A miniaturized planar microstrip circularly polarized ultrawideband (UWB) antenna loaded by annular-ring slot is proposed and implemented in the paper. With radiating patch of antenna, side connected asymmetric inverted L-shaped microstrip. At same time, a quarter circle cut off from patch. The above designed structure shows improvements on operating frequency band realization circular polariza...

A newly designed printed slot antenna is presented that incorporates variable two band-notched functions for ultra-wideband (UWB) applications. The two band notches of this coplanar waveguide (CPW) fed antenna are achieved by an M-shaped slot (MSS) embedded in the radiating element and a C-shaped strip (CSS) close to ground plane, therefore two very narrow rejected properties in the wireless lo...

In this paper, the substrate integrated waveguide (SIW) based single and 2×2 multiple input output (MIMO) elliptically tapered slot antennas (ETSA) have been demonstrated at D-band. The width of coupling SIW line is selected to operate TE10-mode within frequency range interest. opening designed in front upper lower metal layers radiating end line. outer sides extensions are corrugated improve i...