Home » Knowledge Centre

Knowledge Centre

Find a document written by the best international scientists in our secure database.

24787 documents
THE GAIN AND NOISE PERFORMANCE OF LOSSY DISTRIBUTED AMPLIFIERS USING MESFETs
N. Nazoa-Ruiz, C.S. Aitchison
THE GAIN AND NOISE MESFETs PERFORMANCE OF LOSSY DISTRIBUTED AMPLIFIERS USING N. Nazoa-Ruiz* and C.S. Aitchison* ABSTRACT Theoretical gain and noise behaviour of the general case tributed amplifier are presented. The effects of the number used and critical MESFET parameters are highlighted. lossy disof MESFETs
POTENTIAL POWER PERFORMANCES OF THE DISTRIBUTED AMPLIFIERS
P. Gamand, Y. Crosnier, P. Gelin
POTENTIAL POWER PERFORMANCES OF THE DISTRIBUTED AMPLIFIERS P. GAMAND*, Y. CROSNIER*, Ph. GELIN** ABSTRACT: In this paper experimental and theoretical results are presented. These results show that the distributed amplifiers can be used not only for small signal operations but also for high power applications with a very broadband frequency. The results are verified by comparing an analytical
Transmissionline Transformers for High Transformation Ratios
R. Pauli
Transmissionline Transformers for High Transformation Ratios Rainer Pauli )* ABSTRACT: The problem of matching a resistive load to a resistive genera- tor over a wide range of frequencies by means of a stepped im- pedance transformer (SIT) has an explicit optimal solution that is well known.This paper presents a reappraisal of this classical problem under the additional constraint that only
SYNTHESIS OF INHOMOGENEOUS DISTRIBUTED NETWORKS
R. Levy
SYNTHESIS OF INHOMOGENEOUS DISTRIBUTED NETWORKS Ralph Levy* ABSTRACT: Previously published equivalent circuit representations of parallel-coupled lines in an inhomogeneous medium are very complicated, and quite unsuitable for application in distributed filter synthesis. This defect is remedied in this paper by re-synthesizing the circuits in a new and physically meaningful form. The new theory is
SWITCHABLE BAND-STOP FILTER FOR M.I.C.
J.L. Lacombe
SWITCHABLE BAND-STOP FILTER FOR M.I.C. J . L. LACOrv'iBE -- ABSTRACT A switchable filter permits function structure to obtain band-stop using transmission lines switched by according to the bias diode state or a transfer function pseudo all means either pass. of PIN diodes a transfer This switchable filter lines separated by quarter-wave biasing circuits. It is well substrate second A devic
IMAGE PARARAMETER APPROACH TO THE DESIGN OF NON-COMMENSURATE DISTRIBUTED FILTERS FOR MICROWAVE INTEGRATED CIRCUITS
F. Giannini, N. Salerno, R. Sorrentino
IMAGE FILTERS PA RAr.1ET ER APPROACH TO TH E DESIGN OF NON-COMMENSURAT E D ISTRIBUT ED FOR rUCROWAVE INTEGRATED CIRCUITS F . . G lanmnl.. *, f'l. . S a L erno ** , R. Sorrentlno . *** ABSTRACT. The image-parameter method is successfuLLy appLied to the design of non-commensurate distributed Low-pass filters for appLication in microwave integrated circuits. ExtremeLy Low pas
DEVELOPMENTS IN HIGH POWER FILTERS FOR SATELLITE GROUND STATIONS
D.J. Cracknell, M.J. Adams, M.L. Oldham
DEVELOPMENTS IN HIGH POWER FILTERS FOR SATELLITE GROUND STATIONS Cracknell D. J.t Adams M. J., Oldham M. L.* ABSTRACT Two approaches to the requirement for ground station high power channel combining are presented, with brief descriptions of their operating principles and details of their performance. These approaches cater for the differing requirements of an evolving system and one w
MICROWAVE LINEAR PHASE FILTERS
H. Abdalla, P. Jarry
MICROWAVE LINEAR PHASE FILTERS Humberto Abdalla Junior*, P. Jarry** ABSTRACT This work presents an exact method for construction of a new nonmini- mumphase maximally flat transfer function with ideal amplitude pulsation at an arbitrary frequency and linear phase response. This transfer func0 tion is based on a polinomial obtained combining two succesive Bessel poly- nomials. A gene
CHARACTERISTICS OF FINLINES WITH ARBITRARY METALLIZATION STRUCTURE AND ANISOTROPIC MEDIA
A. Beyer, I. Wolff
CHARACTERISTICS OF FINLINES WITH ARBITRARY METALLIZATION ANISOTROPIC MEDIA STRUCTURE AND A. Beyer, and I. Wolff* ABSTRACT In this paper a method is presented for the determination of the propagation properties for the general case of finlines with cross sectional structures. On the one hand this method allows a realistic description of the finlines because it also considers the secondary effec
ANALYSIS OF FIN LINES ON SEMICONDUCTOR SUBSTRATE
A. Abdel Azeim, H. El Hennawy, S. Mahrous
ANALYSIS OF FIN LINES (iN SENICONDUCTOH SUDSTHATE A. Abdel Azeim, H. El Hennawy, S. Mahrous* ADSTHACT Finlines formed on metal insulator semiconductor substrate (MIS) is rigorously analyzed using spectral domain approach (SDA). As in the case of printed transmission lines for monolithic integrated circuits, three fundamental modes are predicated to exist depending on the operating frequenc
0 document

ArtWhere Création de site Internet