By Onur Hamza Karabey
This booklet describes the characterization of liquid crystal fabrics at microwave frequencies and using those fabrics in reconfigurable planar antennas and of their electric tunable elements. It studies for the 1st time the conclusion of a two-dimensional digital beam guidance antenna and polarization agile planar antennas with lcd know-how. It offers a close description of the entire theoretical analyses, modeling and layout equipment that have been concerned with the conclusion of those units in addition to their validation utilizing size of demonstrative prototypes. This ebook additionally indicates that low profile, within your means, excessive achieve, digital beam steerage and polarization agile antennas might be fabricated in greater sizes by utilizing current computerized lcd production suggestions. The cutting edge principles and strategy defined during this paintings symbolize a substantial development within the box of electronically reconfigurable antennas according to liquid crystal know-how and are anticipated to attract major curiosity sooner or later. Such antennas could turn into vital, for instance, in cellular terminals built-in into the physique of laptops (in the canopy) or of vehicles (in the rooftop), ships or boats, for which flat, low-profile and inexpensive antennas are required.
Read Online or Download Electronic Beam Steering and Polarization Agile Planar Antennas in Liquid Crystal Technology PDF
Similar microwaves books
Optical Fiber Telecommunications IIIB
Totally up to date to deal with the hot advances in lightwave platforms, Optical Fiber Telecommunications III, Volumes A & B, offer definitive assurance of an important features of latest optical fiber communications expertise and provides perception into constructing learn in what has turn into a multi-billion greenback international undefined.
High-Speed Photodiodes in Standard CMOS Technology
High-speed Photodiodes in general CMOS know-how describes high-speed photodiodes in general CMOS know-how which permit monolithic integration of optical receivers for short-haul communique. for brief haul verbal exchange the fee element is necessary , and consequently it really is fascinating that the optical receiver might be built-in within the related CMOS know-how because the remainder of the approach.
Field Guide to Terahertz Sources, Detectors, and Optics
The zone of the electromagnetic spectrum among microwaves and infrared radiation has become referred to as the "THz gap," normally as a result of the loss of on hand laboratory assets and detectors. strength functions, in spite of the fact that, relatively in medication, protection, and communications, have resulted in elevated job by way of the mainstream physics and engineering group in recent times.
Small Signal Microwave Amplifier Design
This publication explains strategies and examples for designing sturdy amplifiers for high-frequency purposes, within which the sign is small and the amplifier circuit is linear. An in-depth dialogue of linear community concept offers the basis had to enhance genuine designs. Examples in the course of the booklet will assist you to practice the data won in each one bankruptcy resulting in the advanced layout of low noise amplifiers.
- Topics in Numerical Analysis
- Microwave Antennas
- Electromagnetic Wave Scattering by Aerial and Ground Radar Objects
- Progress in Optomechatronic Technologies: Proceedings of the 2013 International Symposium on Optomechatronic Technologies, Oct 28–30, 2013, Jeju Island, Korea
- Transistor Level Modeling for Analog RF IC Design
- Microwaves and Metals
Additional info for Electronic Beam Steering and Polarization Agile Planar Antennas in Liquid Crystal Technology
Sample text
Mueller, Grundlegende Untersuchungen steuerbarer passiver FlüssigkristallKomponenten für die Mikrowellentechnik, PhD thesis, Technische Universitaet Darmstadt, 2007. [Dem+99] D. L. Ong, Measurement of nematic liquid crystal splay and bend elastic constants with obliquely incident light. J. Appl. Phys. 70, 2023–2030 (1991) [KFN02] T. Kuki, H. Fujikake, T. Nomoto, Microwave variable delay line using dual-frequency switching-mode liquid crystal. IEEE Trans. Microw. Theory Tech. A. Balanis, Antenna Theory: Analysis and Design, 3rd edn.
In Eq. 7), μ0 and ε0 are the permeability and permittivity of free space, accordingly. The pure conductor losses can be seen in γ by a product of εr and K (see Eq. 5)). The insertion losses caused only by the conductor losses not only depend on Rs (equivalently K ), but also depend on the dielectric constant of the MUT since K is multiplied by εr . Therefore, the conductor losses have to be considered in each iteration of the optimization procedure. To do that, Rs has to be known to calculate K (see Eq.
F. K. P. V. K. J. D. ), Microwave Measurements, 3rd edn. (IET Electrical Measurement Series) (The Institution of Engineering and Technology, London, 2007) [DLC08] X. Dong, L. Mai, X. Chen, Computation of the characteristic impedance of eccentric coaxial transmission lines by boundary element method, in Proceedings of World Automation Congress WAC, 2008, pp. 1–5, 2008 [D26] D263 T borosilicate thin glass. R. Eisenstadt, Y. Eo, S-parameter-based ic interconnect transmission line characterization.
