0.8 GHz-40GHz multi-channel multi-mode frequency conversion method and transmit-receive system

Abstract

The invention provides a 0.8 GHz-40GHz multi-channel multi-mode frequency conversion method and a transmitting-receiving system. A multifunctional multi-mode fusion design is used, eight receiving channels and one transmitting channel are reasonably matched for frequency source switching, and three functions of simultaneous working of the transmitting-receiving channels, simultaneous working of multiple receiving channels and independent working of the transmitting channels can be realized; through reasonable scheme design and frequency range planning, the up-down frequency conversion function from 0.8 GHz to 40GHz to 2.1 GHz + / -500MHz is realized by the transmitting and receiving channel, and the antenna has the characteristics of wide application range, ultra wide band and low stray; the transmitting channel and the receiving channel both adopt a two-time frequency mixing scheme, a complete transmitting and receiving function can be completed only by using two frequency sources, the transmitting channel and the receiving channel adopt the same type of filters, switches and mixers, the types of components are reduced, links are simplified, and the system has the characteristics of low cost and high integration level; the transceiver system is designed by adopting a high-integration multifunctional chip, is assembled by adopting a micro-assembly process, and has the characteristics of small size, high reliability and high consistency between channels.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical components, and in particular to a 0.8GHz-40GHz multi-channel multi-mode frequency conversion method and a transceiver system. Background Art

[0002] In recent years, wireless communication technology has developed rapidly, and the carrier frequency coverage used in communication has become wider and wider. The multi-channel miniaturized design, multi-mode multi-function integration, and ultra-wideband frequency coverage of microwave transceiver systems have provided strong support for the further update of wireless communication technology. The main function of the frequency conversion transceiver system is to filter and amplify the microwave signal received by the antenna system and down-convert it to a lower frequency before transmitting it to the digital signal processing system, and on the other hand, up-convert the low-frequency signal of the digital signal processing system to a higher frequency before transmitting it to the antenna subsystem.

[0003] Traditional transceiver systems are highly customized and are mostly designed according to actual usage scenarios. They use a single frequency conversion solution, have a narrow bandwidth, a single functional mode, and poor flexibility. When used in multiple scenarios, they need to be equipped with multiple transceiver systems. It is difficult to achieve the unification of transceiver systems for different application scenarios, and their design and production costs are high. Summary of the invention

[0004] The present invention aims to solve the limitations of the frequency conversion method of the current transceiver system, the narrow application bandwidth, the single functional mode and other problems, and provides a 0.8GHz~40GHz multi-channel multi-mode frequency conversion method and transceiver system, which has the functions of frequency band selection, up and down frequency conversion, gain control, filtering and amplification. According to different application scenarios, the configuration of the multi-channel transceiver channel can realize the three functions of simultaneous operation of the transceiver channel, simultaneous operation of multiple receiving channels, and single operation of the transmitting channel.

[0005] The present invention provides a 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method, comprising the following steps:

[0006] S1. After the 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system is assembled, the transmitting channel C1 and the receiving channel C2 work simultaneously and enter step S2;

[0007] S2 and the local oscillator frequency selection switch connect the frequency source C5 and the point frequency source C6 to the transmitting channel C1 and the receiving channel C2. The transmitting channel C1 and the receiving channel C2 work simultaneously. The transmitting channel C1 receives the 2.1GHz±500MHz signal and performs two up-conversions, filtering, and gain control, and then outputs a 0.8GHz~18GHz range signal or a 18GHz~40GHz range signal. The receiving channel C2 receives the 0.8GHz~40GHz signal, performs two down-conversions, filtering, and gain control, and then outputs a 2.1GHz±500MHz intermediate frequency signal.

[0008] A 0.8GHz-40GHz multi-channel multi-mode frequency conversion method described in the present invention is, as a preferred embodiment, in step S2, the point frequency source C6 outputs three point frequency signals of 10GHz, 19.9GHz and 25GHz by receiving the control instruction of the control circuit C7 and outputs them to the transmitting channel C1 and the receiving channel C2 through the 10GHz-25GHz local oscillator distribution network C4, and the frequency source C5 can output the local oscillator signal of any frequency in the range of 23GHz-40GHz by receiving the control instruction of the control circuit C7 and outputs them to the transmitting channel C1 and the receiving channel C2 through the 23GHz-40GHz local oscillator distribution network;

[0009] The transmitting channel C1 is working, and the intermediate frequency signal of 2.1GHz±500MHz is mixed after being filtered by 2.1GHz bandpass; when the switch turns on the 22GHz bandpass filter, the point frequency source C6 outputs a 19.9GHz point frequency signal; when the switch turns on the 27.1GHz bandpass filter, the point frequency source C6 outputs a 25GHz point frequency signal; the signals output by the 22GHz bandpass filter and the 27.1GHz bandpass filter are mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 to output a signal in the range of 0.8GHz~18GHz; when the switch turns on the 7.9GHz bandpass filter, the point frequency source C6 outputs a 10GHz point frequency signal, and the filtered signal is mixed with the 23.1GHz~38.4GHz local oscillator signal output by the frequency source C5 to output a signal in the range of 18GHz~40GHz;

[0010] The receiving channel C2 works to receive 0.8GHz~40GHz signals. When the switch selects the 0.8GHz~18GHz up-conversion link C22, the received signal passes through the switch filter and is mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 to output the first mixed signal. When the switch turns on the 22GHz bandpass filter, the first mixed signal is mixed with the 19.9GHz local oscillator signal output by the point frequency source C6 and then passes through the 2.1GHz bandpass filter to output a 2.1GHz±500MHz intermediate frequency signal; when the switch turns on the 27.1GHz bandpass filter, the first mixed signal is mixed with the 19.9GHz local oscillator signal output by the point frequency source C6 and then passes through the 2.1GHz bandpass filter to output a 2.1GHz±500MHz intermediate frequency signal. When the 17GHz~40GHz down-conversion link C23 is selected, the received signal is mixed with the 23.1GHz~38.4GHz local oscillator signal output by the frequency source C5 after passing through the switch filter to output the second mixed signal, and the second mixed signal is mixed with the 10GHz point frequency signal output by the point frequency source C6 and then filtered through the 2.1GHz band-pass filter to output the intermediate frequency signal of 2.1GHz±500MHz.

