Open AccessControl of near electric field by topology optimised sub‐wavelength 3D loop antenna
Author(s) -
Jafari A. Mohtadi,
Abdolali A.
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.1570
Subject(s) - topology (electrical circuits) , electric field , loop (graph theory) , wavelength , loop antenna , antenna (radio) , physics , electronic engineering , optics , engineering , electrical engineering , microstrip antenna , mathematics , antenna factor , combinatorics , quantum mechanics
In this Letter, a new method is proposed for the synthesis of the near electric field. This method is based on three‐dimensional (3D) small loop antennas with an engineered shape. An arbitrary shape is used as a new degree of freedom. Also, concerns over the implementation of complex shapes are vanished by 3D printing technology. With the help of an array of 3D small loop antennas, complex distribution of electric fields can be realised. To illustrate the functionality of the proposed method, an array of four elements, all of which is connected to a source, is designed to synthesise the desired electric field distribution. The results of design and experimental measurement showed high accuracy and capacity of this method in controlling the electric field.