Printed Slot Planar Inverted Cone Antenna for Ultrawideband Applications

Abstract

successfully implemented. It has a simple configuration and is easy to fabricate. The approaches to achieve optimization for the proposed antenna are completed via simulation, and the experimental results show wide bandwidth of approximately 61% and 29% for both lower and upper band, respectively. ACKNOWLEDGMENTThe authors thank Yuan-Pu Hsieh for his assistance in completing the design of this antenna. ABSTRACT: Artificial immune systems are classified as computational systems inspired by theoretical immunology and are mechanisms that can solve complex problems. Clonal selection algorithm is a selection algorithm, which is derived as a special selection algorithm to this artificial intelligence concept. In this work, Clonal selection algorithm is applied to design a simple microwave matching network for a load with arbirtary impedance. The results obtained were tested in a microwave simulator and indicated that clonal selection algorithm can be very effectively applied for microwave design problems.

A CPW-Fed Propeller Shaped Monopole Antenna With Super Wideband Characteristics

“…With the development of ultra wideband (UWB) technology for short range and high data rate communications [1], many UWB antennas [2][3][4][5][6][7] have been designed to work on the frequency band ranging from 3.1 GHz to 10.6 GHz. Besides exploiting the UWB operating band from 3.1 to 10.6 GHz for wireless personal area network (WPAN) applications, the current users of WPAN are also eagerly demanding a super wideband (SWB) to cover both short-and longrange transmission for future UWB communications.…”

Ultra-Wideband Performance of Printed Hexagonal Wide-Slot Antenna With Dual Band-Notched Characteristics

“…Due to attractive merits, such as low profile, light weight, ease of fabrication and wide frequency bandwidth, printed wide slot antennas are considered as one of the appropriate candidates for designing the ultra-wide band (UWB) antennas [1][2][3][4][5][6]. As the federal communication commission (FCC) authorized the unlicensed use of frequency band from 3.1 GHz to 10.6 GHz for UWB devices for commercial applications, a great deal of research on UWB technology has come up [7].…”

A Racket-Shaped Slot Uwb Antenna Coupled With Parasitic Strips for Band-Notched Application

“…As an essential part of the UWB system, UWB antenna has been developed widely and rapidly. Although UWB antennas using other planar structures such as dipole patch antennas [1][2][3][4] and slot structures [5][6][7] can be achieved well, monopole antennas are more favorable for UWB application due to their symmetrical and omnidirectional radiation patterns, wide impedance bandwidths, low cross-polarization levels, easy fabrication processes, and so on in [8][9][10][11][12][13].…”