PRINTED FREQUENCY SCANNING ANTENNA ARRAY WITH WIDE SCANNING ANGLE RANGE

New MUSCAT Array with Parasitic Elements Toward Wide Scanning Range

UHF Angle Scanning Antenna Diversity

A literature study has been carried out to gain insight in the problems related to applying digital wireless indoor links at frequencies around one GHz. Methods to improve the reliability of a wireless communication link include spread spectrum, adaptive equalisation and diversity techniques. In this work diversity techniques will be considered. The use of modem IC techniques makes it possible ...

W-band Planar Wide-angle Scanning Antenna Architecture

Abstract This paper proposes a hybrid scanning antenna architecture for applications in mmwave intelligent mobile sensing and communications. We experimentally demonstrate suitable Wband leaky-wave antenna prototypes in substrate integrated waveguide (SIW) technology. Three SIW antennas have been designed that within a 6.5% fractional bandwidth provide beam scanning over three adjacent angular...

Ultra-Wideband Array Antenna Utilizing Novel Scanning System with Tapped Delay Lines for Short Range Radar

A UWB impulse array antenna (IAA) utilizing a novel electrical scanning system with tapped delay lines is proposed and its usefulness is experimentally verified. The experimental antenna is composed of impulse generators installed in each antenna element and tapped delay lines used for creating transmitting trigger signals, which is a simple circuit configuration. It is shown that the output ph...

Extending the scanning angle of a phased array antenna by using a null-space medium

By introducing a columnar null-space region as the reference space, we design a radome that can extend the scanning angle of a phased array antenna (PAA) by a predetermined relationship (e.g. a linear relationship between the incident angle and steered output angle can be achieved). After some approximation, we only need two homogeneous materials to construct the proposed radome layer by layer....