At millimetre wave frequencies, it is possible to expect increased system performance through the use of smart antenna configurations associated with some signal processing capabilities. The analysis and design of intelligent antenna arrays for millimetre wave systems applications can be undertaken using different technologies and techniques but a new and powerful approach using CPW (coplanar w...

This paper presents computational electromagnetics (CEM)-based characterization of smart antenna-system performance in urban microcellular environments. Mutual coupling effects between antenna-array elements are modeled using the method of moments (MoM) and the mobile environment is modeled using electromagnetic ray tracing (ERT). The smart antenna systems simulated in several urban microcells ...

In this paper, 4G smart planar dual-band phased array antenna suitable for fourth generation (4G) Long Term Evolution (LTE) at 3.5 GHz and also Wireless Local Area Network (WLAN) at 5 GHz systems is developed. The proposed planar array antenna is built using a microstrip rectangular U-slotted patch antenna element. Single element and linear sub-arrays with 1× 2 and 1× 4 dimensions of this eleme...

In this paper, we discuss about the problems facing by GSM technology and how a smart antenna system can efficiently counter these problems. Here we present an overview about smart antenna system and how it can be used to eliminate or reduce the problems which limits the performance of GSM. We show here the potential improvements like range extension, multipath diversity, interference suppressi...

This paper presents some hardware implementation results of DOA (Direction Of Arrival) estimator and beamformer developed by our smart antenna project for high speed wireless data transmission. The present system employs smart antenna, FPGA-based digital signal processor and several analog & digital techniques in RF, IF and digital processing, and can estimate DOAs and do beamforming at very hi...

Adaptive smart antenna arrays are used for cellular communication. This paper presents a comparative study of beamforming techniques for adaptive smart antenna using hybrid algorithms like Simple Matrix Inversion with Recursive Least Square (SMI-RLS) and Least Mean Square with Recursive Least Square (LMS-RLS) algorithm. The results are compared on the basis of null depth and error plot for diff...

Directional antennas shape transmission patterns to provide greater coverage distance and reduced coverage angle. Use of adaptive directional antenna arrays can minimize interference while also being more energy efficient. When used in an ad-hoc network, this reduces interference among transmitting nodes and thereby increases throughput. Such “smart antennas” use digital beamforming based on si...

In this paper, a new antenna is presented which has an application in cellular telecommunication systems. The designed antenna works at the frequency range of 1900-2600 MHz which is able to cover 2G, 3G and 4G (LTE) services of the cellular telecommunication. In this paper, the micro-strip structure has been used to design the antenna. The shape of the patches is triangular where a peripheral r...