title: ÐÐ¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²ÑÐµ Ð¿Ð¾Ð»Ð¾ÑÐ¾Ð²ÑÐµ ÑÐ¸Ð»ÑÑÑÑ Ñ Ð¿ÐµÑÐµÑÑÑÐ°Ð¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ð¿Ð¾Ð»Ð¾ÑÐ¾Ð¹ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¿ÑÐ°Ð²Ð»ÑÐµÐ¼ÑÑ Ð¿Ð¾Ð´Ð»Ð¾Ð¶ÐµÐº
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: Tunable microstrip bandpass filter based on controlled substrates
Creators: name: ÐÐ¾Ð¿ÑÐ»Ð¾Ð², Ð¯ÐºÐ¾Ð²
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: Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²ÑÐ¹ Ð¿Ð¾Ð»Ð¾ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑ
Ð¿ÐµÑÐµÑÑÑÐ°Ð¸Ð²Ð°ÐµÐ¼ÑÐ¹ ÑÐ¸Ð»ÑÑÑ
Ð¶Ð¸Ð´ÐºÐ¸Ð¹ ÐºÑÐ¸ÑÑÐ°Ð»Ð»
Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ
Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¿ÑÐ¾Ð½Ð¸ÑÐ°ÐµÐ¼Ð¾ÑÑÑ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾ÑÑÑ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ
microstrip bandpass filter
tunable filter
liquid crystal
microstrip line
dielectric permittivity
electric field strenght

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description: Object of study is microstrip filters. The aim is the implementation of the tunable microstrip bandpass filter based on controlled substrates. As a result of the study, various topologies of microstrip filters were studied, and the effects of the design features of such filters were investigated; various mechanisms for tuning the central frequency of the bandwidth were considered: materials and implementation possibilities were analyzed, and a method for implementing such as filter based on a liquid crystal was proposed. The theory of liquid crystal properties which is necessary for further research was analyzed. In the development of the microstrip bandpass filter, a filter with alternating substrates was calculated, the influence of the dielectric properties of the liquid crystal on the frequency characteristics of the filter was studied, a mechanism for tuning by introducing an additional metal plane was proposed, and the influence of electric field strength on the dielectric permittivity of the liquid crystal and the distance between the filter and the metal plane on the frequency characteristics of the filter were investigated. The measurement results were obtained through modeling.