CN111766463A - Vector network analyzer and spread spectrum module thereof - Google Patents
Vector network analyzer and spread spectrum module thereof Download PDFInfo
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- CN111766463A CN111766463A CN202010486590.9A CN202010486590A CN111766463A CN 111766463 A CN111766463 A CN 111766463A CN 202010486590 A CN202010486590 A CN 202010486590A CN 111766463 A CN111766463 A CN 111766463A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
Abstract
The invention relates to a vector network analyzer and a frequency spreading module thereof.A radio frequency doubling circuit, a local oscillator frequency doubling circuit and a down-conversion circuit are formed in the frequency spreading module; the radio frequency doubling circuit is connected with a signal input interface and is provided with a plurality of first frequency band channels and a directional coupler arranged at the tail end of each first frequency band channel, and the double directional coupler is also connected with a down-conversion circuit and a test port; the local oscillation frequency doubling circuit is provided with a plurality of second frequency band channels which are in one-to-one correspondence with the frequency bands of the first frequency band channels and are connected to the other signal input interface and the down-conversion circuit; the down-conversion circuit is used for down-converting the forward signal and the reverse signal sampled by the dual directional coupler to form corresponding intermediate frequency signals, and the intermediate frequency signals are respectively output by the two intermediate frequency signal ports. When the system frequency band is switched, the corresponding frequency channel is switched by the radio frequency switch in the spread spectrum module without changing the hardware architecture, and compared with the commercial test scheme of the existing vector network analyzer, the cost is low.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of testing, in particular to a vector network analyzer and a spread spectrum module adopted by the vector network analyzer.
[ background of the invention ]
The wave band of the current new generation mobile communication and automobile automatic driving radar is promoted to the millimeter wave band, and the wave band can be further promoted to the terahertz wave band in the future. The millimeter wave frequency range is 30 GHz-300 GHz, and the millimeter wave frequency range above 300GHz is called a terahertz waveband. Compared with a microwave communication system, the millimeter wave and terahertz wave band with ultrahigh frequency has the advantages of short working wavelength, small equipment volume, light weight, good maneuvering performance, wide frequency band, large capacity, image and digital compatibility, analog-digital compatibility, stronger penetrability of the millimeter wave system to smoke dust and cloud fog, suitability for all-weather work and the like. The advantages enable the millimeter wave communication system to show great advantages in the development fields of accurate guidance, radio frequency investigation, radar remote sensing, meteorological research, modern communication systems and the like.
The products with millimeter wave bands need to be equipped with millimeter wave band testing technology and testing instruments, and the commonly used millimeter wave measuring instruments comprise signal sources, frequency spectrometers, network analyzers and the like.
Network analyzers of millimeter wave bands are provided by Germany, Rode and Shivatz, and Anrie, for example, in 2008, the measurement frequency of a two-port VNA measurement suite provided by Agilent has already reached 325-508GHz, the dynamic range has reached more than 35dB, and the reflection dynamic range has reached more than 20 dB. If a radio frequency instrument with hundreds of GHz is directly configured, the equipment cost is very high, so the common method is to fully utilize the original radio frequency instrument with the conventional microwave frequency band and then adopt the frequency expanding module to increase the radio frequency to the millimeter wave band. For example, an 8510C configuration frequency multiplier and a harmonic mixer of Hewlett packard company can be used for realizing an 80-360 GHz ultra-wideband millimeter wave network analysis test system, the dynamic range of the system reaches 60dB at a frequency below 280GHz, and the dynamic range of reflection reaches 50 dB.
The current mainstream spread spectrum module technology is realized based on a J.Cauffield and R.D.Pollard spread spectrum mode, the mode can utilize the existing measuring instrument resources, the universality is high, the switching of different frequency bands is realized only by selecting the corresponding spread spectrum module without replacing other hardware, and therefore the upgrading cost is effectively reduced.
