New UWB antenna design for wireless communications

Abstract

The presented work in this article concerns a new ultra-wideband antenna design with an octagonal configuration and reduced dimensions. Different prototypes have been simulated and implemented in the form of monopoles. These prototypes have shown an admissible agreement between simulations and measurements and ultra-wide bands running from 3.1 to 14 GHz for wireless applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:692–697, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.2666

An Uwb to Narrow Band and Bi-Bands Reconfigurable Octogonal Antenna

“…The idea of covering a maximum bandwidth that allows the use of several known frequencies for different wireless applications led us to choose an antenna whose shape of its main radiating element is octagonal. This antenna was proposed in [13], where the authors designed this antenna to work in the band , for a bandwidth of 115.79%.…”

“…The needs of design, which come later on the prototype, force us to enlarge the dimensions of this antenna (Figure 1), where they will be larger than those presented by [13]. The new dimensions of our initial antenna (L sub = 56 mm, W = 60.8 mm) are shown in Table 1.…”

A 2.3–14 GHz UWB planar octagonal antenna with modified ground plane

“…However, one limiting factor of these antennas is their low bandwidth. Therefore, several configurations were carried out to increase the bandwidth of planar antennas such as ultra‐wideband antennas rectangle shape [1–4], circular [5–8], elliptical [9], triangle [10] and several other types of antennas [11–17].…”

Design of a printed compact antenna with enhanced impedance bandwidth

“…So, the limited bandwidth of the printed antennas needs to be further improved for UWB applications. Various wideband planar antennas have been proposed and investigated [2–7]. A notch cut from the radiator was used to improve the impedance matching performance [2, 3].…”

“…A notch cut from the radiator was used to improve the impedance matching performance [2, 3]. Some monopole configurations such as octagonal [4], fractal [5, 6], and square [7] were used to obtain the wide bandwidth. Recently, some new antenna configurations such as an annular elliptical antenna with multiresonant rings [8], printed elliptical monopole antenna fed by a modified tapered CPW line [9], CPW‐fed monopole antenna with notches at the patch and ground [10], CPW‐fed antenna with a modified ground, and semielliptic radiating patch [11], as well as a circular‐ring planar antenna fed by an offset‐microstrip line [12], were proposed, which can further increase the impedance bandwidth performance.…”