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A compact coplanar waveguide (CPW)-fed F-shaped stub printed antenna is presented. The first and second resonance modes are excited due to F-shaped stub connected to modified CPW ground plane and third resonance mode due to modified L-shaped CPW feeding. The impedance bandwidths of 190 MHz (2.06–2.25 GHz) for UMTS band, 530 MHz (4.61–5.14 GHz) for 4.9 GHz public safety WLAN, 1490 MHz (5.45–6.94 GHz)...
This paper deals with the designing an interface between AXI Protocol based system and DDR3 Memory. It enables an AXI host to read and write data in a DDR3 Memory. It has been designed to utilize the DDR3 interface for maximum throughput. It implements FIFO where it stores the write command and writes data and passes it to DDR3 Memory. Similarly, it collects data from DDR3 Memory and stores in a FIFO...
In Wavelength Division Multiplexing (WDM) optical networks, the failure of network resources (e.g., fiber link or node) can disrupt the transmission of information to several destination nodes on a light-tree based multicast sessions. Thus, it is essential to protect multicast sessions by reserving resources along back-up trees. So that if primary tree fails to transmit the information back-up tree...
Design and performance of an ultra-wide band truncated rectangular monopole antenna with band-notched characteristics is presented in this paper. In the proposed antenna, split ring resonator (SRR) is etched inside the truncated rectangular patch of the monopole antenna to achieve band-notch operation. The achieved impedance bandwidth of antenna is from 2.43 GHz to 13.30 GHz, for VSWR < 2...
Design and performance of an ultra-wideband printed monopole with axis symmetrical elliptical slots for tunable band-notched characteristics is presented in this paper. In the proposed antenna, axis symmetrical elliptical shaped slots are cut vertically (along Y-axis) in the circular patch to achieve band-notch operation. The theoretically achieved impedance bandwidth of antenna is 2.51 GHz–10.60...
This research work focuses on Integer Linear Programming (ILP) formulations for the Routing and Wavelength Assignment (RWA) problem in Wavelength Division Multiplexed (WDM) networks where end-users communicate with each other by establishing all-optical, non-interfering wavelength channels which are referred as lightpaths. The RWA problem is reducible to Graph Coloring problem in polynomial time and...
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