However, in the existing commercial millimeter wave network analyzer test system, the hardware cost is very high no matter a millimeter wave all-in-one machine or a conventional instrument is adopted to match with the spread spectrum module; the millimeter wave test is realized by matching a conventional instrument with a spread spectrum module, the millimeter wave test can be realized only after connection, software calling and calibration are completed, the millimeter wave test system can only be used for testing one waveband of millimeter waves, the spread spectrum module needs to be replaced when the millimeter wave test system is converted into other wavebands, the millimeter wave test system can be used only by recalibration, optimization is needed to be continued, the test of millimeter wave products with different wavebands is simplified, and the cost is reduced.
[ summary of the invention ]
The invention aims to provide a spread spectrum module which is convenient for testing millimeter wave products in different frequency bands and has lower cost.
Another object of the present invention is to provide a vector network analyzer using the above spread spectrum module.
In order to realize the purpose, the invention adopts the following technical scheme:
as a first aspect, the present invention relates to a spread spectrum module having a radio frequency signal input interface, a local oscillator signal input interface, a reference intermediate frequency signal port, a test intermediate frequency signal port, and a test port for connecting with a device under test; a radio frequency doubling circuit, a local oscillator frequency doubling circuit and a down-conversion circuit connected with the respective output ends of the radio frequency doubling circuit and the local oscillator frequency doubling circuit are formed in the frequency spreading module; the radio frequency doubling circuit is connected with the radio frequency signal input interface, is provided with a plurality of first frequency band channels and a directional coupler which is arranged at the tail end of each first frequency band channel and is used for sampling signals of the frequency band channel to form a forward signal and a reverse signal, and the directional coupler is also connected with a down-conversion circuit and the test port; the local oscillation frequency doubling circuit is connected to the local oscillation signal input interface and is provided with a plurality of second frequency band channels which correspond to the frequency bands of the first frequency band channels one by one, and one end, far away from the local oscillation signal input interface, of each second frequency band channel is connected with the down-conversion circuit; the down-conversion circuit is used for down-converting the forward signal and the reverse signal to form a corresponding reference intermediate frequency signal and a corresponding test intermediate frequency signal, and the reference intermediate frequency signal and the test intermediate frequency signal are correspondingly output through a reference intermediate frequency signal port and a test intermediate frequency signal port.
Preferably, the plurality of first frequency band channels are all connected to the test port through a radio frequency switch, so as to selectively switch and output the required radio frequency signal to the test port through the corresponding channel.
Preferably, the operating frequencies of the first frequency band channels are all between 100KHz and 500GHz, and the plurality of first frequency band channels are covered in a segmented manner within 100KHz to 500 GHz.
Preferably, the signal of each first frequency channel is generated by a path of radio frequency signal input through the radio frequency signal input interface after frequency multiplication in the corresponding frequency channel.
Preferably, in the first frequency band channel, the frequency band channels provided with the frequency multipliers are all provided with filters for filtering harmonics in the working frequency bands of the channels other than the frequency band.
Preferably, the number of the first frequency band channels is eight, and the frequency doubling times corresponding to the eight channels are one, three, six, eight, sixteen and thirty-two times respectively.
Preferably, the radio frequency doubling circuit comprises a radio frequency switch, a frequency multiplier, a filter and a directional coupler; wherein the content of the first and second substances,
two single-pole double-throw switches and one directional coupler are connected to form a first channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of three times, two filters and two directional couplers are connected to form a second channel and a third channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with three times of frequency multiplication, a frequency multiplier with two times of frequency multiplication, a filter and a directional coupler are connected to form a fourth channel;
two single-pole double-throw switches, a frequency multiplier with frequency multiplication times of eight, a filter and a directional coupler are connected to form a fifth channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, a frequency multiplier with frequency multiplication times of two times, two filters and two directional couplers are connected to form a sixth channel and a seventh channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, two frequency multipliers with frequency multiplication times of two times, a filter and a directional coupler are connected to form an eighth channel.
Preferably, eight second frequency band channels are provided, and the frequency doubling times corresponding to the eight channels are one, three, six, eight, sixteen and thirty-two times respectively, and are used for frequency doubling of one local oscillator signal and controlled output of a local oscillator signal with the same frequency as that of the radio frequency doubling circuit through a corresponding frequency band channel to the down-conversion circuit.
Preferably, the directional coupler is a dual directional coupler.
