'Free space path loss' diaporamas de présentation

Wireless - Yahel Ben-David -

Wireless - Yahel Ben-David -. EE 122: Intro to Communication Networks Materials with thanks to Scott Shenker, Jennifer Rexford, Ion Stoica, Vern Paxson and other colleagues at Princeton and UC Berkeley. Metrics for evaluation / comparison of wireless technologies. Bitrate or Bandwidth

1k views • 90 slides

975 views • 89 slides

Communications and Data Handling

Communications and Data Handling. Dr Andrew Ketsdever MAE 5595 Lesson 10. Outline. Communication Subsystem Introduction Communications Architecture (uplink/downlink) Data Rates Budgets and Sizing Data Handling Subsystem Introduction Requirements and design Sampling Rates Quantization.

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Wave Crests

Wave Crests Heinrich Hertz Speed of Light Radio waves travel through space at a speed of approximately 300,000,000 meters per second. Electricity travels through a wire and light travels through fiber optics at a speed of approximately 200,000,000 meters per second. Electromagnetic Waves

1.58k views • 53 slides

CWNA Guide to Wireless LANs, Second Edition

CWNA Guide to Wireless LANs, Second Edition. Chapter Ten Managing a Wireless LAN. Objectives. List and describe the tools that are used to monitor a WLAN Explain the procedures for maintaining a wireless network Describe the components of a wireless security policy.

740 views • 53 slides

CWNA Guide to Wireless LANs, Second Edition

CWNA Guide to Wireless LANs, Second Edition. Chapter Ten Managing a Wireless LAN. Objectives. List and describe the tools that are used to monitor a WLAN Explain the procedures for maintaining a wireless network Describe the components of a wireless security policy.

1.01k views • 52 slides

CWNA Guide to Wireless LANs, Second Edition

CWNA Guide to Wireless LANs, Second Edition. Chapter Three How Wireless Works. Objectives. Explain the principals of radio wave transmissions Describe RF loss and gain, and how it can be measured List some of the characteristics of RF antenna transmissions

716 views • 52 slides

CWNA Guide to Wireless LANs, Second Edition

CWNA Guide to Wireless LANs, Second Edition. Chapter Ten Managing a Wireless LAN. Objectives. List and describe the tools that are used to monitor a WLAN Explain the procedures for maintaining a wireless network Describe the components of a wireless security policy.

859 views • 52 slides

Chapter 3

Chapter 3. Radio Frequency Components, Measurement and mathematics. Exam Essentials. Understand the RF components. Know the function of each of the components and which components add gain and which components add loss. Understand the units of power and comparison.

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CWNA Guide to Wireless LANs, Second Edition

CWNA Guide to Wireless LANs, Second Edition. Chapter Three How Wireless Works. Objectives. Explain the principals of radio wave transmissions Describe RF loss and gain, and how it can be measured List some of the characteristics of RF antenna transmissions

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Key Points 1. Principals of EM Radiation 2. Introduction to Propagation & Antennas 3. Antenna Characterization

Key Points 1. Principals of EM Radiation 2. Introduction to Propagation & Antennas 3. Antenna Characterization. 1. Principals of Radiated electromagentic (EM) fields . two laws (from Maxwell Equation) 1. A Moving Electric Field Creates a Magnetic ( H ) field

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Antenna Fundamentals

Antenna Fundamentals. Lecture 4. Objectives. List some of the characteristics of RF antenna transmissions Describe the different types of antennas. Antenna principles. Adjusting Antennas: Antenna Types (continued). Figure 10-17: Azimuth and elevation pattern. H Plane. V Plane.

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Chapter 2

Chapter 2. Radio Frequency Fundamentals. Exam Essentials. Understand wavelength, frequency, amplitude, and phase. Know the definition of each RF characteristic and how it can affect wireless LAN design. Remember all the RF propagation behaviors.

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Graduation Project Indoor Cell Planning For An- Najah Educational National Hospital

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The Technology at the Heart of Optical Wireless

The Technology at the Heart of Optical Wireless. FREE SPACE OPTICS. Imagine a Technology . Simple, cost-efficient high speed connectivity, Work on full duplex, Installed globally, in less than a day license free, Long-range point to point links. FSO - Technology.

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Overview of RFID System Characteristics

Overview of RFID System Characteristics. Operating Frequency Method of Coupling Transmission Range Data Storage Capacity Power Supply (Active, Passive) Read Only / Read-Write Transmission Types (HDX, FDX, SEQ). Method of Coupling.

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Electromagnetic Interference from Wind Turbines on Onsala Space Observatory

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Wi-Gig

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Faculty of Computer Science & Engineering

Faculty of Computer Science & Engineering. Chapter 06: Antennas and Accessories. Question 1. 1. When purchasing RF connectors, which of the following should be considered when making your decision? Choose all that apply. A. Impedance B. Insertion loss C. Gain

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11aj 45GHz Link Budget for use cases discussion

11aj 45GHz Link Budget for use cases discussion. Date: 2012-11-13. Authors:. Abstract. The 11aj amendment shall enable the operation in the Chinese 45 GHz frequency band as the 11aj PAR requests.

282 views • 10 slides