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Sunday, July 26, 2020 | History

2 edition of Miniature microwave devices using superconducting coplanar slow-wave transmission lines found in the catalog.

Miniature microwave devices using superconducting coplanar slow-wave transmission lines

Dung-Shing Hung

Miniature microwave devices using superconducting coplanar slow-wave transmission lines

by Dung-Shing Hung

  • 61 Want to read
  • 21 Currently reading

Published by University of Birmingham in Birmingham .
Written in English


Edition Notes

Thesis (Ph.D) - University of Birmingham, School of Electrical and Electronic Engineering, Faculty of Engineering.

Statementby Dung-Shing Hung.
ID Numbers
Open LibraryOL18055740M

We study the microwave impedance of extremely high aspect ratio (length/width ≈ ) superconducting niobium nitride nanowires. The nanowires are fabricated in a compact meander geometry that is in series with the center conductor of a 50 Ω coplanar waveguide transmission line. Most transmission lines use two conductors, where one is considered ground. This includes coax (the outer conductor is ground), microstrip and stripline. The transmission line that does not use a pair of conductors is waveguide. By the way, we are talking about lossless transmission lines .

The first edition of “Microstrip Filters for RF/Microwave Applications” was published in Over the years the book has been well received and is used extensively in both academia and industry by microwave researchers and engineers. From its inception as a manuscript the book is almost 8 years old. While the fundamentals of filter circuits have not changed, further innovations in filter. Introduction: Microwave networks and the insight that builds them CHAPTER 1 TABLE OF CONTENTS 6 Line of sight (LOS) A clear path—free of any obstructions—between points of microwave signal transmission and reception. Link The connection of two fixed microwave sites via a line-of-sight (LOS) path. paths called links.

TABLE OF CONTENTS Article List A/D and D/A Conversion Architectures and Techniques Acoustic Microwave Devices Active Antennas Active Filters: Overview of Active Filter Structures Active Filters: Tools and Techniques for Active Filter Design Adaptive Array Antennas Altimeters Amplitude Shift Keying Analytical and Adaptive Modeling of Nonlinear High Power Amplifiers Anisotropy and Bianisotropy. This chapter focuses on microwave transmission lines. The purpose of uniform transmission lines is to transfer energy from a generator to a load. waveguides, or planar transmission lines, such as strip lines, microstrip lines, and coplanar waveguides. Select Chapter 1 - Klystrons. Book chapter Full This chapter covers slow-wave devices.


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Miniature microwave devices using superconducting coplanar slow-wave transmission lines by Dung-Shing Hung Download PDF EPUB FB2

Another important feature of the slow-wave coplanar transmission lines in microwave monolithic integrated circuit (MMIC) design is the reduction of the propagation speed, which results in. A novel slow-wave half-wavelength coplanar waveguide (CPW) resonator using high-Tc superconducting (HTS) films has been studied and used in a new filter topology.

Superconducting transmission lines and related passive devices Superconducting transmission lines. In microwave circuits, a transmission line is the material medium (or structure) that forms all or part of a path for directing the transmission of electromagnetic waves from one place to another.

It not only serves as an Author: Y.S. He, C.G. Both designs use parallel-coupled feed lines to avoid current crowding, The first design includes backward- and forward-coupled filters, has 1% bandwidth, and has handled over 25 watts of input. In this method a transmission line is designed as a slow-wave synthetic line by repeatedly disturbing either the signal or the return current by adding slots in the grounds over or under the line.

This paper investigates the filter properties of a superconducting coplanar waveguide (CPW) periodically loaded with stepped-impedances. The unit cell of the stepped-impedance filter is a cascade of two transmission lines (TLs) with different characteristic impedances. A prior art example of slow-wave line is the ladder line described by J.

Hong and M. Lancaster in “Superconducting Filters Using Slow Wave Transmission Lines”, Microwave and Optical Technology Letters, Vol.

9, No. 4, Julypp. (FIG. 22), in which the solid strip conductor of a typical microstrip line is replaced by a. Superconducting coplanar waveguide resonators for low temperature are small.1–7 The frequency of transmission line based micro-resonators is determined only by their length along the di- in plane of the device and perpendicular to the microwave B 1 field (see Fig.

