into quantity signal identical with transmit-receive sharing number of channels by power splitter.
3. Ka wave band multichannel transmitting-receiving extension set according to claim 1, which is characterized in that horizontal road local oscillator function molecular cell
Including several power splitters, if several power splitters the local oscillator input signals function of horizontal polarization is divided into it is identical with receiving channel quantity
Main line signal.
4. Ka wave band multichannel transmitting-receiving extension set according to claim 1, which is characterized in that transmit-receive sharing channel includes son hair
Channel and sub- receiving channel are penetrated, the signal that vertical road local oscillator function molecular cell generates is transmitted to sub- transmitting by selection switch selection
Channel or sub- receiving channel, and transmission channel and receiving channel share a circulator；
Sub- transmission channel includes sequentially connected first power amplifier, attenuator, the second power amplifier and circulator；
Sub- receiving channel includes sequentially connected circulator, limiter, block switch, low-noise amplifier, mirror image inhibition mixing
Device, another input of image-reject mixer terminate the signal that amplified vertical road local oscillator function molecular cell generates.
5. Ka wave band multichannel transmitting-receiving extension set according to claim 1, which is characterized in that receiving channel includes being sequentially connected
The second limiter, radio frequency block switch, the second low-noise amplifier, the second image-reject mixer, the second mirror image inhibits mixed
Another input of frequency device terminates the local oscillator input signals of amplified horizontal polarization.
6. Ka wave band multichannel transmitting-receiving extension set according to claim 1, which is characterized in that intermediate-frequency circuit includes being sequentially connected
The first if bandpas filter, the first intermediate frequency amplifier, numerical-control attenuator, voltage-adjusting amplifier, the second intermediate frequency amplifier,
Second if bandpas filter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822036161.2U CN209030207U (en) | 2018-12-05 | 2018-12-05 | A kind of Ka wave band multichannel transmitting-receiving extension set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822036161.2U CN209030207U (en) | 2018-12-05 | 2018-12-05 | A kind of Ka wave band multichannel transmitting-receiving extension set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117097266A (en) * | 2023-10-16 | 2023-11-21 | 南京威翔科技有限公司 | Ku frequency band variable bandwidth mixing module |
-
2018
- 2018-12-05 CN CN201822036161.2U patent/CN209030207U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117097266A (en) * | 2023-10-16 | 2023-11-21 | 南京威翔科技有限公司 | Ku frequency band variable bandwidth mixing module |
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Address after: 210000 building 3, no.6, Suyuan Road, Xuanwu District, Nanjing City, Jiangsu Province Patentee after: Nanjing Yubao Technology Co.,Ltd. Address before: 210000 building 3, no.6, Suyuan Road, Xuanwu District, Nanjing City, Jiangsu Province Patentee before: NANJING YOUBEST TECHNOLOGY CO.,LTD. |