[0011] A 0.8GHz-40GHz multi-channel multi-mode frequency conversion method described in the present invention is, as a preferred embodiment, in step S2, when the transmitting channel C1 is working, the intermediate frequency signal of 2.1GHz±500MHz is mixed after being subjected to 2.1GHz bandpass filtering and low-noise amplification; the signals output by the 22GHz bandpass filter and the 27.1GHz bandpass filter are both low-noise amplified and mixed with the 28GHz-39.5GHz local oscillator signal output by the frequency source C5, and then low-noise amplified and 0.8GHz-18GHz 8-stage switch filtering are performed to output a signal in the range of 0.8GHz-18GHz; the signal after the 7.9GHz bandpass filtering is low-noise amplified and mixed with the 23.1GHz-38.4GHz local oscillator signal output by the frequency source C5, and then low-noise amplified and 17GHz-40GHz 5-stage switch filtering are performed to output a signal in the range of 18GHz-40GHz;

[0012] In step S2, when the receiving channel C2 is working, the 0.8 GHz to 40 GHz radio frequency signal is filtered through the 0.8 GHz to 18 GHz 8-segment switch to output a 0.8 GHz to 18 GHz signal, and is filtered through the 17 GHz to 40 GHz 5-segment switch to output a 17 GHz to 40 GHz signal;

[0013] The 0.8GHz~18GHz signal is mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 after low-noise amplification and digital-controlled attenuation. When the RF signal range is 0.8GHz~12GHz, the switch turns on the 27.1GHz band-pass filter and performs low-noise amplification, then mixes with the 25GHz local oscillator signal output by the point frequency source C6, performs low-noise amplification, and digital-controlled attenuation, and then outputs a 2.1GHz±500MHz intermediate frequency signal after 2.1GHz band-pass filtering. When the RF signal range is 12GHz~18GHz, the switch turns on the 22GHz band-pass filter and performs low-noise amplification, then mixes with the 25GHz local oscillator signal output by the point frequency source C6. The 19.9GHz local oscillator signal output by frequency source C6 is mixed, low-noise amplified, and digitally attenuated, and then the intermediate frequency signal of 2.1GHz±500MHz is output; the 17GHz~40GHz signal is low-noise amplified, digitally attenuated, mixed with the 23.1GHz~38.4GHz local oscillator signal output by frequency source C5, low-noise amplified again, and then output to the 7.9GHz band-pass filter, and after low-noise amplification, it is mixed with the 10GHz point frequency signal output by point frequency source C6, low-noise amplified, digitally attenuated, and then the intermediate frequency signal of 2.1GHz±500MHz is output.

[0014] The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method described in the present invention is preferably configured such that in step S1, the receiving channels C2 are at least two and can work simultaneously;

[0015] In step S2, at least two receiving channels C2 and transmitting channel C1 work simultaneously, and the output signal of frequency source C5 is output to transmitting channel C1 and receiving channel C2 after passing through 23GHz~40GHz local oscillator distribution network C3; the output signal of point frequency source C6 is output to transmitting channel C1 and receiving channel C2 after passing through 10GHz~25GHz local oscillator distribution network C4.

[0016] The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method described in the present invention is, as a preferred embodiment, in step S1, the transmitting channel C1 and the receiving channel C2 work independently to enter step S3;

[0017] S3, the local oscillator frequency selection switch switches the independent frequency source C8 and the independent point frequency source C9 to the transmitting channel C1. The independent point frequency source C9 outputs only three point frequency signals of 10GHz, 19.9GHz and 25GHz to the transmitting channel C1 by receiving the control instruction of the control circuit C7. The independent frequency source C8 outputs only the local oscillator signal in the range of 23GHz to 40GHz to the transmitting channel C1 by receiving the control instruction of the control circuit C7. The transmitting channel C1 receives the 2.1GHz±500MHz signal and performs two up-conversions, filtering and gain control, and then outputs the signal in the range of 0.8GHz to 18GHz or the signal in the range of 18GHz to 40GHz.

[0018] The frequency source C5 and the point frequency source C6 are both connected to the receiving channel C2. The receiving channel C2 receives the 0.8 GHz to 40 GHz signal and performs two down-conversions, filtering and gain control to output a 2.1 GHz ± 500 MHz intermediate frequency signal.

[0019] The present invention provides a 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system, comprising a transmitting channel C1, a receiving channel C2, a 23GHz-40GHz local oscillator distribution network C3 and a 10GHz-25GHz local oscillator distribution network C4 connected to both the transmitting channel C1 and the receiving channel C2, a frequency source C5 connected to the 23GHz-40GHz local oscillator distribution network C3, a point frequency source C6 connected to the 10GHz-25GHz local oscillator distribution network C4, and a control circuit C7 connected to both the transmitting channel C1, the receiving channel C2, the frequency source C5, and the point frequency source C6;

[0020] The frequency source C5 is a 23GHz~40GHz frequency source, and the point frequency source C6 is a 10GHz / 19.9GHz / 25GHz point frequency source;

[0021] The transmitting channel C1 includes a first-stage up-conversion link C11 and a first-stage local oscillator frequency selection switch C12 connected to each other, a first-stage switch C13 connected to the output end of the first-stage up-conversion link C11, a 22 GHz / 27.1 GHz down-conversion link C14 and a 7.9 GHz up-conversion link C15 connected to the output end of the first-stage switch C13, a second-stage switch C16 and a second-stage local oscillator frequency selection switch C17 connected to the 22 GHz / 27.1 GHz down-conversion link C14 and the 7.9 GHz up-conversion link C15 in sequence, and a third-stage switch C18 connected to the output ends of the 22 GHz / 27.1 GHz down-conversion link C14 and the 7.9 GHz up-conversion link C15;

