title: Ð¤Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°ÑÐµÐ»Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ñ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð¹ ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸ÐµÐ¹ Ð¡ÐÐ§-Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ð° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½Ð¾Ð³Ð¾ ÐÐ£Ð
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: A microwave oscillator of linear chirp signals (LCS)
Creators: name: ÐÐ°Ð»Ð°ÑÐ½Ð¸ÐºÐ¾Ð²Ð°, ÐÐ°Ð»ÐµÑ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: 2024
Subjects: Ð¡ÐÐ§
ÐÐ£Ð
Ð³Ð¸Ð±ÑÐ¸Ð´Ð½ÑÐ¹ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
ÐÐ§Ð
Ð¿Ð¸Ð»Ð¾Ð¾Ð±ÑÐ°Ð·Ð½Ð¾Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ
microwave
VCO
hybrid oscillator
LFM
sawtooth voltage

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description: The object of study is a microwave oscillator of linear chirp signals (LCS). The goal of the research process is to develop a microwave LCS oscillator which is manufactured using a hybrid technology and standard electronic components. The terminological features of the subject area are considered, and software tools are used to solve the problems. The specialized software AWR Design Environment is used. This program includes circuit modeling tools (MWO) and electromagnetic analysis tools (AXIEM). The following design systems are also used: Micro-Cap and Altium Designer. The basic structure of a voltage-controlled oscillator (VCO) was determined. This circuit includes two varactors in the emitter and base of the transistor. Also, the type of active and control elements of VCO was selected. A model of hybrid VCO was developed considering the results of electromagnetic analysis of its microstrip topology in AXIEM. A model of a sawtooth voltage generator for forming the VCO control voltage was built in the Micro-Cap. A study of the characteristics of these devices has shown that the difference between the real and calculated values of the VCO frequencies does not exceed 700 MHz and is on average about 400-500 MHz. The difference between the simulation results and measurements of the characteristics of the sawtooth voltage oscillator is less than 2 kHz for the frequency and no more than 0.1 V for its amplitude. It is shown that the LCS oscillator based on these devices provides an operating frequency range from 4.9 GHz to 5.9 GHz. The research results can be used in the development of microwave devices designed to create signals with linear frequency modulation. â