Радио дизайн и технологии. RF Design

Радио дизайн и технологии. РЧ оборудование, его разработка, тестирование. схемотехника. RF Design

Основы

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Основные параметры РЧ компонентов

= Показатели качества РЧ компонентов;
=
Виды тестирования и их сложность;
= Простые виды РЧ параметров;
= Малосигнальные параметры и характеристики РЧ компонентов;
= Частотные характеристики устройства;

Частотные и спектральные характеристики радиооборудования;
= Переходная характеристика. Динамический анализ цепей;
= Тестирование РЧ компонентов с помощью сложных сигналов;
= Нелинейные явления в РЧ устройствах;
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Точка компрессии (1 dB compression point);
= Блокирование (Blocking);
= Точка пересечения второго порядка (Second-order Intercept Point);
= Интермодуляция;
= Двухтоновое испытание устройств;
= Точки пересечения для двухтонового испытательного сигнала;
= Динамический диапазон (Dynamic Range);
= Использование при тестировании модулированных сигналов;
= Подрост спектра SR;
= Коэффициент мощности в соседнем канале ACPR и ACLR;
= Коэффициент мощности шума NPR;

Радиодизайн. Определение


Не претендуя на всеобьемлемость и академичность определения, предлагаю следующее определение термина «Радиодизайн»:

Радиодизайн или РЧ дизайн (RF design)


Радиодизайн или РЧ дизайн (RF design) – это творческий метод, процесс и результат технического проектирования радиооборудования, его комплексов и систем, ориентированных на достижение наиболее полного соответствия создаваемых объектов потребностям и возможностям пользователя, как утилитарным, так и эстетическим.


Проектирование (разработка) радиооборудования (тракты приема, передачи, синтеза) для систем связи – это сложный процесс, требующий от специалиста знаний во многих смежных разделах областях:


РЧ стандарты;
Теория связи;
Теория модуляции;
Архитектура РЧ;
РЧ схемотехника;
РЧ/цифровые ИС (схемотехника, номенклатура);
РЧ дискретные элементы;
Потребности рынка


Интернет-издание по радиодизайну «Сигнал-Signal»


«Сигнал-Signal»интернет-издание по радиодизайну (Radio Frequency Design) в его широком понимании.


Информационные выпуски «Сигнал-Signal» в формате PDF:


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Шумы (Noise). Интернет-ресурсы

Подборка Интернет-источников по Шумам (Noise) в системах и устройствах



Русскоязычные

Англоязычные


Antenna and Receiver Noise noise power, Boltzmann’s constant, background noise temperature, Sky Noise, Antenna Noise Temperature, background noise, Atmospheric noise, pdf file

Bibliography on 1/f Noise 1/f noise («one-over-f noise», occasionally called «flicker noise» or «pink noise») is a type of noise whose power spectra P(f) as a function of the frequency f behaves like: P(f) = 1/fa

Bruit dans les quadripôles en Français

Bruit thermique en Français

Cascaded Noise Figures Cascaded Noise Figures, pdf file

CCD Signal-To-Noise Ratio

Colors of Noise White noise, Pink noise, Red noise, Orange noise, Green noise, Blue noise, Purple noise, Grey noise, Brown noise, Black noise

Common Mode Noise the results of research regarding common mode noise induced on cables of varying lengths in different environments. It also provides information on noise sources, pdf file

Common Mode Noise pdf file

Common mode noise attenuation reduction Common Mode Noise Attenuation using an Ultra Isolation Transformer

Common Mode Noise in DC/DC Converters pdf file

Contact bounce and de-bouncing contact bounce and de-bouncing, push-button switches, toggle switches, and electro-mechanical relays all have one thing in common: contacts. It’s the metal contacts that make and break the circuit and carry the current in switches and relays

Contact bounce and de-bouncing pdf file

Contact-debouncing algorithm emulates Schmitt trigger pdf file

Debouncing

Decoupling decoupling capacitors, noise suppression, using decoupling capacitors

Differential and Common Mode Noise Differential and Common Mode Noise

Differential and Common Mode Noise pdf file

Electrical Noise Johnson-Nyquist noise (sometimes thermal noise, Johnson noise or Nyquist noise), Thermal Noise, Shot Noise, random fluctuations of the electric current, Pink noise -flicker noise, White Noise, Cosmic (galactic) noise, pdf file

