Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"Input Reactance"”.
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An Investigation on the Effect of Ground Plane Roughness on Antenna Radiation Characteristics
… via increased wind speed, on the antenna input impedance and resulting total field. In particular, the antenna input reactance is found to be very sensitive to variations in the surface near the base of the antenna. The directionality of the Pierson-Moskowitz surface due to wind direction …
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On the accuracy of estimating input impedance of probe-fed air-substrate microstrip patch antennas using the theory of characteristic modes
… modes are developed to estimate the input impedance of air-substrate, coaxial probe-fed, microstrip patch antennas with arbitrarily shaped patches. Such an antenna with an L-shaped patch is fabricated and experimentally measured, and a case study performed comparing the accuracy of …
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Investigation of Low Profile Antenna Designs for Use in Hand-Held Radios
… small and low-profile antennas experience high input reactance, low input resistance, and low radiation efficiency.Further degradation of radiation efficiency occurs in hand-held radios due to size-reduced ground planes, losses within the plastic device casing, and losses due to coupling with …