Antenna sensor for deterioration assesment in mechanical contraption

In this paper the design of an antenna sensor for deterioration in mechanical contraption at high frequency to attain more sensitivity and high gain is proposed. The design & simulation of a wireless antenna sensor for deterioration assessment in mechanical contraption is presented. Here the length of a patch antenna governs the antenna's resonance frequency and a patch antenna bonded to a structural surface can be used to measure mechanical deterioration propagation by interrogating resonance frequency shift due to antenna length change. In comparison with existing approaches such as radio frequency identification, the frequency doubling scheme is proposed as a new signal modulation approach for the antenna sensor. A circular patch receiving and transmitting antenna sensor is designed using Advanced Design System (ADS) software. And both the patch antennas are coupled using a matching network to form a frequency doubling antenna sensor. A split ring resonator is designed and simulated using Advanced Design System (ADS). The theoretical analysis of resonant frequency with and without stress is also represented in detail, to know about the performance of the resonator.