TWI558115B - Joint source receiver comprising image rejection mixing module - Google Patents

Description

Image rejection mixing module and homology interface including image suppression mixing module Receive

The invention relates to an image rejection mixing module and a receiver comprising the image rejection mixing module, in particular to a receiver using the same signal source at the receiving end and the transmitting end.

The receiver of the conventional optical detection mechanism is a network analyzer, which transmits signals of incident light and reflected light to understand the characteristics of the object to be tested. Taking skin cancer detection as an example, it uses a network analyzer to measure the energy attenuation and phase change after laser light enters the skin tissue, and then calculates the absorption coefficient and the scattering coefficient through an algorithm to determine whether the skin tissue is abnormal.

However, conventional network analyzers are generally expensive and bulky, and are therefore only suitable for testing at specific locations. Furthermore, the conventional network analyzer requires two extremely stable signal sources, otherwise the frequency fluttering will occur after frequency reduction, thereby increasing the difficulty of phase measurement. Therefore, if the receiving end and the transmitting end use the same signal source, the stability of the signal source of the transmitting end can be made less stringent. However, in the architecture in which the same signal source is used at the receiving end and the transmitting end, a large error is easily generated when measuring the amplitude and phase of the reflected light signal, and the reflected light signal has a change in amplitude and phase at the same time. Phase offset problem, so it will not be detected in the actual measurement The phase change caused by the object to be tested cannot be detected or analyzed.

In view of the above problems of the prior art, the object of the present invention is to provide an image rejection mixing module and a homologous receiver including an image rejection mixing module to solve the object to be tested by using an image suppression mixing module. The phase change will be offset by the problem.

According to an aspect of the present invention, a homologous receiver includes: a transmitting module for transmitting a first signal and a second signal, wherein the first signal is used to detect a test object to generate a third signal; and receive The module has a first analog block and a first digital block, and the receiving module comprises: a first mixing unit, which is located in the first analog block of the receiving module, and the first mixing unit is a low frequency oscillation crystal The fourth signal and the third signal provided by the unit are mixed and down-converted to output a fifth signal; and the image suppression mixing module is respectively located in the first analog block and the first digital block of the receiving module. The second analog block and the second digital block, wherein the image suppression mixing module receives the second signal and the fifth signal by the second analog block, and mixes and downs the second signal and the fifth signal Then, the amplitude and phase mismatch caused by the mixing and down-conversion of the second signal and the fifth signal are compensated by the second digital block to output mutually independent upper sideband (USB) signals and lower sideband (LSB) signals.

The receiving module further includes an amplitude detecting unit located in the first digital block, and the amplitude detecting unit is configured to receive the upper sideband signal to detect the amplitude.

The receiving module further includes a phase detecting unit located in the first digital block, the phase detecting unit is configured to receive the lower sideband signal, and compare the lower sideband signal with a reference signal provided by the low frequency oscillation crystal unit. Detect the amount of phase change.

The foregoing transmitting module further includes a signal source and a first splitter, and the first splitter is used for The signal provided by the signal source is divided into a first signal and a second signal.

The image suppression mixing module further includes a first 90 degree mixing unit, a second mixing unit, a third mixing unit and a second demultiplexer located in the second analog block, wherein the first 90 degree mixing unit The second signal splitter is configured to receive the sixth signal and the seventh signal, and the second splitter is configured to divide the second signal into the eighth signal and the ninth signal, and then the second mixing unit uses the sixth signal. After mixing and down-clocking with the eighth signal, the tenth signal is output, and the third mixing unit mixes and down-converts the seventh signal and the ninth signal to output the eleventh signal. In addition, the image suppression mixing module further includes a second 90-degree hybrid unit located in the second digit block, and the second 90-degree hybrid unit is configured to receive the tenth signal and the eleventh signal, and compensate the tenth signal and The amplitude and phase of the eleventh signal do not match to output mutually independent sideband signals and lower sideband signals.

