Impedance transformer, integrated circuit device, amplifier, and communicator module
AssigneeFujitsu Limited
InventorSatoshi Masuda
Life of this patent
Estimating the term…
Abstract
An impedance transformer includes a first transmission line having a first impedance and provided over a first substrate having a first permittivity; a second transmission line and a third transmission line having an impedance lower than the first impedance and provided over a second substrate having a permittivity higher than the first permittivity, the second transmission line and the third transmission line being electrically coupled to the first transmission line; and a resistor coupled between the second transmission line and the third transmission line.
Claims15
An impedance transformer comprising:
- a first transmission line having a first impedance and provided over a first substrate having a first permittivity;
- a second transmission line and a third transmission line having an impedance lower than the first impedance and provided over a second substrate having a permittivity higher than the first permittivity, the second transmission line and the third transmission line being electrically coupled to the first transmission line;
- and
- a resistor coupled between the second transmission line and the third transmission line.
An integrated circuit device comprising:
- a first transmission line having a first impedance and provided over a first substrate having a first permittivity;
- a second transmission line and a third transmission line having an impedance lower than the first impedance and provided over a second substrate having a permittivity higher than the first permittivity, the second transmission line and the third transmission line being electrically coupled to the first transmission line;
- a resistor coupled between the second transmission line and the third transmission line;
- and
- an integrated circuit coupled electrically to the second transmission line and the third transmission line.
A communicator module comprising:
- an amplifier that amplifies a signal;
- and
- a terminal that outputs the signal amplified by the amplifier, wherein the amplifier includes,
- a first transmission line having a first impedance and provided over a first substrate having a first permittivity,
- a second transmission line and a third transmission line having an impedance lower than the first impedance and provided over a second substrate having a permittivity higher than the first permittivity, the second transmission line and the third transmission line being electrically coupled to the first transmission line,
- a resistor coupled between the second transmission line and the third transmission line, and
- an integrated circuit coupled electrically to the second transmission line and the third transmission line.
Dependencies are inferred from the claim text.