In In this paper, two low profile, single fed cavity backed slot antennas providing a circularly polarized (CP) wave are introduced. One of the antennas presents a right-handed CP (RHCP) wave, while the other one offers a left handed CP (LHCP) wave. The proposed antennas consist of a square shaped Substrtae Integrated Waveguide (SIW) cavity incorporatng two couples of radiating slots to radiate...

Transmission lines are used to transmit energy such as acoustic or electromagnetic waves or bulk of electrical energy from one place to another, and co-axial shielded cable of them. Other means of transportation are two-wires (twisted pair cable and un-twisted pair cable). All such transmission lines are prone to noise coupling from ambient environment, for example, noise from capacitive coupli...

We study non-crossing frameworks in the plane for which the classical reciprocal on the dual graph is also non-crossing. We give a complete description of the self-stresses on non-crossing frameworks G whose reciprocals are non-crossing, in terms of: the types of faces (only pseudo-triangles and pseudo-quadrangles are allowed); the sign patterns in the stress on G; and a geometric condition on ...

This paper presents application of line surge arresters (LSA) on the different voltage level multi circuit overhead lines. Double shielded compact with and without distribution same tower is analyzed. Distribution has lower insulation level, meaning that almost all flashovers will happen circuit. Flashovers help to improve lightning performance transmission circuits. diverts fraction current al...

This paper presents the application of model-based and data-driven approaches for prognostics of failures in embedded planar capacitors. An embedded planar capacitor is a thin laminate that serves both as a power/ground plane and as a parallel plate capacitor in a multilayered printed wiring board. These capacitors have gained importance with an increase in the operating frequency and a decreas...

We present results from the flight of two prototype CZT detectors on a scientific balloon payload in September 2000. The first detector, referred to as “CZT1,” consisted of a 10 mm × 10 mm × 2 mm CZT crystal with a single gold planar electrode readout. This detector was shielded by a combination of a passive collimator in the front, giving a 40 degree field of view and surrounded by plastic sci...

We consider sequences that encode boundary circuits of fused polycycles made up of polygonal faces with p sides, p < or = 6. We give a constructive algorithm for recognizing such sequences when p = 5 or 6. A simpler algorithm is given for planar hexagonal sequences. Hexagonal and pentagonal sequences of length at most 8 are tabulated, the former corresponding to planar benzenoid hydrocarbons Cx...