Antennas for Frequency Reconfigurable Phased Arrays

Sensors such as phased array radars play a crucial role in public safety. They are unavoidable for surveillance, threat identification and post-disaster management. However, different scenarios impose immensely diverse requirements for these systems. Phased array systems occupy a large space. In addition, if different antenna systems are needed...

UWB Antennas and MIMO Antenna Arrays Development for Near-Field Imaging

UWB radar is the most promising radar system for the future. In addition, by combining the UWB and array signal processing, one can obtain 3-D images of the objects for classification and identification, which is very useful in many applications. To achieve high-resolution real-time 3-D imaging radar, two essential items are missing in the...

Selected Aspects of Wireless Communication between Nano-devices

Recently, the concept of a nanonetwork has attracted large attention of researchers as it potentially offers low-cost solutions for a wide spectrum of current applications and enables numerous emerging ones. At present, however, all the sensor networks consist of a relatively small number of macroscale devices with their positions carefully pre...

Dual-Band Planar Wide-Angle Scanning Phased Arrays

Mission-driven Resource Management for Reconfigurable Sensing Systems

The spectrum of threats imposed upon modern society has drastically widened in the last decades. One of the required security means is sensor systems. There exist many types of sensors and their capabilities vary, but some of them are reconfigurable and able to provide many functions. Such sensors provide at different time instances a wide range...

Trapped-Victim Detection in Post-Disaster Scenarios using Ultra-Wideband Radar

Rescue dogs are commonly used during the urban search-and-rescue (USAR) operations for the initial indication on the presence of trapped victims after the collapse of man-made structures. However, dogs are not able to inform the rescue crews whether the trapped victims are alive or not and where exactly they are located. Other complementary...