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This paper presents a wide-band monopole antenna structure printed on a flexible and low cost 104-um thick E4D paper. In order to begin the design process, electromagnetic properties of E4D paper were characterized using the cavity perturbation method with a cylindrical cavity. Then a microstrip fed antenna was designed and optimized to reach a good matching in a wide range of frequency, from 2 GHz...
The paper presents a study on the miniaturization of microwave power dividers/ combiners. The authors propose a modified two-way Wilkinson power divider with dimensions of 33×24mm, twice reduced compared to the standard structure (65×24mm). This new structure has been designed based on an "artificial transmission line" consisting of a microstrip line and two shunt capacitors at its edges...
The characterization of materials by rectangular waveguide method usually requires a sample holder and a complicated procedure of preparing specimen in order to limit the air gaps between the specimen and the boundaries of the waveguide that will affect the accuracy of measurement. In this paper, we present a technique of complex permittivity measurement with a simple MUT (Material Under Test) preparation...
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