The progress shown in mobile phone technology in dealing with multiple band transmission and high data transmission rates has been followed by an increased demand in favor of rich content mobile services and new functionalities. ...

Target identification from scattered electromagnetic waves is a difficult problem especially at low SNR levels, which prevents extraction of distinguishable information. When a scattered signal is corrupted by noise, it ...

This study describes about an omnidirectional antenna for satellite communication applications possessing dual circular polarization at almost over the full azimuth plane and wide elevation plane. The antenna does not use ...

Target identification from scattered signals using time domain techniques depend significantly on the waveform. Recently, a novel feature set is proposed which encounter structural properties of the waveform and collects ...

In this paper, the design of omnidirectional and circularly polarized antennas, which can be used in satellite communication, is explained. These antennas consist of circular slotted array placed symmetrically on a cylindrical ...

In this paper, the design, production and results of different types of omnidirectional and circularly polarized antennas for satellite communication applications such as telemetry or telecommand, are explained. These ...

This paper presents a radar target classification method using high-resolution Min-Norm (minimum norm) technique to discriminate targets in a selected target database. The method is convenient for the targets at the resonance ...

Classification of aircraft targets from scattered electromagnetic waves is a challenging application, which suffers from aspect angle dependency. In order to eliminate the adverse effects of aspect angle, various strategies ...

In this study, an implementation of the metamaterial structure is used in a waveguide directional coupler. For this purpose, a four-hole waveguide directional coupler in X-band is designed. Then, the block of dielectric-resonator ...

Classification of objects from scattered electromagnetic waves is a difficult problem, as it heavily depends on aspect angle. To minimize this dependency, distinguishable features can be used. In this paper, we propose a ...

This study describes about Ku-band antennas with circular polarization in hemispherical radiation pattern for telemetry and telecommand applications of satellite communication. The first section of antenna contains a septum ...

Shielding effectiveness is a term that defines the electromagnetic shielding property of a material. The demand of using wireless technologies and higher frequencies in new devices also bring the need to shield the unwanted ...

The classification of similar shaped objects from scattered electromagnetic waves is a difficult problem, as it heavily depends on the aspect angle. The reduction of the adverse effects of the aspect angle is possible by ...

The classification of similar shaped objects from scattered electromagnetic waves is a difficult problem, as it heavily depends on the aspect angle. The reduction of the adverse effects of the aspect angle is possible by ...

The study describes the effective permittivity and permeability calculation of dielectric resonator arrays embedded in a WR90 rectangular waveguide structure. The scattering parameters are extracted and verified with ...

Ku-band is a frequently used frequency band especially satellite communication application. Telemetry systems collecting measurement or other kind of data are important part especially in the space segment of satellite ...

This paper develops an inverse scattering method to determine the characteristics of resonance region targets by using ultrawideband scattering signals. The method mainly uses multiple time-domain signals for each target, ...

In this paper, the direction of arrival (DOA) and adaptive antenna array beamforming for the smart antenna applications are realized by using Minimum Variance Distortionless Response (MVDR) algorithm of DOA estimation. The ...

The study demonstrates the metamaterial characteristics of the arrays containing dielectric resonators by evaluating the permittivity and permeability coefficients of the array structures in rectangular waveguide and free ...

This study describes about a Ku-band antenna with almost circular polarization in omnidirectional azimuth direction. The antenna structure contains two sections of inclined slotted array on a circular waveguide, and the ...