1542 results about "Insertion loss" patented technology

The invention discloses a PCB (printed circuit board) back drilling stub length detection device and method, and belongs to the technical field of PCB detection, the PCB back drilling stub length detection device comprises a broadband light source, the output end of the broadband light source is connected with an optical fiber coupler, and one end, deviating from the broadband light source, of the optical fiber coupler is respectively connected with a first optical fiber collimator and a second optical fiber collimator; the first optical fiber collimator is provided with a lens and a reflector on an optical transmission path; the second optical fiber collimator is provided with a galvanometer on a light transmission path, and a scanning lens is arranged in the light emitting direction of the galvanometer; and the optical fiber coupler is also connected with a spectrograph. On the basis of the low-coherence light interference principle, the PCB back drilling stub length detection device is designed, the output power and the output bandwidth of a broadband light source are correspondingly adjusted, the insertion loss of an optical fiber coupler is controlled, the collection rate of a spectrograph is adjusted, finally, the axial resolution reaches 5 micrometers, the transverse resolution reaches 10 micrometers, and the requirements that the diameter is smaller than 0.1 mm, and the detection precision is larger than 0.1 mm can be met. And detecting the stub length of the deep micropore with the depth of less than 10mm.

The embodiment of the invention provides a gap waveguide cavity filtering power divider, and belongs to the technical field of filtering power dividers, the gap waveguide cavity filtering power divider comprises a device body, a first slot, at least two second slots and a cover plate, the device body is provided with an input waveguide interface and at least two output waveguide interfaces; the first slot is arranged on the device body, and the first slot is connected with the input waveguide interface; the at least two second open slots are formed in the device body, the second open slots are connected with the output waveguide interfaces in a one-to-one correspondence mode, the first open slots are connected with the second open slots respectively, and the opening directions of the first open slots and the second open slots are located on the same side of the device body; the cover plate is arranged on the device body, and is configured to define a first waveguide resonant cavity with the first slot and define a second waveguide resonant cavity with the second slot. The gap waveguide cavity filtering power divider provided by the embodiment of the invention is simple in structure, can reduce the insertion loss, and has better stop-band performance.

The invention provides a broadband low-noise amplifier based on a three-coil coupling transformer. The broadband low-noise amplifier comprises an input matching network, a common-source differential output driving stage amplifier, an inter-stage matching network, a common-source differential output power stage amplifier and an output matching network which are connected in sequence, broadband matching is realized by using the input matching network and the inter-stage matching network, and the effective transconductance of the transistor is improved; through the cross-coupled capacitors, the LNA gain and stability on a broadband are improved, better isolation is realized, and input and output are decoupled; due to the design of the grounding capacitor, the linearity of the LNA is improved; through the combination of the three-coil coupling transformer and the differential topology, output signals are superposed in the same direction at the output end, and noise is cancelled in the reverse direction at the output end, so that the thermal noise is greatly inhibited, the isolation is improved through the output matching network, the insertion loss is reduced, and the output matching performance is optimized.

The invention discloses a dual-compensation active common-mode EMI filter based on impedance mismatch and a design method thereof, and belongs to the technical field of filter design, the dual-compensation active common-mode EMI filter is connected between an interfered end and an interference source end, the dual-compensation active common-mode EMI filter comprises a voltage sampling circuit, a signal amplification circuit and a compensation circuit, the compensation circuit comprises a voltage injection module and a current injection module, the first end of the voltage injection module is connected with the first end of the voltage sampling circuit, the second end is connected with the second end of the signal amplification circuit, and the third end is connected with the first end of the interference source end; the first end of the current injection module is connected with the second end of the signal amplification circuit, the second end is connected with the third end of the voltage injection module, and the third end is connected with the second end of the interference source end. According to the invention, the insertion loss of the filter can be significantly improved, the filter has an effective bandwidth enough to cover and conduct electromagnetic interference, has better attenuation on full-band noise signals, and has the advantages of small size and high insertion loss.

The invention provides a TF-SAW resonator, a preparation method thereof and a filter, and relates to the technical field of semiconductors. The interdigital electrode comprises piston structures, sub-bus bars and metal bumps, the piston structures are positioned at two ends of the acoustic part, it can be understood that the piston structures are arranged at the tail end areas of the acoustic part on the electrode finger strips, and larger sound velocity difference is realized by changing the sound velocity of the tail end areas; therefore, the transverse mode is reflected in different directions to avoid energy dissipation caused by resonance; on a propagation path of a transverse mode, the sub bus bars and the metal bumps are sequentially arranged, clutter interference is eliminated by causing sound velocity difference, so that clutter mode interference is inhibited to the greatest extent, the Q value is improved, the insertion loss flatness in a passband is improved, and the performance of the TF-SAW resonator is further improved.

