CONTENTS Introduction Objective Electromagnetic Spectrum Microwave region Why wireless charging using microwaves Principle and operation Transmitter Design Receiver Design Process of Rectification Advantages and Disadvantages Future Scope Conclusion Bibliography INTRODUCTION With mobile phones becoming a basic part of life‚the recharging of mobile phone batteries hasalways been a problem. The mobile phones vary in their talk time andbattery
Premium Radio Microwave Electromagnetic radiation
Wire Symbols Electrical Wire Conductor of electrical current Connected Wires Connected crossing Not Connected Wires Wires are not connected Switch Symbols and Relay Symbols SPST Toggle Switch Disconnects current when open SPDT Toggle Switch Selects between two connections Pushbutton Switch (N.O) Momentary switch - normally open Pushbutton Switch (N.C) Momentary switch - normally closed DIP Switch DIP switch is used for onboard configuration SPST Relay Relay open
Premium MOSFET Bipolar junction transistor Electricity
or person for the purpose of identification and tracking using radio waves. Some tags can be read from several meters away and beyond the line of sight of the reader. What is RFID? A basic RFID system consists of three components: a) An antenna or coil b) A transceiver (with decoder) c) A transponder (RF tag) Electronically programmed with unique information. There are many different types of RFID systems out in the market. They are categorized according to there frequency ranges. Some
Premium RFID
is called a directional antenna. When these pulses hit an object like a ship‚ or aircraft they bounce off the object and back to the antenna. These signals are then converted into an electric signal and shown on screen where they can be viewed by an operator. The position of a detected target is determined by measuring the time it takes the signal pulse to travel to the target‚ bounce off‚ and return to the transmitting antenna. Combining this with the direction the antenna is pointing‚ gives the
Premium World War II
(2009) Predicted (2010) Antennas on Cell tower transmit in the frequency range of: • 869 - 890 MHz (CDMA) • 935 - 960 MHz (GSM900) • 1805 – 1880 MHz (GSM1800) • 2110 – 2170 MHz (3G)* Microwave radiation effects are classified as: •Thermal •Non-thermal The current exposure safety standards are mainly based on the thermal effects‚ which are inadequate. EXPERIMENT: Radiation level measurements near several Cell Tower sites A broadband monopole antenna of gain = 2 dB was used to measure
Premium Mobile phone GSM
Installation Guide Page 2 of 4 Mounting the Cello 6W The Cello 6W antenna is housed in the lid of the product. The radiation pattern is upwards and outwards as in picture #1 Pit mounting The Cello 6W unit is to be mounted with the antenna facing upwards and as close to the top of the pit as possible‚ this is to ensure the unit has the greatest signal strength. Kiosk mounting The Cello 6W unit is to be mounted with the antenna facing out of the Kiosk‚ to ensure the unit has the greatest signal strength
Premium Output Input The Unit
benefits of military radar‚ system configuration of a typical military radar‚ operating the radar‚ system functions‚ various terminal equipments used along with their functions and some of the important parts of the radar such as transmitter‚ receiver‚ antenna‚ AFC (Automatic Frequency Control) etc. MILITARY RADARS INTRODUCTION Military radar should be an early warning‚ altering along with weapon control functions. It is specially designed to be highly mobile and should be such that it can be deployed
Premium
gKit 32. TWO STAGE FM TRANSMITTER This Kit is a powerful two stage‚ 9V FM transmitter (Tx) with a range of up to 1 kilometer in the open. It uses an RF transistor in its output stage. Distance of transmission is critically dependent on the operating Conditions (in a building or out on the open)‚ type of aerial used (single wire or dipole)‚ operating voltage (12V is better than 6V) and if the circuit is peaked for maximum performance. The kit is constructed on a single-sided printed circuit board
Premium Capacitor Printed circuit board
Abstract- Driverless cars are the promising approach to reduce the traffic problems. In driverless cars the frequently changing state of the road due to obstacles is controlled by array of sensors‚ which acknowledges the presence of obstacles on the driving path and creates the suitable path by frequently updating the route. This paper describes the efficient Doppler radar system and specialized algorithms to measure the speed of a vehicle used in autonomous vehicles. The velocity‚ acceleration and
Premium Automobile Driverless car Personal rapid transit
Department Dear Sir: Due to my desire to accomplish my project to be submitted on or before February 12‚ 2013‚ I write this letter to ask for a schematic diagram of a 500 watts amplifier with design specifications and an option for an AM/FM tuner/ receiver. This is part of my requirements in my major subject. I appreciate your response about this matter. Very Truly Yours‚ Josephine C. Jagorin Josephine C. Jagorin Senior‚ Electronics
Premium Baguio City Electronic design automation Loudspeaker