Abstract
This document presents the synthesis of different two-dimensional time-domain antenna arrays for steerable energy patterns with side lobe levels. The research is focused on the uniform and nonuniform distributions of true-time exciting delays and positions of antenna elements. The uniform square array, random array, uniform concentric ring array, and rotated nonuniform concentric ring array geometries are particularly studied. These geometries are synthesized by using the well-known sequential quadratic programming. The synthesis regards the optimal true-time exciting delays and optimal positions of pulsed antenna elements. The results show the capabilities of the different antenna arrays to steer the beam in their energy pattern in time domain and how their performance is in frequency domain after the synthesis in time domain.
Highlights
The frequency domain antenna arrays have been widely developed for multibeam, shaped, and phased patterns in narrowband applications
The authors present a novel study of the uniform and nonuniform two-dimensional time-domain (TDTD) antenna arrays geometries, conventional uniform square array (CUSA), conventional concentric ring array (CCRA), uniform square array (USA), random array (RA), uniform concentric ring array (UCRA), and rotated nonuniform concentric ring array (RNUCRA)
This paper addressed the synthesis of energy patterns for different TDTD antenna arrays
Summary
The frequency domain antenna arrays have been widely developed for multibeam, shaped, and phased patterns in narrowband applications. An alternative way for this type of synthesis is to view the problem from the timedomain perspective where it could be solved in an easier way In this case, time-domain (TD) or pulsed antenna arrays have recently been studied by regarding their advantages of low side lobes and high resolution for the modern applications such as radar, remote sensing, and communications [3]. The research in [14] addresses a study of performance of large two-dimensional time-domain (TDTD) antenna arrays for a very narrow-fixed pattern in imaging applications. The study considers the synthesis of different geometries for a SEP with low side lobe level (SLL) To this end, the well-known sequential quadratic programming (SQP) [17] is utilized by finding out the optimal true-time exciting delays and optimal positions of pulsed antenna elements. We do not claim SQP is the best-suited algorithm to synthesize TDTD
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
