Millimeter-wave passive FET switch using impedance transformation networks
AssigneeTaiwan University
InventorsHuei Wang, Yu-Jiu Wang, Kun-You Lin
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Abstract
The present invention provides a millimeter-wave passive FET switch by using impedance transformation network to transfer the effective capacitance seen from the drain to source of an FET at off-state to low impedance, while transfer low impedance seen at on-state to high impedance. Since both on-state and off-state are transferred to high impedance, and low impedance respectively, a high-performance switch can be achieved. Since the size of the transformation network is small, the performance of the switch can be promoted with low cost.
Claims4
A millimeter-wave passive FET switch, comprising a signal line, an FET, an impedance transformation network, wherein a gate of said FET is connected with a voltage for controlling the impedance between a drain and a source of said FET, said drain and said source are series connected with said impedance transformation network, and then parallel connected or series connected with said signal line.
Dependencies are inferred from the claim text.