1(a)). This paper presents a miniature-size band-reject filter on a Coplanar Waveguide (CPW) transmission line using series connected complementary split ring resonators (CSRRs) and series capacitive. We study the microwave impedance of extremely high aspect ratio (length/width ≈ ) superconducting niobium nitride nanowires.

The nanowires are fabricated in a compact meander geometry that is in series with the center conductor of a 50 Ω coplanar waveguide transmission line.

The transmission coefficient of the sample is measured up to 20 GHz. Wolff Ingo, Coplanar Microwave Integrated Circuits: Wolff/Coplanar Microwave Integrated Circuits, ISBN, / Fukuoka Y., Itoh T., Slow-wave propagation on MIS periodic coplanar waveguide, /el Miniature Open-Loop and Hairpin Resonator Filters.

Slow-Wave Resonator Filters. Miniature Dual-Mode Resonator Filters. Lumped-Element Filters. Miniature Filters Using High Dielectric-Constant Substrates.

Multilayer Filters. 11 Superconducting Filters. High-Temperature Superconducting (HTS) Materials. 1 hour ago  A coplanar waveguide (CPW) transmission line consists of a center metallic strip located between two wide grounded metallic strips on the two sides.

31 August Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes Xia Yao, Nicolas A. Leonard Chow (City univ of Hong-Kong). A variant of coplanar waveguide is formed when a ground plane is provided on the opposite side of the dielectric, which is called finite ground-plane coplanar waveguide (FGCPW), or more simply, grounded coplanar waveguide (GCPW).

The advantages of coplanar waveguide are that active devices can be mounted on top of the circuit, like on microstrip. Various MMIC (monolithic microwave integrated circuit) planar waveguides have shown possible existence of a slow-wave propagation.

In many practical applications of these slow-wave circuits, the semiconductor devices have nonuniform material properties that may affect the slow-wave. RF and Microwave Engineering is one of the fastest growth areas of the past decade and will probably continue to be a very active area of research and application in a large variety of fields.

The six volume set of Encyclopedia of RF and Microwave Engineering illustrates how this field has been the key to enabling technology responsible for the phenomenal growth of wireless communications. The second important idea is to use superconducting transmission lines to move the RSFQ pulses from one logic element to another.

Superconducting transmission lines have low dispersion and low loss, thus preserving the spectral content of the short pulses.[13,14] Using these two basic ingredients, RSFQ circuits can be designed to reproduce.

The microwave properties of coplanar waveguides with line widths from 1 {micro}m to 40 {micro}m made of superconducting YBaCuO films with a thickness t = nm on LaAlO{sub 3} are investigated. The line impedance Z{sub L} and the normalized propagation coefficient {beta}/{beta}{sup 0} of these waveguides are measured between 45 MHz and The short wavelengths of microwaves allow omnidirectional antennas for portable devices to be made very small, from 1 to 20 centimeters long, so microwave frequencies are widely used for wireless devices such as cell phones, cordless phones, and wireless LANs (Wi-Fi) access for laptops, and Bluetooth earphones.

Antennas used include short whip antennas, rubber ducky antennas, sleeve. Conferences related to Superconducting microwave devices Back to Top. IEEE/MTT-S International Microwave Symposium (IMS) The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems.

Read "Analysis of slow‐wave propagation in coplanar transmission lines with inkjet printed multiwalled carbon nanotubes network, Microwave and Optical Technology Letters" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.MODELING AND DESIGN OF SUPERCONDUCTING MICROWAVE PASSIVE DEVICES AND INTERCONNECTS by LAURENCE H.

LEE B.S., State University of New York at Buffalo, June conducting planar transmission lines. This method rigorously accounts for the complex culated effective dielectric constants and quality factors for microstrip lines and coplanar.A line drawing of the Internet Archive headquarters building façade.

An illustration of an open book. Books. An illustration of two cells of a film strip. Video Full text of "Coplanar Waveguide Circuits, Components, And Systems" See other formats.