HFSS Implantable Antenna Simulation Study

I have a spiral-rectangular PIFA that must operate at 403 MHz once implanted in muscle tissue. The stack-up is fixed: a 20 × 20 × 0.2 mm polyimide substrate surrounded by a homogeneous muscle phantom.... (Budget: ₹100 - ₹400 INR, Jobs: Antenna Design, Biomedical Engineering, Data Analysis, Design Optimization, Electrical Engineering, Engineering, Mechanical Engineering, Signal Processing, Simulation, Wireless)