The invention discloses a circuit board printing control method and system based on signal transmission loss. And obtaining a target differential transmission line parameter and a circuit board lamination parameter. And establishing an electromagnetic simulation model, and simulating insertion loss, return loss and impedance discontinuous point distribution. The line width, the line spacing and the interlayer hollowed-out area of the differential transmission line are dynamically adjusted through the reinforcement learning model, the proportion of the line width to the shielding layer spacing is limited by a preset critical value, and the line spacing is configured based on the multiple relation of the shielding layer spacing. And a sectional optimization strategy is adopted for the corners of the transmission line. The ratio of the aperture to the diameter of the anti-pad is optimized, and impedance mutation is reduced. According to the method, the key parameters of the target differential transmission line and the circuit board lamination parameters are acquired, and the electromagnetic simulation model is combined with the multi-physical field coupling algorithm, so that the insertion loss, the return loss and the impedance discontinuous point distribution can be accurately simulated. The method improves the adjustment efficiency, guarantees the accuracy of an adjustment result, and effectively reduces the signal transmission loss.

The embodiment of the invention provides a feed network, an antenna device, an active antenna unit and communication equipment, and the feed network controls the phase state of a phase shifter through light, does not need to use a control line, enables the feed network comprising the phase shifter to adopt an inverted microstrip structure, and reduces the insertion loss between a radio frequency channel and an antenna.

The invention discloses a multi-mode circularly polarized OAM (orbital angular momentum) filtering antenna based on an artificial surface plasmon. According to the antenna, the SSPP leaky-wave antenna and the HMSIPW filter are integrated, so that efficient emission of multi-mode OAM beams is realized, and the antenna has low axial ratio, high gain and good directional diagram matching performance; the SSPP leaky-wave antenna is composed of an Archimedes spiral line type SSPP waveguide and annularly distributed patches, wherein the SSPP waveguide realizes accurate regulation and control of dispersion characteristics through the combination of periodic sawtooth comb lines and uniform spiral lines; the HMSIPW filter is composed of a dielectric substrate layer, a metalized through hole and a gradient rectangular structure, impedance matching of a micro-strip and double lines is achieved, insertion loss is reduced, and radiation performance is improved. Compared with a traditional design, a filtering function is integrated, higher harmonic radiation and low-purity high-mode OAM are inhibited through the overall design, and selectivity and radiation energy uniformity are improved.

The invention provides a TF-SAW resonator, a preparation method thereof and a filter, and relates to the technical field of semiconductors. The interdigital electrode comprises piston structures, sub-bus bars, metal bumps and recesses, the piston structures are positioned at two ends of the acoustic part, it can be understood that the piston structures are arranged at the tail end areas of the acoustic part on the electrode finger bars, and larger sound velocity difference is realized by changing the sound velocity of the tail end areas; therefore, the transverse mode is reflected in different directions to avoid energy dissipation caused by resonance; according to the TF-SAW resonator, the sub bus bars, the metal bumps and the recesses are arranged on a propagation path of a transverse mode, clutter interference is eliminated by causing sound velocity difference, so that clutter mode interference is inhibited to the greatest extent, the Q value is improved, the insertion loss flatness in a passband is improved, the performance of standing waves in the passband is improved, the insertion loss is improved and the like, and the performance of the TF-SAW resonator is further improved.

The invention discloses a broadband single-pole double-throw switch MMIC, and belongs to the field of radio frequency / microwave. The switch adopts a symmetrical dual-channel structure, each channel comprises an input end series switch circuit, an output end series switch circuit and two parallel switch branches, channel switching is realized through two complementary control voltages, and impedance matching is carried out between the circuits by adopting microstrip lines. According to the technical scheme, switching tubes, resistors and inductors are utilized to form a circuit network, and a signal transmission path is optimized through the resonance effect of the inductors and switching tube cut-off capacitors in parallel branches in combination with a resistor parallel structure and a microstrip line matching technology. According to the invention, the performance of low insertion loss and high isolation in a broadband is achieved, the voltage standing wave ratio of an off-state output port is reduced, the port matching capability is improved, and an efficient and stable solution is provided for signal routing in a radio frequency system.

