Millimeter-wave frequency multiplier and cascaded frequency multipliers

Abstract

The invention discloses a millimeter-wave frequency multiplier and cascaded frequency multipliers, belonging to the technical field of radio frequency / millimeter wave integrated circuits. The frequency multiplier provided by the invention comprises a pseudo-differential amplifier, an LC parallel resonator cavity and an LC series resonator cavity, wherein the LC parallel resonator cavity is connected between the output end of the pseudo-differential amplifier and a power supply VDD (Voltage Drain Drain), the LC series resonator cavity is connected between the output end of the pseudo-differential amplifier and a ground wire, both input ends of the pseudo-differential amplifier are respectively connected with the positive end and the positive end of an input baseband signal (f0); and the LCparallel resonator cavity has the resonation frequency of 2f0, and the LC series resonator cavity has the resonation frequency of 4f0. The cascaded frequency multipliers provided by the invention comprise a plurality of the frequency multipliers which are sequentially connected through a single-to-double passive transformer. The millimeter-wave frequency multiplier and the cascaded frequency multipliers, provided by the invention, have the advantages of low power consumption, pure frequency spectrum of a frequency-multiplication output signal, good harmonic suppression performance, strong output signal, high frequency and easiness for single-chip integration on a silica-based process.

Description

technical field [0001] The invention belongs to the technical field of radio frequency / millimeter wave integrated circuits, and in particular provides a millimeter wave frequency multiplier and a cascaded frequency multiplier. Background technique [0002] Millimeter waves are radio waves with a wavelength of 1-10 millimeters (frequency 30-300 GHz). Millimeter wave technology can be widely used in satellite communication, navigation, remote sensing and telemetry, astronomical observation and other fields. In recent years, with the rapid development of integrated circuit technology, it has become possible to realize millimeter-wave key circuits and systems on semiconductor integrated circuits and even silicon-based CMOS integrated circuits, thus greatly expanding the application of millimeter-wave technology in people's daily life. Applications, such as 60GHz local point-to-point ultra-high-speed wireless communication, 77GHz car navigation and anti-collision radar, 94GHz mic...

AI Technical Summary

Problems solved by technology

[0004] At present, many frequency multiplier solutions and technologies described in existing literature and patents do not solve the problem of high power consumption, which greatly limits the application of these technologies, such as battery-powered personal mobile terminals The power consumption requirements are very high; although some have the characteristics of low power consumption, the output spectrum is not clean, and the cost of other harmonics is too high to meet the system requirements; the output frequency multiplier signal is too weak, and high power consumption is still required. The frequency amplifier amplifies the frequency multiplied signal, which loses the advantage of low power consumption

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