[0022] The first-stage up-conversion link C11 inputs a 2.1GHz±500MHz intermediate frequency signal, the first-stage local oscillator frequency selection switch C12 is connected to the point frequency source C6, the second-stage local oscillator frequency selection switch C17 is connected to the frequency source C5, the 22GHz / 27.1GHz down-conversion link C14 outputs a 0.8GHz to 18GHz range signal, and the 7.9GHz up-conversion link C15 outputs a 18GHz to 40GHz range signal;

[0023] The receiving channel C2 includes two first-stage receiving channel switches C21, a 0.8 GHz to 18 GHz up-conversion link C22 and a 17 GHz to 40 GHz down-conversion link C23 connected in parallel between the two first-stage receiving channel switches C21, a first-stage receiving channel local oscillator frequency selection switch C24 connected to both the 0.8 GHz to 18 GHz up-conversion link C22 and the 17 GHz to 40 GHz down-conversion link C23, and a second-stage receiving channel down-conversion link C25 connected to both the 0.8 GHz to 18 GHz up-conversion link C22 and the 17 GHz to 40 GHz down-conversion link C23 through the first-stage switch C21;

[0024] The first-stage switch C21 of the receiving channel connected to the receiving end inputs a 0.8GHz~40GHz signal and then segments it into a 0.8GHz~18GHz range signal and outputs it to a 0.8GHz~18GHz up-conversion link C22, and a 18GHz~40GHz range signal and outputs it to a 17GHz~40GHz down-conversion link C23. The first-stage local oscillator frequency selection switch C24 of the receiving channel is connected to the frequency source C5, and the second-stage down-conversion link C25 of the receiving channel is connected to the point frequency source C6 and outputs a 2.1GHz±500MHz intermediate frequency signal.

[0025] The 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system described in the present invention is preferably configured such that the first-stage up-conversion link C11 includes a 2.1GHz bandpass filter C111, a first-stage low-noise amplifier C112, and a first-stage mixer C113 connected in sequence, and the first-stage mixer C113 is connected to a first-stage local oscillator frequency selection switch C12;

[0026] The 22GHz / 27.1GHz down-conversion link C14 includes two fourth-stage switches C141, a 22GHz band-pass filter C142 and a 27.1GHz band-pass filter C143 connected in parallel between the two fourth-stage switches C141, a second-stage low-noise amplifier C144, a second-stage mixer C145, a third-stage low-noise amplifier C146, and a 0.8GHz-18GHz 8-segment switch filter C147 which are sequentially connected to the 22GHz band-pass filter C142 and the 27.1GHz band-pass filter C143 through the fourth-stage switch C141, and the second-stage mixer C145 is connected to the second-stage switch C16;

[0027] The 7.9 GHz up-conversion link C15 includes a fourth-stage low noise amplifier C151, a 7.9 GHz bandpass filter C152, a third-stage mixer C153, a fifth-stage low noise amplifier C154 and a 17 GHz to 40 GHz 5-stage switch filter C155 connected in sequence. The third-stage mixer C153 is connected to the second-stage switch C16.

[0028] The 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system described in the present invention is preferably a 0.8GHz-18GHz up-conversion link C22 comprising a 0.8GHz-18GHz 8-segment switch filter C221, a first-stage low-noise amplifier C222 for a receiving channel, a first-stage digitally controlled attenuator C223 for a receiving channel, a first-stage mixer C224 for a receiving channel, a second-stage switch C225 for a receiving channel, a 22GHz bandpass filter C226 for a receiving channel and a 27.1GHz bandpass filter C227 for a receiving channel connected in parallel to the output end of the second-stage switch C225 for a receiving channel, a third-stage switch C228 for a receiving channel and a second-stage low-noise amplifier C229 for a receiving channel connected in sequence to the output ends of the 22GHz bandpass filter C226 and the 27.1GHz bandpass filter C227 for a receiving channel;

[0029] The 17 GHz to 40 GHz down-conversion link C23 includes a 17 GHz to 40 GHz 5-stage switch filter C231, a receiving channel third-stage low-noise amplifier C232, a receiving channel second-stage digitally controlled attenuator C233, a receiving channel second-stage mixer C234, a receiving channel 7.9 GHz bandpass filter C235, and a receiving channel fourth-stage low-noise amplifier C236, which are connected in sequence;

[0030] The receiving channel second stage down-conversion link C25 comprises a receiving channel third stage mixer C251, a receiving channel fifth stage low noise amplifier C252, a receiving channel third stage digitally controlled attenuator C253 and a receiving channel 2.1 GHz bandpass filter C254 connected in sequence;

[0031] The first-stage mixer C224 and the second-stage mixer C234 of the receiving channel are both connected to the first-stage local oscillator frequency selection switch C24 of the receiving channel, and the third-stage mixer C251 is connected to the point frequency source C6.

[0032] The 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system described in the present invention, as a preferred embodiment, also includes a metal box body, the transmitting channel C1 and the receiving channel C2 are respectively connected to the upper cavity of the metal box body, and the 23GHz-40GHz local oscillator distribution network C3, the 10GHz-25GHz local oscillator distribution network C4, the frequency source C5, the point frequency source C6 and the control circuit C7 are all connected to the lower cavity of the metal box body;

[0033] The receiving channel C2 is an 8-way receiving channel connected in parallel.

[0034] The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system of the present invention, as a preferred embodiment, further includes an independent frequency source C8 and an independent point frequency source C9 separately connected to the transmission channel C1;

[0035] The independent frequency source C8 is a 23GHz~40GHz frequency source, and the independent point frequency source C9 is a 10GHz / 19.9GHz / 25GHz point frequency source.

[0036] The present invention can be widely applied to the technical field of microwave transceiver systems.

