Zobrazeno 1 - 10
of 60
pro vyhledávání: '"K.B. Niclas"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 38:1692-1700
An analysis of the linear power distribution in amplifiers employing the additive amplification principle has been made. It reveals the wide spread of the active devices' contributions to the output power at any one frequency and exposes the band-sha
Autor:
K.B. Niclas
Publikováno v:
MTT-S International Microwave Symposium Digest.
Design and fabrication of compact multi-stage single-ended feedback amplifiers operating from 2- 8 GHz are discussed. The nominal gains are 22 dB in the three-stage unit and 30 dB in the four-stage unit. Measured maximum VSWR's do not exceed 1.9:1. N
Autor:
K.B. Niclas
Publikováno v:
MTT-S International Microwave Symposium Digest.
The performance of multi-stage single-ended GaAs MESFET amplifiers are compared when employing one and the same transistor type. Supporting experimental results include those of a 3-17.5 GHz reflective match module, a two-stage 2-18 GHz feedback ampl
Autor:
K.B. Niclas, W.T. Wilser
Publikováno v:
MTT-S International Microwave Symposium Digest.
A 2-12 GHz monolithic feedback amplifier has been designed. Initial experiments, made on a semi-monolithic unit, yielded 5.4 dB of minimum gain from 2-12 GHz and 3.8 dB of minimum gain between 2 and 15.3 GHz.
Publikováno v:
Digest of Papers.,Microwave and Millimeter-Wave Monolithic Circuits Symposium.
An amplifier that utilizes eight MESFETs that are evenly distributed over two tiers is considered. A brief description is presented of the circuit design and its fabrication. Among the test results measured for the experimental monolithic matrix ampl
Autor:
K.B. Niclas, R.R. Pereira
Publikováno v:
IEEE MTT-S International Microwave Symposium Digest.
The performance of two-tier matrix amplifiers optimized for best noise figure across the 2-18-GHz band is discussed. Previous efforts resulted in degradation of other performance parameters, especially for ultra wideband operation. The present approa
Autor:
Y.L. Chow, M.E. Read, Phillip Sprangle, T.K. Seshadri, W.T. Wilser, G.A. Juravlev, B.N. Das, M. Miyagi, W.R. Hitchens, F.L. Cain, Kai Chang, V.V. Cherny, J.R. Wait, S. Nishida, R.B. Gold, D.A. Hill, M.H. Keriakos, Kwo Ray Chu, S. Mahapatra, K.K. Joshi, R.H. MacPhie, R.A. Kiehl, E.M. Bastida, A.S. Podgorski, J. Seals, A. K. Ganguly, R. Levy, A.T. Drobot, O. Kitazawa, G. Saulich, K.B. Niclas, Wei-gan Lin, K. Rajaiah, E.C. Burdette, M. Suzuki, John R. Whinnery, Y. Hayashi, M.I. Sobhy, H. H. Szu, Ming Hui Chen, R.L. Ebert
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 28:435-440
Autor:
K.B. Niclas, R.R. Pereira
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 37:1069-1077
A 3*3 matrix amplifier for the 6-18-GHz frequency band has been developed. Using MESFETs fabricated on VPE (vapor-phase epitaxial) material, gains of G=23.5+or-0.5 dB with a maximum reflection loss of RL=-10 dB were obtained from 5.2 to 18.7 GHz. Gai
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 31:447-456
The performance characteristics of n-link distributed amplifiers employing GaAs MESFET'S are studied. At first, formulas of tie symmetrical amplifier using lumped circuit elements are developed for the case of an idealized FET model. The theoretical
Autor:
K.B. Niclas
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 32:896-908
The computed performances of multi-stage single-ended GaAs MESFET amplifiers are compared when employing one and the same transistor type. The circuit principles studied are of the reflective match the Iossy match, the feedback, the distributed, and