An antenna selection based initial ranging method is proposed in orthogonal frequency division multiple access (OFDMA) networks with multiple-input multiple-output (MIMO) for IEEE 802.16m standard. In the proposed scheme, the initial ranging signal processing is selected by the antenna selection at the base station, where the receive antenna with the largest received signal-to-interference-and-...

This paper represents a new active phase array antenna for Ku-band mobile service that will be possible in satellite broadcasting service. The main idea for the antenna is to use minimum active array element with cost-effective one-dimensional subarrays with inclined pencil beam structure for 34 dBi gain. For this antenna, we also used the squint beam tracking algorithm. This tracking gives dif...

Microstrip patch antennas are light weight and low profile antennas so use of these kind of antennas are more easy in portable and small communication devices where size is concerned . In this paper the analysis of T –slot rectangular microstrip patch antenna is presented. The antenna is designed for wide applications in C-band space communication and wireless LAN communication systems. The ban...

This contribution presents the work in progress towards an active UWB antenna array with beamforming capabilities. Small pulse generators were designed, manufactured and placed directly underneath small uwb monopoles. We show preliminary results of the first measurement campaign with a single antenna and a group antenna in the time domain.

In this paper, a planar directional beam-switchable antenna with four orthogonal beam directions is proposed. The proposed antenna is designed with two crossed active elements and two parasitic elements for each direction. The design methodology is described on the basis of the Yagi-Uda method for the active and parasitic elements, respectively. By adjusting the effective electric lengths of th...

Antenna Miniaturization Using Fractals Richa Garg, AP ECE Deptt., [email protected], J.C.D.C.O.E., Sirsa ABSTRACTThe use of fractal geometry in designing antenna has been a resent topic of interest. Fractal shape has their own unique characteristics that the improved antenna performance can be achieved without degrading the antenna properties. Modern telecommunication system requires antenn...