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We present a new Palm Tree Antipodal Vivaldi Antenna with an Exponential Slot Edge and 3D polylactide‐printed Substrate Lens presents an unprecedented directive radiation pattern, and simultaneously mitigates the side lobe level, increases the main lobe gain, and reduces the angular width, for μ‐biological Near‐Field Microwave Reduction Applications.
A compact electromagnetic multi-resonator is presented in this paper using a new technique for chipless RFID tag data encoding. Employing Archimedean spirals, the information is applied into the spectral signature shifting resonant frequencies in several positions. The multi-resonator tag proposed operates in microwave band (between 3.0–7.0GHz) and has a coding data capacity of up to 100 decimal numbers...
This paper presents a new electromagnetic modeling of a via-hole using a Wave Concept Iterative Procedure. There are specific TM modes associated with the insertion of the via-hole influencing the incident and reflected waves, called the “via's modes”. The formulation and results are presented considering the influence of one and two via's mode. The advantage of the model presented is the possibility...
In this paper, is presented how to calculate the dimensions of a via hole with rectangular cross section from the dimensions of a cylindrical via hole. In the approach presented herein, it is only considered the fundamental TM mode to calculate the propagation constant. This one is determined for a frequency range from 0 to 20 GHz, for both structures. It is shown that the values of constant propagations...
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