Carbon Nanotube Antennas for Wireless Communications


Wireless System Evolution
Cellular:
2G – GPRS – 56-114 kbps
2.5G - EDGE – up to 400 kbps (Evolved EDGE – 1 Mbps)
3G:
HSPA – 7.2 Mbps (AT&T completed 2009)
HSPA+ 21/42 Mbps
LTE/WiMAX/IMT-Advanced – 100 Mbps and higher
LTE: 50 Mbps UL, 100 Mbps DL (deployment in 2012 by AT&T)


WLAN:
802.11n:
>100 Mbps in MAC
>3 bits/sec/Hz
802.11ac (< 6GHz) and 802.11ad (60 GHZ)
>500 Mbps ....etc

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wireless charging of mobiles using microwaves
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Presented By:
Kulbir Singh1, Vinit Grewal2 and Rajiv Saxena3
1ECED, Thapar University, Patiala, India,
2 National Institute of Technology, Jalandhar, India
3Jay Pee Institute of Engineering and Technology, Raghogarh, Guna , M.P., India


Abstract “
Wireless applications, particularly with multiple resonances, put new demands on antennas pertaining to size, gain, efficiency, bandwidth, and more. One promising approach in this regard is to use fractal geometries to find the best distribution of currents within a volume to ....etc

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Submitted by
NEERAJ MANI TRIPATHI


ABSTRACT
A detailed study on the various next generation nature inspired geometry antennas
i.e. fractal antennas is performed. Mainly four types of printed fractal antennas i.e.
Sierpinski Carpet, Quasi Koch Fractal, Mix fractal and Sierpinski Gasket Fractal
are designed using 3D FEM based solver (Ansoft HFSS), which are basically
variants of Patch antenna. Maximum iteration is three and these antennas are fed
using three basic techniques Transformer Feed, Inset Feed and ....etc

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Smart Antenna
ABSTRACT
One of the most rapidly developing areas of communications is Smart Antenna systems. This paper deals with the principle and working of smart antennas and the elegance of their applications in various fields such a 4G telephony system, best suitability of multi carrier modulations such as OFDMA etc. This paper mainly concentrates on use of smart antennas in mobile communications that enhances the capabilities of the mobile and cellular system such a faster bit rate, m ....etc

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Abstract
Virtual Cellular Networks (VCN) are an attractive type of adaptive
wireless communication architecture for propagation- and
coverage-limited environments. In this paper, we investigate the
advantages of combining a VCN and multiple receiving antennas
for the downlink resulting in a MIMO system. Several ways
to combine the signals with different levels of complexity are
presented. In the most complex case, we show that it is possible
to add coherently the contribution of each antenna in a virtual
cell ....etc

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presented by:
Shuhui Yangyand Jie Wuz


Abstract
In this paper, we consider the issue of efficient broadcasting in mobile ad hoc networks(MANETs) using network coding and directional antennas. Network coding-based broadcastingfocuses on reducing the number of transmissions each forwarding node performs in the multiplesource/multiple message broadcast application, where each forwarding node combines some ofthe received messages for transmission. With the help of network coding, the total number oftransmissions ....etc

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