31 results about "HFSS" patented technology

The invention discloses a method for manufacturing a microwave hybrid integrated circuit based on an Ansoft HFSS (High Frequency Structure Simulator). The method comprises the steps of: determining a source impedance and a leakage impedance: designing a prototype circuit of an input and output matching network; carrying out segmented optimization design by using the Ansoft HFSS; designing a prototype circuit of a stabilizing network; carrying out optimization design on an input part circuit; exporting simulation data of the output network and the input circuit to an ADS (Advanced Design System), electrically connecting with an active device, judging whether the circuit reaches the expected requirements including gain and stability, if yes, completing the design; and if not, carrying out fine control optimization on the circuit until reaching the requirement. On the premise of meeting full-frequency band stabilizing requirement, the invention realizes working frequency, gain and output power specified by the micro hybrid integrated circuit, and ensures that the microwave hybrid integrated circuit has better maneuverability.

The invention discloses a sectional type through hole modeling method including influence of a plane on a resonance characteristic. The type through hole modeling method comprising the seven steps of: 1, decomposing a through hole structure in a center position of each flat plate; 2, extracting capacitor and inductor parameters in all parts of equivalent circuits of a through hole; 3, building an equivalent circuit map of a top microstrip line to an upper through hole vertical conversion structure and a lower through hole to a bottom microstrip line vertical conversion structure; 4, extracting a parameter impedance of the plane to a position where the center of a circle of the through hole is; 5, adding a Zpp obtained in the step 4 to an equivalent circuit model of an intermediate vertical through hole; 6, sequentially cascading all equivalent circuits of the through hole according to the upper part, the middle part and the lower part, and respectively adding a terminal port at two ends of the final equivalent circuit; and 7, building a one-order circuit model with a through hole structure in an ADS (Application Development System), establishing a physical model of the through hole in a simulation software HFSS (High Frequency Structure Simulator), calculating an S11 parameter and an S21 parameter, and comparing the obtained result with the result in the step 6.

The method for optimizing the PCB microstrip line by adopting response surface method-genetic algorithm of the present invention comprises: establishing the electromagnetic simulation model of the PCB microstrip line based on HFSS software, obtaining the return loss and the insertion loss of the microstrip line based on the model, and With substrate thickness, microstrip line width, microstrip line thickness, and dielectric constant as design parameters, and return loss as target value, 29 sets of test calculations and simulations are designed, and the response surface method is used to analyze the return loss under the condition of 5GHZ. The relationship between its influencing factors is fitted, and the advantage of searching the global optimal solution of genetic algorithm is used to optimize the fitting function, and the combination parameters with the minimum return loss are obtained. The accuracy of the optimization results is verified by HFSS simulation simulation, and this method also has a guiding effect on the optimization design of other interconnect structures.

The invention discloses a novel dual-frequency / high-radiation-efficiency planar microwave resonant antenna, which includes a rectangular dielectric substrate, the bottom surface of which is a ground radiation patch, and a right-angled fold line symmetrical concave metal foil placed on the upper surface of the dielectric substrate. Chip feeder. Solder the inner core directly to the feeder using the SMA connector, and connect the ground radiation patch. The invention uses the electromagnetic simulation software ANSYS HFSS for simulation design, real-time simulation by changing the shape and size of the feeding antenna, and joint calculation of multi-parameter simulation data and simulation diagrams to optimize the structure, material and process of the antenna, confirm The reliability of the simulation results. Increase the effective radiation resistance of the antenna, reduce the generation of high-order modes, improve the radiation efficiency of the antenna, improve the overall effect of the antenna system, and realize the requirements of dual frequency points and high radiation efficiency on the same substrate and the same plane, and achieve dual frequency points Applications.

The invention discloses a wireless charging simulation method capable of combining MATLAB (Matrix Laboratory) software with HFSS (High Frequency Structure Simulator) software. Firstly, on the basis of a coupled-mode theory, a wireless charging model of a coil antenna is established; then, according to a circuit model theory and analysis for a resonant mode wireless charging mathematical model, the parameter of the coil antenna is determined; according to the parameter of the coil antenna and the resonant mode wireless charging mathematical model, the practical device parameter and the theoretical model parameter of the coil antenna are obtained; through the MATLAB software, the wireless charging model of the coil antenna is realized; and through the HFSS software, the wireless charging model of the coil antenna is solved, optimized and simulated, and a simulation result is output, wherein the simulation result comprises a coil antenna parameter, charging efficiency and an electromagnetic field distribution diagram. By use of the method, in virtue of he powerful numerical value calculation and modeling functions of the MATLAB, the HFSS is adopted to carry out accurate simulation on the resonant mode wireless charging mathematical model, wireless charging simulation is effectively optimized, and a foundation is laid for the market requirements of resonant mode wireless charging.