The image suppression mixing module further includes a second mixing unit, a third mixing unit, a second demultiplexer and a third demultiplexer located in the second analog block, wherein the third demultiplexer is used The second signal is divided into the sixth signal and the seventh signal, and the second wave splitter is used to divide the second signal into the eighth signal and the ninth signal, and then the second mixing unit uses the sixth signal and the sixth signal. After the eight signals are mixed and down-converted, the tenth signal is output, and the third mixing unit mixes and down-clocks the seventh signal and the ninth signal to output the eleventh signal. In addition, the image suppression mixing module further includes a second 90-degree hybrid unit located in the second digit block, and the second 90-degree hybrid unit is configured to receive the tenth signal and the eleventh signal, and compensate the tenth signal and The amplitude and phase of the eleventh signal do not match to output mutually independent sideband signals and lower sideband signals.

The image suppression mixing module further includes a second mixing unit, a third mixing unit, a second demultiplexer and a third demultiplexer located in the second analog block, wherein the third demultiplexer is used The second signal is divided into the sixth signal and the seventh signal, and the second wave splitter is used to divide the second signal into the eighth signal and the ninth signal, and then the second mixing unit uses the sixth signal and the sixth signal. After the eight signals are mixed and down-converted, the tenth signal is output, and the third mixing unit mixes and down-clocks the seventh signal and the ninth signal to output the eleventh signal. Among them, the third demultiplexer divides the fifth signal into the twelfth Signal and thirteenth signal. In addition, the image suppression mixing module further includes a fourth mixing unit and a fifth mixing unit located in the second digit block, and the fourth mixing unit and the fifth mixing unit are respectively configured to receive the tenth signal and The eleventh signal, and compensates for the amplitude and phase mismatch of the tenth signal and the eleventh signal, wherein the fourth mixing unit mixes and down-clocks the tenth signal and the twelfth signal, and outputs the upper sideband signal, The five-mixing unit mixes and down-clocks the eleventh signal and the thirteenth signal to output a lower sideband signal.

According to another aspect of the present invention, an image rejection mixing module is provided, comprising: an analog block for receiving a second signal and a fifth signal, and mixing and down-converting the second signal and the fifth signal, The fifth signal is a third signal generated after the first signal is detected by the first signal, and the third signal is mixed and down-converted with the fourth signal provided by a low frequency crystal unit; and the digital block is received. The signal after the second signal and the fifth signal are mixed and down-converted, and the digital block is used to compensate for the amplitude and phase mismatch caused by the mixing and down-conversion of the second signal and the fifth signal to output mutually independent edges. With (USB) signal and lower sideband (LSB) signal.

The analogy block further includes a first 90-degree hybrid unit, a first mixing unit, a second mixing unit, and a first splitter, wherein the first 90-degree hybrid unit is configured to receive the fifth signal to output the sixth a signal and a seventh signal, and the first demultiplexer is configured to divide the second signal into an eighth signal and a ninth signal, and then the first mixing unit mixes and down-converts the sixth signal and the eighth signal to output The tenth signal, the second mixing unit mixes and downs the seventh signal and the ninth signal to output the eleventh signal. In addition, the digital block includes a second 90-degree hybrid unit, and the second 90-degree hybrid unit is configured to receive the tenth signal and the eleventh signal, and compensate for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output Independent of each other with a signal on the side and a signal on the lower side.

The analogy block includes a first mixing unit, a second mixing unit, a first splitter and a second splitter, wherein the second splitter is configured to divide the fifth signal into the sixth signal and the first The seventh signal is used to divide the second signal into the eighth signal and the ninth signal, and then the first mixing unit mixes and downs the sixth signal and the eighth signal to output the tenth signal. Second mix The frequency unit mixes and down-clocks the seventh signal and the ninth signal to output the eleventh signal. In addition, the digital block includes a second 90-degree hybrid unit, and the second 90-degree hybrid unit is configured to receive the tenth signal and the eleventh signal, and compensate for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output Independent of each other with a signal on the side and a signal on the lower side.

