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2.972  Articles
1 of 298 pages  |  10  records  |  more records»
This paper details the design and implementation of a modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture. The proposed topology targets low data rate communications for Internet-of-Things systems, and has been d... see more

The element failure of digital beam forming array antenna systems used in defence equipment increases the side lobe power level which distorts the beam pattern of the antenna array. The problem of array failure correction becomes more complex when null st... see more

Successfully achieving the mission of the unmanned aerial vehicle (UAV) requiring a high gain data link between the UAV and the ground control station (GCS). The antenna of the ground station must has a narrow, precisely guided beam towards the UAV. Widen... see more

A periodic leaky-wave antenna (LWA) design based on low loss substrate-integrated waveguide (SIW) technology with inset half-wave microstrip antennas is presented. The developed LWA operates in the V-band between 50 and 70 GHz and has been fabricated usin... see more

Sensor Synthetic Aperture Radar (SAR) work using the side looking of the system that is useful to distinguish the signal reflections from the left side or the right side at the same distance from the surface of the object or target. SAR sensors are taken ... see more

Wireless Sensor Networks (WSNs) are receiving an ever increasing attention because they are one of the most important technologies enabling the Internet of Things vision. Since nodes of these networks are battery-powered, energy efficiency represents one ... see more

Sensor Synthetic Aperture Radar (SAR) work using the side looking of the system that is useful to distinguish the signal reflections from the left side or the right side at the same distance from the surface of the object or target. SAR sensors are taken ... see more

The design of a Horn-RADANT lens with electronic beam scanning for the Ka frequency band is presented. The prototype of the antenna consists of a 2bit Radant lens installed on the aperture of an E-sectorial horn antenna. A pair of grids, with rectangular ... see more

Based on crossed-dipole antenna arrays, quaternion-valued data models have been developed for both direction of arrival estimation and beamforming in the past. However, for almost all the models, and especially for adaptive beamforming, the desired signal... see more

1 of 298 pages  |  10  records  |  more records»