This paper describes the 3D-printed open Double Square Loop (DSL) Frequency Selective
Surfaces (FSSs) based Radio Frequency energy harvester specifically designed for the …

This brief introduces a novel concept of a virtual impedance for tri-band impedance
matching. The proposed mathematical concept, when applied in practical realization …

A dual-band impedance transformer for achieving very high impedance transformation (k)
and frequency ratio (r) is presented in this paper. The design is accompanied by a thorough …

Determining input impedance, assigning reflection coefficient, and matching load
impedance are important transmission line problems those involve complex calculation …

In this paper, a tri-band impedance transformer (TBIT) using a coupled line and a dual-band
to tri-band transformer is proposed, which can transform frequency-dependent complex …

This research demonstrates the additively manufactured dual-band radio-frequency (RF)
energy harvester for green Internet of Things (IoT) applications. The proposed energy …

Este artículo diseña un transformador dual, que puede acoplarse o sintonizarse a dos
frecuencias arbitrarias. Este problema lo formulamos como un problema de optimización …

В роботі розглядається метод підвищення чутливості мікрохвильового сенсора руху на
ефекті Доплера, заснований на застосуванні амплітудної маніпуляції відбитих від …

The Monzon transformer uses two equal-length transmission lines in cascade to match a
real load impedance at two frequencies. The two-section transformer, however, has two …

RESUMO O casamento de impedância é necessário em sistemas de telecomunicações
para garantir a máxima transferência de potência entre dois ou mais circuitos. Métodos de …