S.A.W. bandpass filter with ?50 dB sidelobes using unweighted i.d.t.s

The use of a resonantly loaded i.d.t. (r.l.i.d.t.) as an s.a.w. track changer in bandpass filter design is described. A filter with 3dB fractional bandwidth (f.b.w.) of 11.5% and ?50 dB sidelobes is realised using unweighted input/output i.d.t.s of 5? finger pairs each and a 7? finger pair r.l.i.d.t. as the s.a.w. track changer. The scheme is expected to be useful in realising low-shape-factor low-sidelobe bandpass filters using relatively short i.d.t.s.     

X-ray metrology for high-k atomic layer deposited HfxZr1−xO2 films

Hafnium-based dielectrics are the most promising material for SiO₂ replacement in future nodes of CMOS technology. While devices that utilize HfO₂ gate dielectrics suffer from lower carrier mobility and degraded reliability, our group has recently reported improved device characteristics with a modified Hf_xZr_1−xO₂ [R.I. Hegde, D.H. Triyoso, P.J. Tobin, S. Kalpat, M.E. Ramon, H.-H. Tseng, J.K. Schaeffer, E. Luckowski, W.J. Taylor, C.C. Capasso, D.C. Gilmer, M. Moosa, A. Haggag, M. Raymond, D. Roan, J. Nguyen, L.B. La, E. Hebert, R. Cotton, X.-D. Wang, S. Zollner, R. Gregory, D. Werho, R.S. Rai, L. Fonseca, M. Stoker, C. Tracy, B.W. Chan, Y.H. Chiu, B.E. White, Jr., in: Technical Digest - International Electron Devices Meet, vol. 39, 2005, D.H. Triyoso, R.I. Hegde, J.K. Schaeffer, D. Roan, P.J. Tobin, S.B. Samavedam, B.E. White, Jr., R. Gregory, X.-D. Wang, Appl. Phys. Lett. 88 (2006) 222901]. These results have lead to evaluation of X-ray reflectivity (XRR) for monitoring high-k film thickness and control of Zr addition to HfO₂ using measured film density. In addition, a combination of XRR and spectroscopic ellipsometry (SE) is shown to be a fast and non-intrusive method to monitor thickness of interfacial layer between high-k and the Si substrate.     

BOOK REVIEWS AND NOTES

Book reviewed in this article:
E mployee P ublications . By William C. Halley.
E ffective C ommunication in C ompany P ublications . By C. J. Dover.
B riefing and C onference T echniques . By Glenn M. Loney.
T he L anguage of P sychology . By George Mandler and William Kessen.
T he B ases of S peech . (Third Edition.) By Giles Wilkeson Gray and Claude Merton Wise.
R oots for a N ew R hetoric . By Daniel Fogarty, S.J.
W ords and T hings . By Roger Brown.
P utting W ords in T heir P laces . By Doris B. Garey.
O ur L anguage and O ur W orld . (Text Edition.) By S. I. Hayakawa. (Editor.)
S tudent and S ociety —R eadings for C ollege E nglish . By George P. Clark and A. Dwight Culler. (Editors.)
C ontroversy : R eadings to S timulate T hought and D iscussion . By Randall W. Hoffman and Robert Plutchik. (Editors.)
C ollege R eading M anual . By Phillip B. Shaw and Agatha Townsend.
S upervisory and E xecutive D evelopment : A M anual for R ole P laying . By Norman R. F. Maier, Allen R. Solem, and Ayesha A. Maier.
C ritical W riting for T he J ournalist . By Roland E. Wolseley.     

Enhancement-mode GaAs m.o.s.f.e.t. on semi-insulating substrate using a self-aligned gate technique

A self-aligned gate notched channel GaAs m.o.s.f.e.t. structure on semi-insulating substrate is presented. Device operation is mainly in enhancement mode. The transconductance is comparable to enhancement-mode m.e.s.f.e.t.s, j.f.e.t.s and s.i.g.f.e.t.s; however, the output-current capability is essentially increased.     

