Rensheng (Ray) Sun Email & Phone Number

Orange County, California Area

CST joins Dassault.

Orange County, California Area

San Jose, CA

• Conduct research and product design support in the areas of front-end architectures, which include electrical interconnect design, EMI analysis, read/write head design and characterization, and analog electronics and.
• Research in high-speed and low-power front-end system electronic architectures.
• Design/modeling and analysis of flex & suspension interconnects to look into RF immunity (RFI/CPI), crosstalk, and signal integrity. Define specifications w.r.t. RF performance of suspension interconnect.
• Perform full-wave 3D EM analysis with whole hard disk drive (including all details) to characterize the EMI and shielding effectiveness. Improve the RF immunity performance of hard disk drive enclosures based on such.
• Modeling/characterization of magnetic recording write/read heads through 3D full wave EM simulation (tools: CST MWS, Tanner EDA L-Edit, Softmems MEMS Pro): --- working on thin-film nano-scale 3D head structure created.
• Investigate EMI/ESD failures by performing full wave 3D EM analysis with detailed PCBs used by both SSD and traditional drives, looking into common-mode radiation from differential pairs of SAS traces, SoC packages.

Hampton, VA

• Responsible for technical support and leading all other application/support engineers to provide technical assistance to FEKO users in USA/Canada;
• Conducting FEKO training classes, which cover various numerical techniques and hands-on examples;
• Developing application notes and participating in technical marketing.
• Working on various projects for all kinds of RF/microwave applications, including antennas, arrays, antenna placement/integration, radomes, FSS, EMC/EMI, RFID, SAR, RCS, Rotman lens, etc
• Recently focusing on mobile devices’ antenna miniaturization, LTE MIMO antenna design and optimization, metamaterials, performance evaluation of antenna integration on mobile devices
• Some typical projects previously worked on include: - Investigation of the performance of RFID reader/tag antennas, as well as system-level EM performance (such as read range) due to environments; worked with.

East Lansing, MI

• Teaching ECE 476 Electro-Optics;
• Continue the research work on multiphysics modeling with finite element method (FEM).

East Lansing, MI

• Develop FEM code in FORTRAN to model the combined effects (electromagnetic field distribution, microwave power deposition, heat transfer, and thermoset curing) during microwave processing of polymers; excellent.
• Model and design adaptable multimode cavity applicator using HFSS and Comsol FEMLAB (Multiphysics);
• Measure and analyze the complex permittivity of epoxy resins;
• Simulation of multiple section meander-line polarizer (FSS) using HFSS.

Villanova, PA

• Design of millimeter-wave microstrip antenna arrays for a hybrid fiber-optic/wireless communication system using Ansoft Ensemble (Designer);
• Design of high gain microstrip antennas with a high permittivity focusing layer using IE3D;
• Simulations on partially reflective surfaces (PRS) for high gain microstrip antennas;
• Study on curvature effects of conformal antennas in cylindrical structure with FDTD method and corresponding simulations with Remcom XFDTD;
• Design of multiple section meander-line polarizer (FSS) for Lockheed Martin, to realize linear-to-circular polarization conversion or linear polarization rotation;
• Using Evolutionary Programming (EP) algorithm to optimize the performance of above designs.

Ph.D, Electrical Engineering

Dissertation title: Coupled electromagnetic thermal and kinetic modeling for microwave processing of polymers with temperature- and.

Master Of Science, Electrical Engineering

Thesis title: High gain printed antennas for millimeter-wave wireless applications Advisor: Dr. Ahmad Hoorfar

Bs, Electrical Engineering