Abstract
The meta-surface is introduced into the design of band-notched monopole antennas with single/dual/triple notched bands around 3.6/5.5/7.2 GHz for ultra-wideband (UWB) communication. We show that strong coupling effects between the meta-surface and the antenna would be created through tuning the orientations of the meta-cells according to the field distributions on the antenna surface, and eventually, filter the unwanted radiations of the antenna. Especially, by simply attaching different meta-surfaces on the back of the antenna, the band-notched properties are shown to be changeable without hurting the original structure of the antenna. Both simulation and measurement results demonstrate the monopole with replaceable meta-surfaces has achieved an UWB operating band ranging from 3 to 9 GHz for voltage standing wave ratio (VSWR) ≤ 2 with single/dual/triple notched bands covering frequencies around 3.6/5.5/7.2 GHz. Such a design would obtain significant notched performances for the desired bands and maintain the good radiations in the operating frequency, which make it a suitable candidate for UWB applications.
Original language | English |
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Pages (from-to) | 843-851 |
Number of pages | 9 |
Journal | International Journal of Microwave and Wireless Technologies |
Volume | 15 |
Issue number | 5 |
DOIs | |
State | Published - 21 Jun 2023 |
Keywords
- Band-notched antenna
- coupling effects
- meta-surfaces
- reconfigurable
- ultra-wideband antennas