The analogy block includes a first mixing unit, a second mixing unit, a first splitter and a second splitter, wherein the second splitter is configured to divide the fifth signal into the sixth signal and the first The seventh signal is used to divide the second signal into the eighth signal and the ninth signal, and then the first mixing unit mixes and downs the sixth signal and the eighth signal to output the tenth signal. The second mixing unit mixes and downs the seventh signal and the ninth signal to output the eleventh signal. The second demultiplexer further divides the fifth signal into the twelfth signal and the thirteenth signal. In addition, the digital block includes a third mixing unit and a fourth mixing unit, and the third mixing unit and the fourth mixing unit are respectively configured to receive the tenth signal and the eleventh signal, and compensate the tenth signal and the first The amplitude and phase of the eleven signals do not match. The third mixing unit mixes and down-clocks the tenth signal and the twelfth signal to output the upper sideband signal. The fourth mixing unit is the eleventh signal and the first mixing unit. After the 13th signal is mixed and down-converted, the lower sideband signal is output.

As described above, the image rejection mixing module of the present invention and the homologous receiver including the image rejection mixing module can have one or more of the following advantages:

(1) The homologous receiver of the present invention uses the digital block of the image rejection mixing module to compensate for the amplitude and phase mismatch caused by signal mixing and down-conversion, so as to solve the amplitude variation caused by the signal unsynchronization.

(2) The homologous receiver of the present invention incorporates an image rejection mixing module to separate the upper sideband (USB) signal and the lower sideband (LSB) signal, thereby solving the problem of the mixer in the homologous receiver. The resulting phase offset problem.

(3) The homologous receiver of the present invention uses a transmission and reception homology architecture, thereby reducing reception The signal source of the machine to simplify the circuit.

For a better understanding and understanding of the technical features and the efficacies of the present invention, the preferred embodiments and the detailed description are as follows.

10‧‧‧ Launching module

11‧‧‧Signal source

12‧‧‧First Splitter

20‧‧‧ receiving module

21‧‧‧First analog block

211‧‧‧First Mixing Unit

212‧‧‧Second mixing unit

213‧‧‧Low-frequency crystal oscillator unit

214‧‧‧ third mixing unit

22‧‧‧first digital block

221‧‧‧Amplitude detection unit

222‧‧‧ phase detection unit

23‧‧‧Image suppression mixing module

231‧‧‧First 90 degree mixing unit

232‧‧‧Second 90 degree mixing unit

233‧‧‧Second splitter

235‧‧‧third splitter

236‧‧‧Four Mixing Unit

237‧‧‧ fifth mixing unit

238‧‧‧Second analogy block

239‧‧‧ second digit block

30‧‧‧Test object

V ₁ , V ₂ , V ₃ , V ₄ , V ₅ , V ₆ , V ₇ , V ₈ , V ₉ , V ₁₀ , V ₁₁ , V ₁₂ , V ₁₃ , V ₆ ', V ₇ ', V ₁₀ ' , V ₁₁ '‧‧‧ signal

V _ref ‧‧‧ reference signal

V _up , V _up ', V _up ‧‧‧ 上上带信号

V _low , V _low ', V _low ‧‧‧

1 is a schematic diagram of a preferred embodiment of a homologous receiver including an image rejection mixer module of the present invention.

2 is a schematic diagram of a first embodiment of an image rejection mixing module of a homologous receiver of the present invention.

3 is a schematic diagram of a second embodiment of an image rejection mixing module of a homologous receiver of the present invention.

4 is a schematic diagram of a third embodiment of an image rejection mixing module of a homologous receiver of the present invention.

