RF Concepts, Components and Circuits For Beginners from Udemy

Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field in the frequency range from around 20 kHz to around 300 GHz.

Radio frequency engineering, or RF engineering, is the study and application of radio waves with the purpose of creating technology and devices that can both receive and send signals using these waves. RF engineering is an important component for those working in aeronautics, telecommunications, military services, commercial radio, television and space-related professions. People use radio waves to communicate on their cell phones, and RF engineers design and implementing the technology that supports 4G and 5G networks.

This is a beginner course in RF engineering that addresses important concepts, components and circuits used in the RF engineering. This course will serve as a basis to move ahead and build upon more advanced concepts in RF engineering and designs.

This course is divided into following sections:

Section 1: Introduction to RF systems

Section 2: Bigger Picture: Transmitter/Receiver Block Diagram

Section 3: Important Analog And Digital Modulation Schemes

Section 4: Revision Of Some Basic Electronics' concepts

Section 5: RF Oscillators

Section 6: Mixer and its Applications

Section 7: RF Filters

Section 8: Power Amplifiers

Section 9: Antennas

Section 10: Impedance Matching, Reflected Power & VSWR

Section 11: S (Scattering)-Parameter

Section 12: Smith Chart And Impedance Matching

Section 13: Low Noise Amplifier (LNA)

Section 14: RF Attenuators and their Types

Section 15: Introduction to Software Defined Radios (SDRs)

What's inside

Learning objectives

Radio frequency basics
Rf principles and concepts
Rf components
Rf circuits
Rf modulation and demodulation techniques

Mixers, oscillators, rf amplifier, antennas,
Rf filters, impedance matching, vswr
Low noise amplifier
S-parameters, smith chart, rf attenuators

Radio frequency basics
Rf principles and concepts
Rf components
Rf circuits
Rf modulation and demodulation techniques
Mixers, oscillators, rf amplifier, antennas,
Rf filters, impedance matching, vswr
Low noise amplifier
S-parameters, smith chart, rf attenuators

Syllabus

Introduction

What is Frequency and Wavelength?

RF Signals Frequency Range

Modulation/Demodulation: Fundamental requirement for RF communication

What is Modulation?

Why we use modulation? What are its Advantages?

What are Modulation Types?-Analog Modulation

Bigger Picture-Block Diagrams of Amplitude Modulated RF Transmitter & Receiver

Amplitude Modulation (AM)

Demodulation of Amplitude Modulated (AM) Signal

RF Transmitter Block Diagram

RF Receiver Block Diagram

Important Analog And Digital Modulation Schemes

Quadrature Amplitude Modulation (QAM)-Analog

Types of Digital Modulation Schemes

Amplitude Shift Keying (ASK)

Amplitude Shift Keying, 4-ASK Digital Modulation

4-ASK Demodulation

Binary Frequency Shift Keying (BFSK)

Binary FSK Demodulation

Binary Phase Shift Keying (BPSK) Modulation

M-Phase Shift Keying (M-PSK)

Quadrature Phase Shift Keying (QPSK) Modulation

Quadrature Phase Shift Keying (QPSK) Demodulation

M-Quadrature Amplitude Modulation (M-QAM)

16-Quadrature Amplitude Modulation (16-QAM)

16-QAM Demodulation

RF Transmitter And Receiver Module

Revision Of Some Basic Electronics' concepts

Active Components: Current Controlled Devices

Active Components: Voltage Controlled Devices

Passive Components

Capacitive Reactance

Inductive Reactance

Impedance

Series Resonance in R-L-C Circuit

Parallel Resonance in R-L-C Circuit

Oscillators

Function Of An Oscillator

Types Of Oscillators: 1) Linear (Harmonic) 2) Relaxation

Linear (Harmonic) Oscillators and their Types

Feedback Oscillators

Types of Feedback Oscillators

RC Phase Shift Oscillators

LC Tank Circuits for LC Oscillators

LC Oscillators: Hartley Oscillator

LC Oscillators: Colpitts Oscillator

Crystal Oscillators

Piezoelectric Effect

Electrical Equivalent of Quartz Crystal

Crystal Oscillator Circuits

Negative Resistance Oscillators

Voltage Controlled Oscillators

Problem of Phase Noise in Oscillators

Mixer and its Applications

Mixer Operation

Mixer Application: Modulation\Demodulation

Mixer Application: Superhetrodyne Receiver

Radio Frequency (RF) Filters

RF Filters

RF Filters Classes and Types

Decibel Milli Watt (dBm) to measure power in RF systems

Decibel (dB) to Measure Amplification And Attenuation

3 dB Bandwidth of a Filter

Passive Filters: LC Lowpass Filter

Passive Filters: LC Highpass Filter

Q-Factor of a Filter

Passive Filters: LC Bandpass Filter

Passive Filters: LC Bandstop Filter

Active Filters: Lowpass Filter

Order of a Filter

Power Amplifers

Power Amplifer

Class A Amplifiers

Why Linear Amplification is Required?

