Constant modulus shaped beam synthesis via linear fractional semidefinite relaxation

Autor:	Xiuquan Dou, Mengkai Hu, Qifan Liu
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	constant modulus heuristic rule linear fractional semidefinite relaxation (LFSDR) rank 1 vector extraction shaped beam synthesis Telecommunication TK5101-6720 Electricity and magnetism QC501-766
Zdroj:	IET Microwaves, Antennas & Propagation, Vol 16, Iss 11, Pp 709-717 (2022)
Druh dokumentu:	article
ISSN:	1751-8733 1751-8725
DOI:	10.1049/mia2.12286
Popis:	Abstract Excitation amplitude control is a critical issue regarding the shaped beam synthesis of array antennas. Ideally, excitations can have the same amplitude, and the desired beam can be achieved only by changing the phases. This method is called constant modulus synthesis, which can reduce the complexity of array antennas and is more conducive to the feeding, but it is really difficult to realize. In this paper, the authors derive a novel constant modulus beam synthesis algorithm, which uses the linear fractional semidefinite relaxation to relax the constant modulus constraints. Simulation results show that this method is stable and can maintain the excitation modulus while realizing the shaped beam.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/8cde4fecd9274d33908d0e58f141cad5 Zobrazit plný text záznamu Plný text View record in DOAJ