RF Designs and Simulations

The desirable features of antenna for Airborne SAR applications include shaped radiation pattern and wide bandwidth capability, good cross polarization isolation and high power capability. Shaped radiation across the track improves the target dynamic range and compensates the requirement of STC (Sensitivity Time Control) correction at receiver end. Wide bandwidth performance results in finer resolution. Planar array antenna is preferred as compared to reflector type antenna for less air drag. More Detail: Microstrip and Printed Antenna Design

Due to project complexity and cost factor, designer first simulates design using commercial EDA tools to get performance data before real production.  Design cycle time plays a big part in determining a product launch schedule. Companies are under enormous pressure to reduce the time and cost of their design cycle.   Simulation tool capability and the way tools are used, plays important role in design cycle time and cost . There are simulation technologies available that can change the way complex integrated array antenna are designed. One solution enables use of different solvers for radiator and 3D feeder networks separately. This hybrid-design technology reduces total design iteration time significantly. Agilent has three most established EM simulation technologies: Method-of-moments (MoM), finite element method (FEM) and finite difference time domain (FDTD). This paper proposes how to use multiple EM simulation solvers along with other techniques thro...