A reconfigurable distributed amplifier circuit

Abstract

The invention provides a reconfigurable distributed amplifier circuit which includes an input transmission line and an output transmission line. The input transmission line and the output transmissionline are both formed by cascade connection of an on-chip interconnect structure. The distributed amplifier circuit further includes a plurality of sets of gain units arranged in parallel between theinput transmission line and the output transmission line. Each set of the gain units is inserted and arranged between the on-chip interconnect line structures. The input end of the gain unit is connected with the input transmission line, and the output end of the gain unit is connected with the output transmission line. The distributed amplifier circuit is also coupled with a reset structure. Thereconfigurable distributed amplifier circuit can realize miniaturization and multifunction integration of the circuit structure without changing the circuit main body structure, realizes performance reconstruction of the amplifier working band, gain, linearity, noise and the like, and has the advantages of low power consumption and low cost.

Description

technical field [0001] The invention belongs to the technical field of integrated circuits, in particular to a reconfigurable distributed amplifier circuit. Background technique [0002] The basic principle of the distributed amplifier is to use the parasitic capacitance of the transistor and the inductance element to form a signal transmission line, thereby overcoming the gain roll-off caused by the parasitic capacitance, and breaking through the limitation of the gain-bandwidth product of the traditional amplifier. frequency or even more than ten times the frequency) to obtain a larger flat gain and realize wider-band signal amplification. It has been widely used in the field of ultra-wideband MMIC (Monolithic Microwave Integrated Circuit, monolithic microwave integrated circuit) including microwave power amplifiers It has important academic value in the research field of broadband amplifiers for radio frequency and microwave circuits. The application fields of distribute...

AI Technical Summary

Problems solved by technology

[0003]With the rapid development of wireless communication technology, many distributed amplifier circuits with different structures have been researched, such as cascade structure, matrix structure and combined artificial transmission line structure, etc. Compared with the past, the performance of distributed amplifier circuits such as gain, frequency band, noise and output power has been greatly improved, but the diversification trend of communication standards puts forward higher requirements for the hardware of communication systems. The traditional fixed frequency band, Microwave integrated circuits with a single function can no longer meet the development needs of next-generation wireless communications such as 5G, WiGig, and E-band

At present, there are few distributed amplifier circuits with reconfigurable characteristics.

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