Open AccessCompact ultra‐wideband diversity antenna with a floating parasitic digitated decoupling structure
Author(s) -
Khan Muhammad Saeed,
Capobianco AntonioDaniele,
Najam Ali Imran,
Shoaib Imran,
Autizi Elena,
Shafique Muhammad Farhan
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.2013.0672
Subject(s) - decoupling (probability) , diversity gain , electronic engineering , antenna diversity , ultra wideband , antenna (radio) , rayleigh fading , antenna array , acoustics , wideband , computer science , electrical engineering , engineering , physics , fading , channel (broadcasting) , control engineering
A compact planar ultra‐wideband (UWB) multiple‐input–multiple‐output antenna array with two radiating elements is proposed in this work. Elements separation is kept at 5.5 mm and the isolation is achieved with a floating parasitic decoupling structure not known for UWB diversity antennas previously. The antenna system performs very well over the entire UWB frequency range of 3.1–10.6 GHz. The mutual coupling between the radiating elements is below −20 dB in most of the band. The decoupling structure is investigated in detail and the diversity analysis of the antenna in Rayleigh fading environment for indoor and outdoor propagations is also presented by computing envelope correlation coefficients. The proposed antenna array measures 33 × 45.5 mm 2 only and it is suitable for handheld devices, personal digital assistant (PDA)s, next generation home entertainment systems and robots.