The invention relates to the technical field of communication, in particular to a half-mode gap waveguide cavity filtering power divider. The half-mode gap waveguide cavity filtering power divider comprises a first substrate, a second substrate and a filtering structure, the second substrate is arranged opposite to the first substrate, an input groove and at least two output grooves are formed in the second substrate, groove openings of the input groove and the output grooves face the first substrate, the input groove is used for inputting electromagnetic signals, the output grooves are communicated with the input groove, and the filtering structure is arranged between the first substrate and the second substrate. Therefore, the electromagnetic signals are correspondingly distributed to the output grooves. The filtering structure comprises a first filtering assembly and a second filtering assembly, and the first filtering assembly is arranged in the output groove so as to filter out the electromagnetic signals with the frequency higher than the first preset frequency; and the second filtering assembly is arranged between the first substrate and the second substrate so as to filter out the electromagnetic signals with the frequency lower than the second preset frequency. According to the half-mode gap waveguide cavity filtering power divider provided by the invention, the insertion loss is reduced, and the signal strength is improved.

Acoustic resonators with piston mode patches are disclosed. In one aspect, an interdigitated acoustic resonator (300) having plural fingers (308(1)-308(N)) or digits includes a modified piston mode rail. In particular, the piston mode rail is replaced with individual piston mode patches (320(1)-320(N); 322(1)-322(N)) that may be uniform or varied in size. Selection of patch size allows spurious modes to be suppressed to have a smooth filter passband with low overall insertion loss and minimal ripple. Further, the patches may be made through a monolithic process, which reduces overall production cost, complexity and cycle time.

A vehicular compartment sound proofing structure includes a partition member 12 that partitions the vehicular compartment, a sound absorbing layer 14 having spaces therein, an air impermeable layer 30 made of air impermeable material, and a compressed fiber layer 32A mainly formed of a compressed mass of fibers. Connection strength between the compressed fiber layer 32A and the air impermeable layer 30 is lower than connection strength between the air impermeable layer 30 and the sound absorbing layer 14. Accordingly, antiresonance arises between resonance due to the resonance transmission and resonance by stretching of the sound absorbing layer 14 (refer to 10A). This improves insertion loss in the middle frequency band and soundproofing performance with respect to sound in the middle frequency band is improved.

The invention discloses a temperature compensation equalizer with adjustable equalization slope linearity, and relates to the technical field of microwave integrated circuits. The equalizer comprises a temperature compensation driving module and a temperature compensation equalization module. The temperature compensation driving module generates a control voltage changing along with the temperature by using the negative temperature characteristic of the diode. The temperature compensation equalization module comprises an equalization circuit formed by resonators and a pair of stacked switch tubes, and realizes a temperature compensation function by controlling voltage to adjust insertion loss; meanwhile, by changing the capacitance value of the equalization slope linearity adjusting capacitor C3 which is connected with the series resonator in parallel, the linearity of the equalization slope can be flexibly adjusted on the premise that the equalization quantity is kept unchanged. According to the invention, the temperature compensation and equalization functions are integrated, the structure is compact, the performance is stable, the slope linearity can be flexibly adjusted, and the device is suitable for gain frequency and temperature compensation in a broadband radio frequency link.

The invention discloses a parameter measuring device and method of an optical switch and optical communication equipment, and relates to the technical field of optical switch measurement, and the parameter measuring device of the optical switch comprises an optical path module, a signal conditioning circuit, a driving module, a signal acquisition module and an upper computer. The optical path module converts the optical signal into a current signal; the signal conditioning circuit conditions the signal into a voltage signal and amplifies the voltage signal; the driving module provides a driving signal and a synchronous triggering signal; the signal acquisition module acquires a voltage signal based on the trigger signal; the upper computer calculates performance parameters of the optical switch according to the voltage signals acquired for multiple times, wherein the performance parameters at least comprise two items of insertion loss, extinction ratio, switching time and the like; according to the technical scheme, one-key measurement of performance parameters such as insertion loss, extinction ratio, switching time, polarization-dependent loss, insertion-dependent loss and repeatability of the optical switch can be realized, meanwhile, the measurement cost of the optical switch is reduced, and the test efficiency and accuracy are improved.

