Radiofrequency ablation (RFA) is a safe and effective pain therapy used to create sensory
dysfunction in appropriate nerves via thermal damage. While commonly viewed as a simple …

The ultrasound instrumentation uses linear power amplifiers with low power efficiency,
generating unwanted heat and resulting in the deterioration of the echo signal quality of …

We develop a covariance-matrix-based uncertainty analysis for vector-network-analyzer
(VNA) scattering-parameter measurements. The covariance matrix not only captures all of …

A single‐varactor frequency‐reconfigurable microstrip patch antenna is presented. The
antenna comprises a symmetrical arrangement of four metallised patches coupled and …

The development of new mathematical model for guide polarization converter with
diaphragms was carried out in the research by the method of wave matrices. In addition …

A design analysis of the power amplifiers developed for ultrasound applications was
conducted because ultrasound applications require different types of power amplifiers …

Low-observable radomes are generally fabricated in the shape of a composite sandwich
construction whose faces are made of either an E-glass/epoxy or aramid/epoxy composite …

Providing examples of applications, this handbook examines the underlying technology of
each type of power vacuum tube device in common use today. The author reports on new …

Solid solutions of Ba (1− x) Ca x TiO3 (0≤ x≤ 1) ceramics were synthesized by the mixed
oxides solid-state route for solid Perovskites ceramics material. The phase, structural …

The existence of a correlation between current collapse and off-state reverse-bias leakage
current in heteroepitaxially grown AlGaN/GaN high-electron-mobility transistors is …