| In recent years, mobile communication and Web of Things technology hasgradually become the new growth point of economy in our country. Antenna which is animportant radio frequency front end is mainly used to transmit and receive radiowaves, it is rapidly developing towards more frequency, miniaturization, intelligentdirection.Timeliness and efficiency of antenna design demand is higher andhigher.Traditional antenna design software or single design methods have been unableto meet the current needs.Based on the above requirements, we study the forefront of two systems commondevices-antenna. As more and more wireless RF products promotion and application,antenna is also various in different kinds and different applications. Practicalapplications, we use of novel ways to design two antennas. One is a dual-band PIFAantenna, first of all, it has the characteristics of dual-frequency, can be used for bothGSM900MHz spectrum also can work in ISM2450MHz.It meets new generation ofwireless communication system for spectrum and bandwidth requirements, in addition italso has the characteristics of small volume, light weight, low profile, low SAR.Anothermicro-strip patch antenna is applied in the field of RFID communication, which has thecharacteristics of anti-jamming and circularly polarized, also work in ISM2450MHzspectrum.Circular polarization micro-strip antenna which designed by the above methodis small in size,has low cost, strong anti-interference ability and good circularpolarization characteristic and relatively wide bandwidth.The circular polarization antenna is designed by using an interface functioncombined with matlab software and HFSS, it is a redefinition of using HFSSsoftware.The HFSS script can be written and modified in matlab.This method can makefull use of matlab software powerful analysis and computing power.Antenna modelingand part of data analysis work can be done in matlab, for some conventional antennacan build modular design process, this method is also more convenient for the antennaarray built, greatly increase the efficiency of design.This is a novel and effective designmethod which can increase numerical calculation and modeling in methodological, alsois an breakthrough in optimization and timely of the antenna design.This methodcombine matlab rich modeling and numerical computation ability with the precision ofelectromagnetic simulation software HFSS simulation function together. Also can introduced some excellent optimization algorithm and parameter analysis method touse.Additionally we expand the limitations of the HFSS using scripts modeling andsimulation in matlab, extract the HFSS software corresponding script about variousfrequency sweep and eigenmode solution set, and through HFSS-matlab-APIsuccessfully connected with matlab, complete the HFSS solution and fast frequencysweep Settings become possible in matlab, further improve the integrity and systemic ofthe two software use combination. Finally, set up the corresponding model and solvemodel to verified the feasibility of the eigenmode solution setting and rapid frequencysweep respectively. |
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