Feasibility of using digital filters to interconnect p.c.m. and f.d.m. transmission systems

A time-division multiplex (t.d.m.) and a frequency-division multiple (f.d.m.) system may be interconnected by means of gates and lowpass filters. The use of digital filters (d.f.s) for this purpose appears attractive when the t.d.m. system uses pulse-code modulation (p.c.m.), because digital-analogue and analogue-digital conversion are unnecessary at the interface between the d.f. and the p.c.m. system. The problems involved in applying d.f.s in this application are discussed. It is concluded that the interconnection of p.c.m. systems with f.d.m. systems using quite low carrier frequencies requires the development of digital circuits operating at several hundred megahertz.     

BOOK REVIEWS

Book reviewed in this articles:
L anguage , T hought, and C ulture . Edited by Paul Henle.
E nter : the C omics . Translated and edited by E. Wiese.
I ntroductory L anguage E ssays . Edited by Dudley W. Bailey of the University of Nebraska.
C lassics in S emantics . By Donald E. Hayden and E. P. Alworth.
I ntroductory R eadings on L anguage (revised edition). Wallace L. Anderson and Norman C. Stageberg, of the State College of Iowa.
E conomic K knowledge and C omprehension in a N etherlands F arming C ommunity . By H. H. Felstehausen
T eaching E nglish as a S econd L anguage . By Harold B. Allen.
W orking W ith the L atin A merican P ress . By James W. Carty, Jr.
C ourse in G eneral L inguistics . By Ferdinand de Saussure
T he I nternational H andbook of G roup P sychotherapy . Edited by J. L. Moreno.
F ive I naugural L ectures . Edited by P. D. Strevens.     

BOOK REVIEWS

Book reviewed in this articles: Principles of Rhetoric . By Richard E. Hughes and P. Albert Duhamel. The Complete Stylist . By Sheridan Baker. The Writer's Manual : The Grammar and Mechanics of the English Language . By Archibald Jordan. Language , Rhetoric, and Style . By Phillip Damon, John Espey, and Frederick Mulhauser. Writing By Patterns . By Helen E. Lefevre and Carl A. Lefevre. Public Speaking . By George W. Fluharty and Harold R. Ross. You Don't Say : Studies of Modern American Inhibitions . By Benjamin DeMott. The Ill -Spoken Word : The Decline of Speech in America . By Leonard A. Stevens with an introduction by Ralph G. Nichols. Public Speaking : A Rhetorical Perspective . By Jane Blankenship of Mount Holyoke College The Art of successful Communication : Business and Personal Achievement Through Written Communication . By Norman G. Shidle. This Is Reading . By Frank G. Jennings. Perspectives on persuasion . By Wallace C. Fotheringham. Perspectives on Argumentation . Edited by Gerald R. Miller The Mass Media and Modern Society . By Theodore Peterson and Jay W. Jensen, of the University of Illinois, and William L. Rivers, of Stanford University. Personal and Organizational Change Through Group Methods : The Laboratory Approach . By Edgar H. Schein and Warren G. Bennis. Group Problem -Solving Through Discussion . By William S. Smith Report Writing (fourth edition). By Harold F. Graves and Lyne S. S. Hoffman. Report Writing for Business (revised edition). By Raymond V. Lesikar. Communication in the Business Organization . By William Scholz The Penguin Dictionary of English . Compiled by G. N. Garmonsway with Jacqueline Simpson. Clinical Aspects of Remedial Reading . By Clifford J. Kolson, State University College in Potsdam, New York, and George Kaluger, Shippensburg State College in Pennsylvania. Culture in American Education . By Ruth Landes. Freedom and Communications . By Dan Lacy. Introduction to the Field of Speech . Ronald F. Reid Contemporary Controversy : Readings for Composition and Discussion . By Morris Freedman and Paul B. Davis Speech Preparation Sourcebook . By Robert T. Oliver, Carroll C. Arnold, and Eugene E. White, Pennsylvania State University. The Conduct of Inquiry . By Abraham Kaplan. Signal Detection and Recognition by Human Observers . Contemporary readings edited by John A. Swets. Character and Crisis : A Contemporary Reader . Edited by Philip Levine, of Fresno State College, and Henri Coulette, of California State College at Los Angeles. Written Communications for Business Administrators . By Robert D. Hay.     

