Open AccessCompact ultra‐wideband microstrip antenna with dual polarisation/multi‐notch characteristics
Author(s) -
Saxena Shobhit,
Kanaujia Binod K.,
Dwari Santanu,
Kumar Sachin,
Tiwari Rahul
Publication year - 2018
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.2017.0219
Subject(s) - stub (electronics) , ground plane , microstrip antenna , monopole antenna , coaxial antenna , optics , j pole antenna , patch antenna , radiation pattern , wideband , antenna measurement , antenna efficiency , ultra wideband , physics , antenna (radio) , electrical engineering , engineering
A set of two compact ultra‐wideband (UWB) antennas are presented and investigated in this study. Antenna 1 is a dual‐polarised antenna consisting of a hexagonal wide slot, hexagonal stub and rectangular stub in the ground plane for getting UWB radiation characteristics and wide axial‐ratio bandwidth. Antenna 1 radiates for 3.1–10.8 GHz band with 3‐dB ARBW of 67.76% (4–8.1 GHz). Antenna 2 is a multi‐notch UWB antenna and is designed by protruding out a rectangular spiral stub in the ground plane of antenna 1. It has been demonstrated in this work that a desirable number of band elimination notches (up to 14) can be easily achieved in antenna 2. Antenna 2 has been successfully fabricated and experimentally verified for seven band elimination notches with simulated and calculated band elimination notch frequencies in good agreement with each other.