The invention relates to the technical field of microelectronics, semiconductors and communication, and discloses a radio frequency switch chip, and the circuit structure of the radio frequency switch chip comprises a transformer type differential inductor T-L1, a transformer type differential inductor T-L2, a capacitor C1, an NMOS transistor M1, an NMOS transistor M2, a gate resistor RG1, and a gate resistor RG2. The radio frequency switch chip provided by the invention adopts a differential structure, so that the parasitic inductance effect of a grounding key and a wire during packaging and testing can be eliminated, and the insertion loss and the isolation performance are improved; compared with a single-end port, the lower impedance of the differential port is more beneficial to improving the power capacity of the switch; the differential structure allows the transformer type differential inductor to use differential signal characteristics, the equivalent quality factor of the inductor is improved, and the circuit performance is improved; the differential structure can improve the linearity of the circuit, especially the second-order intermodulation effect; the differential structure can be compatible with a modern silicon-based CMOS radio frequency system, and an additional balun is not needed for signal conversion.

The invention discloses an integrated circuit wiring optimization method and apparatus, and an electronic device. The method comprises the steps of obtaining a target network corresponding to initial wiring data of an integrated circuit; the target network comprises a signal network and a sequential network; constructing a transmission matrix corresponding to the signal network, and converting the transmission matrix into a corresponding scattering parameter; determining a first simulation analysis parameter based on the scattering parameter, the first simulation analysis parameter including insertion loss; determining a buffer pitch based on the insertion loss; and optimizing the initial wiring data based on the buffer spacing to obtain wiring data. Through the Buffer spacing obtained after simulation analysis, wiring data can be optimized more accurately.

The invention provides a numerical control delayer, a four-digit numerical control delayer and a manufacturing method of a chip of the four-digit numerical control delayer. The delayer comprises a first single-pole double-throw switch, a second single-pole double-throw switch, a delay unit and a reference unit, the first single-pole double-throw switch comprises two stages of triodes S1 and S2 which are connected in parallel; the second single-pole double-throw switch comprises a triode S3 and a triode S4 which are connected in parallel; one end of the delay unit is connected with the drain electrode of S1, and the other end is connected with the drain electrode of S3; one end of the reference unit is connected with the drain of S2, and the other end is connected with the drain of S4; drain electrodes of the S1 and the S2 are connected with a radio frequency signal input port; drain electrodes of the S3 and the S4 are connected with a radio frequency signal output port; source electrodes of the S1, the S2, the S3 and the S4 are all in direct current grounding, grid electrodes of the S1, the S2, the S3 and the S4 are all connected with a voltage control unit, and on and off of each triode are controlled by controlling grid electrode voltage, so that the delayer is switched between a reference state and a delay state. According to the invention, the insertion loss of the delayer in the millimeter wave frequency band can be reduced.

The invention discloses a band-pass type active frequency selective surface based on double-element composite loading. The band-pass type active frequency selective surface comprises at least one resonance unit which is periodically arranged, the resonance unit sequentially comprises a top metal frequency selection surface layer, a first dielectric structure layer, a middle metal feed layer, a second dielectric structure layer and a bottom metal frequency selection surface layer from top to bottom; the top metal layer and the bottom metal layer are composed of square ring aperture grooves subjected to deformation processing, and the middle feed layer is of a cross zigzag metal structure, plays a role in coupling an electromagnetic field and serves as a bias network of the AFSS. And the metal through holes penetrate through the resonance units in the vertical direction, so that the middle layer feeder line can respectively provide reverse bias voltage for independently regulating and controlling the resonance frequency for the PINs and the variable capacitance diodes on the top layer and the bottom layer. According to the invention, the functions of band switching and wide-range frequency tuning can be met, so that the problem of insertion loss increase caused by limited design frequency regulation and control range and element loading of the AFSS in the prior art can be solved.

The invention provides an all-optical switching system and method based on AWGR and WSS, and relates to the technical field of optical communication, the system comprises a three-stage Clos network structure, the input stage is composed of N N * N WSS modules and used for receiving external optical signals, and the WSS represents a wavelength selection switch; the middle stage is composed of AWGR modules and WSS modules which are deployed in a mixed mode, the number proportion of the AWGR modules is adjustable so as to achieve balance of cost and performance, and AWGR represents an array waveguide grating router; the output stage is composed of N N * N WSS modules; the output port of the input stage WSS module is connected with the input port of the intermediate stage AWGR / WSS module, and the output port of the intermediate stage AWGR / WSS module is connected with the input port of the output stage WSS module. While the optical path blocking performance is ensured, the system cost and insertion loss are reduced, wavelength conflicts are reduced, and the balance between the cost and the performance is realized.

