Patent ID: 8854111

Claim:
A radio frequency (RF) switch, comprising: a common port; a first port; a second port; a first semiconductor switching element disposed in a first RF pathway between the common port and the first port; a second semiconductor switching element disposed in a second RF pathway between the common port and the second port; a first pair of direct current (DC) blocking capacitors disposed to isolate the first semiconductor switching element in the first RF pathway; and a second pair of DC blocking capacitors disposed to isolate the second semiconductor switching element in the second RF pathway, wherein to enable the first RF pathway and disable the second RF pathway, a first bias signal is supplied to source and drain nodes of the first semiconductor switching element, and a second bias signal is supplied to source and drain nodes of the second semiconductor switching element, wherein to enable the second RF pathway and disable the first RF pathway, a third bias signal is supplied to source and drain nodes of the first semiconductor switching element; and a fourth bias signal is supplied to source and drain nodes of the second semiconductor switching element, and wherein the first bias signal and the third bias signal are different, and the second bias signal and the fourth bias signal are different.