Open AccessSubstrate integrated waveguide antenna subarray for broadband circularly polarised radiation
Author(s) -
Djerafi Tarek,
YouzkatlielKhatib Bassel,
Wu Ke,
Tatu SeriojaOvidiu
Publication year - 2014
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.2014.0121
Subject(s) - return loss , broadband , optics , antenna (radio) , power dividers and directional couplers , axial ratio , radiation , antenna gain , materials science , radiation pattern , antenna efficiency , antenna array , physics , optoelectronics , telecommunications , engineering , microstrip antenna
This study presents a compact circularly polarised array using tapered slot antenna fed by a substrate integrated waveguide (SIW) power divider. With the proposed topology, broadband circularly polarised property is achieved and total gain can be increased by controlling the element length, conserving the same footprint area. The different 2 × 2 cell configurations are investigated. Simple and integrated series–parallel SIW feed for the choose cell is presented. A 2 × 2 antenna array is designed and fabricated using SIW E ‐plane power divider. The measured 10 dB return loss and 3 dB axial ratio bandwidths are 35.65 and 32.3%, respectively. The measured antenna gain is 14.4 dBi at 35 GHz.