in recent years, the plasma antenna is a new technology for replacing the metal antennas that have been designed with better performance. in the steady state, the radiation pattern of a plasma antenna will be similar to the case of metallic antennas with the same form, size and performance at the same frequency and power. by sweeping the parameters in the plasma tube, we can change the operatin...

Dielectric Resonator Antennas (DRAs) have received increased interest in recent years for their potential applications in microwave and millimeter wave communication systems. DRAs are normally used with the support of a ground plane. The radiation and impedance properties therefore depend not only on their physical dimensions and dielectric properties, but also on the size of the ground plane. ...

In this paper a dual band and high gain H-plane horn antenna implemented by substrate integrated waveguide (SIW) using a single layer thin substrate is introduced. The proposed antenna consists of five parts of rectangular waveguide with different width arranged in a staircase manner to allow mode combination of fundamental and higher propagating modes of the structure. By adjusting the length ...

In this paper, a miniaturized coplanar waveguide fed (CPW-fed) tapered slot antenna (TSA) is introduced for breast cancer detection. Here, a modified CPW to slot-line transition structure with an air-bridge is employed to broaden the transition bandwidth and increase the radiation efficiency. Through these applied modifications, negative features of the original TSA (limitation of transition) a...

. Canonical correltotion analysis identified two viewer types. The first viewer type--the one who used television out'of habit, to pass the time, and for entertainment--exhibited sizable levels of television viewing, af#inity (the importance of television in the life of the respondent) , and realism (how realistic the television portrayals were perceived to be). The second viewer type used tele...

The allocation of part the UHF band to 4G and 5G services has generated appearance channel interferences over digital terrestrial television frequency band. In order reduce these interferences, this work presents a novel efficient band-stop filter implemented using microstrip technology. filter, designed with rectangular split-ring resonators etched in ground plane, provides cutoff above 48 (69...