CPW-Fed Quasi-Magnetic Printed Antenna for Ultra-Wideband Applications

Abstract

An optimized coplanar-waveguide-fed quasi-magnetic printed antenna for ultra-wideband applications is described. A parameter study, motivated by a design procedure, allowed a substantial increase in the return-loss operational bandwidth. The numerically predicted performance was validated by means of physical measurements of fabricated samples. The measured radiation patterns of the antenna demonstrated its adequate radiation characteristics. The feed radiation was also investigated by means of physical measurements.

Wideband Printed Planar Monopole Antenna for Pcs, Uwb and X-Band Applications

“…The width of the feeding line (W f ) is chosen as 3.56 mm to obtain a 50 Ω characteristic line impedance. The other dimensions are determined by means of bottom-to-up strategy whose main purpose is to improve the impedance matching and its operation steps are summarized as follow [23][24][25]. Firstly, the overall dimensions of the antenna are fixed, then the structure is divided into separate sections ordered by starting from the feeding.…”

“…Therefore, the antenna geometry shown in Figure 1(a) is divided into three design sections, two tapered transitions and a radiator, and the resulting antenna is called preliminary PPMA. Two tapered transition sections provide smooth impedance transition between the feeding line and radiation section [23,24]. The first tapered transition section, which is the one adjacent to the feed line, is the most sensitive part, and therefore, this section must be optimized first to get desired impedance bandwidth.…”

Architecture and Design Procedure of a Generic SWB Antenna with Superb Performances for Tactical Commands and Ubiquitous Communications

“…cit. ; Schantz et al, 2003Schantz et al, , 2004and Tanyer et al 2009a), to keep this chapter self-content and avoid cross-reference, we summarize them here:…”

Over 150% bandwidth, quasi-magnetic, printed antenna

“…This antenna was previously discussed in [3,4], the therein presented design methodologies being now stretched to their extreme limits. The result is a printed antenna having an impedance matching bandwidth that, to the authors' best knowledge, exceeds any currently reported performance of similarly fabricated radiators.…”

“…The result is a printed antenna having an impedance matching bandwidth that, to the authors' best knowledge, exceeds any currently reported performance of similarly fabricated radiators. Upon recognizing the major impact of the feeding technique on the overall antenna characteristics, a coplanar waveguide (CPW) line is used to this end, the benefits of this solution being extensively examined in [3,4] and the therein cited references. In particular, [4] clearly demonstrated that the radiation from the CPW line has a negligible aport in the global economy of the radiation from this type of antenna, a fact that further recommends such a feeding technique.…”