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Microwave frequency amplifier with low noise, with optimal amplification, stability and optimal noise control.
Microwave frequency amplifier with low noise, with optimal amplification, stability and optimal noise control.
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机译:微波放大器,噪声低,具有最佳的放大,稳定性和最佳的噪声控制。
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摘要
A gallium arsenide MESFET amplifier circuit employing a parallel feedback network (17) having first (18) and second (20) transmission line section filtering networks connected on either side of a series R-C-R circuit (R1, C, R2). In one optimized embodiment, the transmission line sections each include low and high impedances unequal in length to one-quarter wavelength. The use of two discrete resistors, together with the filtering networks to eliminate thermal noise generated by the resistors, provides optimum gain, low noise, and stable operation over a wide range of microwave frequencies.
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