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Akademický článek
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Autor:
S.B. Cohn
Publikováno v:
MTT-S International Microwave Symposium Digest.
Comb-line band-pass filters have previously been synthesized as circuits having equal-length short-circuited and open-circuited TEM lines. Practical designs, however, usually use almost-lumped capacitors. This paper presents an exact synthesis method
Autor:
S.B. Cohn
Publikováno v:
G-MTT Symposium Digest.
Dielectric objects with free-space boundaries have for many years been known to exhibit resonances in various modes. Since practical applications of this phenomenon in microwave filters have not been made, a study program was instituted to explore th
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 32:1055-1067
An account of the development of microwave filters is surveyed, commencing from 1937. Much of the foundation of modem filter theory and practice took place during the period of World War II and the years immediately following, especially by such pion
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 32:1046-1054
After Hertz verified Maxwell's electromagnetic wave theory using a spark-gap microwave source, activity in the microwave range was negligible until about 1930, and quite limited until 1939. In that year, an explosion of activity commenced, motivated
Autor:
S.B. Cohn
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 11:254-258
A new type of parallel-coupled TEM-mode cross section is described and named the re-entrant cross section. An analysis of the even- and odd-mode characteristic impedances of the re-entrant cross section shows it to have advantages in the case of tigh
Autor:
S.B. Cohn
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 8:638-644
Capacitive thickness corrections are derived exactly for two basic geometries involving pairs of semi-infinite plates. In one arrangement the pair of plates are coplanar, while in the other they are parallel to each other. In each case the total capa
Autor:
D.A. Fleri, S.B. Cohn, R. Tsu, S. C. Brown, P. H. Vartanian, E. M. T. Jones, J. C. Wiltse, R.D. Wanselow, D.J. Lewis, H.L. Bachman, R.H. Kingston, H.N. Chait, J.K. Shimizu, F.R. Morgenthaler, W. P. Ayres, J. L. Melchor, W.E. Bell, L.B. Felsen, S.J. Tetenbaum, R.M. Hill, H. Kirschbaum, F.J. O'Hara, R.S. Mangiaracina, H. Scharfman, G.L. Hanley, V.G. Price, A. Bloom, J.F. Cline, Leo Young, R.G. Williams, P. D. Coleman, E. N. Torgow, W.K. Kahn, L.P. Tuttle, B.M. Schiffman, H. A. Wheeler, G. S. Uebele, H. Heffner, E. Stern, C.M. Johnson, A.A. Oliner, L. Levey, W. Rotman, N.G. Sakiotis, R.C. Becker
Publikováno v:
IRE Transactions on Microwave Theory and Techniques. 7:181-186
Autor:
S.B. Cohn
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 3:29-38
An analysis is made of the odd and even TEM modes on a pair of parallel co-planar strips midway between ground planes. Rigorous formulas are presented for the case of zero-thickness strips, while approximate formulas are given for strips of finite th