Parallel and end coupled microstrip band pass filters at W-band

2009 ◽  
Author(s):  
A. O Lindo ◽  
Anju. P. Mathews ◽  
M Gopikrishna ◽  
Nurul Osman ◽  
Robert Leigh ◽  
...  
Keyword(s):  
W Band ◽  
Band Pass

scholarly journals W‐band dual‐band waveguide band‐pass filter using dual‐mode cavities

2018 ◽  
Vol 54 (25) ◽  
pp. 1444-1446
Author(s):  
Jianfei Chen ◽  
Sheng Zhang ◽  
Chao Zhang ◽  
Yuehua Li
Keyword(s):  
Dual Band ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pass Filter ◽  
W Band ◽  
Band Pass

W-band microstrip band-pass filter using branch-line coupler with open stubs

2010 ◽  
Vol 52 (6) ◽  
pp. 1436-1439 ◽  
Author(s):  
Chi-Jeon Hwang ◽  
Lai Bun Lok ◽  
Iain G. Thayne ◽  
Khaled Elgaid
Keyword(s):  
Band Pass Filter ◽  
Pass Filter ◽  
Branch Line ◽  
W Band ◽  
Band Pass

W-Band Micro-Fabricated Waveguide Band-Pass Filters

2020 ◽  
Author(s):  
Naira Jguirim ◽  
Claire Dalmay ◽  
Damien Passerieux ◽  
Pierre Blondy
Keyword(s):  
W Band ◽  
Band Pass

Membrane technology for band-pass filter in W-band

2010 ◽  
Vol 52 (6) ◽  
pp. 1393-1397 ◽  
Author(s):  
Thanh Mai Vu ◽  
Gaetan Prigent ◽  
Robert Plana
Keyword(s):  
Membrane Technology ◽  
Band Pass Filter ◽  
Pass Filter ◽  
W Band ◽  
Band Pass

A W-Band Dual-Mode Band-Pass Filter Based on LTCC Technology

2015 ◽  
Vol 789-790 ◽  
pp. 511-514
Author(s):  
Zhi Gang Wang ◽  
Hao Ding
Keyword(s):  
Return Loss ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pass Filter ◽  
W Band ◽  
Cavity Coupling ◽  
Band Pass ◽  
Degenerate Modes ◽  
Better Than ◽  
Ltcc Substrate

In this paper, a W-band dual-mode substrate integrated cavity fourth-order band-pass filter is presented, which utilizes LTCC technology. The filter is composed of two dual-mode resonators which are constructed by rows of via arrays in the substrate layer. Two coupling vias near particular diagonal corners are set to perturb the two degenerate modes in each cavity and thus to generate an intra-cavity coupling. The filter exhibits 3dB bandwidth about 2.4GHz, return loss better than 19dB and out of band rejection better than 30dB. The filter occupies the area of 3.752mm4.064mm (including the two feeding lines) in the LTCC substrate.

The structure of membranes and membrane proteins embedded in amorphous ice

1992 ◽  
Vol 50 (1) ◽  
pp. 432-433
Author(s):  
Uwe Lücken ◽  
Joachim Jäger
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Membrane Proteins ◽  
Phase Transition Temperature ◽  
Lipid Vesicles ◽  
Freezing Stress ◽  
Amorphous Ice ◽  
Different Temperatures ◽  
Band Pass ◽  
Lipid Polymorphism

TEM imaging of frozen-hydrated lipid vesicles has been done by several groups Thermotrophic and lyotrophic polymorphism has been reported. By using image processing, computer simulation and tilt experiments, we tried to learn about the influence of freezing-stress and defocus artifacts on the lipid polymorphism and fine structure of the bilayer profile. We show integrated membrane proteins do modulate the bilayer structure and the morphology of the vesicles.Phase transitions of DMPC vesicles were visualized after freezing under equilibrium conditions at different temperatures in a controlled-environment vitrification system. Below the main phase transition temperature of 24°C (Fig. 1), vesicles show a facetted appearance due to the quasicrystalline areas. A gradual increase in temperature leads to melting processes with different morphology in the bilayer profile. Far above the phase transition temperature the bilayer profile is still present. In the band-pass-filtered images (Fig. 2) no significant change in the width of the bilayer profile is visible.

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