[0037] The present invention has the following advantages:

[0038] The present invention adopts a multifunctional and multi-mode fusion design, adopts 8-way receiving channels and 1 transmitting channel with reasonable matching frequency source switching, and can realize three functions: simultaneous operation of receiving and transmitting channels, simultaneous operation of multiple receiving channels, and independent operation of transmitting channels; the receiving and transmitting channels realize up and down frequency conversion functions from 0.8GHz to 40GHz to 2.1GHz±500MHz through reasonable scheme design and frequency range planning, and have the characteristics of wide application range, ultra-wideband, and low spurious; both the transmitting channel and the receiving channel adopt a two-time mixing scheme, and only two frequency sources are used to complete the complete receiving and transmitting functions, and the various filters, switches, and mixers used in the transmitting channel and the receiving channel are all of the same model, which reduces the types of components, simplifies the link, and has the characteristics of low cost and high integration; the transceiver system is designed with a highly integrated multifunctional chip and assembled with a micro-assembly process, and has the characteristics of small size, high reliability, and high consistency between channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a flow chart of a 0.8GHz to 40GHz multi-channel multi-mode frequency conversion method;

[0040] Figure 2 It is a general principle block diagram of a 0.8GHz~40GHz transceiver system of an embodiment of a 0.8GHz~40GHz multi-channel multi-mode variable frequency transceiver system;

[0041] Figure 3 A transmission channel principle block diagram of an embodiment of a 0.8GHz to 40GHz multi-channel multi-mode frequency conversion transceiver system;

[0042] Figure 4 It is a principle block diagram of the first-stage receiving channel of a transmitting channel of an embodiment of a 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system;

[0043] Figure 5 It is a principle block diagram of a transmission channel 22GHz / 27.1GHz down-conversion link of an embodiment of a 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system;

[0044] Figure 6 It is a principle block diagram of a transmission channel 7.9GHz up-conversion link of an embodiment of a 0.8GHz-40GHz multi-channel multi-mode frequency conversion transceiver system;

[0045] Figure 7 A receiving channel principle block diagram of an embodiment of a 0.8GHz to 40GHz multi-channel multi-mode frequency conversion transceiver system;

[0046] Figure 8It is a principle block diagram of a receiving channel 0.8GHz~18GHz up-conversion link of an embodiment of a 0.8GHz~40GHz multi-channel multi-mode frequency conversion transceiver system;

[0047] Fig. 9 It is a principle block diagram of a 17GHz to 40GHz down-conversion link of a receiving channel of an embodiment of a 0.8GHz to 40GHz multi-channel multi-mode frequency conversion transceiver system;

[0048] Fig.10 The present invention is a principle block diagram of the second-stage down-conversion link of a receiving channel of an embodiment of a 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system.

[0049] Reference numerals:

[0050] C1, transmitting channel; C11, first stage receiving channel; C111, 2.1GHz bandpass filter; C112, first stage low noise amplifier; C113, first stage mixer; C12, first stage local oscillator frequency selection switch; C13, first stage switch; C14, 22GHz / 27.1GHz down-conversion link; C141, fourth stage switch; C142, 22GHz bandpass filter; C143, 27.1GHz bandpass filter; C144, second stage low noise amplifier; C145, second stage mixer; C146, third stage low noise amplifier; C147, 0.8GHz~18GHz 8-band switch filter; C15, 7.9GHz up-conversion link; C151, fourth stage low noise amplifier; C152, 7.9GHz bandpass filter; C153, third stage mixer; C154, fifth stage low noise amplifier; C155, 17GHz~40GHz 5-stage switch filter; C16, second-stage switch; C17, second-stage local oscillator frequency selection switch; C18, third-stage switch; C2, receiving channel; C21, first-stage switch of receiving channel; C22, 0.8GHz~18GHz up-conversion link; C221, 0.8GHz~18GHz 8-stage switch filter; C222, first-stage low-noise amplifier of receiving channel; C223, first-stage digitally controlled attenuator of receiving channel; C224, first-stage mixer of receiving channel; C225, second-stage switch of receiving channel; C226, 22GHz bandpass filter of receiving channel; C227, 27.1GHz bandpass filter of receiving channel; C228, third-stage switch of receiving channel; C229, second-stage low-noise amplifier of receiving channel; C23, 17GHz~40GHz down-conversion link; C231, 17GHz~40GHz 5-stage switch filter; C232, receiving channel third-stage low-noise amplifier; C233, receiving channel second-stage digitally controlled attenuator; C234, receiving channel second-stage mixer; C235, receiving channel 7.9GHz band-pass filter; C236, receiving channel fourth-stage low-noise amplifier; C24, receiving channel first-stage local oscillator frequency selection switch; C25, receiving channel second-stage down-conversion link; C251, receiving channel third-stage mixer; C252, receiving channel fifth-stage low-noise amplifier; C253, receiving channel third-stage digitally controlled attenuator; C254, receiving channel 2.1GHz band-pass filter; C3, 23GHz~40GHz local oscillator distribution network; C4, 10GHz~25GHz local oscillator distribution network; C5, frequency source; C6, point frequency source; C7, control circuit; C8, independent frequency source; C9, independent point frequency source. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Example 1

[0053] like Figures 1 to 10 As shown, a 0.8GHz to 40GHz multi-channel multi-mode frequency conversion method and transceiver system;

[0054] like Figure 2 As shown, the 0.8GHz~40GHz multi-channel multi-mode transceiver system of the present invention can realize the functions of up and down conversion, filtering, gain control, etc. from 0.8GHz~40GHz to 2.1GHz±500MHz, including one 0.8GHz~40GHz transmission channel C1, eight 0.8GHz~40GHz receiving channels C2, two 23GHz~40GHz frequency sources C5 and C8, two 10GHz / 19.9GHz / 25GHz point frequency sources C6 and C9, 23GHz~40GHz local oscillator distribution network C3, 10GHz~25GHz local oscillator distribution network C4 and control circuit C7.