Embodiments of the image rejection mixing module and the homologous receiver including the image suppression mixing module according to the present invention will be described below with reference to the related drawings. For ease of understanding, the same components in the following embodiments are The same symbol is used to indicate.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of a preferred embodiment of a homologous receiver including an image rejection mixing module according to the present invention. 2 is a schematic diagram of a first embodiment of an image rejection mixing module of a homologous receiver of the present invention. The homologous receiver of the present invention comprises a transmitting module 10 and a receiving module 20 using the same signal source 11.

The transmission module 10 may comprise, for example, the signal source 11 and the first diplexer 12, a first duplexer 12 to the signal line 11 provided by a source signal is divided into signal signals V ₁ and V _2. The signal V ₁ is used to detect the object to be tested 30 to generate the signal V ₃ , and since the signal V ₁ passes through the object to be tested 30 and then decays into a very small signal V ₃ , the low noise can be added to the receiving module 20 . noise amplifier (Low Noise amplifier, LNA) (not shown) for amplifying the signal V _3.

The receiving module 20 has a first analog block 21 and a first digital block 22, and the receiving module 20 includes at least a first mixing unit 211, an image suppression mixing module 23, an amplitude detecting unit 221, and phase detection. Unit 222. The first mixing unit 211 is located in the first analog block 21 of the receiving module 20, and the first mixing unit 211 mixes and down-converts the signal V ₄ and the signal V ₃ provided by the low-frequency oscillation crystal unit 213. After the output signal V ₅ .

Continuingly, in the first embodiment of the image rejection mixing module 23, the image rejection mixing module 23 has the first analog block 21 and the first digital block 22 of the receiving module 20, respectively. The second analog block 238 and the second digital block 239, and the image suppression mixing module 23 can include the first 90 degree mixing unit 231, the second mixing unit 212, and the third mixing in the second analog block 238. The frequency unit 214 and the second demultiplexer 233.

The first 90-degree hybrid unit 231 is configured to receive the signal V ₅ to output the signal V ₆ and the signal V ₇ such that a phase difference of about 90 degrees is formed between the signal V ₆ and the signal V ₇ , and the second splitter 233 is used to divide the signal V ₂ into a signal V ₈ and a signal V ₉ . Then, the second mixing unit 212 mixes and down-converts the signal V ₆ and the signal V ₈ to output the signal V ₁₀ , and the third mixing unit 214 mixes and down-converts the signal V ₇ and the signal V ₉ to output the signal V. ₁₁ .

In addition, the receiving module 20 can transmit the signals V ₁₀ and V ₁₁ output by the second analog block 238 of the image suppression mixing module 23 to the computer by using a data acquisition (DAQ) card (not shown). The signal operation is performed by using a computer software (such as a graphical programming language LabVIEW) in the first digital block 22 of the receiving module 20.

In other words, the image suppression mixing module 23 can further include a second 90 degree mixing unit 232 located in the second digit block 239, and the second 90 degree mixing unit 232 is configured to receive the signal V ₁₀ and the signal V ₁₁ . The amplitude and phase of the compensation signal V ₁₀ and the signal V ₁₁ do not match to output the mutually independent upper sideband signal V _up and the lower sideband signal V _low .

For example, if the phase difference between the signals V ₁₀ and V ₁₁ output by the second analog block 238 of the image suppression mixing module 23 is 91 degrees, the second image mixing module 23 can be utilized. The second 90 degree mixing unit 232 in the digital block 239 compensates the phase difference between the signals V ₁₀ and V ₁₁ by 1 degree (ie, delays by 89 degrees); and if the image suppresses the second analogy of the mixing module 23 The amplitudes of the signals V ₁₀ and V ₁₁ outputted by the block 238 are attenuated by 1.07 times, and the second 90 degree mixing unit 232 in the second digital block 239 of the image rejection mixing module 23 can be used to transmit the signals V ₁₀ and V. The amplitude of ₁₁ is multiplied by 1.07 times to compensate. In this way, the second digit block 239 of the image rejection mixing module 23 is used to accurately compensate the signal, so that the second digit block 239 can output the upper sideband signal _Vup and the lower sideband signal. V _{low is} cleanly separated, which effectively reduces errors in subsequent amplitude and phase detection.

