Injection locking oscillation circuit, frequency adjustment method and injection locking oscillator
An oscillation circuit and injection locking technology, which is applied in the field of radio frequency, can solve the problems that the output frequency cannot be effectively changed, and the oscillation circuit depends on
Pending Publication Date: 2019-08-09
深圳市华讯方舟智能信息技术有限公司
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[0004] The embodiment of the present application provides an injection-locked oscillation circuit, a method for adjusting the frequency of the oscillation circuit, and an injection-locked oscillator, aiming at solving the problem that the output frequency of the oscillation circuit only depends on the resonant tank and the parasitic capacitance of each node, and the output frequency cannot be effectively changed , the problem that the output frequency of the oscillator chip can only be adjusted by changing the power supply voltage of the oscillator circuit
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[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are of the present application. Part of the embodiment, but not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.
[0029] The term "comprising" in the specification and claims of the application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or un...
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The embodiment of the invention belongs to the technical field of radio frequency, and provides an injection locking oscillation circuit, a frequency adjustment method of the oscillation circuit and an injection locking oscillator. A reference frequency signal is injected into a buffer module through the signal injection module, so that the buffer module outputs a corresponding oscillation feedback signal. The oscillation feedback signal is used for locking the frequency of an initial oscillation signal generated by a resonance loop module into a frequency range set by the reference frequencysignal source, an output matching module is used for receiving a buffer isolation oscillation signal outputted by the buffer module, and the energy enhancement processing is carried out on the secondharmonic output of the buffer isolation oscillation signal to output the corresponding oscillation output signal, so that the problems that the output frequency of the oscillating circuit only dependson the parasitic capacitance of the resonant loop and each node, the output frequency cannot be effectively changed, and the output frequency of the oscillator chip can only be adjusted by changing the power supply voltage of the oscillating circuit, are solved.
Description
Technical field [0001] The embodiments of the present application belong to the field of radio frequency technology, and in particular, relate to an injection-locked oscillation circuit, a frequency adjustment method of the oscillation circuit, and an injection-locked oscillator. Background technique [0002] At present, with the development of millimeter wave and terahertz technology, millimeter wave and terahertz have broad application prospects in the fields of communications, electronic countermeasures, radar, electromagnetic weapons, astronomy, medical imaging, non-destructive testing, environmental monitoring and safety inspection. As a key component of millimeter wave and terahertz application technologies, oscillators have also received great attention from researchers. [0003] However, the output frequency of the oscillation circuit only depends on the resonant circuit and the parasitic capacitance of each node. Therefore, the output frequency cannot be effectively change...
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IPC IPC(8): H03B5/12H03L7/099
CPCH03B5/1228H03B5/1281H03B5/1296H03L7/099
Inventor 丁曙煜许奔蓝永海冯军正王鑫
Owner 深圳市华讯方舟智能信息技术有限公司