[PDF][PDF] Photocontrollable liquid‐crystalline actuators

H Yu, T Ikeda - Advanced Materials, 2011 - academia.edu
The history of human civilization is accompanied by the development of novel materials,
from the period of natural stone, the bronze and iron age, to the modern times of synthetic …

Recent advances in photoresponsive liquid-crystalline polymers containing azobenzene chromophores

H Yu - Journal of Materials Chemistry C, 2014 - pubs.rsc.org
Famous for their photoisomerization, azobenzene and its derivatives have been intensively
studied as among the most fascinating advanced materials. In particular, azobenzene …

Meta-element antenna and array

DF Sievenpiper - US Patent 7,068,234, 2006 - Google Patents
An antenna having at least one main element and a plurality of parasitic elements. At least
some of the elements have coupling elements or devices associated With them, the coupling …

Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same

DF Sievenpiper - US Patent 7,276,990, 2007 - Google Patents
A switch arrangement comprises a plurality of MEMS switches arranged on a substrate
about, and close to, a central point, each MEMS switch being disposed on a common …

[图书][B] Cross-linked liquid crystalline systems: from rigid polymer networks to elastomers

D Broer, GP Crawford, S Zumer - 2011 - books.google.com
With rapidly expanding interest in liquid crystalline polymers and elastomers among the
liquid crystal community, researchers are currently exploring the wide range of possible …

Low-cost HDMI-D packaging technique for integrating an efficient reconfigurable antenna array with RF MEMS switches and a high impedance surface

DF Sievenpiper, AE Schmitz, JH Schaffner… - US Patent …, 2003 - Google Patents
A flexible antenna array comprises a plurality of layers of thin metal and a flexible insulating
medium arranged as a sandwich of layers. Each layer of the sandwich is patterned as …

Large birefringence liquid crystal material in terahertz range

L Wang, X Lin, X Liang, J Wu, W Hu, Z Zheng… - Optical Materials …, 2012 - opg.optica.org
We develop a fluorinated phenyl-tolane based nematic mixture NJU-LDn-4 and evaluate its
frequency-dependent birefringence utilizing terahertz time domain spectroscopy (THz-TDS) …

Adaptive beam forming antenna system using a tunable impedance surface

DF Sievenpiper, JH Schaffner, GL Tangonan - US Patent 7,245,269, 2007 - Google Patents
4,782,346 A 11/1988 Sharma......... 343/795 6,046,659 A 4/2000 LOO et a1 '_ 333/362
4,803,494 A 2/1989 Norris et al................ 343/770 6,054,659 A 4/2000 Lee et a1, _ ZOO/181 …

Steerable leaky wave antenna capable of both forward and backward radiation

DF Sievenpiper - US Patent 7,071,888, 2006 - Google Patents
Leaky wave antenna beam steering that is capable of steering in a backward direction, as
well as further down toward the horizon in the forward direction than was previously …

Super high birefringence isothiocyanato biphenyl-bistolane liquid crystals

S Gauza, CH Wen, ST Wu… - Japanese journal of …, 2004 - iopscience.iop.org
We have designed, synthesized, and evaluated the physical properties of some high
birefringence (Δn) isothiocyanato biphenyl-bistolane liquid crystals. These compounds …