Reply to 'Comment on "Enlarged cells for the conformal FDTD method to avoid the time step reduction"'

For original article by T. Xiao and Q.H. Liu see ibid., vol.14, no.12, p.551-3, Dec. 2004. For comments by R. Schuhmann, I.A. Zagorodnov and T. Weiland see ibid., vol.16, no.1, p.55, Jan. 2006.     

GaAs power f.e.t.s with semi-insulated gates

GaAs semi-insulated-gate f.e.t.s (s.i.g.f.e.t.s) have been fabricated by Ar+ bombardment in the gate region. The d c. characteristics and microwave performance are compared with those of conventional power m.e.s.f.e.t.s fabricated from the same slice. Up to 2.9W output power with 4dB gain has been obtained from s.i.g.f.e.t. devices at 8 GHz.     

Some results for an r.f.- and p.l.-modulated incoherent carrier

Possibilities of using incoherent carriers, amplitude-modulated by the message-modulated p.f.m., r.f.m. and p.l.m. have been investigated. It has been shown that, for noise bandwidths much smaller than the transmission bandwidth, efficient communication is possible, and s.n.r.s of 50?60dB are obtained for practical p.f.m.-a.m. and r.f.m.-a.m. systems. Some comparisons are also given.     

BOOK REVIEWS AND NOTES

Book reviewed in this article:
P sychopathology of C ommunication . By Paul H. Hoch and Joseph Zubin. (Editors.)
T he S tudy of L eadership . By C. G. Browne and Thomas S. Cohn. (Editors.)
M echanics of E nglish . By R. G. Lowery, Charles Moorman, and Robert Barnes.
on A ssignment : R eading and W riting . By Herbert Hackett and William Baker.
C urrent T hinking and W riting . (Fourth Series.) By James M. Bachelor, Ralph L. Henry, and Rachel Salisbury. (Editors).
T echnical R eporting . (Revised Edition.) By Joseph N. Ulman, Jr., and Jay R. Gould.
B etter R eport W riting . By Willis H. Waldo.
T echnical E diting . By B. H. Weil. (Editor.)
L anguage : A n E nquiry into its M eaning and F unction . By Ruth Nanda Anshen (Editor).
T heart of L istening . By Dominick A. Barbara.
H uman R elations in B usiness . By Keith Davis.
E ssays on L anguage and U sage . By Leonard F. Dean and Kenneth G. Wilson. (Editors.)
T he W riter's R esource B ook . (Revised Edition.) By John Gerber. (Editor.)
T he F low of I nformation . By Melvin L. DeFleur and Otto N. Larsen.
T he M ass C ommunicators . By Charles S. Steinberg.
T he S tatus S eekers . By Vance Packard.     

BOOK REVIEWS AND NOTES

R obert H aakenson , Editor D ictionaries and T hat D ictionary . By James Sledd and Wilma R. Ebbitt.
T he L anguage of the L aw . By David Mellinkoff.
N ew D evelopments in P rograms and P rocedures for C ollege -A dult R eading . Edited by Ralph C. Staiger and Culbreth Y. Melton.
D ynamic S peaking . By Martin Bryan, Ph.D.
M ethods and M eans of P ublic S peaking . By William S. Smith and Donald J. Canty.
F our T heories of the P ress . By Fred S. Siebert, Theodore Peterson, and Wilbur Schramm.
U nderstanding M edia : T he E xtensions of M an . By Marshall McLuhan.
T he A rt of P ersuasion in G reece . By George Kennedy.
C ommunicative S peech . By Robert T. Oliver, Harold P. Zelko, and Paul D. Holtzman.
F our in D epth . By Ken Macrorie.
L anguage and L ogic . By Milos Prazak.
K ant 'S I ntroduction to L ogic . Translated by Thomas Kingsmill Abbott, B. D.
L anguage and P hilosophy . By Mikel Dufrenne. Translated by Henry B. Veatch.
GUIDE TO AMERICAN ENGLISH. By L. M. Myers.     

