Fast Pin RF Switch Utilizing a Resonant Bias Network.

摘要

A new mode of operation of the PIN diode shunt RF switch is described. This mode produces RF switching speeds that are considerably faster than the applied bias pulse risetime and pulse widths that are considerably shorter than the applied bias pulse width. The basic principle utilizes the fast ''snap-off''action of the PIN diode to shock excite an L-C bias network. The bias is easily adjusted so that RF can flow through the switch for only one-half cycle of this bias circuit ringing. This new mode of operation is important to the development of very short range radar fuses. (ERA citation 04:014320)