[0055] The local oscillator signal of the transmitting channel C1 can be provided by the frequency source C9 and the point frequency source C8 separately, or it can be provided by another group of frequency sources C5 and the point frequency source C6 through the local oscillator distribution networks C3 and C4, so as to realize the common local oscillator signal of the transmitting channel C1 and the receiving channel C2. The two modes can be switched.

[0056] The local oscillator signals of the 8-way receiving channel C2 are provided by the local oscillator distribution networks C3 and C4. The 23GHz to 40GHz frequency sources C5 and C8 can output signals of any frequency within the range of 23GHz to 40GHz by receiving control instructions from the control circuit.

[0057] 10GHz / 19.9GHz / 25GHz frequency sources C6 and C9 can output three frequency signals of 10GHz, 19.9GHz and 25GHz by receiving control instructions from the control circuit. 23GHz~40GHz local oscillator distribution network C3 and 10GHz~25GHz local oscillator distribution network C4 can respectively amplify and distribute 23GHz~40GHz, 10GHz, 19.9GHz and 25GHz local oscillator signals to 8 receiving channels C2 and 1 transmitting channel C1.

[0058] The control circuit C7 can issue control instructions to control the frequency of the local oscillator signal, select the frequency band of the transmitting and receiving channels, control the gain, switch the working mode, etc.

[0059] Furthermore, an ultra-wideband multi-channel multi-mode transceiver system also includes a metal box body, the one transmitting channel C1 and the eight receiving channels C2 are installed in the upper cavity of the metal box body, and the frequency source C5, the point frequency source C6, the local oscillator distribution network C3, C4, and the control circuit C7 are installed in the lower cavity of the metal box body.

[0060] like Figure 3 As shown, the 0.8GHz~40GHz transmission channel C1 includes a first-stage up-conversion link C11, a first-stage local oscillator frequency selection switch C12, a first-stage switch C13, a 22GHz / 27.1GHz down-conversion link C14, a 7.9GHz up-conversion link C15, a second-stage switch C16, a second-stage local oscillator frequency selection switch C17, and a third-stage switch C18.

[0061] Furthermore, if Figure 4 As shown, the first-stage up-conversion link C11 includes a 2.1 GHz bandpass filter C111, a first-stage low noise amplifier C112, and a first-stage mixer C113.

[0062] Furthermore, if Figure 5 As shown, the 22 GHz / 27.1 GHz down-conversion link C14 includes two fourth-stage switches C141, a 22 GHz band-pass filter C142, a 27.1 GHz band-pass filter C143, a second-stage low-noise amplifier C144, a second-stage mixer C145, a third-stage low-noise amplifier C146, and a 0.8 GHz to 18 GHz 8-stage switch filter C147.

[0063] Furthermore, if Figure 6 As shown, the 7.9 GHz up-conversion link C15 includes a fourth-stage low noise amplifier C151, a 7.9 GHz bandpass filter C152, a third-stage mixer C153, a fifth-stage low noise amplifier C154, and a 17 GHz to 40 GHz 5-stage switch filter C155.

[0064] When the first-stage switch C13 and the second-stage switch C16 select the 22GHz / 27.1GHz down-conversion link C14, the second-stage local oscillator frequency selection switch C17 switches the local oscillator signal to this path, and the 2.1GHz±500MHz intermediate frequency signal passes through the 2.1GHz bandpass filter C111, the first-stage low noise amplifier C112, and the first-stage mixer C113. When the point frequency source C6 outputs a 19.9GHz local oscillator signal, the third-stage and fourth-stage switches C141 select the receiving channel 22GHz bandpass filter C226. When the point frequency source C6 outputs 25GHz, the third-stage switch C141 selects the 27.1GHz bandpass filter C143, and then passes through the second-stage low noise amplifier C144, the second-stage mixer C145, the third-stage low noise amplifier C146, and the 0.8GHz~18GHz 8-segment switch filter C147 to output a 0.8GHz~18GHz range signal.

[0065] When the first-stage switch C13 and the second-stage switch C16 select the 7.9GHz up-conversion link C15, the local oscillator frequency selection switch switches the local oscillator signal to this path, and the 2.1GHz±500MHz intermediate frequency signal passes through the 2.1GHz bandpass filter C111, the first-stage low-noise amplifier C112, the first-stage mixer C113, the fourth-stage low-noise amplifier C151, the 7.9GHz bandpass filter C152, the third-stage mixer C153, the fifth-stage low-noise amplifier C154, and the 17GHz~40GHz 5-stage switch filter C155 to output a signal in the range of 18GHz~40GHz.

[0066] like Figure 7 As shown, the 0.8 GHz to 40 GHz receiving channel C2 includes two receiving channel first-stage switches C21, a 0.8 GHz to 18 GHz up-conversion link C22, a 17 GHz to 40 GHz down-conversion link C23, a receiving channel local oscillator frequency selection switch C24, and a receiving channel second-stage down-conversion link C25.

[0067] Furthermore, if Figure 8 As shown, the 0.8 GHz to 18 GHz up-conversion link C22 sequentially includes a 0.8 GHz to 18 GHz 8-stage switch filter C221, a first-stage low-noise amplifier C222 for a receiving channel, a first-stage digitally controlled attenuator C223 for a receiving channel, a first-stage mixer C224 for a receiving channel, two second-stage switches C225 for receiving channels, a 22 GHz bandpass filter C226 for a receiving channel, a 27.1 GHz bandpass filter C227 for a receiving channel, a third-stage switch C228 for a receiving channel, and a second-stage low-noise amplifier C229 for a receiving channel.

[0068] Furthermore, if Fig. 9As shown, the 17 GHz to 40 GHz down-conversion link C23 sequentially includes a 17 GHz to 40 GHz 5-stage switch filter C231, a receiving channel third-stage low-noise amplifier C232, a receiving channel second-stage digitally controlled attenuator C233, a receiving channel second-stage mixer C234, a receiving channel 7.9 GHz bandpass filter C235, and a receiving channel fourth-stage low-noise amplifier C236.

