Results 251 to 260 of about 11,419 (301)

Quarter-Wave Corrugated Transformer for Broadband Matching of a Corrugated Feed

AT&T Bell Laboratories Technical Journal, 1984
This paper describes a broadband technique for obtaining the transformation TE 11 → HE 11 at the input of a corrugated feed. Usually, this transformation is obtained by operating the feed in the vicinity of a frequency, coi, corresponding to one of the zeroes of the input surface reactance since the feed input reflection, ρ t vanishes at ω 1 .
Corrado Dragone, W. E. Legg
openaire   +2 more sources

Corrugated conical horns with arbitrary corrugation depth

Radio and Electronic Engineer, 1973
The form of fields in a conical horn with uniform circumferential corrugations, when the corrugation depth assumes arbitrary values in the interval 0.25 ≦ (h/γo0) ≦ 0.5 is investigated in this paper. Assuming the corrugations to be infinitely thin and sufficiently close-packed, an impedance boundary condition is imposed on the fields in the axial ...
openaire   +1 more source

Analysis of propagation in corrugated waveguides of arbitrary corrugation profile

IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010), 2003
The propagation constants of Floquet modes in corrugated circular waveguides with continuous corrugation profiles were determined from a formulation leading to a canonical matrix eigenvalue equation. The approach is validated by comparison to available data for the dispersion relation of TM/sub 0(n)/ modes in a sinusoidally corrugated waveguide ...
S. Amari, R. Vahldieck, J. Bornemann
openaire   +1 more source

Properties of cutoff corrugated surfaces for corrugated horn design

IEEE Transactions on Antennas and Propagation, 1974
Corrugated horns involve a junction between the corrugated surface and a conducting groundplane. Proper horn design requires an understanding of the electromagnetic properties of the corrugated surface and this junction. An integral equation solution has been used to study the influence of corrugation density and tooth thickness on the power loss ...
C. Mentzer, L. Peters
openaire   +1 more source

OPTIMIZATION OF CORRUGATION PATTERN ON CORRUGATED SHELLS

Journal of Structural Engineering B, 2022
Kentarou DOI, Kenji YAMAMOTO
openaire   +1 more source

A corrugated horn antenna using V-shape corrugations

IEEE Transactions on Antennas and Propagation, 1975
Corrugated horns use corrugations on the E -plane walls that are operating in the cutoff condition. In this paper, attention is focussed on replacing the rectangular shaped corrugation with a V-shaped corrugation. The properties of the V corrugations are obtained using an integral equation solution; the results of the computational studies indicate ...
C. Mentzer, L. Peters, F. Beck
openaire   +1 more source

Simulation of corrugated horns and exciters for circular corrugated waveguides

Journal of Communications Technology and Electronics, 2006
A method is proposed for simulating the problem of radiation from a finite-length corrugated horn joined with a regular corrugated waveguide. Obtained with the help of the factorization method, a solution to the problem of radiation from the open end of a circular waveguide is applied to formulate the conditions of radiation from the horn.
openaire   +1 more source

OPTIMIZATION OF CORRUGATION PATTERN ON CORRUGATED SHELLS

Journal of Structural Engineering B, 2023
Kentarou DOI, Kenji YAMAMOTO
openaire   +1 more source

Corrugations

Scottish Affairs, 2022
openaire   +1 more source

Sagging of corrugated diaphragms with a cylindrical edge corrugation

Measurement Techniques, 1970
V. I. Bystrova, P. P. Kremlevskii
openaire   +1 more source