In addition, the receiving module 20 can further include an amplitude detecting unit 221 and a phase detecting unit 222 located in the first digital block 22 . The amplitude detecting unit 221 is configured to receive the upper sideband signal V _up to detect the amplitude, and the phase detecting unit is configured to receive the lower sideband signal V _low and the lower sideband signal V _low and the low frequency oscillating crystal unit 213 The reference signal V _ref is compared to detect the amount of phase change. Then, the detected amplitude and phase change amount are calculated or analyzed by the algorithm to calculate the absorption coefficient and the scattering coefficient to detect or analyze the characteristics of the object to be tested 30.

Please refer to FIG. 3. FIG. 3 is a schematic diagram of a second embodiment of an image rejection mixing module of a homologous receiver of the present invention. Since the difference between the homologous receivers of FIG. 2 and FIG. 3 is only the image suppression mixing module 23, only the image suppression mixing module 23 will be described below, and the rest will not be described again.

In the second embodiment of the image rejection mixing module 23, the image rejection mixing module 23 can include a second mixing unit 212, a third mixing unit 214, and a second point in the second analog block 238. The wave 233 and the third demultiplexer 235. The third splitter 235 is used to divide the signal V ₅ into the signal V ₆ ' and the signal V ₇ ', and the second splitter 233 is used to divide the signal V ₂ into the signal V ₈ and the signal V. ₉ . Then, the second mixing unit 212 mixes and down-converts the signal V ₆ ′ and the signal V ₈ to output the signal V ₁₀ ′, and the third mixing unit 214 mixes and down-converts the signal V ₇ ′ and the signal V ₉ . Output signal V ₁₁ '.

In other words, the image suppression mixing module 23 can further include a second 90 degree mixing unit 232 located in the second digit block 239, and the second 90 degree mixing unit 232 is configured to receive the signal V ₁₀ ' and the signal V ₁₁ ', and the amplitude and phase of the compensation signal V ₁₀ ' and the signal V ₁₁ ' do not match, so as to output the sideband signal V _up ' and the lower sideband signal V _low ' independently of each other.

Please refer to FIG. 4. FIG. 4 is a schematic diagram of a third embodiment of the image rejection mixing module of the homologous receiver of the present invention. Since the difference between the homologous receivers of FIG. 2, FIG. 3 and FIG. 4 is only the image suppression mixing module 23, only the image suppression mixing module 23 will be described below, and the rest will not be described again.

In the third embodiment of the image rejection mixing module 23, the image rejection mixing module 23 further includes a second mixing unit 212, a third mixing unit 214, and a second point located in the second analog block 238. The wave 233 and the third demultiplexer 235. The third splitter 235 is configured to divide the signal V ₅ into the signal V ₆ ', the signal V ₇ ', the signal V ₁₂ and the signal V ₁₃ , and the second splitter 233 is used to transmit the signal V _{2 .} Divided into signal V ₈ and signal V ₉ . Then, the second mixing unit 212 mixes and down-converts the signal V ₆ ′ and the signal V ₈ to output the signal V ₁₀ ′, and the third mixing unit 214 mixes and down-converts the signal V ₇ ′ and the signal V ₉ . Output signal V ₁₁ '.

In other words, the image rejection mixing module 23 may further include a fourth mixing unit 236 and a fifth mixing unit 237, a fourth mixing unit 236 and a fifth mixing unit 237 located in the second digit block 239. They are used to receive the signal V ₁₀ 'and the signal V ₁₁ ', respectively, and the amplitude and phase of the compensation signal V ₁₀ ' and the signal V ₁₁ ' do not match. The fourth mixing unit 236 mixes and down-converts the signal V ₁₀ ′ and the signal V ₁₂ and outputs the upper sideband signal V _up ”, and the fifth mixing unit 237 mixes the signal V ₁₁ ′ and the signal V _{13 .} And after down-converting, the lower sideband signal V _{low is} output.

