55.1Invited Paper: Liquid Crystals for Smart Antennas and Other Microwave Applications

2015 ◽  
Vol 46 (1) ◽  
pp. 824-826 ◽  
Author(s):  
Michael Wittek ◽  
Carsten Fritzsch ◽  
Johannes Canisius
Keyword(s):  
Liquid Crystals ◽  
Smart Antennas ◽  
Microwave Applications

77‐1: Invited Paper: Liquid Crystals beyond Displays: Smart Antennas and Digital Optics

2019 ◽  
Vol 50 (1) ◽  
pp. 1098-1101 ◽  
Author(s):  
Carsten Fritzsch ◽  
Benjamin Snow ◽  
Joe Sargent ◽  
Dagmar Klass ◽  
Sarabjot Kaur ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Smart Antennas

scholarly journals Measurement of Dielectric Anisotropy of Some Liquid Crystals for Microwave Applications

2009 ◽  
Vol 502 (1) ◽  
pp. 235-244 ◽  
Author(s):  
H. Xu ◽  
O. Trushkevych ◽  
N. Collings ◽  
W. A. Crossland
Keyword(s):  
Liquid Crystals ◽  
Dielectric Anisotropy ◽  
Microwave Applications

Accurate Modeling for Wideband Characterization of Nematic Liquid Crystals for Microwave Applications

2009 ◽  
Vol 57 (12) ◽  
pp. 3293-3297 ◽  
Author(s):  
R. James ◽  
F.A. Fernandez ◽  
S.E. Day ◽  
S. Bulja ◽  
D. Mirshekar-Syahkal
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Microwave Applications

The Structure and Development of Microbodies in the Fat Body and other Tissues of an Insect (Calpodes Ethlius)

1970 ◽  
Vol 28 ◽  
pp. 148-149
Author(s):  
M. Locke ◽  
J. T. McMahon
Keyword(s):  
Electron Microscopy ◽  
Liquid Crystals ◽  
Fat Body ◽  
Competitive Inhibitor ◽  
Dense Core ◽  
Urate Oxidase ◽  
Blood Proteins ◽  
Free Base ◽  
The Core ◽  
The Matrix

The fat body of insects has always been compared functionally to the liver of vertebrates. Both synthesize and store glycogen and lipid and are concerned with the formation of blood proteins. The comparison becomes even more apt with the discovery of microbodies and the localization of urate oxidase and catalase in insect fat body.The microbodies are oval to spherical bodies about 1μ across with a depression and dense core on one side. The core is made of coiled tubules together with dense material close to the depressed membrane. The tubules may appear loose or densely packed but always intertwined like liquid crystals, never straight as in solid crystals (Fig. 1). When fat body is reacted with diaminobenzidine free base and H2O2 at pH 9.0 to determine the distribution of catalase, electron microscopy shows the enzyme in the matrix of the microbodies (Fig. 2). The reaction is abolished by 3-amino-1, 2, 4-triazole, a competitive inhibitor of catalase. The fat body is the only tissue which consistantly reacts positively for urate oxidase. The reaction product is sharply localized in granules of about the same size and distribution as the microbodies. The reaction is inhibited by 2, 6, 8-trichloropurine, a competitive inhibitor of urate oxidase.

An atomic-resolution microscope study of Al contracts on GaAs

1986 ◽  
Vol 44 ◽  
pp. 726-727
Author(s):  
Z. Liliental-Weber ◽  
C. Nelson ◽  
R. Ludeke ◽  
R. Gronsky ◽  
J. Washburn
Keyword(s):  
High Speed ◽  
Schottky Contacts ◽  
Detailed Knowledge ◽  
The Past ◽  
Semiconductor Interfaces ◽  
Deposited Metal ◽  
Microwave Applications ◽  
Free Interfaces ◽  
Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

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