CN215498926U

CN215498926U - Multi-channel dot frequency signal source

Info

Publication number: CN215498926U
Application number: CN202121626592.XU
Authority: CN
Inventors: 柴俊标; 卜建明; 谭玉龙
Original assignee: Hangzhou Zhong An Electronics Co ltd
Current assignee: Hangzhou Zhongan Electronics Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-11
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to a signal source technology, and discloses a multi-channel dot frequency signal source, which comprises a main control circuit, a power supply circuit and a radio frequency generation link module, wherein the power supply circuit provides power to the main control circuit and the radio frequency generation link module; the main control circuit controls the radio frequency signal of the radio frequency generation link module. The signal source designed by the utility model can generate high-frequency signals with 2-18G large bandwidth. The radio frequency aging device spans an S wave band, a C wave band, an X wave band and a Ku wave band, can be compatible with a large number of radio frequency aging devices, and has strong practicability. 8 radio frequency signals are output, the frequency consistency and the power consistency of the 8 radio frequency signals are good, the radio frequency signals are communicated with an upper computer, the upper computer controls the frequency and the power of the generated signals, and the control is simple, convenient and fast.

Description

Multi-channel dot frequency signal source

Technical Field

The utility model relates to a signal source technology, in particular to a multichannel dot frequency signal source for an aging TR component.

Background

The demand of modern semiconductor equipment for the frequency and bandwidth of signal sources is higher and higher, and it is difficult for most current signal sources to simultaneously meet the demand of high bandwidth and high frequency. Meanwhile, semiconductor devices are increasingly tending toward high integration and versatility. Conventional signal sources output fewer radio frequency links, and in a multifunctional aging system, a large number of signal sources need to be placed, so that the volume of equipment is seriously occupied, and the layout of the equipment is influenced. Although the single-channel signal source has lower cost than the multi-channel signal source, to achieve the same function, a plurality of single-channel signal sources need to be used, and the superposition cost is much higher than that of the multi-channel signal source. Therefore, the research on the multipath signal source has great significance for improving the performance of the radio frequency semiconductor equipment.

At present, the number of commonly used signal source output radio frequency links is small, a large number of signal sources need to be placed in a multifunctional aging system, the volume of equipment is occupied, and the layout of the equipment is influenced. The frequency is low; high frequency, but low bandwidth; there are fewer output rf links from the signal source.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problems that in the prior art, signal source output radio frequency links are few, a large number of signal sources need to be placed in a multifunctional aging system, the volume of equipment is occupied, and the layout of the equipment is influenced. The frequency is low; high frequency, but low bandwidth; the signal source has the defect of few output radio frequency links, and a multi-channel dot frequency signal source is provided.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

a multi-channel dot frequency signal source comprises a main control circuit and a power supply circuit, and is characterized by further comprising a radio frequency generation link module, wherein the power supply circuit provides power to the main control circuit and the radio frequency generation link module; the main control circuit controls the radio frequency signal of the radio frequency generation link module.

2-18G high-frequency signals with large bandwidth can be generated through the radio frequency generation link module. The radio frequency aging device spans an S wave band, a C wave band, an X wave band and a Ku wave band, can be compatible with a large number of radio frequency aging devices, and has strong practicability.

Preferably, the radio frequency generation link module comprises a phase-locked loop, a program-controlled attenuation circuit, a first amplifying circuit and a power divider; the output end of the phase-locked loop is connected with a microwave switch, the microwave switch carries out sectional processing on the received signals and transmits the signals after the sectional processing to an amplifying circuit, and the amplifying circuit amplifies the received signals; the amplified signals are transmitted to the program-controlled attenuation circuit, the program-controlled attenuation circuit is connected with a second amplification circuit, the second amplification circuit is connected with the power divider, and the power divider is used for equally dividing and outputting the signals.

Preferably, the power divider includes 1 2 power dividers and 2 4 power dividers, and each segment of the 2 power dividers is connected to the 4 power dividers to output 8 paths of signals. By arranging different power dividers, the output of 8 paths of signals with the same frequency and power is realized.

Preferably, the output ends of the 4-way power divider are connected with terminal amplifying circuits. The use of the power divider can equally divide the power of the main path signal into the auxiliary path signal, and meanwhile, the power divider also has insertion loss. Therefore, each of the 8 power division signals has much lower power than the main signal. The output end of the power divider is connected with the terminal amplifying circuit, so that the signals of all paths can reach enough power.

Preferably, the radio frequency generation link module further comprises a third amplifying circuit, one end of the third amplifying circuit is connected with the first amplifying circuit, and the other end of the third amplifying circuit is connected with the program-controlled attenuation circuit.

Preferably, the intelligent control system further comprises an upper computer, and the upper computer is communicated with the main control circuit. The upper computer is used for controlling the frequency and the power of the generated signal, and the control is simple, convenient and quick.

Preferably, the phase locked loop comprises at least 1 voltage controlled oscillator; passing a voltage controlled oscillator within a phase locked loop; producing a large bandwidth signal with a frequency ranging from 1-32G.