The first, second, and third embodiments of the image rejection mixing module 23 are merely exemplary and not limiting, any image suppression mixing module 23 and/or image suppression mixing module 23 The homologous receiver can utilize the digital block to compensate for the signal output by the analog block, which is within the scope of the claimed invention. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

10‧‧‧ Launching module

20‧‧‧ receiving module

21‧‧‧First analog block

211‧‧‧First Mixing Unit

213‧‧‧Low-frequency crystal oscillator unit

22‧‧‧first digital block

221‧‧‧Amplitude detection unit

222‧‧‧ phase detection unit

23‧‧‧Image suppression mixing module

238‧‧‧Second analogy block

239‧‧‧ second digit block

30‧‧‧Test object

V ₁ , V ₂ , V ₃ , V ₄ , V ₅ ‧‧‧ signals

V _ref ‧‧‧ reference signal

V _up ‧‧‧上上带信号

V _low ‧‧‧ under the side with a signal

Claims (17)

A homologous receiver includes: a transmitting module for transmitting a first signal and a second signal, wherein the first signal is used to detect a test object to generate a third signal; and a receiving mode The group has a first analog block and a first digital block, and the receiving module includes: a first mixing unit, located in the first analog block of the receiving module, the first mixing The unit mixes and down-converts a fourth signal provided by a low-frequency oscillating crystal unit with the third signal to output a fifth signal; and an image suppression mixing module, respectively, located in the receiving module a first analog block and a second analog block and a second digital block in the first digital block, wherein the image suppression mixing module receives the second signal from the second analog block and After the second signal is mixed and down-converted by the second signal, and then the second digital block compensates for the mixing and down-conversion of the second signal and the fifth signal Amplitude and phase do not match to output one of the upper sidebands (upper sid Eband, USB) signal and lower sideband (LSB) signal. The homology receiver of claim 1, wherein the receiving module further comprises an amplitude detecting unit located in the first digital block, wherein the amplitude detecting unit is configured to receive the upper sideband signal To detect an amplitude. The homology receiver of claim 1, wherein the receiving module further comprises a phase detecting unit located in the first digit block, wherein the phase detecting unit is configured to receive the lower sideband signal And comparing the lower sideband signal with a reference signal provided by the low frequency oscillation crystal unit to detect a phase change amount. The homologous receiver of claim 1, wherein the transmitting module further comprises a signal source and a first splitter, wherein the first splitter is used to provide the signal provided by the signal source. Divided into the first signal and the second signal. The homologous receiver of claim 1, wherein the image suppression mixing module further comprises a first 90 degree hybrid unit, a second mixing unit, and a second analog block. a third mixing unit and a second demultiplexer, wherein the first 90-degree mixing unit is configured to receive the fifth signal to output a sixth signal and a seventh signal, and the second demultiplexer is used The second signal is divided into an eighth signal and a ninth signal, and then the second mixing unit mixes and down-converts the sixth signal and the eighth signal to output a tenth signal, the third The mixing unit mixes and down-converts the seventh signal and the ninth signal to output an eleventh signal. The homologous receiver of claim 5, wherein the image suppression mixing module further comprises a second 90 degree hybrid unit located in the second digital block, the second 90 degree hybrid unit And receiving the tenth signal and the eleventh signal, and compensating for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output the upper sideband signal and the lower sideband signal independently of each other. The homologous receiver according to claim 1, wherein the image suppression mixing module further comprises a second mixing unit, a third mixing unit, and a first one in the second analog block. a second demultiplexer and a third demultiplexer, wherein the third demultiplexer is configured to divide the fifth signal into a sixth signal and a seventh signal, and the second demultiplexer is configured to The second signal is divided into an eighth signal and a ninth signal, and then the second mixing unit mixes and down-converts the sixth signal and the eighth signal to output a tenth signal, the third mixing The unit mixes and down-converts the seventh signal and the ninth signal to output an eleventh signal. The homologous receiver of