RF Designs and Simulations

In many applications pertaining to missile, satellite, spacecraft and aircraft a directive antenna mounted on a curved body is required. Conforming the antenna to the surface save space and is often essential for structural reasons.  An antenna that conforms to a surface whose shape is determined by considerations other than electromagnetic; for example, aerodynamic or hydrodynamic called conformal Antenna.  Microstrip antenna technology is most suitable for conformal applications because of their ability to conform to non-planar structures. Microstrip antenna patches are placed above what may be characterized as a conducting plane with a dielectric substrate separating the patch from the conducting plane .  The properties of such an array depend strongly on whether it is small compared to the radius of curvature of the mounting body, in which case it behaves nearly like a planner array or whether it is comparable or large to the radius. More Detail: Microstrip...

T ime Domain Reflectometry is the analysis of a conductor lines (interconnects)by sending a pulsed signal into the conductor, and then examining the reflection of that pulse. A TDR transmits a short rise time pulse along the conductor. If the conductor is of a uniform impedance and is properly terminated, the entire transmitted pulse will be absorbed in the far-end termination and no signal will be reflected toward the TDR. Any impedance discontinuities will cause some of the incident signal to be sent back towards the source. By examining the polarity, amplitude, frequencies and other electrical signatures of all reflections; tampering or interconnect discontinuity may be precisely located Time Domain Reflectometry is the analysis of a conductor lines (interconnects) by sending a pulsed signal into the conductor, and then examining the reflection of that pulse. A TDR transmits a short rise time pulse along the conductor. If the conductor is of a uniform impedance and is ...