Ara
Toplam kayıt 12, listelenen: 1-10
Linear variable optical attenuators with shaped-finger comb-drive actuators
(OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2020)
A design method is proposed for variable optical attenuators (VOAs), aiming at linear attenuation-voltage characteristics, and verified by finite element analysis. Devices of interest are planar VOAs based on microelectr ...
Absorption enhancement by semi-cylindrical-shell-shaped structures for an organic solar cell application
(OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2020)
Organic solar cells are attractive for various applications with their flexibility and low-cost manufacturability. In order to increase their attractiveness in practice, it is essential to improve their energy conversion ...
Analytical design of MEMS variable capacitors based on shaped-finger comb-drives
(SPRINGER HEIDELBERG, 2022)
A variable capacitor is one of the widely used components in radio frequency (RF) circuits. Variable capacitors can benefit from the microelectromechanical systems (MEMS) technology, to be equipped with attractive ...
AlN Piezoelectric Quad-Actuators for 2D Optical Micro Scanning
(TAYLOR & FRANCIS LTD, 2022)
Piezoelectric actuation has been one of the frequent choices for
optical micro scanning. In most of the cases, lead zirconate titanate
(PZT) has been used as the piezoelectric material. However, PZT has
a potential issue ...
Shell-shaped active layers for omnidirectional organic photovoltaic cells
(SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, 2022)
For the employment of organic photovoltaic cells in wearable electronic systems, improvements in energy conversion efficiency and omnidirectionality (angular coverage) are highly appreciated. This study aims at those ...
RF MEMS variable attenuators with improved dB-linearity
(SPRINGER HEIDELBERG, 2023)
A variable attenuator is one of the essential components in radio frequency (RF) systems, such as automatic gain control amplifiers and full-duplex systems. Variable attenuators based on microelectromechanical systems ...
Flexible and Ecofriendly Keypad Based on Paper and Pencil
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2023)
Pencil-on-paper electronics has gained growing interests as cost-effective, ecofriendly, flexible, and light-weight
devices for various applications. In this letter, a flexible keypad employing pencil-on-paper capacitive ...
Electret vibration energy harvesters with symmetrically configured curved-beam hinges
(SPRINGER, 2024)
For vibration energy harvesters, broadband power spectral characteristics are often desirable. One way of achieving
broadband spectrum is to employ curved-beam hinges, utilizing their nonlinear spring characteristics. In ...
A design method of comb-drive actuators for linear tuning characteristics in mechanically tunable optical filters
(SPRINGER HEIDELBERGTIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY, 2017)
A new method is proposed in design of comb-drive actuators for specific voltage-displacement characteristics with finger gaps as the design parameters. The design method proposed by the author previously is further refined ...
C-band optical filters with micromechanical tuning
(SPRINGER HEIDELBERGTIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY, 2018)
Tunable optical filters that cover the entire range of the C-band (1530-565 nm) are designed by utilizing the Vernier effect, i.e. series coupling of microring resonators of different sizes, and the micromechanical tuning ...