RF Circuits and Systems - RF Transmitter Architectures
Last updated 12/2022
Created by Professor Payam Heydari
MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch
Level: All Levels | Genre: eLearning | Language: English + subtitle | Duration: 6 Lectures ( 1h 13m ) | Size: 602 MB
Course 4
What you'll learn
⚡ This course will provide an in depth teaching of radio-frequency TRANSMITTER architectures.
⚡ The course covers fundamentals of radio-frequency transmitters and dominant issues including I/Q mismatch, transmitter linearity and LO pulling
⚡ The course offers practical and insightful information about RF transmitters
⚡ The case studies include WiFi and cellular transmitters
Requirements
❗ The prerequist for this course is the previous Udemy courses offered by Prof. Payam Heydari on basic concepts in RF design and fundamentals of communication theory.
Description
A radio-frequency transceiver comprising a receiver and a transmitter is the main system responsible for establishing communication between users of the communication system. This lecture focuses on the study and design of radio-frequency transmitters. The course starts with an overview of an RF transmitter and important design challenges in designing these systems. The course then will provide an in-depth study of wireless transmitters. Starting with the problem of in-phase/quadrature (I/Q) mismatch and its impact on the transmitter performance, the course teaches a technique based on the detection of the signal mirror to calibrate the mismatch. The course then will go over another problem commonly seen in RF transmitters, which the carrier leakage. The students will learn that carrier leakage will disturb the signal constellation. Next, the important issue of the power amplifier and transmitter linearity will be studied. The students will learn the reason for the power-amplifier back-off to avoid EVM degradation. Next, the problem of local-oscillator pulling will be studied. Methods of combating the oscillator pulling in an RF transmitter. An overview of alternative transmitter structures including the direct conversion transmitter with LO working at twice the RF frequency, heterodyne, dual upconversion, and sliding IF transmitters will be introduced.
Who this course is for
⭐ This course is (1) intended for aspiring design engineers who are seeking a career in RF design; (2) graduate students; and (3) senior-level undergraduate students.
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