Class B (Push-pull) Power Amplifiers

Class AB Power Amplifiers

Class C Amplifiers

Additional Classes D,E, F etc

Linearity Parameter of an Amplifier: 1 dB Compression Point

Power Amplifier Backoff Operation

Intermodulation (IM) Products due to Non-linearity

Linearity Parameter of an Amplifier: Third Order Intercept

Antennas

What is Antenna and its Polarization?

Important Antenna Parameters

Antenna Gain: Isotropic Antenna Power Gain

Dipole Antenna

Dipole Antenna Radiation Pattern And Beamwidth

Monopole (Marconi) Antenna

Loop Antenna

Traveling Wave Type Antennas: Yagi Antenna, Helical Antenna

Log-Periodic Antenna

Micro strip or Patch Antenna

Horn Antenna

Circular Parabolic Reflector Antenna

Array Antennas

Impedance Matching, Reflected Power & VSWR

What is Impedance Matching?

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops RF Basics, RF Principles and Concepts, RF Components, RF Circuits, RF Modulation and Demodulation Techniques, Mixers, Oscillators, RF amplifier, Antennas, RF Filters, Impedance Matching, VSWR, Low Noise Amplifier, S-parameters, Smith Chart, RF Attenuators, which are core skills for RF engineering

Taught by Dr. Moazzam Tiwana, who are recognized as an expert in RF engineering

Examines RF engineering, which is highly relevant field in aeronautics, telecommunications, military services, commercial radio, television and space-related professions

Explores the fundamentals of RF engineering, which are standard in industry

Builds a strong foundation for beginners by addressing important concepts, components and circuits used in the RF engineering

Requires prerequisite knowledge of some basic electronics concepts

Career center

Learners who complete RF Concepts, Components and Circuits For Beginners will develop knowledge and skills that may be useful to these careers:

RF Design Engineer

An RF design engineer designs and develops radio frequency systems and components such as antennas, amplifiers, and filters. This course covers fundamentals of RF concepts, components, and circuits, which will provide a useful foundation for an RF design engineer.

See salaries and explore the career path for RF Design Engineer

Software Defined Radio Engineer

A software defined radio engineer designs and develops software-defined radios, which are radios that can be programmed to operate on different frequencies and protocols. This course on RF concepts, components, and circuits would be helpful for a software defined radio engineer who needs to understand the underlying RF principles of software-defined radios.

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RF Technician

An RF technician installs, maintains, and repairs RF equipment. This course on RF concepts, components, and circuits would be helpful for an RF technician who needs to understand the underlying principles of RF equipment.

See salaries and explore the career path for RF Technician

Wireless Network Engineer

A wireless network engineer designs, deploys, and maintains wireless networks. This course on RF concepts, components, and circuits would be helpful for a wireless network engineer who needs to understand the RF principles of wireless networks.

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Antenna Engineer

Antenna engineers design and develop antennas and antenna arrays used in a wide range of applications, including telecommunications and aerospace. Antennas is one of the topics covered in this course, making it useful to those who want to pursue a career in antenna engineering.

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Radio Operator

A radio operator operates and maintains radio equipment used for communication, navigation, and other purposes. This course on RF concepts, components, and circuits would be helpful for a radio operator who needs to understand the underlying principles of RF systems.

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Hardware Engineer

A hardware engineer designs, builds, and maintains computer hardware, including RF devices. This course provides foundational concepts in radio frequency that could help a hardware engineer better understand RF devices and how to design hardware that uses them.

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Electrical Engineer

An electrical engineer designs, develops, and tests electrical systems and components. This course on RF concepts, components, and circuits would be helpful for an electrical engineer who needs to understand the RF principles of electrical systems and components.

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Telecommunications Engineer

A telecommunications engineer designs, develops, and maintains telecommunications networks. This course on RF concepts, components, and circuits would be helpful for a telecommunications engineer who needs to understand the RF principles of telecommunications networks.

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Electronic Engineer

An electronic engineer designs, develops, and tests electronic circuits and systems. This course on RF concepts, components, and circuits would be helpful for an electronic engineer who needs to understand the RF principles of electronic circuits and systems.

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Test Engineer

A test engineer develops and executes tests to verify the functionality and performance of electronic devices and systems. This course on RF concepts, components, and circuits would be helpful for a test engineer who needs to test RF devices or systems.

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Systems Engineer

A systems engineer designs, develops, and integrates complex systems, including RF systems. This course on RF concepts, components, and circuits could help a systems engineer better understand RF systems and how to integrate them into larger systems.

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Field Service Engineer

A field service engineer provides technical support and repairs to electronic equipment in the field. This course on RF concepts, components, and circuits would be helpful for a field service engineer who needs to troubleshoot and repair RF devices or systems.

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Applications Engineer

An applications engineer works with customers to design and implement solutions using the company's products or services. This course on RF concepts, components, and circuits can help an applications engineer better understand RF systems and how to apply them in real-world applications.

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Researcher

A researcher conducts scientific research in a variety of fields, including RF engineering. This course on RF concepts, components, and circuits would be helpful for a researcher who needs to understand the basics of RF engineering.

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