In this paper, the improvement of radiation characteristic for planar array-antenna by incorporating spiral shaped defected-ground-structure (DGS) is presented. The proposed planar array-antenna which ...

Millimeter-Wave High Radiation Efficiency Planar Waveguide Series-Fed Dielectric Resonator Antenna (DRA) Array: Analysis, Design, and Measurement ...

Patterned on a germanium wafer using standard nanofabrication processes, the 6 mm by 6 mm planar lenses could act on radiation at wavelengths of 3µm, 5µm and 8µm. The resulting metalens is as thin as ...

A planar dual-polarized phased array is proposed for 5G cellular communications. The array has the properties of dual-polarization, wideband, and quasi-endfire radiation, which is printed on one side ...

Abstract This paper describes the application of the Firefly Algorithm for the optimization of linear and planar antenna arrays. In order to demonstrate the potential of this technique, three ...

The Ka-band array obtains a -10dB impedance bandwidth of 12% (27.4GHz ~ 30.9GHz). When the scanning angles are 0° and 60°, the measured channel isolation is larger than 35dB at K-band.

RESEARCH TRIANGLE PARK, N.C.--(BUSINESS WIRE)--CivaTech Oncology, a medical device company dedicated to developing innovations in radiation therapy, announced today it has received FDA clearance ...