A set of boundary conditions requiring vanishing of the normal components of the D and B vectors at the boundary surface is introduced and labeled as that of DB boundary. Basic properties of the DB boundary are studied in this paper. Reflection of an arbitrary plane wave, incident with a complex propagation vector, is analyzed for the planar DB boundary. It is shown that waves polarized transve...


 n connection with the development of radio communication systems, microwave, millimeter range, one most important is problem creating compact solid-state radiation sources. The antenna effective interaction between electronic circuits and outside world an component any wireless trend toward line use high frequencies in modern communications. Solutions, space technology, about (30 Ghz), L...

Reducing the size of directive and wideband antennas operating in Very High-Frequency band is a major challenge for small satellite integration. At 100 MHz, wavelength 3 m, reduction will make integration easier reduces fabrication costs. The original technique presented this paper enables significant height (up to 50%) crossed Magneto-Electric Dipole antenna while maintaining an ultra-wideband...

A novel multiband multiple-input-multiple-output (MIMO) antenna system is proposed. The MIMO antenna system consists of two antenna elements, each of which comprises of three radiators: a driven monopole, an S-shaped strip and an inverted F-shaped strip and occupies footprint of 15x18.5x0.8 mm3 only. The driven monopole acts as a quarter-wave monopole and stimulate higher mode resonance. The tw...

A new multiple C-slotted microstrip patch antenna is proposed in the present study. A patch antenna is a wide-beam narrowband antenna. The microstrip patch antenna consists of a very thin metallic strip (patch) placed a small fraction of a wavelength above a ground plane. The patch can be designed in any possible shape and normally made of conducting materials such as copper or gold. This study...

a new multiple c- slotted microstrip patch antenna is proposed.  a patch antenna is a wide-beam narrowband antenna. microstrip patch antenna consist of a very thin metallic strip (patch) placed a small fraction of a wavelength above a ground plane. the patch can be designed in any possible shape and normally made by conducting material copper or gold. this paper presents design of a c- slotted ...

The main feature of the phased array antenna is its ability to control the amplitude and phase excitation of each radiating source in order to form and scan the main beam by electronic control without any mechanical contributions. The phased array is composed of a group of element sources which are distributed and oriented in a linear, two or three dimensional configurations. A comprehensive co...