[0069] Furthermore, if Fig.10 As shown, the receiving channel second-stage down-conversion link C25 sequentially includes a receiving channel third-stage mixer C251, a receiving channel fifth-stage low-noise amplifier C252, a receiving channel third-stage digitally controlled attenuator C253, and a receiving channel 2.1 GHz bandpass filter C254.

[0070] When the first-stage switch C21 of the receiving channel selects the 0.8GHz~18GHz up-conversion link C22, the local oscillator frequency selection switch switches the signal of the 23GHz~40GHz frequency source C5 through the local oscillator distribution network C3 to the link to provide the local oscillator signal, and the RF signal passes through the 0.8GHz~18GHz frequency conversion link C22 in turn. 8-stage switch filter C221, first-stage low-noise amplifier C222 of receiving channel, first-stage digitally controlled attenuator C223 of receiving channel, first-stage mixer C224 of receiving channel. When the RF signal range is 0.8GHz~12GHz, the second-stage switch C225 of receiving channel selects 27.1GHz band-pass filter C227 of receiving channel. When the RF signal range is 12GHz~18GHz, the second-stage switch C225 of receiving channel selects 22GHz band-pass filter C226 of receiving channel. Then, 2.1GHz±500MHz intermediate frequency signal is output through second-stage low-noise amplifier C228 of receiving channel, third-stage mixer C251 of receiving channel, fifth-stage low-noise amplifier C252 of receiving channel, third-stage digitally controlled attenuator C253 of receiving channel, and 2.1GHz band-pass filter C254 of receiving channel.

[0071] When the first-stage switch C21 of the receiving channel selects the 17GHz~40GHz down-conversion link C23, the receiving channel local oscillator frequency selection switch C24 switches the signal of the 23GHz~40GHz frequency source C5 through the local oscillator distribution network C3 to the link to provide a local oscillator signal. The RF signal passes through the 17GHz~40GHz 5-stage switch filter C231, the third-stage low-noise amplifier C232 of the receiving channel, the second-stage digitally controlled attenuator C233 of the receiving channel, the second-stage mixer C224 of the receiving channel, the 7.9GHz band-pass filter C235 of the receiving channel, the fourth-stage low-noise amplifier C236 of the receiving channel, the third-stage mixer C251 of the receiving channel, the fifth-stage low-noise amplifier C252 of the receiving channel, the third-stage digitally controlled attenuator C253 of the receiving channel, and the 2.1GHz band-pass filter C254 of the receiving channel to output a 2.1GHz±500MHz intermediate frequency signal.

[0072] Furthermore, when the first-level and second-level local oscillator frequency selection switches are switched to the local oscillator distribution networks C3 and C4, the transmitting channel C1 and the receiving channel C2 share the local oscillator, and the entire transceiver system can achieve simultaneous transceiver functions. When the first-level and second-level local oscillator frequency selection switches are switched to independent independent point frequency sources C9 and independent frequency sources C8, the transmitting channel can achieve independent transmission functions, and the 8 receiving channels can achieve independent reception functions.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method, characterized in that: The following steps are involved: S1. After the 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system is assembled, the transmitting channel C1 and the receiving channel C2 work simultaneously and enter step S2; S2 and the local oscillator frequency selection switch connect the frequency source C5 and the point frequency source C6 to the transmitting channel C1 and the receiving channel C2. The transmitting channel C1 and the receiving channel C2 work simultaneously. The transmitting channel C1 receives the 2.1GHz±500MHz signal and performs two up-conversions, filtering, and gain control, and then outputs a 0.8GHz~18GHz range signal or a 18GHz~40GHz range signal. The receiving channel C2 receives the 0.8GHz~40GHz signal, performs two down-conversions, filtering, and gain control, and then outputs a 2.1GHz±500MHz intermediate frequency signal.

2. A 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method according to claim 1, characterized in that: In step S2, the frequency source C6 outputs three frequency signals of 10 GHz, 19.9 GHz and 25 GHz by receiving the control instruction of the control circuit C7 and outputs them to the transmitting channel C1 and the receiving channel C2 through the 10 GHz to 25 GHz local oscillator distribution network C4; the frequency source C5 can output a local oscillator signal of any frequency in the range of 23 GHz to 40 GHz by receiving the control instruction of the control circuit C7 and output it to the transmitting channel C1 and the receiving channel C2 through the 23 GHz to 40 GHz local oscillator distribution network; The transmitting channel C1 is working, and the intermediate frequency signal of 2.1GHz±500MHz is mixed after being filtered by 2.1GHz bandpass; when the switch turns on the 22GHz bandpass filter, the point frequency source C6 outputs a 19.9GHz point frequency signal; when the switch turns on the 27.1GHz bandpass filter, the point frequency source C6 outputs a 25GHz point frequency signal; the signals output by the 22GHz bandpass filter and the 27.1GHz bandpass filter are mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 to output a signal in the range of 0.8GHz~18GHz; when the switch turns on the 7.9GHz bandpass filter, the point frequency source C6 outputs a 10GHz point frequency signal, and the filtered signal is mixed with the 23.1GHz~38.4GHz local oscillator signal output by the frequency source C5 to output a signal in the range of 18GHz~40GHz; The receiving channel C2 works to receive 0.8GHz~40GHz signals. When the switch selects the 0.8GHz~18GHz up-conversion link C22, the received signal passes through the switch filter and is mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 to output a first mixed signal. When the switch turns on the 22GHz bandpass filter, the first mixed signal is mixed with the 19.9GHz local oscillator signal output by the point frequency source C6 and then passes through the 2.1GHz bandpass filter to output a 2.1GHz±500MHz intermediate frequency signal. When the switch turns on the 27.1GHz bandpass filter, the first mixed signal is mixed with the 19.9GHz local oscillator signal output by the point frequency source C6 and then passes through the 2.1GHz bandpass filter to output a 2.1GHz±500MHz intermediate frequency signal. When the 17GHz~40GHz down-conversion link C23 is selected, the received signal is mixed with the 23.1GHz~38.4GHz local oscillator signal output by the frequency source C5 after passing through the switching filter to output a second mixed signal, and the second mixed signal is mixed with the 10GHz point frequency signal output by the point frequency source C6 after passing through the 2.1GHz band-pass filtering to output a 2.1GHz±500MHz intermediate frequency signal.

