Based on a design example of antenna stabilized platform, product design method of the virtual prototyping-based simulating design from load analysis to whole model structure analysis was explained.

The paper presents the scheme of structural design of this radar and makes selection of stepping motor via the counting of wind load and inertia load of antenna.

Finally, the antenna, ASK modulation, power supply of the tag, load impedance modulation, demodulation, power supply sensor and HF power amplifier were realized.