A Compact 3.1- 18.8 GHz Triple Band Notched UWB Antenna for mobileUWB Applications

Abstract

A compact triple band notched tapered microstrip fed Ultrawideband (UWB) antenna for wireless communication applications in C, X and Ku bands is proposed. The antenna having a compact size of 16×26 mm2, consisting of an elliptical patch and a truncated ground structure to achieve impedance of -10 dB bandwidth of 3.1 GHz to 18.8 GHz. Triple band notched characteristics are obtained from 3.7 GHz to 4.2 GHz for C band, 5.18 GHz to 5.85 GHz for Wireless Local Area Network (WLAN) and 8 GHz to 8.4 GHz for X band applications associated with the satellite communication, fabricating three inverted slots that are U-shaped in the patch of elliptical form. Good agreement between theoretical and the practical results achieved through simulation of the antenna proposed is a compatible candidate for portable ultra-wide band applications.

Dolphin swarm optimization algorithm for software‐defined antenna selection algorithm in underwater acoustic sensor network

“…Hence, resulting controllers perhaps unsatisfactory to give stable and effective UUV operation entire the prominent operating ranges. 9 This comparison of perturbation signals has treated the issue of identifying the perfect perturbation signal to completely simulate the dynamics of a nonlinear method, especially, an underwater vehicle. The two classes of signals are multilevel pseudo-random signals, and random noise signals are considered.…”

“…The discrete and centralized planning in GBNN leads to collision-free coverage of the underwater environment across multiple AUVs. 9,24,25 3 | METHODOLOGY…”

“…Usually, designing controllers for UUVs maneuvering involves considerable simplifications to the nonlinear UUV dynamics. Hence, resulting controllers perhaps unsatisfactory to give stable and effective UUV operation entire the prominent operating ranges 9 …”

“…The GBNN determines the route by eliminating dead zones in the underwater environment. The discrete and centralized planning in GBNN leads to collision‐free coverage of the underwater environment across multiple AUVs 9,24,25 . Table 1 shows inferences from literature survey.…”

Uwb Monopole Antenna With Dual Notched Bands Verified by Characteristic Mode Analysis (Cma)

“…To overcome this interference problem, the UWB antennas with band-notch characteristics are desirable. For achieving notch characteristics with UWB elements, several techniques have been reported in the literature [4][5][6][7][8][9][10]. The commonly used methods are based on etching slots on the radiating surface and/or in the ground plane [4][5][6][7], adding a parasitic element(s) near the radiating element, etc.…”