Frequency doubler
First Claim
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1. A frequency doubler comprising:
- a first field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain;
a second field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain, the current channels of the first and second field effect transistors being connected in series with each other; and
means for applying across the gate and source of the first field effect transistor and across the gate of the second field effect transistor and the source of the first field effect transistor signal voltages having substantially the same voltage amplitudes and frequencies and having a phase difference of about 180 degrees;
wherein an output signal having a frequency two times that of said signal voltages is obtained from the drain of said second field effect transistor.
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Abstract
A frequency doubler is disclosed in which an input signal is supplied to the respective gates of first and second field effect transistors with a phase difference corresponding to a one half wave of the input signal and a signal of a doubler frequency wave is obtained from the drain of the second field effect transistor.
127 Citations
7 Claims
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1. A frequency doubler comprising:
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a first field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain; a second field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain, the current channels of the first and second field effect transistors being connected in series with each other; and means for applying across the gate and source of the first field effect transistor and across the gate of the second field effect transistor and the source of the first field effect transistor signal voltages having substantially the same voltage amplitudes and frequencies and having a phase difference of about 180 degrees; wherein an output signal having a frequency two times that of said signal voltages is obtained from the drain of said second field effect transistor. - View Dependent Claims (2, 3, 4, 6)
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5. A frequency doubler comprising:
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a first field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain; a second field effect transistor having a gate, a source, a drain and a current channel provided between the source and drain, the current channels of the first and second field effect transistors being connected in series with each other; means for applying a first signal voltage across the gate and source of the first field effect transistor; and means for applying a second signal voltage across the source of the first field effect transistor and the gate of the second field effect transistor, the second signal voltage having substantially the same voltage and frequency and having a phase difference of about 180 degrees with respect to the first signal voltage; wherein an output signal having a frequency two times that of each of said first and second signal voltages is obtained from the drain of said second field effect transistor. - View Dependent Claims (7)
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Specification