Controllable triple band‐notched monopole antenna for ultra‐wideband applications

Abstract

This study presents a new design of a triple band-notched ultra-wideband antenna. The designed structure of the antenna is based on two radiating strips, and a microstrip feed-line on the front, an inverted T-shaped element and a partial ground on the back. By etching a slot off the ground plane, another resonance is excited resulting in the extended bandwidth. The antenna with new structure occupies a small size of 20 × 14 mm 2 . The measured results show that the antenna has a wide bandwidth from 2.8 to 12.5 GHz for voltage standing wave ratio less than 2 apart from the rejected bands from 3.0 to 3.8 GHz, 5.1 to 6.1 GHz and 7.8 to 8.9 GHz. Meanwhile, radiation patterns and gain at various frequencies have been given.

Liquid Crystal Polymer-Based Flexible Trap Ultra-Wideband Antenna Design

“…In the literature [8], a tapered slot UWB antenna was designed to increase the bandwidth and reduce the area of the antenna by etching a series of rectangular slot lines, and the bandwidth was increased by 4.72 GHz compared to that without the etched slot lines. Te UWB antenna designed in the literature [9] was fed by microstrip lines and operated from 2.8 to 12.5 GHz, and the bandwidth was extended by increasing the resonant point by etching the slot lines on the ground plate.…”

Design of a compact T‐shaped slot antenna for wireless applications

“…It consists of two radiating strips, inverted T-shaped and partial ground on the back of the substrate. 7 The reflection coefficient is less than (approximately 10 dB), and it covers the GPS, WiFi, and WiMAX applications. 8 Coplanar waveguide (CPW)-fed antenna can cover the 2.62/3.40/4.42/5.92/8.32 GHz applications with the return loss (approximately 10 dB).…”