As a second aspect, the present invention relates to a vector network analyzer, including a host and a pair of spread spectrum modules, where the host includes a vector detector, a radio frequency switch, a radio frequency signal source, and a local oscillator signal source;
the spread spectrum module is the spread spectrum module, a radio frequency signal input interface of the spread spectrum module is connected with the radio frequency signal source, a local oscillator signal input interface of the spread spectrum module is connected with the local oscillator signal source, and a reference intermediate frequency signal port and a test intermediate frequency signal port of the two spread spectrum modules are connected to the vector detector through a single-pole four-throw radio frequency switch.
Compared with the prior art, the invention has the following advantages:
in the vector network analyzer, the spread spectrum module is provided with a plurality of frequency band channels, the radio frequency doubling circuit and the local oscillator frequency doubling circuit are both arranged to be capable of doubling the frequency of one signal into signals of different frequency bands and switching the signals by the internal radio frequency switch to be transmitted in the corresponding frequency band channel, and when the frequency bands of the system are switched, the corresponding frequency channels are switched by the internal radio frequency switch of the spread spectrum module.
[ description of the drawings ]
FIG. 1 is a block diagram of a vector network analyzer in accordance with an embodiment of the present invention;
fig. 2 is a block diagram of a spreading module according to an embodiment of the present invention;
FIG. 3 is a block diagram of an RF frequency multiplier circuit according to an embodiment of the present invention;
fig. 4 is a block diagram of a local oscillator frequency multiplier circuit according to an embodiment of the present invention;
fig. 5 is a block diagram of a down-conversion circuit according to an embodiment of the present invention.
[ detailed description ] embodiments
The present invention is further described with reference to the drawings and the exemplary embodiments, wherein like reference numerals are used to refer to like elements throughout. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
Referring to fig. 1 to 5, the present invention relates to a vector network analyzer, which is suitable for testing millimeter wave products of 100kHz to 500 GHz. The vector network analyzer comprises a host 200 and a pair of spread spectrum modules 100 connected with the host 200, wherein the host 200 can adopt a conventional microwave band network analyzer and can also adopt a customized frequency source and amplitude-phase detection system, and the spread spectrum modules 100 are provided with a plurality of channels, for example eight channels, and cover 100 kHz-500 GHz in sections.
Preferably, the host 200 includes four independent coherent frequency sources, a vector detector 203, a single-pole four-throw rf switch, and four intermediate frequency input ports, where the four frequency sources are two rf signal sources 201 and two local oscillator signal sources 202, respectively, the frequencies all cover 100kHz to 26.5GHz, and the four intermediate frequency input ports a1, a2, b1, and b2 correspond to an incident signal reference value of a port 1, an incident signal reference value of a port 2, a reflected signal reference value of a port 1, and a reflected signal reference value of a port 2, respectively.
The spread spectrum module 100 includes a radio frequency multiplication circuit 10, a local oscillator frequency multiplication circuit 20, and a down conversion circuit 30, and has a radio frequency signal input interface 40, a local oscillator signal input interface 50, a reference intermediate frequency signal port 60, a test intermediate frequency signal port 70, and a test port 80. The rf signal input interface 40 is connected to the rf signal source 201, the lo signal input interface 50 is connected to the lo signal source 202, the reference if signal ports 60 of the two spread spectrum modules 10 are connected to the vector detector 203 through the if input ports a1, a2 and the rf switch 204, the two test if signal ports 70 are connected to the vector detector 203 through the if input ports b1, b2 and the rf switch 204, and the test ports 80 of the two spread spectrum modules 10 are used for connecting with two ports of the device under test to output the excitation signal to the device under test and receive the reflected signal and the output signal thereof.
Therefore, the amplitude and the phase of each signal can be obtained by carrying out vector detection on the four intermediate frequency inputs, and the network parameter values can be obtained by post-processing:
all network parameters are vectors, so that amplitude and phase information of the to-be-detected piece is obtained.
The radio frequency doubling circuit 10 is provided with eight first frequency band channels 101-108, the eight first frequency band channels 101-108 cover in a segmented mode at 100 kHz-500 GHz, and the frequencies of two adjacent first frequency band channels are connected.
