In practical radar systems, the conventional adaptive sidelobe canceller (SLC) works very
well as long as the input signal-to-interference-plus-noise (SINR) ratio is low or when the …

Generally, the null steering is performed by controlling the amplitude and/or phase
weightings of all element excitations or only a small number of them. In such cases, a need …

Null steering in adaptive arrays is usually achieved by controlling the complex weights of all
or most of the array elements. This study explores an alternative approach, where only the …

In monopulse radar antennas, the synthesizing process of the sum and difference patterns
must be fast enough to achieve good tracking of the targets. At the same time, the feed …

In practice, the amplitude and phase excitations of array elements undergo random errors
that lead to unexpected variations in the array radiation patterns. In this paper, the technique …

Rectangular grid antennas are widely used in practice due to their advantages and
versatility. This paper simplifies the design procedures of such antennas by optimizing their …

Partitioning large planar antenna arrays into smaller subarrays reduces the system costs
and gives many other advantages. In this article, symmetrical T-shaped tetromino subarrays …

Adaptive antenna arrays have shown their effectiveness and powerful capabilities in modern
communication and radar systems. However, maintaining this effectiveness under …

The thinning methods were usually used to simplify the array complexity by turning off some
of the radiating elements in large planar arrays which lead to unavoidable reduction in the …

Regular fully filled antenna arrays have been widely used in direction of arrival (DOA)
estimation. However, practical implementation of these arrays is rather complex and their …