Electronic noise man made noise: noise from sources external to the circuit. This can include florescent lighting, computer monitors, television, cellular phones, and similar devices. Interference noise, pdf file

Electronic noise Johnson. noise, broad band noise, man made noise, pdf file

Glossary of Noise Terms To describe sound in a manner representative of the human ear’s response it is necessary to reduce the effects of the low and high frequencies with respect to the medium frequencies. The resultant sound level is said to be A-weighted, and the units are called dB

Field Effect Transistors and Noise pdf file

HF ambient noise floor pdf file

Johnson Noise and Shot Noise Johnson Noise and Shot Noise: The Determination of the Boltzmann Constant, Absolute Zero Temperature and the Charge of the Electron, pdf file

Johnson Noise and Shot Noise Johnson Noise and Shot Noise, man made noise

Le bruit en Français, a tip

Man-made noise Feasibility study into the measurement of man-made noise, pdf file

Noise pdf file

Noise Natural noise, Atmospheric noise, man-made noise, artificial noise, electronic components, Thermal (Johnson) noise, Shot noise, white noise, pink noise, SNR, signal-to-noise ratio

Noise Electrical noise may be said to be the introduction of any unwanted energy, which tend to interfere with the proper reception and reproduction of transmitted signals, ppt file

Noise Objects capable of allowing the flow of electrical current will exhibit noise. This occurs as some electrons will have a random motion, causing fluctuating voltage and currents. As noise is random it can only be predicted by statistical means, …, pdf file

Noise Analysis — Resistor Example Noise Analysis, Power Spectral Density, circuit noise

NOISE and DISTORTION Thermal Noise, Shot Noise, Noise Sources, Noise in Semiconductor Devices, Single Signal Distortions, pdf file

Noise and Interference Electromagnetic Interference (EMI), Common-Mode vs Differential-Mode, Current Coupling Paths, Measurement of CM Current, Reducing CM-Currents, Measurement of Magnetic Field, pdf file

Noise Figure and Equivalent Input Noise Signal and noise propagation through an electronic device, Input and output S/N ratios, Noise figure of a device, Equivalent input current noise density

Noise in Analog Circuits White noise, Environmental noise, pink noise

Noise Measurements 1/f measurement setup for bipolar and MOS transistors, pdf file

Noise Sources pdf file

Random electrical noise: a literature survey thermal or Johnson noise results from the Brownian motion of ionized molecules within a resistance. Thermal noise is entirely fundamental and cannot be eliminated (although the effect can be reduced by reducing or cooling the resistance)

Resistor Noise Nyquist Noise, Johnson Noise or thermal Noise. Resistor noise is caused in any ohmic resistor by thermal motion of electrons

Ripple and Noise pdf file

Ruis hagelruis, ruistemperatuur, Johnson ruis, in Dutch, pdf file

Signals and Noise Frequency domain. Bandwidth, Noise, Shot or Schottky noise, Johnson or Nyquist noise, 1/f noise, Electromagnetic Compatibility. Grounding and Shielding, pdf file

Signals and noise signal and noise, pdf file

Signal to noise ratio on a picture monitor SNR

Signal to noise ratio Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering to quantify how much a signal has been corrupted by noise. It is defined as the ratio of signal power to the noise power corrupting the signal

snr — signal-to-noise-ratio pdf file

SwitchDebounce Switch Debounce Circuits

Switch Bounce and Other Dirty Little Secrets pdf file

Thermal Johnson Noise Generated by a Resistor Thermal Johnson Noise Generated by a Resistor, pdf file

Thermal noise P = 4kBTΔf, Thermal noise, Boltzmann constant = 1,3806505×10-23 J/K (joule/kelvin), V = SQRT(4kTBR), pdf file

UNDERSTANDING COMMON MODE NOISE the difference between common-mode and differential mode signals, EMC, EMI, pdf file

Understanding Noise in Measurement Understanding Noise in Measurement, Internal Noise Sources, Parameter Noise, Thermal Noise, Thermal Noise, Input Noise, Dielectric Absorption, Electric Field Coupling, Common Mode Rejection Noise, Cable Noise

White Noise in MOS Transistors and Resistors pdf file

White noise spectrum White noise spectrum