Open AccessMultiport analysis and design of segmented antennas
Author(s) -
Kajfez Darko,
Hasse Roger,
Scialacqua Lucia
Publication year - 2021
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/mia2.12159
Subject(s) - directivity , bandwidth (computing) , omnidirectional antenna , electronic engineering , electrical impedance , directional antenna , biconical antenna , computer science , engineering , electrical engineering , slot antenna , antenna (radio) , telecommunications
A design procedure is described which enables simultaneous control of the input‐impedance match, directivity, and bandwidth of segmented antennas. Their impedance properties can be accurately determined by a straightforward multiport analysis, which makes it possible to optimise the values of individual reactances with the use of closed‐form objective functions. Two practical omnidirectional segmented monopole antennas have been designed, built, and tested, to verify the proposed design procedure. One is a single‐tuned design with the narrow bandwidth of 1% and realised gain of 6.7 dBi, and another is the double‐tuned design with 42% relative bandwidth and realised gain of 6.2 dBi.