Microwave Transmission Basics Microwave Transmission Basics Table of Contents • MW Advantages • MW Frequency bands • MW Link elements • Antenna Radiation Pattern • MW Alarms Microwave Transmission Basics Features Advantages Rapid Deployment – A microwave link can be installed in as little as one day No right-of-way issues – Radio spans all obstacles such as roads‚ railways‚ etc.‚ avoiding any requirement to seek permissions that inevitably are costly and introduce time delays
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Development Isaac Newton – Particle Theory & Prism Christiaan Huygens – Wave Theory Thomas Young – Double-Slit Experiment James Maxwell – Electromagnetic Theory Heinrich Hertz – Radiowaves & Wireless Experiment William Roentgen – X-rays Max Planck – Radiation Theory Albert Einstein – Photo Model • 3. Isaac Newton (1642-1727) Particle Model of Light (1671) Light rays is comprised of a stream of massless particles • 4. Particle Model of Light (1671) Explains straight-line propagation of light:
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nuclei stable and others unstable? Whether nuclei are stable or unstable depend on their neutron:proton ratio. What happens when an unstable nucleus emits an alpha or beta minus particle? Alpha radiation consists of alpha particles which each comprise of 2 protons and 2 neutrons. Beta radiation consists of fast moving electrons. A beta minus particle is emitted because a neutron is changing into a proton. What is a photon? A photon is a ‘packet’ of quantum of electromagnetic waves. An
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my book is that after the explosion‚ three of the main characters got very ill do to radiation sickness. Father Kleinsorge is walking through the city to deposit money in Hiroshima when he suddenly becomes weak and barely makes it back to the mission. Mrs. Nakamura’s hair begins to fall out‚ and she and her daughter become ill. At the same time‚ Mr. Tanimoto‚ weak and feverish‚ becomes bedridden do to the radiation sickness. So he doctors started to reopen their hospitals and so now the people are
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speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The definition of produced visible light means when the electromagnets radiation meets the human eye. The first example of produced is a glow stick because it produces its own light . Another example of produced visible light is Fireworks. Also a vapor lamp is a good example of produced light . The definition of reflected means
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Unit7 Assignment 1 #1 transmission lines are specialized cables and other media designed to carry alternating current and electromagnetic waves of high frequency (radio frequency or higher)‚ high enough that its wave nature must be taken into account. #3 Solid dielectric cable has become the national standard for underground electric transmission lines less than 200 kV. There is less maintenance with the solid cable‚ but impending insulation failures are much more difficult to monitor and detect
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water sample B‚ the iron was present in the proportions of 0.9037ppm‚ 1.614x10-5M and 9.037x10-3%. Introduction: Spectroscopy is the study of the interaction of light or electromagnetic radiation with matter. Spectrophotometry is any technique that uses light to measure chemical concentrations. Electromagnetic radiation is a form of energy when reacted with matter‚ can be absorbed‚ reflected or refracted‚ and how EMR reacts with matter depends on the properties of the material‚ based on the frequency
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When just right‚ the electromagnetic force would balance out the force of gravity‚ suspending particles in midair. * Noticed charge was always multiples of 1.6 x 10^19 * Q= mg/E Gold Foil Experiment * Radioactive particles (alpha radiation)
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Fundamental Limits on The Radiation Q of Electrically Small Antennas‚” IEEE Transactions on Antennas and Propagation Vol 44‚ NO. 5‚ May 1996‚ pg. 672-675 [5] Johan C.—E. Sten‚ Arto Hujanen‚ and P¨ivi K. Koivisto‚ “Quality Factor of an Electrically Small Antenna a Radiating Close to a Conducting Plane‚” IEEE Transactions on Antennas and Propagation‚ VOL. 49‚ NO. 5 May 2001‚ pp. 829—837 [6] Gary A. Thiele‚ Phil L. Detweiler‚ and Robert P. Penno‚ “On the Lower Bound of the Radiation Q for Electrically Small
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PhD. "Understanding Health Disparities: The Role of Race and Socioeconomic Status in Children’s Health." American Journal of Public Health 96.4 (2006): 702-08. American Public Health Association. Web. 23 Apr. 2013. "Radiation and Pregnancy: A Fact Sheet for the Public." CDC Radiation Emergencies. Centers for Disease Control and Pervention‚ 14 Nov. 2011. Web. 23 Apr. 2013. Sigelman‚ Carol K.‚ and Elizabeth A. Rider. Life-span Human Development. Belmont‚ CA: Wadsworth‚ Cengage Learning‚ 2011. Print
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