Transparent stealth structure

A transparent stealth structure comprising:

• a first transparent film structure stacked on a front surface of a transparent base, the first transparent film structure causing energy loss of incident electromagnetic waves having a target frequency to change a phase of transmitted electromagnetic waves propagating toward the transparent base;
• and
• a second transparent film structure stacked on a back surface of the transparent base, the second transparent film structure reflecting the transmitted electromagnetic waves having passed through the transparent base while adjusting a phase of reflected waves propagating toward the first transparent film structure,
• wherein the first transparent film structure comprises a first front transparent conductive pattern having a first sheet resistance and a second front transparent conductive pattern filling a region without the first front transparent conductive pattern in the first transparent film structure and having a second sheet resistance greater than the first sheet resistance, and
• the second transparent film structure comprises a first rear transparent conductive pattern having a third sheet resistance and a second rear transparent conductive pattern filling a region without the first rear transparent conductive pattern in the second transparent film structure and having a fourth sheet resistance greater than the third sheet resistance,
• wherein a bottom surface of the first front transparent conductive pattern and a bottom surface of the second front transparent conductive pattern are in direct contact with the front surface of the transparent base, and
• a top surface of the first rear transparent conductive pattern and a top surface of the second rear transparent conductive pattern are in direct contact with the back surface the transparent base.