This research proposes a compact indirect slot-fed wideband patch array antenna for missile seeker application. The proposed single consists of three dielectric layers radiator, an air substrate-integrated waveguide (SIW) cavity, and feeding network. rectangular is used as radiator on the first substrate layer, SIW cavity (ASIWC) employed to obtain high directivity low mutual coupling character...

In this study, we implement attosecond afterburners in an ultrashort soft X-ray free-electron laser (FEL) to improve the performance of generating pulses. scheme, FEL pulse produced normal radiator section is dumped while well bunched electron beam reserved and reused downstream afterburners. Subsequently, radiation gains rapidly as bunching factor current spike large, making much shorter clean...

In this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time. design, continuous tuning achieved by integrating varactor diode in folded dipole radiator, which backed water-filled reflector to produce radiation pattern mimicking characteristics of microstrip patch antennas. The radiating component expl...

A finite-difference time-domain (FDTD) numerical analysis is used to demonstrate that a toroidal solenoid, coaxial with an electric dipole, is a remarkable nonradiating configuration. It can be used to measure the dielectric permittivity of any ambient matter. It becomes a directional radiator at an interface between two dielectric media, depositing energy in the material with the highest polar...

Various different objects have been reported to strangulate the penis. We reported on a patient who used metal radiator clamps for an extended period of time. Workup included history, physical examination and urinalysis. The patient was taken to the operating room for further evaluation with cystourethroscopy and orthopedic wire cutters were used to break the metal bands.