Smartphone used as Antenna to Accurate Outdoor AP Location --Summary of “I am the Antenna: Accurate Outdoor AP Location Using Smartphones” 1. Background WiFi networks are universally used in our everyday lives. It provides wireless connectivity for a wide range of mobile networking devices. All digital devices can connect to the internet via a wireless network access point that has a range of about 20 meters indoors such as homes and offices and a greater range outdoors such as parks‚ schools and
Premium Wireless access point Wi-Fi
Transmit Antenna Selection with Power Balancing in OFDM Systems Ki-Hong Park‚ Student Member‚ IEEE‚ Young-Chai Ko‚ Senior Member‚ IEEE‚ and Mohamed-Slim Alouini‚ Fellow‚ IEEE Abstract—In this paper‚ we consider multi-carrier systems with multiple transmit antennas under the power balancing constraint‚ which is defined as the constraint that the power on each antenna should be limited under a certain level due to the linearity of the power amplifier of the RF chain. Applying transmit antenna selection
Premium Wireless Modulation
Aarkstore Enterprise 28th November 2014 Aarkstore - Cellular Capacity and Coverage Optimization: Carrier WiFi‚ Small Cells‚ Cloud RAN‚ Distributed Antennas‚ and Selforganizing Networks with Market Analysis and Forecasts 2014 – 2019 Browse Full Report @ http://www.aarkstore.com/technology/60669/cellular-capacity-andcoverage-optimization Published: Nov 2014 | No. Of Pages: 216 Pages PDF: $3995 | Enterprise Wide Licence: $7995 | Five User Licence: $4995 With the significant expansion of global cellular
Premium Mobile phone Wireless access point Cellular network
force is canceled by the positive charges in the transmitting antenna. So‚ the resulting force is an oscillating force that pushes vertically on electrons. This force propagates out as a wave as the signal travels at the speed of light. 2) How does your antenna work to detect this electromagnetic signal produced when radio stations broadcast? Include the physics principles that support your description of how this signal is detected. Antenna works as receiver. The receiver is a nearby loop of wire
Premium Electromagnetic radiation Radio Light
(ICMiCR-2013) Compact dual-band Monopole Antenna for WLAN/WiMAX Applications Khalid Ali Sultan Jasim Y. E. Mohammed Ali Dept. Electrical Engineering University of Mosul‚ College of Engineer Mosul‚ Iraq khalidsultan3041@yahoo.com Dept. Electrical Engineering University of Mosul‚ College of Engineer Mosul‚ Iraq a.yessar@yahoo.com Abstract— This paper displays a new compact monopole antenna of dual band for WLAN/WiMAX applications. The designed antenna has very small size of 30×20 square
Premium Printed circuit board Radio Wireless
Lens Antenna an antenna whose directivity pattern is a result of the difference between the phase velocity of propagation of an electromagnetic wave in air and that in the lens material. Lens antennas are used in radar and metering equipment that operates in the centimeter wavelength range. A lens antenna consists of a lens proper and of a feed. The shape of the lens depends on the refractive index n (the ratio of the phase velocity of propagation of a radio wave in a vacuum to that in the lens)
Premium Optics Wave Electromagnetic radiation
detection .The device can be called as a mobile Base station that includes Sniffer Base station‚ Unidirectional antenna ‚ Tracking software. The sniffer is a small base station that includes transceiver section. It should operate at a frequency which is much different from the frequency of the current cell in which the operation of detection is being carried out. The directional antenna is an important device that is to be designed and used as it plays a major role. There are certain boundary conditions
Premium Mobile phone GSM Radio
References: [1] Tesla‚ N.‚ “The transmission of electric energy without wires”‚ Electrical World‚ March 5‚ 1904 [2] Brown‚ W [3] Kaya‚ N.‚ S. Ida‚ Y. Fujino‚ and M. Fujita‚ “Transmitting antenna system for airship demonstration of Space Energy and Transportation” IEEE Vol.1‚ No.4‚ 1996‚ pp.237-245 [4] Fujiwara‚ E.‚ Y [5] Hatsuda‚ T.‚ K. Ueno‚ M. Inoue‚ “Solar power satellite interference assessment”‚ IEEE‚ Vol. 3‚ No. 4‚ Dec. 2002‚ pp.65-70
Premium Radio Electromagnetic radiation Microwave
source‚ traveling at the speed of light. The source‚ for example an antenna‚ creates oscillating electric(E)/ magnetic(B) fields. These fields are perpendicular not only to each other but to the direction of the traveling wave‚ and travel away from the antenna. The electromagnetic wave is‚ therefore‚ a transverse wave. The electric/ magnetic fields store the energy of the wave. Basically‚ the oscillating current to the antennas sets the electrons in motion. These electrons‚ being accelerated‚ create
Premium Electromagnetic radiation Radio Light
number of portable communication devices is increasing tremendously‚ the design of low profile communications system is in high demand nowadays. The size of antenna can be designed with many kinds of miniaturization techniques. This thesis presents the design of a fractal patch microstrip antenna and a simple rectifying circuit. The antenna is a miniaturized first iteration Koch fractal island patch at 2.45 GHz ISM band (WiFi‚ RFID‚ Bluetooth‚ etc). It is intended for a rectenna which is used to
Premium Rectifier Fractal