claim 7, wherein the image suppression mixing module further comprises a second 90 degree hybrid unit located in the second digital block, the second 90 degree hybrid unit And receiving the tenth signal and the eleventh signal, and compensating for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output the upper sideband signal and the lower sideband signal independently of each other. The homologous receiver of claim 7, wherein the third splitter further divides the fifth signal into a twelfth signal and a thirteenth signal. The homologous receiver of claim 9, wherein the image suppression mixing module further comprises a fourth mixing unit and a fifth mixing unit located in the second digital block, the first The fourth mixing unit and the fifth mixing unit are respectively configured to receive the tenth signal and the eleventh signal, and compensate for the amplitude and phase mismatch of the tenth signal and the eleventh signal, wherein the fourth The mixing unit mixes and down-converts the tenth signal and the twelfth signal to output the upper sideband signal, and the fifth mixing unit mixes and drops the eleventh signal and the thirteenth signal The lower sideband signal is output after the frequency. An image suppression mixing module includes: an analog block for receiving a second signal and a fifth signal, and mixing and down-converting the second signal with the fifth signal, the fifth signal Forming a third signal after detecting a test object by a first signal, and the third signal is mixed and down-converted with a fourth signal provided by a low frequency crystal unit; and a digital block Receiving a signal that is mixed and down-converted by the second signal and the fifth signal, the digital block is configured to compensate for amplitude and phase caused by mixing and down-converting the second signal and the fifth signal Does not match to output one of the upper sideband (USB) signals and the lower sideband (LSB) signals. The image rejection mixing module of claim 11, wherein the analog block further comprises a first 90 degree hybrid unit, a first mixing unit, a second mixing unit, and a first point. The first 90-degree hybrid unit is configured to receive the fifth signal to output a sixth signal and a seventh signal, and the first splitter is configured to divide the second signal into a first The eighth signal and the ninth signal, the first mixing unit mixes and down-converts the sixth signal and the eighth signal, and outputs a tenth signal, the second mixing unit and the seventh signal The ninth signal is mixed and down-converted to output an eleventh signal. The image rejection mixing module of claim 12, wherein the digital block comprises a second 90 degree hybrid unit, and the second 90 degree hybrid unit is configured to receive the tenth signal and the tenth a signal, and compensating for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output the upper sideband signal and the lower sideband signal independent of each other. The image rejection mixing module of claim 11, wherein the analog block comprises a first mixing unit, a second mixing unit, a first demultiplexer and a second demultiplexer. The second splitter is configured to divide the fifth signal into a sixth signal and a seventh signal, and the first splitter is configured to divide the second signal into an eighth signal and a ninth signal, the first mixing unit mixes and downconverts the sixth signal and the eighth signal to output a tenth signal, and the second mixing unit uses the seventh signal and the ninth signal After the mixing and down-conversion, an eleventh signal is output. The image suppression mixing module of claim 14, wherein the digital block comprises a second 90 degree hybrid unit, and the second 90 degree hybrid unit is configured to receive the tenth signal and the tenth a signal, and compensating for the amplitude and phase mismatch of the tenth signal and the eleventh signal to output the upper sideband independent of each other Signal and the underside signal. The image rejection mixing module of claim 14, wherein the second demultiplexer further divides the fifth signal into a twelfth signal and a thirteenth signal. The image suppression mixing module of claim 16, wherein the digital block comprises a third mixing unit and a fourth mixing unit, the third mixing unit and the fourth mixing unit. And receiving the tenth signal and the eleventh signal respectively, and compensating for the amplitude and phase mismatch of the tenth signal and the eleventh signal, wherein the third mixing unit is the tenth signal and the The twelfth signal is mixed and down-converted to output the upper sideband signal, and the fourth mixing unit mixes and down-converts the eleventh signal and the thirteenth signal to output the lower sideband signal.