The eight first frequency band channels are all connected to the rf signal input interface 40 and the test port 80, and preferably, the eight first frequency band channels are connected to the test port 80 by a single-pole eight-throw rf switch, so as to be controllably switched to corresponding channels, so that the corresponding frequency band signals are output from the test port 80.
In addition, the signals of the eight first frequency band channels are formed by frequency doubling of one path of radio frequency signals input from the radio frequency signal input interface 40, the frequency doubling times of the eight first frequency band channels are respectively one time, three times, six times, eight times, sixteen times and thirty-two times, the frequency doubling times of the eight first frequency band channels respectively cover frequency bands of 100 kHz-26.5 GHz, 26 GHz-40 GHz, 40 GHz-60 GHz, 60 GHz-90 GHz, 90 GHz-140 GHz, 140 GHz-220 GHz, 220 GHz-330 GHz and 330 GHz-500 GHz, and when one path of radio frequency signals with the frequency of 100 kHz-26.5 GHz are input into the radio frequency signal input interface 40, excitation signals with corresponding frequencies are output to the test port 80 through different frequency band channels.
Referring to fig. 3, preferably, the radio frequency doubling circuit 10 includes a plurality of single-pole double-throw switches, a plurality of single-pole triple-throw switches, a plurality of frequency multipliers whose frequency doubling times are two times, a frequency multiplier whose frequency doubling times are three times, a frequency multiplier 12 whose frequency doubling times are eight times, and a double-directional coupler 14, where the single-pole double-throw switches and the single-pole triple-throw switches are both radio frequency switches 11, and the double-directional coupler 14 is used for separating forward signals and reverse signals, and has a forward signal port and a reverse signal port.
Wherein, two single-pole double-throw switches and a directional coupler are connected to form a first channel, and the frequency range of the first channel is 100 kHz-26.5 GHz; two single-pole double-throw switches, one single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of three times, two filters and two directional couplers are connected to form a second channel and a third channel which respectively cover two frequency bands of 26 GHz-40 GHz and 40 GHz-60 GHz; two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with three times of frequency multiplication, a frequency multiplier with two times of frequency multiplication, a filter and a directional coupler are connected to form a fourth channel, and the fourth channel covers 60 GHz-90 GHz; two single-pole double-throw switches, a frequency multiplier with frequency multiplication times of eight, a filter and a directional coupler are connected to form a fifth channel covering 90 GHz-140 GHz; two single-pole double-throw switches, one single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, a frequency multiplier with frequency multiplication times of two times, two filters and two directional couplers are connected to form a sixth channel and a seventh channel which respectively cover 140 GHz-220 GHz and 220 GHz-330 GHz; two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, two frequency multipliers with frequency multiplication times of two times, a filter and a directional coupler are connected to form an eighth channel, and the eighth channel covers 330 GHz-500 GHz. Correspondingly, a filter 13 is arranged in the channel provided with the frequency multiplier and used for filtering the harmonic wave of the non-local channel frequency band.
Referring to fig. 4, similarly, the local oscillator frequency doubling circuit 20 is also provided with eight channels, namely eight second frequency band channels 211 to 218, which are also formed by frequency doubling, and the structure of each channel is substantially the same as that of the first frequency band channel of the radio frequency doubling circuit 10, which is not described herein again. When the spread spectrum module 100 inputs a local oscillation signal through the local oscillation signal input interface 50, the local oscillation frequency doubling circuit 20 may selectively switch to output a local oscillation signal having the same frequency band as the radio frequency signal to the down-conversion circuit 30 in the eight channels of the second frequency band.
Referring to fig. 5, the down-conversion circuit 30 is provided with sixteen third frequency channel groups 321-336, each two third frequency channel groups having the same frequency are divided into a group, the frequency bands of the eight groups of third frequency channel groups correspond to the frequency bands of the eight first frequency channel groups one by one, two third frequency channel groups in each group of third frequency channel groups are correspondingly connected to the forward signal port and the reverse signal port of the dual directional coupler at the end of one first frequency channel group, and each group of third frequency channel groups is connected to the second frequency channel of one local oscillator frequency doubling circuit 20, and are used for down-converting the forward and reverse radio frequency signals sampled by the dual directional coupler to an intermediate frequency, after down-conversion, the eight forward signals are subjected to intermediate frequency filtering, and then combined into one path by the radio frequency intermediate frequency switch, representing a transmitted signal a, and are output through the reference signal port; the eight reverse signals are down-converted, subjected to intermediate frequency filtering, combined into one path through a radio frequency switch, namely, a signal b representing the received signal is output through a test intermediate frequency signal port.
