Amplifier for FM antennas
AssigneeHarada Industry Co., Ltd.
InventorKatsushiro Ishibayashi
Life of this patent
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Abstract
An amplifier comprising a transformer and a plurality of FETs, for example, three FETs. An input terminal, which receives a signal from an FM antenna, is connected to one end of the primary winding of the transformer. A power-supply voltage is applied to one end of the secondary winding of the transformer. A given middle part of the secondary winding is connected to an output terminal. The transistors have their source connected in parallel to the other end of the primary winding of the transformer, their drains connected in parallel to the other end of the secondary winding, and their gates connected to the ground.
Claims2
An amplifier for FM antennas, comprising:
- a transformer in which an input terminal is connected to one end of primary winding, a power-supply voltage is applied to one end of the secondary winding and a given middle part of the secondary winding is connected to an output terminal;
- and
- a plurality of field-effect transistors having sources connected in parallel to the other end of the primary winding of the transformer, drains connected in parallel to the other end of the secondary winding and gates connected to the ground.
Dependencies are inferred from the claim text.