V-shaped-gate GaAs m.e.s.f.e.t. for improved high-frequency performance

The idea of gate shaping in f.e.t.s was implemented into the GaAs-m.e.s.f.e.t. structure. A m.e.s.f.e.t. with 2 ?m gate length was fabricated, the measured m.a.g. data of which allow an extrapolation to an fmax of about 45 GHz.     

REVIEWS

Book reviewed in this article:
power of words . By Stuart Chase.
understanding grammar . By Paul Roberts.
essays on thinxing and writing . By W. Paul Jones.
current trends in information theory . By Brockway McMillan and others.
communciation and persuasion: psychological studies of opinion change . By Carl I. Hovland, Irving L. Janis, and Harold H. Kelley.
annual review of psychology . Edited by Calvin P. Stone and Quinn McNemar.
the living brain . By W. Grey Walter.     

Circuit model for the GaAs m.e.s.f.e.t. valid to 12 GHz

A new equivalent circuit is given for the GaAs m.e.s.f.e.t., which includes resistive loss in the feed back elements. The circuit values are given for several 1 ?m-gate GaAs m.e.s.f.e.t.s. A method for fitting s12 to the measured data is described. Finally, the gain and stability factor of several GaAs m.e.s.f.e.t.s. are extrapolated to 24 GHz from the present model.     

BOOK REVIEWS AND NOTES

Book reviewed in this articles:
C ausality . By Mario Bunge.
T he P rocess of C ommunication . By David K. Berlo.
I ntroduction to M ass C ommunication . By Edwin Emery, Phillip H. Ault, and Warren K. Agee.
T he O pen and C losed M ind . By Milton Rokeach.
A natomy and P hysiology of S peech . By Harold M. Kaplan.
M an and O rganization . By William Foote Whyte.
P ractical S peech F undamentals . By Eugene E. White.
I mproving Y our V oice . By John Grasham and Glenn Gooder.
S peech for E veryday U se . (Revised Edition.) By Elizabeth G. Andersch and Lorin C. Staats.
G uide to G ood S peech . (Second Edition.) By James H. McBurney and Ernest J. Wrage.
T he P sychological R eport . By Walter G. Klopfer.
A merican F orum : S peeches on H istoric I ssues , 1788–1900. By Ernest J. Wrage and Barnet Baskerville. (Editors.)
S mall -G roup D iscussion in O rientation and T eaching . By Randall W. Hoffmann and Robert Plutchik.     

REVIEWS

Book reviewed in this article:
the truth about your child's reading . By Sam Duker and Thomas NaIly.
magazines in the united states , 2nd Edition. By James Playsted Wood.
communication: handling ideas effectively . By Roy Ivan Johnson, Marie Schalekamp, and Lloyd A. Garrison.
college english: the first year . By J. Hooper Wise, J. E. Congleton, Alton C. Morris, and John C. Hodges.
intormation theory in psychology . By Henry Quastler, editor.
logic and language . By Bernard F. Huppe and Jack Kaminsky.
guides to straight thinking . By Stuart Chase.
a concise dictionary of english slang . By William Freeman.
United States Air Force Dictionary, ed. W. A. Heflin
present-day psychology . By A. A. Roback     