In summary, in the vector network analyzer of the present invention, since the spread spectrum module is provided with a plurality of frequency band channels, the radio frequency doubling circuit 10 and the local oscillator doubling circuit 20 are both configured to be doubled by one signal into signals of different frequency bands, and one module can achieve coverage of 100kHz to 500GHz without purchasing a plurality of sets of spread spectrum modules of different frequency bands to complete frequency band coverage. And the internal radio frequency switch switching signal can be transmitted in the corresponding frequency channel, and when the system frequency band is switched, the corresponding frequency channel is switched by the internal radio frequency switch of the spread spectrum module, so that when the instrument is used, the hardware architecture does not need to be changed, the instrument is extremely convenient to be applied to the test of millimeter wave products, and compared with the existing commercial test scheme, the cost is low.
Although a few exemplary embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. A spread spectrum module is provided with a radio frequency signal input interface, a local oscillator signal input interface, a reference intermediate frequency signal port, a test intermediate frequency signal port and a test port for connecting with a device to be tested; the method is characterized in that:
a radio frequency doubling circuit, a local oscillator frequency doubling circuit and a down-conversion circuit connected with the respective output ends of the radio frequency doubling circuit and the local oscillator frequency doubling circuit are formed in the frequency spreading module;
the radio frequency doubling circuit is connected with the radio frequency signal input interface, is provided with a plurality of first frequency band channels and a directional coupler which is arranged at the tail end of each first frequency band channel and is used for sampling signals of the frequency band channel to form a forward signal and a reverse signal, and is also connected with a down-conversion circuit and the test port;
the local oscillation frequency doubling circuit is connected to the local oscillation signal input interface and is provided with a plurality of second frequency band channels which correspond to the frequency bands of the first frequency band channels one by one, and one end, far away from the local oscillation signal input interface, of each second frequency band channel is connected with the down-conversion circuit;
the down-conversion circuit is used for down-converting the forward signal and the reverse signal to form a corresponding reference intermediate frequency signal and a corresponding test intermediate frequency signal, and the reference intermediate frequency signal and the test intermediate frequency signal are correspondingly output through a reference intermediate frequency signal port and a test intermediate frequency signal port.
2. The spread spectrum module of claim 1, wherein each of the first frequency band channels is connected to the test port through a radio frequency switch, so as to selectively switch the corresponding channel to output the desired radio frequency signal to the test port.
3. The spectrum spreading module of claim 2, wherein the operating frequencies of the first band channels are all between 100KHz and 500GHz, and the plurality of first band channels are covered in segments within 100KHz and 500 GHz.
4. The spectrum spreading module of claim 3, wherein the signal of each first frequency channel is generated by frequency multiplication of a radio frequency signal input through the radio frequency signal input interface in the corresponding frequency channel.
5. The spectrum spreading module according to claim 4, wherein in the first frequency channel, the frequency channel provided with the frequency multiplier is provided with a filter for filtering harmonics in a non-local frequency channel operating frequency band.
6. The spectrum spreading module according to claim 4, wherein eight channels of the first frequency band are provided, and the frequency multiplication times corresponding to the eight channels are one, three, six, eight, sixteen and thirty-two times respectively.
7. The spread spectrum module of claim 6, wherein the radio frequency doubling circuit comprises a radio frequency switch, a frequency multiplier, a filter, and a directional coupler; wherein the content of the first and second substances,
two single-pole double-throw switches and one directional coupler are connected to form a first channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of three times, two filters and two directional couplers are connected to form a second channel and a third channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with three times of frequency multiplication, a frequency multiplier with two times of frequency multiplication, a filter and a directional coupler are connected to form a fourth channel;
two single-pole double-throw switches, a frequency multiplier with frequency multiplication times of eight, a filter and a directional coupler are connected to form a fifth channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, a frequency multiplier with frequency multiplication times of two times, two filters and two directional couplers are connected to form a sixth channel and a seventh channel;
two single-pole double-throw switches, a single-pole triple-throw switch, a frequency multiplier with frequency multiplication times of eight times, two frequency multipliers with frequency multiplication times of two times, a filter and a directional coupler are connected to form an eighth channel.
