Patent ID: 6949985

Claim:
An electrostatically actuated MEMS switch for microwave and millimeter wave signals with DC to RF isolation and a de-actuation device comprising: a first dielectric substrate having an input transmission line and an output transmission line deposited on a front surface of said first dielectric substrate, said input transmission line being separated by a gap from said output transmission line along a direction of propagation of said microwave and millimeter wave signals; a cantilever connected to said input transmission line and with projection overlaps at least a part of said output transmission line; a first actuation electrode in a form of resistive layer for actuating said cantilever and for DC to RF isolation, with at least a portion being deposited within said gap between said input transmission line and said output transmission line, forming an overlapped portion with said cantilever, said first actuation electrode being connected to a first actuation electrode line having a length and a width; a second actuation electrode in a form of resistive layer for actuating said cantilever and for DC to RF isolation, with one end connected electrically to said input transmission line, said second actuation electrode being connected to a second actuation electrode line having a length and a width; a conducting film on said first dielectric substrate forming a ground plane for the propagating microwave and millimeter wave signals; and a second dielectric substrate with a third actuation electrode in a form of resistive layer for de-actuating said cantilever and for DC to RF isolation, having a length and a width and with at least a portion being deposited in region overlapping said cantilever, forming an overlapped portion between said third actuation electrode and said cantilever, said third actuation electrode being connected to a third actuation electrode line having a length and a width.