Real Time Surge Voltage Control using Smart IoT
Efficient Transmission of FECG Signal using MIMO – OFDM
Deep Convolutional Auto-Encoders for Emotion Recognition from Facial Expressions
A Survey on Network Admission Control Solution in 6LoWPAN using Cryptographic Mechanism
A Comprehensive Review of Visible Light Communication (VLC)
Cognitive Radio Simulator for Mobile Networks: Design and Implementation
Reduced End-To-End Delay for Manets using SHSP-EA3ACK Algorithm
Light Fidelity Design for Audio Transmission Using Light Dependent Resistor
Dynamic Digital Parking System
Performance Analysis of Multi User Transmit Antenna Selection Systems over TWDP Fading Channels
Comparison of Wavelet Transforms For Denoising And Analysis Of PCG Signal
Video Shot Boundary Detection – Comparison of Color Histogram and Gist Method
Curvelets with New Quantizer for Image Compression
Comparison of Hybrid Diversity Systems Over Rayleigh Fading Channel
Design of Close Loop Dual-Band BPF Using CascadedOpen Loop Triangular Ring Resonator Loaded With Open Stubs
In recent years, the study of microstrip patch antennas has witnessed significant advancements, offering numerous advantages and promising prospects compared with conventional antennas. These antennas are characterized by their lightweight compact size, low cost, low profile, small dimensions, and excellent conformability. Additionally, microstrip patch antennas exhibit various desirable features, such as dual and circular polarization, dual-frequency operation, broad bandwidth, flexible feedline configurations, and beam-scanning omnidirectional patterns. In this paper, a microstrip patch antenna design tailored for the 2.4 GHz frequency band is proposed, showcasing its potential for applications in wireless communication devices. The antenna is engineered to operate across multiple bands, including the wireless device band, Ultra Wide Band (UWB), and X band. It has a truncated rectangle shape with additional stubs, whereas the substrate material employed is FR4. The resulting design achieves resonance at four different frequencies, effectively covering the Microwave Access (WiMAX) band at 2.5 GHz and 4 GHz. Notably, the implementation of Digital Global Systems (DGS) plays a crucial role in reducing the antenna size while simultaneously enhancing its performance. The proposed microstrip patch antenna demonstrates great potential for meeting the increasing demand of modern wireless communication devices. Its multiband operation, compact size, and improved performance, achieved through the integration of DGS, make it a promising candidate for various wireless communication applications.
A novel compact miniaturized A-shaped monopole antenna with triple-band operation was designed and presented in this paper. The antenna consists of a microstrip fed with a ground plane and four strip joint connections forming an A-shaped antenna that generates a multiband resonance. The antenna demonstrates three frequency operations with resonant modes of 2.7-3.2 GHz/3 GHz, 3.9-5.1 GHz/4.4 GHz, and 6.8-7.4 GHz/7.1 GHz, with impedance bandwidths of 16.67%, 27.27%, and 8.45%, respectively. The proposed antenna has a compact size of 26×32×0.8 mm3 and demonstrates a good radiation pattern and current density on the surface of the patch and ground. High-Frequency Structure Simulator (HFSS) software was used to simulate the antenna on a Flame Retardant- 4 (FR-4) dielectric substrate.
Antennas play a crucial role in communication as they serve as both transmitters and receivers. They are capable of supporting numerous applications and demanding higher bandwidth among which monopole antennas have emerged as a superior alternative to traditional antennas. A novel coplanar waveguide (CPW)-fed triple-band monopole antenna is proposed for WLAN and WiMAX applications. The antenna features a compact and simple Cshaped strip structure, allowing for easy fabrication. The prototype exhibits triple operating bands covering the required bandwidths of 2.4/5.2/5.8 GHz WLAN and 3.5/5.5 GHz WiMAX standards. Good radiation performance and antenna gain are achieved across the three frequency ranges. Another compact monopole multiband antenna is designed, consisting of five rectangular patches forming a C-shaped structure. It operates at frequencies covering WiMAX, WLAN, short-range radar, and wireless data transmission applications. The antenna demonstrates significant bandwidth to accommodate the respective frequency ranges required for these applications. The antenna design is simulated using HFSS v13 software.
One of the most crucial thing to safeguard the network against malicious activities is security and the network devices must be able to classify packets. The firewall applications benefit greatly from the architecture of the packet classification engine that is given in this research work. A tree-based approach is used to systematically analyze each field in a packet header, leading to a more secure system. The Packet Classification Engine (PCE) is configured to evaluate Ethernet packets based on the source IP address, destination IP address, source port, destination port, and protocol aspects in the packet header. The PCE shows that the typical clock frequency from input to output is 13 clocks per second. The architecture is extremely rapid, reliable, and adaptable and can make good use of the tree based algorithm's advantages. The proposed architecture has achieved high throughput of 538 MPPS with less energy of 10.6 nJ at low latency of 62 ns. The PCE must have a rapid and reliable FIFO buffer to work effectively. A FPGA (Field Programmable Gate Array) device is being utilized to filter Ethernet packets using the proposed PCE.
This paper presents a novel microstrip-fed dual-band monopole antenna that is compact, low-profile, and suitable for WiMAX and WLAN applications. The antenna uses three strips joined together to create a U-shape, with the ground included to generate two resonances in the monopole antenna. The implementation of the three strips in the U-shaped monopole antenna significantly reduced its overall size significantly. Through simulation using the HFSS software, the antenna successfully achieved the desired resonant modes within specific frequency ranges suitable for WiMAX and WLAN applications. In addition, the antenna attained the desired impedance bandwidth at the resonant frequencies, enabling efficient performance within these frequency bands.
