In this paper, band-pass filters based on the microstrip configuration and utilizing coupled defected ground structures are presented. The 50 Ω microstrip line has a gap discontinuity in the middle and characterized by stepped impedance resonators on either half. The four fractal geometries tested for defected ground are the first and second iterations of the modified Moore curve, the closed st...

This paper presents a printed wide-slot antenna design and prototyping on available low-cost polymer resin composite material fed by a microstrip line with a rotated square slot for bandwidth enhancement and defected ground structure for gain enhancement. An I-shaped microstrip line is used to excite the square slot. The rotated square slot is embedded in the middle of the ground plane, and its...

The demand of small, lightweight and high effectiveness antennas has increased significantly with the development communication technologies. Microstrip patch (MPAs) are one most widely used types antenna that can satisfy these requirements. MPAs have numerous benefits, including tiny size weight, ease fabrication, inexpensive. In addition to advantages, also some drawbacks such as limited band...

Abstract In this paper, the design and development of dual-band triple-band fractal microstrip patch antennas with enhanced gain are presented. The structure is based on Sierpinski carpet fractal, where multiband functionality achieved by applying iteration technique. antenna characteristics along analysis reflection coefficient radiation patterns for each (DBFMPA) operating at 4.9 5.3 GHz (TBF...

In this paper, a comparative performance of microstrip filters loaded with various dumbbellshaped defected ground structures (DB-DGS) has been studied in terms of their bandstop characteristics. During this course, a new dumbbell shaped DGS having transmetal slit in the connecting slot of the square head in the ground plane has been proposed. This proposed design provides an improved bandstop r...