3. A 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method according to claim 2, characterized in that: In step S2, when the transmitting channel C1 is working, the intermediate frequency signal of 2.1GHz±500MHz is mixed after being subjected to 2.1GHz bandpass filtering and low-noise amplification; the signals output by the 22GHz bandpass filter and the 27.1GHz bandpass filter are mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 after low-noise amplification and 0.8GHz~18GHz 8-segment switch filtering to output a signal in the range of 0.8GHz~18GHz; The signal after 7.9GHz bandpass filtering is low-noise amplified, mixed with the 23.1GHz-38.4GHz local oscillator signal output by the frequency source C5, low-noise amplified again, and filtered by 17GHz-40GHz 5-segment switch to output a signal in the range of 18GHz-40GHz; In step S2, when the receiving channel C2 is working, the 0.8 GHz to 40 GHz radio frequency signal is filtered through an 8-segment switch of 0.8 GHz to 18 GHz to output a 0.8 GHz to 18 GHz signal, and is filtered through a 5-segment switch of 17 GHz to 40 GHz to output a 17 GHz to 40 GHz signal; The 0.8GHz~18GHz signal is mixed with the 28GHz~39.5GHz local oscillator signal output by the frequency source C5 after low-noise amplification and digitally controlled attenuation. When the RF signal range is 0.8GHz~12GHz, the switch turns on the 27.1GHz bandpass filter and performs low-noise amplification, then mixes with the 25GHz local oscillator signal output by the point frequency source C6, performs low-noise amplification, and digitally controlled attenuates, and then outputs a 2.1GHz±500MHz intermediate frequency signal. When the RF signal range is 12GHz~18GHz, the switch turns on the 22GHz bandpass filter and performs low-noise amplification, then mixes with the 19.9GHz local oscillator signal output by the point frequency source C6, performs low-noise amplification, and digitally controlled attenuates, and then outputs a 2.1GHz±500MHz intermediate frequency signal after performing 2.1GHz bandpass filtering. The 17GHz~40GHz signal is low-noise amplified and digitally attenuated, mixed with the 23.1GHz~38.4GHz local oscillator signal output by the frequency source C5, and then low-noise amplified again and output to the 7.9GHz band-pass filter. After low-noise amplification, it is mixed with the 10GHz point frequency signal output by the point frequency source C6, and then low-noise amplified and digitally attenuated, and then output through a 2.1GHz band-pass filter to output a 2.1GHz±500MHz intermediate frequency signal.

4. The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method according to claim 1, characterized in that: In step S1, the receiving channels C2 are at least two and can work simultaneously; In step S2, at least two receiving channels C2 and the transmitting channel C1 work simultaneously, and the output signal of the frequency source C5 is output to the transmitting channel C1 and the receiving channel C2 after passing through the 23 GHz to 40 GHz local oscillator distribution network C3; The output signal of the point frequency source C6 is output to the transmitting channel C1 and the receiving channel C2 through the 10GHz-25GHz local oscillator distribution network C4.

5. The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion method according to claim 1, characterized in that: In step S1, the transmitting channel C1 and the receiving channel C2 work independently and enter step S3; S3, the local oscillator frequency selection switch switches the independent frequency source C8 and the independent point frequency source C9 to the transmitting channel C1, and the independent point frequency source C9 outputs only three point frequency signals of 10GHz, 19.9GHz and 25GHz to the transmitting channel C1 by receiving the control instruction of the control circuit C7, and the independent frequency source C8 outputs only the local oscillator signal in the range of 23GHz to 40GHz to the transmitting channel C1 by receiving the control instruction of the control circuit C7; the transmitting channel C1 receives the 2.1GHz±500MHz signal and performs two up-conversions, filtering and gain control, and then outputs the signal in the range of 0.8GHz to 18GHz or the signal in the range of 18GHz to 40GHz; The frequency source C5 and the point frequency source C6 are both connected to the receiving channel C2. The receiving channel C2 receives a 0.8 GHz to 40 GHz signal, performs two down-conversions, filtering and gain control, and then outputs a 2.1 GHz ± 500 MHz intermediate frequency signal.

