Smart contact lens

A smart contact lens, comprising:

• a visible area;
• an outer ring area, encircling the visible area;
• a signal source, disposed in the outer ring area;
• an antenna assembly, disposed in the outer ring area and connected to the signal source;
• an induction coil, disposed in the outer ring area and encircling the antenna assembly;
• a first high pass filter and a first switch, connecting the signal source to a first position of the induction coil;
• a second high pass filter and a second switch, connecting the signal source to a second position of the induction coil;
• an induction module, disposed in the outer ring area;
• and
• a low pass filter, connected to the induction coil and the induction module, wherein a part between the first position and a terminal end of the induction coil and the antenna assembly jointly resonate at a first ultra-high frequency band with the first switch being closed and the second switch being open, and
• a part between the second position and the terminal end of the induction coil and the antenna assembly jointly resonate at a second ultra-high frequency band with the first switch being open and the second switch being closed, wherein the first ultra-high frequency band and the second ultra-high frequency band are between 865 MHz and 928 MHz.