Switched Dual-Band SAW Filters Using Hybrid and Monolithically Integrated Vanadium Oxide Switches

2021 ◽  
pp. 1-1
Author(s):  
Arash Fouladi Azarnaminy ◽  
Raafat R. Mansour
Keyword(s):  
Vanadium Oxide ◽  
Dual Band ◽  
Monolithically Integrated ◽  
Band Saw

Switched Dual-Band SAW Filter Using Vanadium Oxide Switches

2021 ◽  
Author(s):  
Arash Fouladi Azarnaminy ◽  
Junwen Jiang ◽  
Raafat R. Mansour
Keyword(s):  
Vanadium Oxide ◽  
Dual Band ◽  
Band Saw

scholarly journals Monolithically integrated, resonant-cavity-enhanced dual-band mid-infrared photodetector on silicon

2012 ◽  
Vol 100 (21) ◽  
pp. 211106 ◽  
Author(s):  
Jianfei Wang ◽  
Timothy Zens ◽  
Juejun Hu ◽  
Piotr Becla ◽  
Lionel C. Kimerling ◽  
...  
Keyword(s):  
Resonant Cavity ◽  
Dual Band ◽  
Infrared Photodetector ◽  
Mid Infrared ◽  
Monolithically Integrated

Monolithically Integrated Dual-Band Quantum Well Infrared Photodetector

1997 ◽  
Vol 484 ◽  
Author(s):  
D. K. Sengupta ◽  
S. D. Gunapala ◽  
S. V. Bandara ◽  
F. Pool ◽  
J. K. Liu ◽  
...  
Keyword(s):  
Quantum Well ◽  
Dual Band ◽  
Infrared Photodetector ◽  
Atmospheric Transmission ◽  
Quantum Well Infrared Photodetector ◽  
Monolithically Integrated ◽  
Dependent Behavior ◽  
Response Peak ◽  
Wavelength Detection ◽  
Lattice Matched

AbstractA monolithic quantum well infrared photodetector (QWIP) structure has been presented that is suitable for dual bands in the two atmospheric transmission windows of 3 – 5.3 μm and 7.5 – 14μm, respectively. The proposed structure employs dual stacked, strain InGaAs/AlGaAs and latticematched GaAs/AlGaAs quantum well infrared photodetector for mid wavelength and long wavelength detection. The response peak of the strain InGaAs/AlGaAs quantum well is at 4.9 μm and the lattice-matched GaAs/AlGaAs is at 10.5μm; their peak sensitivities are in the spectral regions of 3 – 5.3mu;m and 7.5 – 14μm. The peak responsivity when the dual-band QWIP is biased at 5 Volts is ∼0.065A/W at 4.9μm and ∼0.006A/W at 10.5μm; at this voltage the dual-band QWIP is more sensitive at the shorter wavelengths due to its larger impedance thus exhibiting wavelength tunability characteristics with bias. Additionally, single colored 4.9 and 10.5μm QWIPs were fabricated from the dual-band QWIP structure to study the bias-dependent behavior and also to understand the effects of growing the strain layer InGaAs/AlGaAs QWIP on top of the lattice-matched GaAs/AlGaAs QWIP. In summary, two stack dual-band QWIPs using GaAs/AlGaAs and strained InGaAs/AlGaAs multiquantum wells have been demonstrated with peak spectral sensitivities in the spectral region of 3 – 5.3μm and 7.5 – 14μm. Also, the voltage tunable dual-band detection have been realized for this kind of QWIP structure.

Monolithically-integrated 3D printed coaxial bandpass filters and RF diplexers: single-band and dual-band

2021 ◽  
pp. 1-12
Author(s):  
Kunchen Zhao ◽  
Dimitra Psychogiou
Keyword(s):  
Low Cost ◽  
Bandpass Filters ◽  
Dual Band ◽  
Coupling Mechanism ◽  
Low Loss ◽  
Monolithically Integrated ◽  
Rf Components ◽  
Low Weight ◽  
Geometrical Features ◽  
3D Printed

Abstract The manuscript reports on additively-manufactured (AM) coaxial-resonator-based bandpass filters (BPFs) and RF diplexers. A monolithic integration concept using stereolithography apparatus (SLA) is proposed and discussed in detail. Coupled-resonator-based synthesis alongside full-electromagnetic-based design methods is used for the design of the monolithic filters and RF diplexers. In particular, the paper discusses a new external coupling mechanism for dual-band BPFs that allow to independently control the coupling in each of the BPF passbands. Furthermore, a novel coaxial transmission line-type T-junction is proposed for the design of single- and dual-band RF diplexers. For practical validation purposes, multiple BPF and RF diplexer prototypes were designed, manufactured and tested at S- and C-band demonstrating the applicability of the proposed concept to low-cost, low-loss and low-weight RF components with complex geometrical features.

Patterned sub-wavelength structure on vanadium oxide film enhancing dual-band absorption

2017 ◽  
Author(s):  
Qi Li ◽  
Bingqiang Yu ◽  
Haiou Li ◽  
Zhaofeng Li ◽  
Xiaofeng Wang ◽  
...  
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide ◽  
Dual Band ◽  
Band Absorption ◽  
Sub Wavelength

DNA sequence mapping in interphase and metaphase chromosomes by fluorescence in situ hybridization

1992 ◽  
Vol 50 (1) ◽  
pp. 496-497
Author(s):  
Barbara Trask ◽  
Susan Allen ◽  
Anne Bergmann ◽  
Mari Christensen ◽  
Anne Fertitta ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Dna Sequence ◽  
Dna Sequences ◽  
Dual Band ◽  
Nick Translation ◽  
Metaphase Chromosomes ◽  
Band Pass ◽  
Texas Red ◽  
Fluorescent Spot

Using fluorescence in situ hybridization (FISH), the positions of DNA sequences can be discretely marked with a fluorescent spot. The efficiency of marking DNA sequences of the size cloned in cosmids is 90-95%, and the fluorescent spots produced after FISH are ≈0.3 μm in diameter. Sites of two sequences can be distinguished using two-color FISH. Different reporter molecules, such as biotin or digoxigenin, are incorporated into DNA sequence probes by nick translation. These reporter molecules are labeled after hybridization with different fluorochromes, e.g., FITC and Texas Red. The development of dual band pass filters (Chromatechnology) allows these fluorochromes to be photographed simultaneously without registration shift.

Dual band hybrid vehicular telephone antenna

2002 ◽  
Vol 149 (1) ◽  
pp. 41-44 ◽  
Author(s):  
L. Economou ◽  
R.J. Langley
Keyword(s):  
Dual Band
Sign in / Sign up

Export Citation Format

Share Document