The invention relates to the technical field of optical communication equipment testing, in particular to an integrated optical module multi-parameter testing system and method.The method comprises the steps that a multi-channel parallel testing unit synchronously collects light spot morphology, divergence angles, insertion loss and return loss space and transmission characteristic parameters through a transmission light path and a reflection light path; the parameter collaborative analysis module performs nonlinear correlation analysis and dynamic performance threshold evaluation based on a cross-dimension correlation model; the intelligent calibration engine dynamically adjusts the test benchmark and compensation parameters according to the environment temperature and the equipment aging attenuation model; the fault diagnosis and prediction unit identifies potential defect types of the collimator, constructs a performance degradation prediction model in combination with a working state and environmental stress, and predicts a performance evolution trend according to test data; and the test report generation module automatically generates a standardized and customized dual-mode test report, a quality grade label and a performance optimization suggestion according to the prediction result and the diagnosis conclusion. Therefore, the problems of poor test precision, low test efficiency and the like in the prior art are solved.

The invention discloses an insertion loss board, test equipment, a signal transmission method and a program product, and is applied to the technical field of signal quality test, and the insertion loss board comprises a storage unit which is used for storing each preset signal frequency and a corresponding initial S parameter; the main control unit is used for determining a target signal frequency and a target length; the signal processing unit is used for determining the S parameter of the transmission line with the target length and extracting the insertion loss from the S parameter based on the initial S parameter corresponding to the target signal frequency and the target length; receiving an original to-be-tested signal through an input interface of a signal transmission path, and adjusting the signal transmission path based on the insertion loss so as to enable the insertion loss from the input interface to an output interface of the signal transmission path to accord with the extracted insertion loss; and signal output is carried out through an output interface of the signal transmission path. By applying the scheme of the invention, the size can be reduced on the basis of meeting the functional requirements of the insertion loss plate.

The invention discloses a method and a device for determining working parameters of an adaptive equalizer. The method comprises the following steps: selecting a first initial value and a first offset of an adaptive equalizer in a chip according to a current link rate and cable information; determining a first working parameter of the adaptive equalizer according to the first initial value and the first offset; receiving signal feedback information of a receiving end corresponding to the chip is acquired; when determining that the signal transmission quality is lower than a preset value according to the received signal feedback information, reselecting a second initial value and a second offset of the adaptive equalizer, and obtaining a second working parameter of the adaptive equalizer according to the second initial value and the second offset, and the signal transmission quality is not lower than the preset value when the adaptive equalizer operates according to the second working parameter. According to the method and the device, the technical problem that in the prior art, due to the fact that self-adaptive balanced insertion loss changes exist in a chip under different cable lengths and cable types, frequent manual parameter adjustment is needed, and the operation is relatively tedious is solved.

The invention discloses a C wave band reflection type phase shifter based on a cross-direction coupling line coupler, and belongs to the field of wireless communication and digital signal processing, the reflection type phase shifter is designed based on the cross-direction coupling line coupler, and compared with an existing branch line coupler and an existing Lange coupler, the C wave band reflection type phase shifter has the advantages of being small in size, low in insertion loss, wide in broadband and the like. A digital phase shifter used by a traditional phased-array antenna can be replaced, and the pain point problems of high cost, high power consumption and the like of the traditional phased-array antenna are solved; besides, the reflective phase shifter provided by the invention can be integrated on a PCB, has the advantages of being easy to process, low in cost, small in size and the like, is easy to integrate with a planar printing phased array antenna, and realizes miniaturization and low cost of the phased array antenna.

The invention provides a TF-SAW resonator, a preparation method thereof and a filter, and relates to the technical field of semiconductors. The interdigital electrode comprises piston structures, sub bus bars and recesses, the piston structures are positioned at two ends of the acoustic part, it can be understood that the piston structures are arranged at the tail end areas of the acoustic part on the electrode finger strips, and larger sound velocity difference is realized by changing the sound velocity of the tail end areas; therefore, the transverse mode is reflected in different directions to avoid energy dissipation caused by resonance; on a propagation path of a transverse mode, sub-bus bars and recesses are sequentially arranged, clutter interference is eliminated by causing sound velocity difference, so that clutter mode interference is inhibited to the greatest extent, a Q value is improved, the performance of standing waves in a passband is improved, insertion loss is improved and the like, and the performance of the TF-SAW resonator is further improved.

