In electronics, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for a desired value. Often, the desired value is selected to maximize power transfer or minimize signal reflection. For example, impedance matching typically is used to improve power transfer from a radio transmitter via the interconnecting transmission line to the antenna. Signals on a transmission line will be transmitted without reflections if the transmission line is terminated with a matching impedance. Techniques of impedance matching include transformers, adjustable networks of lumped resistance, capacitance and inductance, or properly proportioned transmission lines. Practical impedance-matching devices will generally provide best results over a specified frequency band. The concept of impedance matching is widespread in electrical engineering, but is relevant in other applications in which a form of energy, not necessarily electrical, is transferred between a source and a load, such as in acoustics or optics. (Wikipedia).
Pattern Matching - Correctness
Learn how to use pattern matching to assist you in your determination of correctness. This video contains two examples, one with feedback and one without. https://teacher.desmos.com/activitybuilder/custom/6066725595e2513dc3958333
From playlist Pattern Matching with Computation Layer
Proving Parallel Lines with Angle Relationships
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two arrow heads or two small lines indicated i
From playlist Parallel Lines and a Transversal
What are parallel lines and a transversal
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two arrow heads or two small lines indicated i
From playlist Parallel Lines and a Transversal
What are the Angle Relationships for Parallel Lines and a Transversal
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two arrow heads or two small lines indicated i
From playlist Parallel Lines and a Transversal
What is the Corresponding Angle Converse Theorem
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two arrow heads or two small lines indicated i
From playlist Parallel Lines and a Transversal
What is the Alternate Exterior Angle Converse Theorem
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two arrow heads or two small lines indicated i
From playlist Parallel Lines and a Transversal
Geometry - Identifying Corresponding Angles from a Figure
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior. All the angle formed by a transversal with two paral
From playlist Parallel Lines and a Transversal
Learn to Find Corresponding Angles From a Figure
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior. All the angle formed by a transversal with two paral
From playlist Parallel Lines and a Transversal
Sometimes you need to nest a pattern in another pattern. Learn how to build these patterns and then extract information from them. https://teacher.desmos.com/activitybuilder/custom/605e21d90925ca0c93fabbbd
From playlist Pattern Matching with Computation Layer
PHYS 201 | Wave Interface 8 - DEMO: Impedance Matching
Here are some ways to make sure you get no reflection, or to "impedance match". -----Traveling Waves Playlist - https://www.youtube.com/playlist?list=PL9_sR6QqqcynLNxj57eNgJ7eWKz0Y0Ad3 -----Use the channel, or take the courses at edX - https://www.edx.org/course?search_query=hafner+ricex -
From playlist PHYS 201 | Traveling Waves
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)
For more from the AT&T Archives, visit http://techchannel.att.com/archives On an elementary conceptual level, this film reflects the multifaceted scientific hyperthinking that was typical of a Bell Labs approach. Host Dr. J.N. Shive's presence as a lecturer is excellent - it's understan
From playlist Bell Labs Wave Machine
But how exactly do the voltage and current propagate through transmission lines?
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From playlist Transmission Lines
Understanding Electromagnetic Radiation! | ICT #5
In the modern world, we humans are completely surrounded by electromagnetic radiation. Have you ever thought of the physics behind these travelling electromagnetic waves? Let's explore the physics behind the radiation in this video. Be a Learn Engineering supporter or contributor : https:
From playlist Internet & Telecommunication Technology
Recitation 9 - The Phenomenon of Wave Propagation
Continuum Limit and "The" Wave Equation; Plane Wave Solutions and Examples; Reflection, Transmission and Impedance. Impedance Matching and the Conical Shape of Megaphones Recitation 9 of Caltech's Ph2a Course on Vibrations and Waves by Prof. Frank Porter and Dr. Ashmeet Singh. View course
From playlist Ph2a: Vibrations and Waves
EEVblog #616 - How Microphone Phantom Powering Works
Doug Ford, former head designer at Rode Microphones explains 48V phantom powering of microphones and how it works. There is a ton of stuff here: Electrostatic and electromagnetic noise, differential amplifiers, common mode noise, transformer magnetisation current, JFET differential driver
From playlist Microphone Technology & Design
EEVblog #1367 - 5 Types of Oscilloscope Passive Probes COMPARED
Dave looks at the pros and cons of 5 different types of oscilloscope passive probes. Switchable x1/x10, Fixed x10, High voltage single ended, DIY Transmission line Z0 probe, and BNC to banana/croc leads. PART 1 of 2 200MHz 100M 100:1 HV probe: https://amzn.to/3onPj9w Cheap 100:1 HV probe:
From playlist Oscilloscope Tutorials
Electrical Engineering: Ch 12 AC Power (16 of 38) How to Find Maximum Power Transferred?
Visit http://ilectureonline.com for more math and science lectures! In this video I will show how to match the impedance of the load to the impedance of the circuit in such a way that the maximum power can be transferred from the circuit to the load. Next video in this series can be seen
From playlist THE "HOW IS" PLAYLIST
Black Hat USA 2010: Extreme-Range RFID tracking 2/4
Speaker: Chris Paget If you think that RFID tags can only be read a few inches away from a reader you haven't met EPC Gen2, the tag that can be found in Enhanced Drivers Licenses - this 900MHz tag is readable from 30 feet with off-the-shelf equipment. Without amplifying the signal from a
From playlist BH USA 2010 - NETWORK
Learning to Identify Corresponding Angles
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior. All the angle formed by a transversal with two paral
From playlist Parallel Lines and a Transversal
Lecture 8 (CEM) -- Perfectly Matched Layer
This lecture introduces the student to the uniaxial perfectly matched layer (UPML). It begins with some background and them steps the student through the formulation and implementation of a UPML for frequency-domain models. It ends with a brief introduction to the stretched coordinate PM
From playlist UT El Paso: CEM Lectures | CosmoLearning.org Electrical Engineering