The defects in the form of slots have been employed microstrip antenna either on patch or ground plane to yield frequency reduction. However, reported work does not provide any comparative study that highlight upon and cross-polar level reduction achieved using these various shape slot/defects. This paper provides a thorough for different compact variations antennas obtained plane. Amongst all,...

In this paper, a compact antenna design method is proposed for microstrip patch antennas using double-layered defected ground structure (DGS) configuration. While conventional single-layered yields lower resonant frequency and Q-factor, smaller circuit size can be achieved an additional substrate with higher dielectric constant. The reduction obtained from the LC elements analytically explained...

This paper presents design, simulation, fabrication and electrical analysis of a triple notched band UWB band pass filter. Short circuit stubs and microstrip line defected structures are used to design a triple notched band UWB filter. The proposed UWB BPF consists of five short circuited stubs of quarter wavelength attached to the feed line. The notched bands are created by introducing three U...

In this article, a novel design of multiband microstrip patch antenna has been presented for multiband applications. The Shirt shape antenna is designed on FR-4 substrate and is fed through 50 ohm microstrip feed line. Two l-shape slots are introduced in antenna for size reduction and to provide multiband characteristics while DGS (defected ground structure) is used to achieve bandwidth enhance...

In this paper, a new design of a frequency reconfigurable microstrip antenna by using microstrip line feeding for UWB applications is presented. The process of frequency band rejection is done through the slots on the radiation patch and ground plane of antenna. Also the antenna bandwidth has been improved by using partial Defected Ground Structure (DGS). Then by putting two switches on the gro...

Articolul prezintă un studiu asupra unor tipuri de filtre trece-bandă (FTB) de microunde în tehnologie microstrip, cu o fantă de cuplaj practicată în planul de masă. Prezenţa unei fante poate conduce la un cuplaj electric mai strâns, sau la creşterea părţii electrice a cuplajului mixt, între cele două rezonatoare planare învecinate. Această structură cu defect de masă („defected ground structur...