Open AccessA dual‐curl antenna with coplanar feedline for sequential rotation
Author(s) -
Hirose Kazuhide,
Ito Naonoshin,
Nakano Hisamatsu
Publication year - 2022
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/ell2.12446
Subject(s) - standing wave ratio , bandwidth (computing) , physics , dipole antenna , radiation pattern , rotation (mathematics) , optics , acoustics , antenna (radio) , electrical engineering , computer science , mathematics , engineering , telecommunications , geometry , microstrip antenna
Using the method of moments, a dual‐wire antenna with a single balanced feed is proposed. To enlarge a 3 dB axial ratio bandwidth, non‐resonant radiation elements and a coplanar feedline for sequential rotation (SR) are used. It is revealed that the bandwidth reaches 49%, which is 1.7 times as wide as that without SR. Subsequently, the balanced feed is transformed into a quasi‐balanced one to consider voltage standing wave ratio (VSWR). It is found that the VSWR remains less than two in the axial ratio bandwidth. Simulated results are verified with experimental ones.