<span>A frequency reconfigurable antenna is presented in this paper as a novel single port system gathering the functionalities of both underlay and interweave cognitive radio. This 25×30×0.8 mm<sup>3</sup> involves wide slot to cover ultra band (UWB) range with resonating stubs that are used prohibit/work-only-in specific bands within UWB frequencies. Here, six positive intri...

This paper introduces a new tri-wideband fractal antenna for use in wireless communication applications. The manufactured developed has Sierpinski hexagonal-shaped radiating element and partial ground plane loaded with three rectangular stubs slits. investigated small footprint of 0.19λ0 × 0.24 λ0 0.0128 improved bandwidth gain. According to the measurements, designed resonates throughout frequ...

This study proposes a multiband printed planar antenna with cloud-like grooves. The outer contour of the is shaped like cloud, and groove-like pattern similar to in ancient China. It can support 3G, 4G, 5G, WLAN, Bluetooth, WiMAX, other applications. Based on traditional monopole antenna, combines advantages coplanar waveguide. uses an Archimedes helix create grooves that resemble Chinese cloud...

This article describes the construction of a dual-band planar monopole antenna. A microstrip patch antenna with feedline impedance 50 ohm and composed G-shaped inverted L-shaped strips is used to make suggested ultra wideband for frequencies ranging from 3.1 10.6 GHz. In order design antennas, we need know dimensions 40x40x1.6 mm3 thickness ground plane (0.035 mm) (5.2 GHz). There method alteri...

Abstract The use of miniaturized antennas in wireless communications is very common. In the current paper, a miniature coplanar-waveguide fed-rectangular patch antenna with semicircular ground presented. performance was studied at two different configurations; straight and bent. Cross lines were added to ensure obtained frequency band. Different parameters evaluated including return-loss, radia...

An automatic artificial intelligence (AI)-driven design procedure for mutual coupling reduction and a novel isolator are proposed frequency reconfigurable antenna array. The process is driven expedited by the parallel surrogate model-assisted differential evolution synthesis (PSADEA) method. array element can switch its operation between 2.5 GHz ISM band 3.4 WiMAX band. By introducing isolator,...

Recently, the best antenna structures have considered microstrip patch due to their simple construction, low cost, minimum weight, and fact that they can be effortlessly integrated with circuits. To achieve multi-band operation an is designed etching rectangle circle slot on surface of frequency capabilities in mid-band 5G applications. Inset-fed structure type fed all printed fabricated brow R...

A novel planar ultra-wideband (UWB) antenna with triple-notched bands using triple-mode stub loaded resonator (SLR) is presented in this paper. The basic UWB antenna consists of a circularshaped radiating element, a 50Ω microstrip feed line, and a partially truncated ground plane. Then, the resonance properties of the SLR are studied. Results reveal that the multiple-mode property of the SLR ca...