A printed monopole ellipzoidal UWB antenna with four band rejection characteristics

A modified split ring resonator based printed compact monopole UWB antenna with spiked elliptical radiator having five band rejection features

“…The group delay is more or less stable for the entire resonance band, but there is a sharp and huge change in the notches. Table depicts a comparison of the proposed antenna with some recently reported antennas in References . Some major conclusions can be drawn after doing the comparative study, that is, size of the proposed antenna is minimum among the various listed antennas, the whole impedance bandwidth of the specified frequency bands has been covered for which notches had been designed, no additional use of thin parasitic elements which ultimately make the fabrication procedure difficult and novelty of antenna geometrical configuration.…”

“…A Y‐shaped UWB antenna of dimension 38 × 36 mm 2 has been proposed in which five undesired stop bands have been achieved by applying both single and symmetrical resonators in patch and ground . The measured results presented in both the research papers are quite appreciable but at the same time more work can be done to reduce the size of the proposed antenna and further to reduce the gain at the notched frequencies, A GSM and Bluetooth UWB antenna of dimension 48 × 46 mm 2 has been reported in which two symmetrical stubs are incorporated to get GSM band . In this article, two inverted U‐slots are used to get band notches at WiMAX and WLAN.…”

“…But the size of the antenna is 80 × 80 mm 2 , that is, very large which limits the practical application of the proposed antenna. A single I‐shaped and three inverted U‐shaped resonators are etched on the patch with dimension 36 × 27 mm 2 to get four notches . A Y‐shaped UWB antenna of dimension 38 × 36 mm 2 has been proposed in which five undesired stop bands have been achieved by applying both single and symmetrical resonators in patch and ground .…”

UWB four elements antenna array

“…It has been shown that the use of fractal shapes as radiating elements helps to improve the characteristics of the UWB antenna. Last years' works show that the interest in the design and implantation of the UWB antennas is continuous.…”

“…It has been shown that the use of fractal shapes as radiating elements helps to improve the characteristics of the UWB antenna. Last years' works [19][20][21][22][23] show that the interest in the design and implantation of the UWB antennas is continuous. No one of the abovementioned antenna arrays has a notch filter to reduce the effect of the UWB system on the WLAN systems working at the 5.5 GHz band.…”