BOOK REVIEWS

Book reviewed in this articles:
P ress P hotography . By Robert B. Rhode and Floyd H. McCall.
I ntroduction to P hotography . By Robert B. Rhode and Floyd H. McCall.
T he A ct of W riting and R eading : A C ombined T ext . By Alan Casty, of Santa Monica City College.
W riting by P atterns . By Helen E. Lefevre, of Chicago City Junior College, and Carl A. Lefevre, of Chicago Teachers College.
A natomy of W riting . By Peter Swiggart, of Brandeis University.
A n I ndex or I deas for W riters and S peakers . By Zebulon Vance Hooker II, of Roanoke College.
M r . J ustice M urphy and the B ill of R ights . By Harold Norris, of the Detroit College of Law.
M ental H ealth B ook R eview I ndex , Volume 10, 1965. Compiled by the Editorial Committee and Contributing Librarians.
L anguages of the M ass M edia : R eadings in A nalysis . Edited by Irving and Harriet Deer, Dickinson State College.
H ow to C ommunicate O rally . By Glenn R. Capp, of Baylor University.
D ocumentary in A merican T elevision . By A. William Bluem.
T he T echnique of the T elevision C ameraman . By Peter Jones.
W ho's W ho in the H istory of P hilosophy . By Thomas Kiernan.
E ssays for C ollege W riting . By A.J.M. Smith.
E ssentials of G rammar and S tyle . By John I. McCollum, Jr.
M ental H ealth B ook R eview , I ndex , Vol. 11, 1966.
D ynamics of R esponse . By Joseph M. Nottennan and Donald E. Mintz.
I mprovement of T eaching by T elevision . Edited by Barton L. Griffith and Donald W. MacLennan.
N eurolocical O rganization and R eading . By Carl H. Delacato.
A R eader for W riters . By Jerome W. Archer, of Arizona State University, and Joseph Schwartz, of Marquette University.
A G lossary for C ollege E nglish . By Martin Stevens, of Ohio State University, and Charles H. Kegel, of Idaho State University.     

Noise behaviour of the m.o.s.f.e.t. at v.h.f. and u.h.f.

The optimum noise figures of an m.o.s.f.e.t. at u.h.f. and at pinch-off are calculated using a simplified equivalent circuit. The noise parameters are also determined experimentally. Theory and experiment are shown to be in good agreement. Noise parameters of the m.o.s.f.e.t. for the frequency range 0.1?0.8 GHz are given.     

Book Reviews

Book reviewed in this article:
Power—and the Courage to be Free by Hanno Hardt
Cable Television and the FCC: A Crisis in Media Control by Don R. LeDuc.
The Media in America by John Tebbel.
Popular Images of Politics by Dan D. Nimmo.
The Study of Social Dialects in American English by Walt Wolfram and Ralph W. Fasold.
Gaming: The Future's Language by Richard Duke.
Auding and Reading: A Development Model by Thomas G. Sticht, Lawrence J. Beck, Robert N. Hauke, Glenn M. Kleiman, and James H. James.
Radio and Television Broadcasting in Eastern Europe by Burton Paulu.
Paralanguage and Kinesics by Mary Ritchie Key.
Sociolinguistics: A Crossdisciplinary Perspective edited by Roger W. Shuy.
The Mass Media: Aspects of Modern Sociology by Peter Golding.
Human Communication Handbook: Simulations and Games by Brent D. Ruben and Richard W. Budd.
Vienna Broadcasts to Slooakia 1938–1939: A Case Study in Subversion by Henry Delfiner.
Teaching Reading in the Secondary School by Wilma H. Miller.
Mass Media in America by Don R. Pember.
Communication and Behavior edited by Gerhard J. Hanneman and William J. McEwen.
Film Language: A Semiotics of the Cinema by Christian Metz. Translated by Michael Taylor.
Communication Behavior and Experiments: A Scientific Approach by R. Wayne Pace, Robert R. Boren, and Brent D. Peterson.
How Adults Learn by J. R. Kidd.
How to Read Donald Duck: Imperialist Ideology in the Disney Comic by Ariel Dorfman and Armand Mattelart. Translation from the Spanish version, first published in 1971, and introduction by David Kunzle.