Millimeter-wave frequency band amplifier based on transmission line coupling effect voltage feedback neutralization

Abstract

The invention discloses a millimeter-wave frequency band amplifier based on transmission line coupling effect voltage feedback neutralization, and belongs to the field of radio frequency and millimeter wave integrated circuit designs. The millimeter-wave frequency band amplifier comprises an N-channel metal oxide semiconductor (NMOS) transistor, a coupled line, a feedback capacitor, a blocking capacitor and a bias resistor, wherein the coupled line consists of two transmission lines having the same lengths; a source end of the NMOS transistor is grounded; a drain end of the NMOS transistor is connected with an L1 end of one transmission line in the coupled line and connected to an output end of a circuit, and an L2 end of the transmission line is connected with a power supply; one end, which is positioned on the same side as the L2, of the other transmission line in the coupled line is connected with the power supply; one end, which is positioned on the same side as the L1, of the other transmission line in the coupled line is connected with one end of the feedback capacitor; the other end of the feedback capacitor is connected with a grid end of the NMOS transistor, and connected with one end of the blocking capacitor and one end of the bias resistor at the same time; the other end of the blocking capacitor is connected with an input end of the circuit; and the other end of the bias resistor is connected with a bias voltage. Through adoption of the amplifier, the gain can be increased; the stability is improved; the noise and power consumption are lowered; the chip area is reduced; and the cost is saved.

Description

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AI Technical Summary

Benefits of technology

In summary, these technical features are described for creating an improved radiofrequency (RF) signal processing system that reduces energy usage while maintain good quality factors at different frequencies. Additionally, there may also include improvements on noise reduction or reducing interference between signals caused by other components such as filters used during reception. Overall, these techniques improve efficiency and lower costs over existing systems.

Problems solved by technology

This patented describes how improving performance can help increase signal transmission rates over longer distances without consuming too much space or requiring expensive components like an antenna array. It suggests adding extra circuitry that compensates for any distortion caused during signals transmitted through different types of media such as airwaves.

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