Filtering wideband slot antenna using split-ring resonator

Wideband Rectangular Dielectric Resonator Antenna (dra) with Slot-fed Design

A novel wideband rectangular dielectric resonator antenna (DRA) is proposed in this paper. A hybrid structure with an isolated dielectric resonator (DR) and an equivalent air-dielectric DR is introduced by lifting the resonator from the ground plane. The hybrid structure is excited by a slot-fed mechanism to obtain a smooth transition between each resonant mode. The resonant modes of the isolat...

Split-ring resonator loaded miniaturised slot for the slotted waveguide antenna stiffened structure

Wideband double-element ring slot antenna - Electronics Letters

Introduction: Annular ring slot antennas are considered to be among the narrowband resonant antennas and occupy an area of l=4p at their first resonance [1]. Multi-element concentric ring slots have been used to design multi-band antennas [2]. However, because of transmission zeros that exist between the different resonances, these resonances cannot easily be merged to obtain a wideband respons...

Electrically Small Antenna Inspired by Spired Split Ring Resonator

A simple metamaterial resonator structure based efficiency electrically small semi-circular loop antenna (ESSCLA) is proposed. It is demonstrated numerically that capacitance offered by the simple metamaterial resonator structure can counteract the inductive impedance of the ESSCLA at the resonance frequency. The overall structures of ESSCLA can be fabricated on one dielectric substrate, and ma...

Design of an Ultra-Wideband Antenna Using a Ring Resonator with a Notch Function

© 2013 Jung-Nam Lee et al. 1075 http://dx.doi.org/10.4218/etrij.13.0113.0472 This paper describes an ultra-wideband (UWB) antenna that uses a ring resonator concept. The proposed antenna can operate in the entire UWB, and the IEEE 802.11a frequency band can be rejected by inserting a notch stub into the ring resonator. The experiment results indicate that the measured impedance bandwidth of the...