Abstract To realize a better radio frequency (RF) communication system, the RF switch, as an important module, is used to cooperate with other devices form front end for optimizing performances. This paper designs single-pole multi-throw (SPMT) which exhibits low insertion loss of 0.57 dB at 1.9 GHz under voltage 2.2 4.7 V. The switch fabricated using 130 nm silicon-on-insulator (SOI) complemen...

BACKGROUND The aim of this retrospective investigation was to evaluate the incidence of loss to pulp sensibility testing (PST) of maxillary front teeth after paramedian (3 to 5 mm away from the suture) orthodontic mini-implant (OMI) insertion in the anterior palate. METHODS A total of 284 patients (102 males, 182 females; mean age was 14.4 years (±8.8) years at time of OMI-Insertion) with a t...

In this paper, a new X band Metamaterial (MTM) based ferrite phase shifter is presented. The phase shifter is excited by circular polarized wave base on combination of TE10 and TE01 modes in a square waveguide. In order to synthesize negative refractive index metamaterial (NIM), negative permeability of ferrite slabs in extraordinary mode is mixed with the negative permitivity of printed period...

Helmholtz resonators (HRs) have the advantage of extending and improving their insulating capacity when used as scatterers in noise barriers made periodic media, such sonic crystals (SCs). However, interaction between multiple Bragg scattering local resonance phenomena can increase or decrease insulation barrier depending on its design. In present work, we numerically investigate factors that d...

Cryogenic isolators play an important role in low-noise receiver systems widely employed millimeter and submillimeter telescopes. To enable a significantly wider Intermediate Frequency (IF) bandwidth, there is strong demand for wideband, low-loss isolator modern facilities like the Submillimeter Array (SMA) Atacama Large Millimeter/submillimeter (ALMA). In this article, we present novel cryogen...