• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Unit 5 PowerPoint Slides
Unit 5 PowerPoint Slides

EECS 498 Advanced Embedded Systems
EECS 498 Advanced Embedded Systems

... – That is we don’t want to see any signal on the Vcc/Ground lines. – The obvious thing? • “Add a capacitor” – That should keep the voltage constant, right? ...
lecture10aa
lecture10aa

Definitions for Thévenin`s Theorem
Definitions for Thévenin`s Theorem

2013
2013

... (Electrical and Electronics Engineering) Time: 3 Hours Max Marks: 75 Answer any FIVE Questions All Questions carry equal marks ...
MSAU400 - Minmax Technology Co., Ltd.
MSAU400 - Minmax Technology Co., Ltd.

Ch14
Ch14

$doc.title

Parallel Gain Stages..
Parallel Gain Stages..

network theorems module
network theorems module

Voltage Reduction Study
Voltage Reduction Study

type 874-lba/-lbb slotted lines
type 874-lba/-lbb slotted lines

... ( 6), (Zx = c0), while the current wave will also be completely reflected but will undergo a 180' phase shift on reflection, as shown in Figure 4. If the line is short-circuited, the current and voltage roles are interchanged, and the impedance pattern is shifted ?-./4 along the line. The phase shif ...
Model NV-872
Model NV-872

... Employing NVT’s latest generation DigitalEQ technology, the NV-872 is an 8-channel active (amplified) hub that allows the transmission of real-time monochrome or colour video for distances up to 1,6km (1 mile) using Category 5 or better unshielded twisted-pair (UTP) cable. The receiver hub continuou ...
Lab 4.6.1 - Learn
Lab 4.6.1 - Learn

Measuring Loudspeaker Driver Parameters
Measuring Loudspeaker Driver Parameters

DC to DC Isolated Converter
DC to DC Isolated Converter

... Notes: 1 . All specifications are over the full operating temperature range (0°C to 60°C) unless stated otherwise. 2. “Channel” means Output Voltage. For example: +5V is one channel and -10V is another. 3. All output voltage channels are independent of each other. Changing loading on one will have ...
AD827
AD827

Document
Document

EC: Electronics and Communication Engg.
EC: Electronics and Communication Engg.

... voltage source Vin (whose output is being converted to digital format) has a source resistance of 75 Ω as shown in the circuit diagram below and the input capacitance of each comparator is 8 pF. The input must settle to an accuracy of 1/2 LSB even for a full scale input change for proper conversion. ...
assignment-3 - WordPress.com
assignment-3 - WordPress.com

... DC resistance/phase : 3.75Ω Find the approximate per phase equivalent circuit parameters referred to stator side at 5% slip. Assume delta connected stator winding. 4. A 3-Φ 50Hz 36 kW 4 pole induction motor has a full load efficiency of 82%. The friction and windage losses are one-fourth of no load ...
HALF AND FULL WAVE RECTIFIERS
HALF AND FULL WAVE RECTIFIERS

... A device is capable of converting a sinusoidal input waveform into a unidirectional waveform with non-zero average component is called a rectifier. Half-Wave Rectifier Since diodes restrict the flow of current to one direction, they can be used to convert an AC power supply, which switches polarity ...
The Dipole
The Dipole

Lecture 07 Load Power and Internal Resistance
Lecture 07 Load Power and Internal Resistance

... through the load being limited only by the internal resistance RS. However, with RL → 0 no voltage is developed across it and so no power is delivered to the load. As the load resistance, RL, is increased the current flowing through it, IL, decreases while the voltage across it, VL, increases. The m ...
Mini Tutorial MT-212
Mini Tutorial MT-212

... capacitor and the input resistor R1. With bipolar supplies the circuit response is to dc. Alternatively, if the preceding circuit is referenced to the same reference voltage the input may be dc coupled. Care should be taken if gain is taken in the circuit. The frequency response requirements on the ...
High Pass Filter
High Pass Filter

< 1 ... 55 56 57 58 59 60 61 62 63 ... 93 >

Standing wave ratio



In radio engineering and telecommunications, standing wave ratio (SWR) is a measure of impedance matching of loads to the characteristic impedance of a transmission line or waveguide. Impedance mismatches result in standing waves along the transmission line, and SWR is defined as the ratio of the partial standing wave's amplitude at an antinode (maximum) to the amplitude at a node (minimum) along the line.The SWR is usually thought of in terms of the maximum and minimum AC voltages along the transmission line, thus called the voltage standing wave ratio or VSWR (sometimes pronounced ""viswar""). For example, the VSWR value 1.2:1 denotes an AC voltage due to standing waves along the transmission line reaching a peak value 1.2 times that of the minimum AC voltage along that line. The SWR can as well be defined as the ratio of the maximum amplitude to minimum amplitude of the transmission line's currents, electric field strength, or the magnetic field strength. Neglecting transmission line loss, these ratios are identical.The power standing wave ratio (PSWR) is defined as the square of the VSWR, however this terminology has no physical relation to actual powers involved in transmission.The SWR can be measured with an instrument called an SWR meter. Since SWR is defined relative to the transmission line's characteristic impedance, the SWR meter must be constructed for that impedance; in practice most transmission lines used in these applications are coaxial cables with an impedance of either 50 or 75 ohms. Checking the SWR is a standard procedure in a radio station, for instance, to verify impedance matching of the antenna to the transmission line (and transmitter). Unlike connecting an impedance analyzer (or ""impedance bridge"") directly to the antenna (or other load), the SWR does not measure the actual impedance of the load, but quantifies the magnitude of the impedance mismatch just performing a measurement on the transmitter side of the transmission line.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report