Triple band‐notched UWB monopole antenna on ultra‐thin liquid crystal polymer based on ESCSRR

Abstract

A triple band-notched UWB monopole antennas is presented for flexible electronics. To enhance the flexibility, ultra-thin liquid crystal polymer with 50 μm thickness is used as the substrate. The antennas are constituted by swallow tail radiation patch and trapezoid ground. Moreover, band-notched characteristic is realised by etching different sized elliptic single complementary split-ring resonators on the radiation patch. An improved triple band-notched UWB antenna with notched-frequency bands at 3.7-4.2 GHz, 5.15-5.35 GHz, and 5.725-5.825 GHz are designed by a novel capacitance compensation method. The measured radiation patterns indicate that the antennas are an omni-directional antenna both at flat and bent circumstances. The occupied area of antenna is 27 × 21 mm.

A Novel Dual-Band Binary Branch Fractal Bionic Antenna for Mobile Terminals

“…At the same time, with the miniaturization of the terminal device, the radiator is usually bent and folded to increase the antenna electrical length to make the antenna operate at lower frequencies [12]. e bending and folding method of the antenna radiator structure is used to increase the electrical length of the antenna to achieve miniaturization of the antenna [13][14][15]. Among these design methods, fractal structure approaches are the most representative for their compact size, low profile, and multiband response, with fractal self-similarity and space filling used to increase the antenna electrical length and radiation efficiency [16][17][18].…”

Flexible Antennas: A Review

“…Paper-based inkjet-printed UWB antenna was introduced first in earlier studies [ 153 , 154 ]. Later various shapes of the conducting patch were designed to improve the efficiency of the antenna [ 153 , 154 , 155 , 156 ]. A compact, the high efficient polymer-based flexible antenna was proposed in [ 157 ].…”

Triband Operation Enhancement Based on Multimode Analytics of Modified Rhombic Ring Structure with Fractal Ring Parasitic

“…e literature review shows that multiband antennas can be categorized into two types: wideband antennas with notch frequency [2][3][4][5][6][7] and multiband antennas with multiple resonators [8][9][10][11][12][13][14]. In [2], the wideband antenna with notch frequency composed of a swallowtail patch, trapezoid ground, and three split ring resonators was proposed. e triple band notch was generated by the three split ring resonators placed on the radiation patch.…”

“…Two C-shaped resonators were placed adjacent to the transmission line to produce a notch frequency. e disadvantage of the antennas in [2][3][4][5][6][7] is that the operating frequency bands could not be independently controlled and the antenna radiation patterns were unusual due to the higher-order radiating modes of the antenna.…”