Coplanar waveguide‐fed rose‐curve shape UWB monopole antenna with dual‐notch characteristics

Abstract

In this study, a new design of a planar ultra‐wideband (UWB) monopole antenna with a rose‐curve contour shape is proposed. The rose‐curve circumference of the monopole is expressed in polar coordinates as: r=r0+acos)(nθ. This function enables a flexible and easy to control layout, which directly affects the antenna's response. The arguments of the function are specified based on a simple deterministic design rule and the outputs of a parametric study. The antenna covers the 3.1–11 GHz band and has an ultra‐miniaturised size of 864 mm3 when realised on a RT/Duroid 6010LM substrate of 0.635 mm thickness. To add dual‐notch characteristics to the proposed antenna, a complementary dual‐band split ring resonator inclusion is etched on the antenna's patch near the feeding line. The inclusion is designed to operate at the two Wi‐Fi and ISM frequency bands, 3.5 and 5.8 GHz, respectively. These centre band frequencies are determined using a new hybrid method that utilises the resonant and non‐resonant design approaches of metamaterial structures. Simulated and measured return loss values, radiation patterns and gain values for the proposed antennas (with and without notching) are in very good agreements, and demonstrate satisfactory performance.

A Dual Band-Notched Antenna for Uwb Applications

“…Obviously, the bandwidth as large as possible is expected in UWB antenna design. However, it will cause interference in some useful frequency bands, such as a WLAN (2.4-2.5 GHz) band, WiMax (3.5-3.7 GHz) band, and the IEEE 802.11a (WLAN) systems operating in the frequency band of 5.15-5.825 GHz [7][8][9][10][11][12][13][14][15].…”

Design of Quad-Port MIMO/Diversity Antenna with Triple-Band Elimination Characteristics for Super-Wideband Applications

“…As compared to the UWB systems, the SWB antenna can be used for both short-range and long-range communication. The planar monopole antenna, owing to its small size, light weight, low cost, and ease of fabrication and integration, is a suitable candidate for obtaining UWB/SWB [6,7]. In the literature, several antennas with fractal geometry have been proposed for SWB applications.…”

UWB antenna with dynamically reconfigurable notch band using rectenna and active booster

“…These applications include 3.6 GHz IEEE 802.11y wireless local area networks (WLANs) (3.6575-3.69 GHz), 4.9 GHz public safety WLAN (4.94-4.99 GHz) and 5 GHz IEEE 802.11a/h/j/n WLAN GHz, 5.47-5.725 GHz, 5.725-5.825 GHz) and they all operate within the Federal Communications Commission (FCC) UWB band of 3.1-10.6 GHz. To overcome this problem, agile radios are required that make use of smart reconfigurable UWB antennas capable of cancelling single-, dual-or multi-band interference [3][4][5][6][7][8][9]. There are several methods to achieve a band-notched UWB antenna.…”