The hexagonal dual-polarization high-selectivity frequency selective surface comprises a middle filtering layer and two magnetoelectric dipole antennas, and the section of the hexagonal dual-polarization high-selectivity frequency selective surface is hexagonal; the two magnetoelectric dipole antennas have the same structure and are symmetrically arranged relative to the middle filtering layer, the middle filtering layer is a middle metal layer with a central slot, the appearance of the middle metal layer is a regular hexagon, the central slot is hollowed out by a hexagon located in the center, and the middle metal layer is a rectangular metal layer. The six edge grooves extend outwards from the six edges of the hexagonal hollowed-out part respectively, and each edge groove faces one end point of the regular hexagon appearance of the middle metal layer. The middle filtering layer serves as a band-pass filter, electromagnetic waves penetrate through the middle filtering layer during resonance, suppression of low-frequency and high-frequency stop bands is achieved, and meanwhile the middle filtering layer serves as a common ground plane of the two magnetoelectric dipole antennas. According to the invention, the problems of high insertion loss in a wave-transparent window, insufficient out-of-band suppression, over-wide transition zone, poor angle stability and the like of the existing frequency selective surface can be solved.

The invention discloses an ultra-wideband RCS (radar cross section) reduction metasurface with mixed wave absorption and diffuse scattering and a wave-transparent window, and belongs to the technical field of electromagnetic metamaterials. The metasurface adopts a four-layer cascade structure and comprises a first layer of polarization conversion structure, a second layer of 2.5 D lossy structure, a third layer of Jerusalem cross-shaped lossy structure and a fourth layer of frequency selective surface structure. By loading a lumped resistor at a specific position and adopting a metal through hole interconnection technology, dual functions of radar cross section reduction in a 1-20GHz ultra-wideband and low insertion loss wave transmission in a 8-12GHz frequency band are realized. The structure of each layer adopts a highly symmetrical design and has the characteristic of polarization insensitivity, and meanwhile, by optimizing interlayer air gaps and dielectric material selection, the structure compactness is realized on the premise of ensuring the performance. The method has important application value in the aspect of integration of stealth equipment and a communication system.

Provided in the embodiments of the present application are a radio frequency apparatus and a communication device, which are used for meeting the performance requirement of low insertion loss for the radio frequency apparatus. A low-pass filter circuit of the radio frequency apparatus is electrically connected between an input end and a second output end. A first resonant unit of a band-pass filter circuit comprises a second capacitor and a first inductor, wherein a first end of the second capacitor is electrically connected to the input end, and a second end of the second capacitor is electrically connected to a first end of the first inductor; and a second resonant unit of the band-pass filter circuit comprises a third capacitor and a second inductor, wherein a first end of the third capacitor is electrically connected to a first output end, a second end of the third capacitor is electrically connected to a first end of the second inductor, and a second end of the second inductor is electrically connected to a second end of the first inductor. A first capacitor is electrically connected between the second end of the second capacitor and the second end of the third capacitor. The radio frequency apparatus of the present application can reduce the insertion loss, and can meet the performance requirement of low insertion loss.

A cable assembly comprising a connector with a termination that enables high density and high signal integrity. Shields of cables are terminated to a paddle card via a conductive structure attached to a surface of the paddle card. The signal conductors of the cables are terminated to pads on the paddle card that are exposed within openings of the conductive structure. Such a structure creates a ground structure per cable that provides low insertion loss and low crosstalk, even when multiple cables are aligned side by side and terminated in one or more rows. The cables may be drainless, enabling a large number of cables, such as eight cables, to be packed within the width of a paddle card specified in high density standards such as QSFP-DD or OSFP. The cables may nonetheless have large diameter signal conductors, enabling 2.5 or 3 meter assemblies with less than 17 dB insertion loss.

The invention provides a micro-ring resonator and a wavelength division multiplexing network system, and relates to the technical field of photoelectricity. A microring resonator includes: an input port to receive an input optical signal; the two heat adjusting couplers are located on the two sides of the micro-ring waveguide respectively and used for adjusting the coupling ratio of the micro-ring waveguide; the two multi-mode interference devices are respectively connected with the heat adjusting coupler and are used for carrying out heat-light adjustment based on the heat adjusting electrode; the two thermal adjusting electrodes are respectively connected with the multi-mode interference device and are used for adjusting interference parameters of the multi-mode interference device; the voltages of the two thermal adjusting electrodes are the same or different; the micro-ring waveguide is located between the two thermally tunable couplers and is used for performing resonance enhancement on the optical signal of the target wavelength; and the two straight waveguides are respectively connected with the two thermal modulation couplers and the two multi-mode interference devices and are used for transmitting optical signals. Therefore, insertion loss and crosstalk are effectively reduced, and wavelength drift caused by temperature change is compensated at the same time.