A novel compact design of planar T-shaped monopole antenna with multi-band operation for WLAN/WiMAX system is proposed. By insetting a pair of mirrored L-shaped monopole strips, multi resonant modes close to 2.45/3.5/5.5 GHz band are excited to meet the specifications of WLAN/WiMAX system. And, the obtained impedance bandwidth across the operating bands can reach about 160/1100/2690MHz for the ...

Army Ground Vehicles are equipped with various antennas that span over a large frequency range of operation. Many of these antennas often encounter physical obstructions from other equipment on the platform. A typical omnidirectional antenna for example, would have difficulty maintaining its performance due to unwanted blockage from these obstructions. In order to overcome the issues of overcro...

MORE (MAC-independent Opportunistic Routing & Encoding) could increase network throughput by using network coding. On the other hand, directional antenna has better power efficiency and introduce the possibility of space diversity. In this paper, the authors try to combine directional antenna with opportunistic routing protocols and tried to use Network Simulator version2 to simulate it. The re...

In order to meet the requirements of partial discharge (PD) detection electrical equipment in substation station area, ultra-high frequency (UHF) antenna with broadband, high gain and horizontal plane (H-plane) omnidirectional is studied designed as a PD sensor. By analyzing characteristic impedance structural characteristics biconic antenna, it determined be an UHF wideband for detecting PD. T...

In this paper, the integration of directional antennas in a room-level received signal strength (RSS) fingerprinting-based indoor localization system (ILS) is studied. The sensor reader (SR), which is in charge of capturing the RSS to infer the tag position, can be attached to an omnidirectional or directional antenna. Unlike commonly-employed omnidirectional antennas, directional antennas can ...

1 Student, Department of Electronics Engineering, Madhav Institute of Technology & Science Gwalior, Madhya Pradesh, India 2Assistant professor, Department of Electronics Engineering, Madhav Institute of Technology & Science Gwalior, Madhya Pradesh, India ---------------------------------------------------------------------***------------------------------------------------------Abstract: In thi...

In this paper, a planar monopole antenna is introduced, also we added some new Nano fillers such as Fumed Silica and Aluminum Oxide to RT Duriod5880 and RO3003 to produce new Nano composite materials, then new Nano composite materials are used as a substrate of a ultra-wideband monopole antenna. Antenna characteristics are considered to illustrate that, by using these Nano composite materials, ...

In this paper, a novel design of a compact planar ultra wide band (UWB) monopole antenna with triple band notched characteristics has been presented. The antenna has a unique shape and has been fed through a 50 Ω microstrip feedline. The strength of the antenna lies in three band notched properties for WiMax system at 3.3 3.7 GHz, WLAN IEEE 802.11a at 5.15 5.85 GHz and X band satellite communic...

The demand for small wireless telecommunications modules that can access the IMT system has increased and their use has proliferated to the remote control of applications such as controlling stock and verifying purchases for vending machines, managing taxi operations, reading of meters, and managing delivery trucks. The IMT system mainly uses the 800 MHz to 2 GHz frequency band. We focus on act...

In this paper we consider a wireless network, where each transceiver is equipped with a directional antenna, and study two direction assignment problems, determined by the type of antennas employed. Given a set S of transceivers with directional antennas, located in the plane. We investigate two types of directional antennas — quadrant antennas and half-strip antennas, and show how to assign a ...