Radio frequency switch

A switch adapted to establish or break transmission of a radio frequency signal, said switch including:

• a first conductive finger;
• a second conductive finger, the transmission of said radio frequency signal taking place between the first conductive finger and the second conductive finger;
• at least one conductive electrode;
• a layer made of a phase-change material, referred to as a PCM layer, the phase-change material being able to change state between a crystalline state and an amorphous state, said PCM layer having a lower surface and an upper surface;
• said first and second conductive fingers being spaced apart by a non-zero distance and in contact with the lower surface of the PCM layer;
• said conductive electrode being in contact with the upper surface of the PCM layer;
• conveying an actuation signal through the PCM layer between the first conductive finger and the conductive electrode modifying state of the phase change material in a first zone situated between the first conductive finger and the conductive electrode;
• conveying an actuation signal through the PCM layer between the second conductive finger and the conductive electrode modifying state of the phase change material in a second zone situated between the second conductive finger and the conductive electrode;
• such that, when the first and second zones of the phase change material are in the crystalline state, the first and second zones allow transmission of the radio frequency signal between the first conductive finger and the second conductive finger through the PCM layer, and, when the first and second zones of the phase change material are in the amorphous state, the first and second zones prevent transmission of the radio frequency signal between the first conductive finger and the second conductive finger through the PCM layer.