Optics

Linear Variable NIR Bandpass Filter- DELTA

DELTA has lifted the application range of variable filters to new levels by introducing a new powerful type of linear variable filter (LVF). Since DELTA offered the first linear variable filters in ...
Optics

Ultra-Narrow Linear Variable VIS Bandpass Filter

Delta Optical Thin Film has lifted the application range of variable filters to new levels by introducing a new powerful type of linear variable filter (LVF). Since Delta Optical Thin Film offered the ...
IEEE

Low-loss bandpass RF filter using MEMS capacitance switches to achieve a one-octave tuning range and independently variable bandwidth

Abstract: We demonstrate a low insertion loss (1.5dB) tunable two-pole bandpass radio frequency filter with a tuning range of one octave (812-1752 MHz). It is also tunable in band width, with ...
IEEE

Suppressing harmonics of differential-mode voltage with a variable capacitance filter in single-phase inverters

Abstract: In a single-phase inverter, the problem of the differential-mode harmonics suppression at switching frequency is very prominent while the switching frequency is low. This paper presents a ...