Due to the adoption of the technical scheme, the utility model has the remarkable technical effects that: the utility model generates 2-18G high-frequency signals with large bandwidth through the designed signal source; the radio frequency aging device spans an S wave band, a C wave band, an X wave band and a Ku wave band, can be compatible with a large number of radio frequency aging devices, and has strong practicability. 8 paths of radio frequency signals are output, and the frequency consistency and the power consistency of the 8 paths of signals are better; the frequency and the power of the signals generated by the upper computer are controlled by the upper computer, so that the control is simple, convenient and quick.

Drawings

FIG. 1 is a system diagram of the present invention.

Fig. 2 is a diagram of a radio frequency link system of the present invention.

Fig. 3 is a circuit diagram of the power supply circuit of the present invention.

Fig. 4 is a circuit diagram of a master control circuit of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

Example 2

On the basis of embodiment 1, the radio frequency generation link module of this embodiment includes a phase-locked loop, a program-controlled attenuation circuit, a first amplification circuit, and a power divider; the output end of the phase-locked loop is connected with a microwave switch, the microwave switch carries out sectional processing on the received signals and transmits the signals after the sectional processing to an amplifying circuit, and the amplifying circuit amplifies the received signals; the amplified signals are transmitted to the program-controlled attenuation circuit, the program-controlled attenuation circuit is connected with a second amplification circuit, the second amplification circuit is connected with the power divider, and the power divider is used for equally dividing and outputting the signals.

The power divider comprises 1

power divider

2 and 4 power dividers 2, each segment of the power divider 2 is connected with the

power divider

4, and 8 paths of signals are output. By arranging different power dividers, the output of 8 paths of signals with the same frequency and power is realized.

And the output ends of the 4 power dividers are connected with terminal amplifying circuits. The use of the power divider can equally divide the power of the main path signal into the auxiliary path signal, and meanwhile, the power divider also has insertion loss. Therefore, each of the 8 power division signals has much lower power than the main signal. The output end of the power divider is connected with the terminal amplifying circuit, so that the signals of all paths can reach enough power.

The radio frequency generation link module also comprises a third amplifying circuit, wherein one end of the third amplifying circuit is connected with the first amplifying circuit, and the other end of the third amplifying circuit is connected with the program control attenuation circuit.

The phase locked loop comprises at least 1 voltage controlled oscillator; passing a voltage controlled oscillator within a phase locked loop; producing a large bandwidth signal with a frequency ranging from 1-32G.

The processed radio frequency signal is subjected to primary amplification and secondary amplification, the power of the radio frequency signal is greatly increased and can be as high as 22dBm at most. The radio frequency signal after the second-stage amplification enters a programmable attenuator, and the attenuation amount of the radio frequency signal can be controlled by utilizing a single chip microcomputer, so that the radio frequency signal with controllable power is generated. The attenuated signal enters a third stage amplifier for amplification, and the amplifier P1dB is close to 30 dB.

Example 3

On the basis of the above embodiment, the embodiment further comprises an upper computer, and the upper computer is communicated with the main control circuit. The upper computer is used for controlling the frequency and the power of the generated signal, and the control is simple, convenient and quick.

Claims

1. A multi-channel dot frequency signal source comprises a main control circuit and a power supply circuit, and is characterized by further comprising a radio frequency generation link module, wherein the power supply circuit provides power to the main control circuit and the radio frequency generation link module; the main control circuit controls the radio frequency signal of the radio frequency generation link module; the radio frequency generation link module comprises a phase-locked loop, a program-controlled attenuation circuit, a first amplifying circuit and a power divider; the output end of the phase-locked loop is connected with a microwave switch, the microwave switch carries out sectional processing on the received signals and transmits the signals after the sectional processing to an amplifying circuit, and the amplifying circuit amplifies the received signals; the amplified signals are transmitted to the program-controlled attenuation circuit, the program-controlled attenuation circuit is connected with a second amplification circuit, the second amplification circuit is connected with the power divider, and the power divider is used for equally dividing and outputting the signals.

2. The multi-channel dot frequency signal source of claim 1, wherein the power divider includes 1 2 power dividers and 2 4 power dividers, and each segment of the 2 power dividers is connected to the 4 power dividers to output 8 channels of signals.

3. The multi-channel dot frequency signal source of claim 1, wherein the output terminals of the 4-way power divider are connected with a terminal amplifying circuit.

4. The multi-channel dot frequency signal source of claim 1, wherein the rf generation link module further comprises a third amplifier circuit, one end of the third amplifier circuit is connected to the first amplifier circuit, and the other end of the third amplifier circuit is connected to the programmable attenuator circuit.

5. The multi-channel dot frequency signal source of claim 1, further comprising an upper computer, wherein the upper computer is in communication with the master control circuit.

6. A multi-channel dot frequency signal source according to claim 1, characterized in that the phase locked loop comprises at least 1 voltage controlled oscillator.