AMPLIFIER
First Claim
1. An amplifier comprising:
- a pair of input terminals configured to receive as input a transmission signal being differential and two-tone;
a pair of output terminals;
a coil configured to have both terminals connected with the pair of input terminals, respectively, and to have a center tap;
a first transistor configured to have a gate connected with one of the terminals of the coil, and an output terminal of the first transistor connected with one of the pair of output terminals;
a second transistor configured to have a gate connected with another of the terminals of the coil, and an output terminal of the second transistor connected with another of the pair of output terminals;
a diode configured to have a terminal connected with the center tap of the coil; and
a bias circuit configured to be connected with another terminal of the diode, and to output a predetermined gate voltage to turn on the first transistor and the second transistor,wherein the diode adjusts a voltage at the terminal of the diode depending on a signal level of a double harmonic wave of the transmission signal supplied to the terminal of the diode from the center tap of the coil.
3 Assignments
0 Petitions
Accused Products
Abstract
An amplifier includes two input terminals to receive a differential, two-tone transmission signal; two output terminals; a coil having terminals connected with the input terminals respectively, and a center tap; a first transistor having the gate connected with one terminal of the coil, and the output terminal connected with one output terminal; a second transistor having the gate connected with the other terminal of the coil, end the output terminal connected with the other output terminal; a diode having a terminal connected with the center tap; and a bias circuit connected with the other terminal of the diode to output a gate voltage to turn on the first and second transistors. The diode adjusts the terminal voltage depending on a signal level of a double harmonic wave of the transmission signal supplied to the terminal of the diode from the center tap.
10 Citations
7 Claims
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1. An amplifier comprising:
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a pair of input terminals configured to receive as input a transmission signal being differential and two-tone; a pair of output terminals; a coil configured to have both terminals connected with the pair of input terminals, respectively, and to have a center tap; a first transistor configured to have a gate connected with one of the terminals of the coil, and an output terminal of the first transistor connected with one of the pair of output terminals; a second transistor configured to have a gate connected with another of the terminals of the coil, and an output terminal of the second transistor connected with another of the pair of output terminals; a diode configured to have a terminal connected with the center tap of the coil; and a bias circuit configured to be connected with another terminal of the diode, and to output a predetermined gate voltage to turn on the first transistor and the second transistor, wherein the diode adjusts a voltage at the terminal of the diode depending on a signal level of a double harmonic wave of the transmission signal supplied to the terminal of the diode from the center tap of the coil. - View Dependent Claims (2, 3, 4, 5)
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6. An amplifier comprising:
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an input terminal configured to receive as input a transmission signal being differential and two-tone; an output terminal; a filter con figured to be connected with the input terminal, and to transmit a double harmonic wave of the transmission signal; a coil configured to have a terminal connected with an output terminal of the filter; a transistor configured to have a gate connected with an input terminal of the filter, and an output terminal of the transistor connected with the output terminal; a diode configured fee have a terminal of the diode connected with another terminal of the coil; and a bias circuit configured to be connected with another terminal of the diode, and to output a predetermined gate voltage to turn on the transistor, wherein the diode adjusts a voltage at the terminal of the diode depending on a signal level of the double harmonic wave of the transmission signal supplied to the terminal of the diode via the coil. - View Dependent Claims (7)
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Specification