Millimeter wave fundamental frequency oscillation circuit and millimeter wave oscillator

An oscillation circuit and millimeter wave technology, applied in the field of radio frequency communication, can solve the problems of low output power and high power consumption of the millimeter wave oscillator, and achieve the effects of increasing the operating frequency and output power, improving efficiency, and reducing parasitic capacitance.

Active Publication Date: 2017-02-15
青岛君戎华讯太赫兹科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a millimeter-wave fundamental frequency oscillation circuit, aiming to solve the problems of low output power and high power consumption of existing millimeter-wave oscillators

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  • Millimeter wave fundamental frequency oscillation circuit and millimeter wave oscillator
  • Millimeter wave fundamental frequency oscillation circuit and millimeter wave oscillator
  • Millimeter wave fundamental frequency oscillation circuit and millimeter wave oscillator

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0018] In the embodiment of the present invention, the negative resistance effect of the cross-coupled pair tube is used to compensate the loss of the resonant circuit, the inductance is used to form a transformer structure to reduce the parasitic capacitance of the switch tube, and the output signal of the buffer stage is fed back to the resonant circuit to improve The operating frequency and o...

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Abstract

The invention is applicable to the field of radio frequency communication, and provides a millimeter wave fundamental frequency oscillation circuit and a millimeter wave oscillator. The millimeter wave fundamental frequency oscillation circuit comprises a bypass capacitor, an output matching unit, a negative resistance effect generating unit, a buffer unit and an inductance voltage-transformation unit, wherein the output matching unit maximizes secondary harmonic output energy of the oscillator, and outputs a millimeter wave oscillation signal; the negative resistance effect generating unit generates a negative resistance effect to compensate for loss of a resonance circuit; the buffer unit generates a buffer stage output signal; the inductance voltage-transformation unit forms a transformer structure by utilizing inductors so as to reduce stray capacitance of a switching tube, and feeds back the buffer stage output signal to the resonance circuit. The millimeter wave fundamental frequency oscillation circuit and the millimeter wave oscillator utilize the coupling effect of an output buffer stage inductor and a resonance loop inductor, utilize the coupling effect of gate end and strain end inductors of an active switching device to improve the output frequency and energy of the oscillator, lead out the output signal from a common-mode node of the circuit, achieve output matching by means of a coplanar waveguide structure, extract the secondary harmonics of the circuit, and implements the millimeter wave oscillation circuit with high output frequency and output power.

Description

technical field [0001] The invention belongs to the field of radio frequency communication, and in particular relates to a millimeter wave fundamental frequency oscillation circuit and a millimeter wave oscillator. Background technique [0002] With the rapid development of emerging wireless communication and millimeter-wave radar, oscillators, as key components of communication and radar systems, are also required to have lower phase noise, higher output frequency and greater output power to improve their performance. [0003] High-frequency periodic signals can usually be obtained directly from fundamental frequency oscillators or superharmonic oscillators. Due to the development of CMOS technology, with the reduction of the size of MOS devices, its ft and fmax have been greatly improved, but the current oscillation The oscillator cannot directly provide the fundamental frequency oscillation signal of the millimeter-wave frequency band. At present, the fundamental frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B5/32
CPCH03B5/32
Inventor 周海峰丁庆
Owner 青岛君戎华讯太赫兹科技有限公司
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