Open AccessCircularly polarised printed antenna miniaturised using complementary split‐ring resonators and reactive pin loading
Author(s) -
Gupta Saurabh,
Mumcu Gokhan
Publication year - 2015
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/iet-map.2014.0240
Subject(s) - materials science , resonator , antenna (radio) , split ring resonator , optics , ring (chemistry) , physics , optoelectronics , engineering , electrical engineering , chemistry , organic chemistry
A circularly polarised printed antenna, miniaturised by utilising a combination of complementary split‐ring resonators (CSRR) and reactive pin loadings, is presented. This design technique is shown to reduce the electrical size of the antenna diameter by 44% at 2.4 GHz. The antenna prototype, when radiating a right‐hand circularly polarised beam, displayed 4.1 dBic of broadside realised gain with 70% radiation efficiency. Specifically, it was demonstrated that the stand‐alone CSRR loading resulted in a size reduction of 30%. The addition of reactive pins enhances this factor up to 44% without causing any observable degradation in antenna performance.