to design an antenna which is capable of transmitting and receiving electromagnetic waves operating at 433MHz. Our aim is to maximize the gain of the antenna and achieve impedance matching between load impedance and transmission line’s impedance. Among a wide range of different antennas‚ our group decide to build up a Yagi Uda antenna to fulfill this assignment for two main reasons. Firstly‚ the gain that Yagi Uda antenna provides is very high. Hence for transmission‚ Yagi Uda antenna makes sure all
Premium Antenna Electromagnetic spectrum Impedance matching
Rectangular Microstrip 6X6 Patch Array Antenna Performance Evaluation based on Permittivity of the Substrate Materials 1 P.Sreyash‚ 1A.Snehitha‚ 1V.Satya Sainadh‚ 1P.L.Madhuri‚ 1Saroj Gautam‚ 2 Mr.B.T.P.Madhav‚ 2Mr.Pranob Kumar Charles‚ 3Dr.Habibullah Khan Department of ECE‚ K L University‚ AP‚ India. : sreyash306@yahoo.com‚ Snehitharao@yahoo.com 1 Project Students‚ 2Asst. Professor‚ 3Assoc. Professor‚ 4Head of the Department Abstract: In the recent years‚ the development in communication systems
Premium Antenna
CHAPTER I THE PROBLEM AND ITS SETTING INTRODUCTION The area of wireless power transmission is very interesting. The technology is in its infancy but the overall benefits from its maturation could be significant to society as a whole. World population is expected to continue to grow exponentially. Five sixths of the world’s population lives in developing nations. Most developing nations such as China‚ India‚ and Pakistan are rapidly improving their standard of living. All of these trends point
Premium Wireless Radio Nikola Tesla
Introduction Wireless is a term used to describe telecommunications in which electromagnetic waves (rather than some form of wire) carry the signal over part or the entire communication path. The first wireless transmitters went on the air in the early 20th century using radiotelegraphy (Morse code). Later‚ as modulation made it possible to transmit voices and music via wireless‚ the medium came to be called "radio." With the advent of television‚ fax‚ data communication‚ and the effective use of
Premium Bluetooth Wireless Wireless network
Wireless Signals Michael Rubendall IT/242 February 25th 2013 Benny Lane Wireless Signals Wireless signals are all around us as we walk or drive around the city or town where we live. The four types of wireless technologies that are out there are Wi-Fi‚ Cellular‚ Bluetooth‚ and WiMAX. We will be looking at these types of wireless technologies a little more in depth‚ where are they most commonly used‚ and how they differ from one another. The first wireless technology that we
Premium Mobile phone Wi-Fi Wireless
What is WiTricity ? -WiTricity‚ stands for wireless electricity‚ is a term coined initially by Dave Gerding in 2005 and used by a MIT research team led by prof. Marin Soljačić in 2007‚ to describe the ability to provide electricity to remote objects without wires (wireless power transfer). This could be useful to power consumer and industrial electronics like cell phones‚ laptops‚ etc. -WiTricity‚ a portmanteau for "wireless electricity"‚ is a trademark of WiTricity corporation referring to their
Premium Nikola Tesla
generating point to the consumers’ end without any physical wire has yet to as a familiar and viable technology. This paper focuses on the past and future possible advancements in WPT and explaining why it has still not come into practical utility. Wireless energy transfer has been around for about a century‚ but as of yet has only found usage in things like electric toothbrush rechargers and specialty applications such as beaming solar power down from space. A simple demonstration of it can be constructed
Premium
separation distance and the height of the transmitter antenna? The carrier frequency is 900 MHz. 3. In the 2-ray path loss model with ?derive an appropriate expression far the location of the signal nulls at the receiver. 4 .Compare the received power for the exact expressions for the 2-ray ground reflection model. Assume the height of the transmitter is 40 m and the height of the receiver is 3m. The frequency is 1800 MHz‚ and unity gain antennas are used. Plot the received. 5. Referring to Figure
Premium Radio Decibel Amplifier
WIRELESS TECHNOLOGY INTRODUCTION Technology continues to develop very quickly down to the corner of the world‚ but not with strong will and hard work‚ information technology‚ chaired by the computer becomes a linear phenomenon with the development progress of the age. The development of information technology is developing very rapidly‚ this development can not be separated from the ability of computers to perform data communication and also establish a computer network both
Premium Mobile phone Internet Wireless
Wireless Security Problems and Solutions INDEX: 1. Abstract……………………………………3 2. Introduction………………………………..3 3. WEP and the Small Network……………...4 4. Larger Wireless Environments…………….5 5. VPN……………………………………….6 6. War Driving and War Chalking…………...6 7. Conclusion…………………………………8 8. Biblography………………………………..9 Abstract: The need for security on any network is apparent: the prevention of eavesdropping and the desire for authentication has been the main focus of many network administrators
Premium Wireless networking Wi-Fi Wireless access point