8. The spectrum spreading module according to claim 4, wherein eight second frequency band channels are provided, and the frequency multiplication times corresponding to the eight channels are one, three, six, eight, sixteen, and thirty-two times, respectively, for multiplying one local oscillation signal and controllably outputting the local oscillation signal having the same frequency as that of the radio frequency multiplication circuit to the down conversion circuit through a corresponding one of the frequency band channels.
9. The spread spectrum module of claim 1, wherein the directional coupler is a dual directional coupler.
10. A vector network analyzer comprises a host and a pair of spread spectrum modules, and is characterized in that the host comprises a vector detector, a radio frequency switch, a radio frequency signal source and a local oscillator signal source;
the spread spectrum module is as claimed in any one of claims 1 to 9, wherein a radio frequency signal input interface of the spread spectrum module is connected to the radio frequency signal source, a local oscillator signal input interface of the spread spectrum module is connected to the local oscillator signal source, and a reference intermediate frequency signal port and a test intermediate frequency signal port of the two spread spectrum modules are connected to the vector detector through a single-pole four-throw radio frequency switch.
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| CN202010486590.9A CN111766463A (en) | 2020-06-01 | 2020-06-01 | Vector network analyzer and spread spectrum module thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636843A (en) * | 2020-12-21 | 2021-04-09 | 中国科学院上海微系统与信息技术研究所 | Spread spectrum module and on-chip test system |
| CN113381779A (en) * | 2021-06-15 | 2021-09-10 | 中国科学院上海微系统与信息技术研究所 | Ultra-wideband receiver |
| CN114019364A (en) * | 2021-11-05 | 2022-02-08 | 上海创远仪器技术股份有限公司 | Method, device, processor and storage medium for realizing measurement of on-off time of radio frequency switch based on vector network analyzer structure |
| CN114050871A (en) * | 2021-11-11 | 2022-02-15 | 北京天地一格科技有限公司 | W-band signal testing method |
| CN114441890A (en) * | 2022-04-08 | 2022-05-06 | 深圳市鼎阳科技股份有限公司 | Network analyzer with ultra-wideband detection gain control |
| CN114553329A (en) * | 2022-04-26 | 2022-05-27 | 苏州华兴源创科技股份有限公司 | Vector network analysis system |
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2020
- 2020-06-01 CN CN202010486590.9A patent/CN111766463A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636843A (en) * | 2020-12-21 | 2021-04-09 | 中国科学院上海微系统与信息技术研究所 | Spread spectrum module and on-chip test system |
| CN112636843B (en) * | 2020-12-21 | 2021-10-26 | 中国科学院上海微系统与信息技术研究所 | Spread spectrum module and on-chip test system |
| CN113381779A (en) * | 2021-06-15 | 2021-09-10 | 中国科学院上海微系统与信息技术研究所 | Ultra-wideband receiver |
| CN114019364A (en) * | 2021-11-05 | 2022-02-08 | 上海创远仪器技术股份有限公司 | Method, device, processor and storage medium for realizing measurement of on-off time of radio frequency switch based on vector network analyzer structure |
| CN114050871A (en) * | 2021-11-11 | 2022-02-15 | 北京天地一格科技有限公司 | W-band signal testing method |
| CN114050871B (en) * | 2021-11-11 | 2023-12-05 | 北京天地一格科技有限公司 | W-band signal testing method |
| CN114441890A (en) * | 2022-04-08 | 2022-05-06 | 深圳市鼎阳科技股份有限公司 | Network analyzer with ultra-wideband detection gain control |
| CN114441890B (en) * | 2022-04-08 | 2022-06-24 | 深圳市鼎阳科技股份有限公司 | Network analyzer with ultra-wideband detection gain control |
| CN114553329A (en) * | 2022-04-26 | 2022-05-27 | 苏州华兴源创科技股份有限公司 | Vector network analysis system |
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