title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð°Ð»Ð¾ÑÑÐ¼ÑÑÐµÐ³Ð¾ Ð¾Ð¿Ð¾ÑÐ½Ð¾Ð³Ð¾ Ð°Ð²ÑÐ¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° ÑÐ°Ð½ÑÐ¸Ð¼ÐµÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ð° Ð²Ð¾Ð»Ð½ Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¿ÐµÑÐµÑÑÑÐ¾Ð¹ÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¾ÑÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The development of a super high frequency ultra-low-noise reference oscillator with electrical frequency tuning
Creators: name: ÐÐ²Ð°Ð½Ð¾Ð²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¾Ð¿Ð¾ÑÐ½ÑÐ¹ Ð°Ð²ÑÐ¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
Ð¼Ð°Ð»Ð¾ÑÑÐ¼ÑÑÐ¸Ð¹ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ
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Ð´Ð¾Ð±ÑÐ¾ÑÐ½Ð¾ÑÑÑ
reference oscillator
low noise amplifier
MMIC
phase noise
oscillatory system
varactor
frequency tuning
dielectric resonator
Q factor

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description: The subject of the graduate qualification work is: âThe development of a super high frequency ultra-low-noise reference oscillator with electrical frequency tuningâ. The purpose of this work is the research and development of an electrically tunable high-Q-type oscillatory system based on a dielectric resonator for developing a super high frequency low-noise reference oscillator with a phase noise level less than -130 dBc/Hz at 10 kHz offset. The design and technical characteristics of the resonator with mechanical frequency tuning from 9,85 to 10,1 GHz and electrical frequency tuning within 2.4 MHz using a varactor are given. The resonator in the entire tuning range has a loaded Q factor more than 7200. A reference oscillator was simulated using an external positive feedback based on the developed oscillatory system. To obtain significant frequency tuning and a low level of phase noise in the entire tuning range, the oscillator was modified by introducing an additional electrically controlled phase shifter controlled from the voltage supplied to the varactor of the oscillatory system. This allowed to create an electrical frequency tuning in a fairly wide frequency range of 2,4 MHz. The mechanical tuning range remained the same. It is shown that using a low noise amplifier HMC-C072 as part of an oscillator based on a dielectric resonator and using a special electrical tuning scheme, it is possible to achieve a phase noise level less than -130 dBc/Hz at 10 kHz offset in the entire frequency tuning range.