David Rutledge (engineer)
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David B. Rutledge (born 1952) is the Kiyo and Eiko Tomiyasu Professor (em.) of Engineering and former chair of th
Division of Engineering and Applied Science
at the
California Institute of Technology The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small group of institutes ...
(Caltech), United States. His earlier work on
microwave Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequency, frequencies between 300&n ...
circuits has been important for various advances in
wireless Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided transm ...
communications and has been useful for applications such as
radar Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...
,
remote sensing Remote sensing is the acquisition of information about an physical object, object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring inform ...
, and satellite broadcasting. He also covers research in estimating fossil-fuel supplies, and the implications for alternative energy sources and climate change.


Education

Rutledge earned his
bachelor's degree A bachelor's degree (from Medieval Latin ''baccalaureus'') or baccalaureate (from Modern Latin ''baccalaureatus'') is an undergraduate degree awarded by colleges and universities upon completion of a course of study lasting three to six years ...
at
Williams College Williams College is a Private college, private liberal arts colleges in the United States, liberal arts college in Williamstown, Massachusetts, United States. It was established as a men's college in 1793 with funds from the estate of Ephraim ...
, his
Master of Arts A Master of Arts ( or ''Artium Magister''; abbreviated MA or AM) is the holder of a master's degree awarded by universities in many countries. The degree is usually contrasted with that of Master of Science. Those admitted to the degree have ...
degree from the
University of Cambridge The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...
, and his
doctorate A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach ...
from
University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a Public university, public Land-grant university, land-grant research university in Berkeley, California, United States. Founded in 1868 and named after t ...
.


Career

He joined the Caltech faculty as an assistant professor in 1980, and rose through the faculty ranks to become the holder of the Tomiyasu chair in 2001. He served as executive officer for electrical engineering from 1999 to 2002 and chair of the Division of Engineering and Applied Science from 2005 to 2008. Rutledge was editor-in-chief of the journal ''
IEEE Transactions on Microwave Theory and Techniques ''IEEE Transactions on Microwave Theory and Techniques'' (T-MTT) is a monthly peer-reviewed scientific journal with a focus on that part of engineering and theory associated with microwave/millimeter-wave technology and components, electronic devi ...
''. He was also a member of Caltech's Lee Center for Advanced Networking, which aimed to create a global communication system that is as reliable and robust as a basic utility. Since 2018 he is a professor emeritus.


Published works

Rutledge is the author of '' Energy: Supply and Demand'', a book published by
Cambridge University Press Cambridge University Press was the university press of the University of Cambridge. Granted a letters patent by King Henry VIII in 1534, it was the oldest university press in the world. Cambridge University Press merged with Cambridge Assessme ...
, December 2019. Focusing on trends in energy supply and demand, this text provides students with a comprehensive account of the subject and an understanding of how to use data analysis and modeling to make future projections and study climate impacts. Developments in technology and policy are discussed in depth, including the role of
coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal i ...
, the
fracking Fracking (also known as hydraulic fracturing, fracing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure inje ...
revolutions for
oil and gas A fossil fuel is a flammable carbon compound- or hydrocarbon-containing material formed naturally in the Earth's crust from the buried remains of prehistoric organisms (animals, plants or microplanktons), a process that occurs within geologi ...
, the
electricity grid An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers. Electrical grids consist of power stations, electrical substations to step voltage up or down, electric power trans ...
, wind and
solar power Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power. Solar panels use the photovoltaic effect to c ...
,
battery storage A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy. Batte ...
, and
biofuels Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels such as oil. Biofuel can be produced from plants or from agricultural, domestic ...
. Trends in demand are also detailed, with analysis of industrial demands such as LEDs, air conditioning, heat pumps, and information technology, and the transportation demands of railroads, ships, and cars (including
electric vehicles An electric vehicle (EV) is a motor vehicle whose propulsion is powered fully or mostly by electricity. EVs encompass a wide range of transportation modes, including road vehicle, road and rail vehicles, electric boats and Submersible, submer ...
). The environmental impacts of the energy industry are considered throughout, and a full chapter is dedicated to climate change. Real-life case studies and examples add context. Rutledge is also the author of ''The Electronics of Radio'', a book published by
Cambridge University Press Cambridge University Press was the university press of the University of Cambridge. Granted a letters patent by King Henry VIII in 1534, it was the oldest university press in the world. Cambridge University Press merged with Cambridge Assessme ...
, as well as author or co-author of numerous other publications. This book provides an introduction to
analog electronics Analogue electronics () are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term ''analogue'' describes the proportional relationship between a signal ...
by analyzing the design and construction of a radio
transceiver In radio communication, a transceiver is an electronic device which is a combination of a radio ''trans''mitter and a re''ceiver'', hence the name. It can both transmit and receive radio waves using an antenna, for communication purposes. The ...
. Essential theoretical background is provided at each step, along with carefully designed laboratory and homework exercises. The goal of this approach is to ensure a good grasp of basic electronics as well as an excellent foundation in wireless communications systems. The book begins with a thorough description of basic electronic components and simple circuits. Next, the key elements of radio electronics, including
filters Filtration is a physical process that separates solid matter and fluid from a mixture. Filter, filtering, filters or filtration may also refer to: Science and technology Computing * Filter (higher-order function), in functional programming * Fil ...
,
amplifier An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power su ...
s,
oscillators Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...
, mixers, and
antennas In radio-frequency engineering, an antenna (American English) or aerial (British English) is an electronic device that converts an alternating electric current into radio waves (transmitting), or radio waves into an electric current (receivi ...
are described. In the laboratory exercises, the reader is led through the design, construction, and testing of a popular radio transceiver (the NorCal 40A), thereby illustrating and reinforcing the theoretical material. This book, the first to deal with elementary electronics in the context of radio, is often used as a textbook for introductory analog electronics courses, or for more advanced undergraduate classes on
radio frequency Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the u ...
electronics. It may also be of interest to electronics hobbyists and radio enthusiasts.


Honors and activities

*
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office ...
Millennium Medal * Doug DeMaw Award of the
American Radio Relay League The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of ...
*
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
Presidential Investigator Award *
Japan Society for the Promotion of Science The is an Independent Administrative Institution in Japan, established for the purpose of contributing to the advancement of science in all fields of the natural and social sciences and the humanities.JSPSweb page History The Japan Society f ...
Fellowship * Distinguished Lecturer,
IEEE Antennas & Propagation Society The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office i ...
* Microwave Prize,
IEEE Microwave Theory and Techniques Society The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office i ...
* Distinguished Educator Award, IEEE Microwave Theory and Techniques Society * Fellow, Institute of Electrical and Electronics Engineers * Teaching Award, Associated Students of Caltech * Co-founder of th
Wavestream Corporation
a company that produces solid-state microwave and
millimeter-wave Extremely high frequency (EHF) is the International Telecommunication Union designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz (GHz). It is in the microwave part of the radio spectrum, between t ...
transmitters * Six of Professor Rutledge's students have won Presidential Investigator and Career Awards * Author of the electronics textbook, ''The Electronics of Radio'' * Co-author of the microwave
computer-aided design Computer-aided design (CAD) is the use of computers (or ) to aid in the creation, modification, analysis, or optimization of a design. This software is used to increase the productivity of the designer, improve the quality of design, improve c ...
software package, Puf

which has distributed over 30,000 copies.


References


External links


David B. Rutledge at the Caltech Division of Engineering and Applied Science
{{DEFAULTSORT:Rutledge, David Living people 1952 births 21st-century American engineers California Institute of Technology faculty