title: ÐÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð½ÑÐµÐ½Ð½ Ð½Ð° Ð¿ÐµÑÐ°ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÐµ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ 868 - 915 ÐÐÑ Ð´Ð»Ñ ÑÐ¸ÑÑÐµÐ¼ Ð¼Ð¾Ð½Ð¸ÑÐ¾ÑÐ¸Ð½Ð³Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Use of PCB antennas in the 868 - 915 MHz range for monitoring systems
Creators: name: ÐÐ°ÑÐ¸Ð»ÐµÐ²ÑÐºÐ°Ñ, ÐÐ»Ð¾Ð½Ð°
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: 2021
Subjects: Ð°Ð½ÑÐµÐ½Ð½Ð° Ð½Ð° Ð¿ÐµÑÐ°ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÐµ
Ð¿Ð¾Ð»Ð¾ÑÐ° Ð¿ÑÐ¾Ð¿ÑÑÐºÐ°Ð½Ð¸Ñ
Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑ
Ð¿Ð¾Ð»Ð¾ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑ
ÑÐµÑÑ ÑÐ¾Ð³Ð»Ð°ÑÐ¾Ð²Ð°Ð½Ð¸Ñ
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ ÑÑÐ¸Ð»ÐµÐ½Ð¸Ñ
Ð´Ð¸Ð°Ð³ÑÐ°Ð¼Ð¼Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾ÑÑÐ¸
PCB antenna
bandwidth
microcontroller
bandpass filter
matching network
gain
directional patterns

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐ»Ð°ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑÐ½Ð¾Ðµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾ Ñ Ð°Ð½ÑÐµÐ½Ð½Ð¾Ð¹ Ð½Ð° Ð¿ÐµÑÐ°ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÐµ, ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐµÐµ Ð°Ð² Ð½ÑÐ¶Ð½Ð¾Ð¼ Ð½Ð°Ð¼ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ ÑÐ°ÑÑÐ¾Ñ. ÐÐµÑÐ²Ð°Ñ Ð³Ð»Ð°Ð²Ð° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐµÐ¼Ðµ Â«ÐÐ½ÑÐµÐ½Ð½Ð°Â». Ð Ð½ÐµÐ¹ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ ÑÐµÐ¾ÑÐ¸Ñ Ð°Ð½ÑÐµÐ½Ð½, Ð¸Ñ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ, Ð¿Ð¾ ÐºÐ¾ÑÐ¾ÑÑÐ¼ Ð¼Ñ ÑÐ´ÐµÐ»Ð°Ð»Ð¸ Ð²ÑÐ±Ð¾Ñ Ð² Ð¿Ð¾Ð»ÑÐ·Ñ ÑÐ¿Ð¸ÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð°Ð½ÑÐµÐ½Ð½Ñ. ÐÐ°Ð»ÑÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð²Ð¸Ð´Ñ ÑÐ¿Ð¸ÑÐ°Ð»ÑÐ½ÑÑ Ð°Ð½ÑÐµÐ½Ð½, ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð¸Ðµ Ð±ÐµÐ³ÑÑÐµÐ¹ Ð²Ð¾Ð»Ð½Ñ ÑÐ¾ ÑÐ»Ð°Ð±Ð¾Ð¹ Ð¸Ð»Ð¸ ÑÑÐµÐ´Ð½ÐµÐ½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸ÐµÐ¹. ÐÐ¾ Ð²ÑÐ¾ÑÐ¾Ð¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°ÑÐ¿Ð¾Ð»Ð°Ð³Ð°ÐµÑÑÑ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ðµ Ð·Ð°Ð´Ð°Ð½Ð¸Ðµ, Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð¹ Ð°Ð½ÑÐµÐ½Ð½Ñ Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ, ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð½ÑÐµ Ð´Ð»Ñ ÐµÑ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ, ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½ ÑÐµÐ·ÑÐ»ÑÑÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð´Ð¸Ð·Ð°Ð¹Ð½Ð° Ð² ÑÑÐµÐ´Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð¸ÐºÐ¸ âEasyEDAâ. Ð Ð°ÑÑÑÐ¸ÑÐ°Ð½Ð° ÑÐµÑÑ ÑÐ¾Ð³Ð»Ð°ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð½ÑÐµÐ½Ð½ Ð½Ð° ÑÐ°ÑÑÐ¾ÑÑ 868ÐÐÑ. Ð ÑÑÐµÑÐµÐ¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°, Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð² ÑÑÐµÐ´Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð¸ÐºÐ¸ âEasyEDAâ. ÐÐ½Ð° ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð¸Ð· ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ÑÐ°ÐºÐ¸Ñ, ÐºÐ°Ðº Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¾Ð² Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ, Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑÐ° STM32WLE5**, ÑÐ¸Ð»ÑÑÑÐ°, Ð°Ð½ÑÐµÐ½Ð½Ñ Ð¸ ÐºÐ²Ð°ÑÑÐµÐ²Ð¾Ð³Ð¾ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ°, ÑÐ°ÐºÑÐ¸ÑÑÑÑÐµÐ³Ð¾ Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑ Ð¸ Ð°Ð½ÑÐµÐ½Ð½Ð°. Ð¢Ð°ÐºÐ¶Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´Ð¸ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÐµÑÐ°ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÑ Ð² 2-Ð´ Ð¸ 3-Ð´ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹. Ð Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐ¸Ñ Ð³Ð»Ð°Ð²Ð°Ñ Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½Ð¾ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÑ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÑÐµÐ¼Ñ (ÐÐ»Ð°Ð²Ð° 4 Ð¸ ÐÐ»Ð°Ð²Ð° 5). Ð ÑÐµÑÑÐ¾Ð¹ Ð³Ð»Ð°Ð²Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð´Ð¸Ð°Ð³ÑÐ°Ð¼Ð¼ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð½Ð°ÑÐµÐ¹ Ð¿ÐµÑÐ°ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°ÑÑ. ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ð»Ð¾ÑÑ Ð½Ð° Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÑ ÑÐ°ÑÑÐ¾ÑÐ°Ñ, ÑÑÐ¾Ð±Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÑ ÑÑÑÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ ÑÐ¾ÑÑÐ°Ð½ÐµÐ½Ð¸Ð¸ ÑÐ¾Ð¹ Ð¶Ðµ ÑÐ¾Ð³Ð»Ð°ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ ÑÐµÑÐ¸, ÑÑÐ¾ Ð¸ Ð½Ð° ÑÐ°ÑÑÐ¾ÑÐµ 868 ÐÐÑ. Ð Ð¿Ð¾ÑÐ»ÐµÐ´Ð½ÐµÐ¹ Ð³Ð»Ð°Ð²Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°Ð±Ð¾ÑÑ: ÑÐ°Ð·Ð¼ÐµÑ Ð¿Ð»Ð°ÑÑ, ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ ÑÑÐ¸Ð»ÐµÐ½Ð¸Ñ Ð°Ð½ÑÐµÐ½Ð½Ñ, Ð²ÑÐ¾Ð´Ð½Ð¾Ðµ Ð¸ Ð²ÑÑÐ¾Ð´Ð½Ð¾Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ Ð¸ ÑÐ¸Ð»Ð° Ð²ÑÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐ¾ÐºÐ°.
description: The purpose of this graduate work was the development of a microcontroller device with an antenna on a printed circuit board, operating in the frequency range we need. The first chapter is devoted to the topic "Antenna". It examines the theory of antennas, their classification, according to which we made a choice in favor of a spiral antenna. Further, we consider the types of spiral antennas, propagation of a traveling wave with weak or mid-directional polarization. The second chapter contains the terms of reference, the rationale for the selected antenna and the parameters calculated for its construction, the result of design modeling in the âEasyEDAâ computer-aided design environment is also given. Antenna matching network for a frequency of 868 MHz has been calculated. In the third chapter, a schematic diagram of a device built in the âEasyEDAâ computer-aided design of electronics is considered. It consists of elements such as power supplies, an STM32WLE5 ** microcontroller, a filter, an antenna and a crystal oscillator that clocks the microcontroller and antenna. Also provide the results of the PCB simulation in 2-d and 3-d models. The following chapters explore the elements of the circuit diagram in more detail (Chapter 4 and Chapter 5). The seventh chapter shows the results of the radiation patterns of our PCB. Simulations were run at cutoff frequencies to show performance degradation while maintaining the same network matched as at 868 MHz. The final chapter summarizes the results of the work: board size, antenna gain, input and output voltages, and output current.