Ultra-Wide Band Radar and its Applications
Voice over Internet Protocol Codec Performance in Interactive Streaming Environment
Design and Simulation of Phased Array Antenna 5G Applications
A Study on Energy Consumption and Impact on Network Lifetime using ANODR and DYMO Routing Protocol in MANETs using QualNet Simulator
A Review on Evolution, Expectations and Key Enabling Techniques of 5G
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 this work, the authors have reviewed the basic concepts of optical fiber network. They describe its key feature and its rapid advancement in the telecommunication industry. The advantages of optical fiber technology in comparison to the conventional data transmission systems and also the basic operating characteristics of fiber optic system is discussed. The work focus on describing the non-linear effects found in fiber communication network, which is the major limitation to the system performance. The objective of this paper is to make readers understand the key terms related to optical fiber technology, specifically different types of non-linearities found in optical fiber to help them carry out their future project works.
This paper presents the design and simulation of a slotted microstrip antenna which supports dual band operation. The proposed antenna covers upper WLAN [5.2 GHz (5.15-5.35 GHz) and 5.8 GHz (5.724-5.825 GHz)] bands. The substrate used is FR4 having a thickness of 1.6 mm and dielectric constant of 4.4 with a loss tangent of 0.02 is used. The designed antenna is compact in size having the size of the substrate as 40X50 mm. It is having two central frequencies at 5.194 GHz (5.11- 5.29 GHz) and 5.778 GHz (5.66- 5.8825 GHz) which achieves a bandwidth of 180 MHz and 222.5 MHz. It gives an improved return loss of -22.6852 dB and -16.697dB at 5.194 GHz and 5.778 GHz respectively. The designed antenna shows the directional radiation pattern at both the frequencies with acceptable front to back ratio and VSWR at these frequencies below 1.5.
The objective of this paper is to design and perform analysis of PIFA in order to obtain the required performance characteristics for mobile and UWB applications. Simulation and analysis were carried out by high frequency structure simulator, HFSS. The proposed antenna covers a wide frequency range from 0.67 GHz to 11GHz. It operates at LTE700 MHz, GSM (800-900 MHz), GPS (1.22 and 1.57 GHz), DCS (1.8 GHz), PCS (1.9 GHz), Wi-Fi and Bluetooth (2.4-2.5 GHz), 5 GHz WLAN and the major part of UWB frequency range The proposed antenna consists of a rectangular patch, rectangular parasitic element, inverted-L Shaped parasitic element, slots in ground plane which produces low frequency resonance and thick feeding terminal. The antenna design parameters are varied to study its effect on performance of the proposed antenna. The proposed antenna has a flat and simple structure, which can be easily implemented.
In this paper, a novel rectangular ring monopole antenna for Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX) is demonstrated. The antenna is designed with a rectangle shaped ring having four different strips. The four strips along with the rectangular ring are used to create a wide impedance bandwidth (2.3-7 GHz) for VSWR ≤ 2, which covers the WLAN frequency ranges (2.4 - 2.483 GHz, 5.15 - 5.35 GHz and 5.725 - 5.825 GHz) and WiMAX band (2.5 - 2.69 GHz, 3.30 - 3.80 GHz and 5.25 - 5.85 GHz) applications. The antenna shows a sufficient wide bandwidth (4700 MHz) with good radiation patterns. The proposed antenna is suitable for WLAN/WiMax standards
A compact size triple band microstrip patch antenna for WCDMA and Bluetooth, Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Local Area Network (WLAN) has been proposed. This antenna is applicable for all wireless application such as Bluetooth, WiFi, WLAN and WiMAX. It is very compact to other existing antennas. This proposed antenna consists of patch with U-shaped Slots, symmetric stair type structure microstrip feed and finite ground plane. It operates over the frequency ranges, 1.9-2.6 GHz, 3.3-3.9 GHz and 4.4-7.1 GHz and suitable for WCDMA and Bluetooth (1.9-2.6 GHz), WiMAX (2.5 / 3.5 / 5.5 GHz), WLAN (2.4 / 5.2 / 5.8 GHz) and WiFi (5 GHz) and also provides band rejection between that frequency bands. The proposed antenna is compact (15x15x1.6 mm3 ) with good return loss and wider bandwidth.
A compact dual band low profile MIMO PIFA antenna for mobile handset GSM (800 MHz - 1100 MHz), Bluetooth (2.4 - 2.48 GHz), WLAN (3.1 GHz - 3.45 GHz), WiMAX (2.5 GHz - 2.69 GHz) applications is presented in this paper. The size of the proposed antenna design is 16 x 33 x 4 mm on a 100 x 45 mm ground plane. Two feeding ports are arranged perpendicular to each other such that, the polarization diversity is exploited because of the reason that the two ports are cross polarized. A slot of size 20 x 37 mm is cut on the bottom plane for optimized isolation of two ports. Introducing slit in the PIFA diverging part and its ground plane results in making quad resonance frequencies and growing the bandwidth, correspondingly. The antenna simply uses an inexpensive substrate FR-4 of 1.6 mm height and dielectric constant of 4.4. Details of a compact, low profile dual band PIFA antenna with slotted ground and patch and height of 4 mm are presented and studied in this paper.