A Novel Elliptical-Cylindrical Antenna Array for Radar Applications

SLL attenuation-based thinned antenna design for next-generation communications

“…Hence, in this paper, much better radiation characteristics are achieved over [17]. On the other hand, in this paper, further 42.32 dB (182.12-139.8 dB) SLL reduction is achieved over the non-uniform excitation antenna [21] at hyper beam exponent of 0.1 (k = 0.1). Moreover, this paper contributes a better practical antenna design than using non-uniform excitation weights of the array elements: (1) unlike the previous work [21], a large number of the array elements can be completely turned off which indicates that a huge amount of power can be conserved; (2) the computation complexity of the thinning of the array elements (in this paper) is simpler whereas the non-uniform excitation takes longer time and hence late for faster design-requiring applications;…”

“…1, and the radiation characteristics of an antenna are given by the array factor (AF). Hence, the overall radiation pattern of the EcAA is the multiplication of the linear array factor and elliptical array factor described in [3,17,21].…”

“…Hence, the SaDE algorithm automatically adapts the learning strategy along with the parameter's settings. A similar system model is discussed in [21] and [27] with the main differences are highlighted:…”

“…Though an inter-element coupling problem is solved, the optimization technique complexity and the ability to scan the azimuth direction and further SLL reductions are still important. In [21], a novel antenna for radar applications has been studied using non-uniform excitation weights of the individual elements of the antenna array. However, since the excitation weights are not uniform the implementation is complex for practical considerations.…”

Performance evaluation of space time trellis coded MIMO for mobile communications

“…The performance of diversity combining has shown great importance of MIMO [11]. The choice of antenna array for beamforming and hence MIMO systems has also attracted researchers [12,13]. Furthermore, several researches have been conducted on MIMO signal processing and massive MIMO transmission on different cell structures [14][15][16][17][18].…”