a power divider (pd)/ power combiner (pc) with high quality factor and enhanced output ports isolation using substrate integrated waveguide (siw) technology is proposed. an siw cavity is designed to provide a high quality factor filtering response and an smd resistor is attached between two output ports to realize the high isolation. the value of the applied resistor is calculated by using the ...

In this paper, a high-Q resonator is presented and its structure is in the shape of spiral, hence Complementary Spiral Resonator. The measurement of the complementary spiral resonator itself shows that a higher loaded quality factor is provided as compared to the Double H-Shaped Resonator. The resonator was designed to operate at a frequency of 10 GHz and the phase noise performance of the syst...

Due to the widespread integration of renewable energy sources connected AC and DC power systems by means electronics converters, electromagnetic noise propagates along lines, metallic earth-return structures. EMI filters are commonly used mitigate common mode differential at interface distribution their suppression characteristics usually assessed in standard test setups, impedances which are, ...

In this study, a novel compact bandstop filter (BSF) by utilizing the defected ground structure (DGS) and microstrip (DMS) techniques are presented. DGS, DMS, compensated capacitors used on both bottom top layers to obtain sharp transition wider stopband. The operating frequency bandwidth of can be comfortably regulated tuning dimensions etched structures. addition parametric studies, an equiva...

The available experimental data on return stroke speed for both negative and positive lightning are reviewed. The often assumed relationship between the return-stroke speed and peak current is shown to be generally not supported by experimental data. Reasons for the return-stroke speed being lower than the speed of light are discussed. Index Terms Lightning return stroke, propagation speed, pea...