6. A 0.8GHz to 40GHz multi-channel multi-mode frequency conversion transceiver system, characterized in that: It includes a transmitting channel C1, a receiving channel C2, a 23GHz-40GHz local oscillator distribution network C3 and a 10GHz-25GHz local oscillator distribution network C4 connected to the transmitting channel C1 and the receiving channel C2, a frequency source C5 connected to the 23GHz-40GHz local oscillator distribution network C3, a point frequency source C6 connected to the 10GHz-25GHz local oscillator distribution network C4, and a control circuit C7 connected to the transmitting channel C1, the receiving channel C2, the frequency source C5, and the point frequency source C6; The frequency source C5 is a 23 GHz to 40 GHz frequency source, and the point frequency source C6 is a 10 GHz / 19.9 GHz / 25 GHz point frequency source; The transmitting channel C1 includes a first-stage up-conversion link C11 and a first-stage local oscillator frequency selection switch C12 connected to each other, a first-stage switch C13 connected to the output end of the first-stage up-conversion link C11, a 22GHz / 27.1GHz down-conversion link C14 and a 7.9GHz up-conversion link C15 connected to the output ends of the first-stage switch C13, a second-stage switch C16 and a second-stage local oscillator frequency selection switch C17 connected in sequence to the 22GHz / 27.1GHz down-conversion link C14 and the 7.9GHz up-conversion link C15, and a third-stage switch C18 connected to the output ends of the 22GHz / 27.1GHz down-conversion link C14 and the 7.9GHz up-conversion link C15; The first-stage up-conversion link C11 inputs a 2.1GHz±500MHz intermediate frequency signal, the first-stage local oscillator frequency selection switch C12 is connected to the point frequency source C6, the second-stage local oscillator frequency selection switch C17 is connected to the frequency source C5, the 22GHz / 27.1GHz down-conversion link C14 outputs a 0.8GHz to 18GHz range signal, and the 7.9GHz up-conversion link C15 outputs a 18GHz to 40GHz range signal; The receiving channel C2 includes two first-stage receiving channel switches C21, a 0.8 GHz to 18 GHz up-conversion link C22 and a 17 GHz to 40 GHz down-conversion link C23 connected in parallel between the two first-stage receiving channel switches C21, a first-stage receiving channel local oscillator frequency selection switch C24 connected to both the 0.8 GHz to 18 GHz up-conversion link C22 and the 17 GHz to 40 GHz down-conversion link C23, and a second-stage receiving channel down-conversion link C25 connected to both the 0.8 GHz to 18 GHz up-conversion link C22 and the 17 GHz to 40 GHz down-conversion link C23 through the first-stage switch C21; The first-stage switch C21 of the receiving channel connected to the receiving end inputs a 0.8GHz~40GHz signal and then segments it into a 0.8GHz~18GHz range signal and outputs it to the 0.8GHz~18GHz up-conversion link C22, and an 18GHz~40GHz range signal and outputs it to the 17GHz~40GHz down-conversion link C23. The first-stage local oscillator frequency selection switch C24 of the receiving channel is connected to the frequency source C5, and the second-stage down-conversion link C25 of the receiving channel is connected to the point frequency source C6 and outputs a 2.1GHz±500MHz intermediate frequency signal.

7. A 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system according to claim 6, characterized in that: The first-stage up-conversion link C11 comprises a 2.1 GHz bandpass filter C111, a first-stage low noise amplifier C112, and a first-stage mixer C113 connected in sequence, wherein the first-stage mixer C113 is connected to the first-stage local oscillator frequency selection switch C12; The 22GHz / 27.1GHz down-conversion link C14 includes two fourth-stage switches C141, a 22GHz band-pass filter C142 and a 27.1GHz band-pass filter C143 connected in parallel between the two fourth-stage switches C141, a second-stage low-noise amplifier C144, a second-stage mixer C145, a third-stage low-noise amplifier C146, and a 0.8GHz-18GHz 8-segment switch filter C147 connected in sequence to the 22GHz band-pass filter C142 and the 27.1GHz band-pass filter C143 through the fourth-stage switch C141, and the second-stage mixer C145 is connected to the second-stage switch C16; The 7.9 GHz up-conversion link C15 includes a fourth-stage low noise amplifier C151, a 7.9 GHz bandpass filter C152, a third-stage mixer C153, a fifth-stage low noise amplifier C154 and a 17 GHz-40 GHz 5-stage switch filter C155 connected in sequence, and the third-stage mixer C153 is connected to the second-stage switch C16.

8. The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system according to claim 6, characterized in that: The 0.8GHz-18GHz up-conversion link C22 includes a 0.8GHz-18GHz 8-segment switch filter C221, a first-stage low-noise amplifier C222 for a receiving channel, a first-stage digitally controlled attenuator C223 for a receiving channel, a first-stage mixer C224 for a receiving channel, a second-stage switch C225 for a receiving channel, a 22GHz band-pass filter C226 for a receiving channel and a 27.1GHz band-pass filter C227 for a receiving channel connected in parallel to the output end of the second-stage switch C225 for the receiving channel, a third-stage switch C228 for a receiving channel and a second-stage low-noise amplifier C229 for a receiving channel connected in sequence to the output end of the 22GHz band-pass filter C226 for the receiving channel and the output end of the 27.1GHz band-pass filter C227 for the receiving channel; The 17GHz-40GHz down-conversion link C23 includes a 17GHz-40GHz 5-segment switch filter C231, a receiving channel third-stage low-noise amplifier C232, a receiving channel second-stage digitally controlled attenuator C233, a receiving channel second-stage mixer C234, a receiving channel 7.9GHz bandpass filter C235, and a receiving channel fourth-stage low-noise amplifier C236 connected in sequence; The receiving channel second-stage down-conversion link C25 comprises a receiving channel third-stage mixer C251, a receiving channel fifth-stage low-noise amplifier C252, a receiving channel third-stage digitally controlled attenuator C253 and a receiving channel 2.1 GHz bandpass filter C254 connected in sequence; The first-stage mixer C224 of the receiving channel and the second-stage mixer C234 of the receiving channel are both connected to the first-stage local oscillator frequency selection switch C24 of the receiving channel, and the third-stage mixer C251 is connected to the point frequency source C6.

9. The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system according to claim 6, characterized in that: It also includes a metal box body, wherein the transmitting channel C1 and the receiving channel C2 are respectively connected to the upper cavity of the metal box body, and the 23GHz-40GHz local oscillator distribution network C3, the 10GHz-25GHz local oscillator distribution network C4, the frequency source C5, the point frequency source C6 and the control circuit C7 are all connected to the lower cavity of the metal box body; The receiving channel C2 is 8 receiving channels connected in parallel.

10. The 0.8 GHz to 40 GHz multi-channel multi-mode frequency conversion transceiver system according to claim 6, characterized in that: It also includes an independent frequency source C8 and the independent point frequency source C9 which are individually connected to the transmitting channel C1; The independent frequency source C8 is a 23 GHz to 40 GHz frequency source, and the independent point frequency source C9 is a 10 GHz / 19.9 GHz / 25 GHz point frequency source.

Images