• Study Resource
  • Explore Categories
    • 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
Dipoles For Dummies Part 3 -- Advanced
Dipoles For Dummies Part 3 -- Advanced

... A plastic enclosure should include a metal reference plane. ...
Remote Lawn Mower
Remote Lawn Mower

MAX2645EVKIT.pdf
MAX2645EVKIT.pdf

... The MAX2645 is a versatile, high-performance, lownoise amplifier with adjustable IP3. These features allow the MAX2645 to be used in a variety of applications, from a low-noise amplifier to a PA predriver. As assembled, the MAX2645 EV kit is configured for lowest noise figure performance (NF = 2.3dB ...
Shure SM81 | PDF
Shure SM81 | PDF

10983 - DA-4x4a Manual.pmd
10983 - DA-4x4a Manual.pmd

Model NV-1672
Model NV-1672

A Novel Continuous-Time Common
A Novel Continuous-Time Common

... forward bias bulk-source junction and increase the bulk current. Increase in bulk current can decrease the overall gain by loading the output impedance. To overcome this problem, the scheme shown in Figure 2-b can be used. SPICE simulation is done for both PMOS and NMOS devices to find the best choi ...
pub3241bvariablefrequencydrives
pub3241bvariablefrequencydrives

... rectifying stage, the rectifier converts three-phase (or single-phase) 60 hertz power from the given utility supply to direct current voltage (standard industrial motors are 208, 230, 380, 415, 460 and 575 volts). Voltage, and thus motor speed, is varied by altering the firing pattern of electronic ...
A.900 / A.1800 / A.2800 HEAVY DUTY PROFESSIONAL
A.900 / A.1800 / A.2800 HEAVY DUTY PROFESSIONAL

Requirements for Integrated Services Digital Network Terminal
Requirements for Integrated Services Digital Network Terminal

Termination and Biasing of HOTLink IITM High
Termination and Biasing of HOTLink IITM High

... components that are common to both lines. This ability is referred to as common-mode rejection. Since a differential receiver is only sensitive to the difference between its two inputs, and most of the noise that is picked up by the signal lines is common to both, the receiver becomes immune to most ...
Signal Conditioning Fundamentals for PC-Based Data Acquisition Systems Application Note 048 Introduction
Signal Conditioning Fundamentals for PC-Based Data Acquisition Systems Application Note 048 Introduction

... Unwanted noise can play havoc with the measurement accuracy of a PC-based DAQ system. The effects of system noise on your measurements can be extreme if you are not careful. Signal conditioning circuitry with amplification, which applies gain outside of the PC chassis and near the signal source, can ...
Agilent HFBR-772B/BE and HFBR- 782B/BE Pluggable Parallel Fiber Optic
Agilent HFBR-772B/BE and HFBR- 782B/BE Pluggable Parallel Fiber Optic

... Technologies’ jitter and sensitivity specifications include cross talk penalties and thus represent real, achievable module performance. Functional Description, Transmitter Section The transmitter section, Figure 1, uses a 12-channel 850 nm VCSEL array as the optical source and a diffractive optical ...
pub3241bvariablefrequencydrives
pub3241bvariablefrequencydrives

... rectifying stage, the rectifier converts three-phase (or single-phase) 60 hertz power from the given utility supply to direct current voltage (standard industrial motors are 208, 230, 380, 415, 460 and 575 volts). Voltage, and thus motor speed, is varied by altering the firing pattern of electronic ...
Radio Receivers, from crystal set to stereo
Radio Receivers, from crystal set to stereo

... differs from the one that acts upon the microphone membrane. The block - diagram on Pic.2.1 (excluding the HF signal shape) is also applicable in case of radio transmission being carried out by frequency modulation. In that case frequency modulation is being carried out in the transmitter, under the ...
VARIABLE CAPACITOR BASICS - IDC
VARIABLE CAPACITOR BASICS - IDC

OPA843 Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER DESCRIPTION
OPA843 Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER DESCRIPTION

... The OPA843’s combination of speed and dynamic range is useful in a wide variety of application circuits, as long as simple guidelines common to all high-speed amplifiers are observed. For example, good power-supply decoupling, as shown in Figure 1, is essential to achieve the lowest possible harmoni ...
PE83501 - Peregrine Semiconductor
PE83501 - Peregrine Semiconductor

... that the predominate mode for these transmission lines is coplanar waveguide. J2 provides DC power to the device. Starting from the lower left pin, the second pin to the right (J2-3) is connected to the device VDD pin (1). Two decoupling capacitors (10 pF, 1000 pF) are included on this trace. ...
An Ultra Low Power DLL Design
An Ultra Low Power DLL Design

...  Main frequency 100 MHz  P2p jitter <5% of clock period  Power <50 uW ...
Voltage Harmonics Measuring Issues in Medium Voltage
Voltage Harmonics Measuring Issues in Medium Voltage

... Mohamed at al., 2008). Consequences of parasitic capacitances are especially significant for multilayer windings with high number of turns which is characteristic for high voltage and low power transformers like VT. The most essential categories of partial parasitic capacitances occurring in typical ...
ELEC 195 - Circuits Theory II - MyWeb at WIT
ELEC 195 - Circuits Theory II - MyWeb at WIT

I RLY 1 E
I RLY 1 E

... segments into the skin of the patient 21. Similarly, the FIG. 1 is a block diagram of a switch apparatus incor movable contact 5 of the relay RLY-l is connected to porating the present invention. resistors R3 and R4 connected in parallel to leads 61, 62 and FIG. 2 is a block diagram of the adapter u ...
TR41.7.3-01-02-003-SP-3210RV1d00(TIA631A),Mckinnon,AST
TR41.7.3-01-02-003-SP-3210RV1d00(TIA631A),Mckinnon,AST

... Terminal Equipment (TTE) having an acoustic output. Criteria are specified for immunity to radiated RF signals over the frequency range from 150 kHz to 150 MHz and for immunity to longitudinal (common mode) conducted RF signals over the frequency range from 150 kHz to 30 MHz. Criteria for immunity t ...
Chapter 13: Comparators
Chapter 13: Comparators

RF3021 SPDT, HIGH ISOLATION, SINGLE BIT CONTROL, REFLECTIVE SWITCH Features
RF3021 SPDT, HIGH ISOLATION, SINGLE BIT CONTROL, REFLECTIVE SWITCH Features

... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
< 1 ... 181 182 183 184 185 186 187 188 189 ... 409 >

Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report