Results 231 to 240 of about 5,311 (260)
Some of the next articles are maybe not open access.
1987
This chapter discusses the following circular waveguide devices: longitudinally magnetised rotator; Faraday rotation circulator; isolator and circular polariser; circumferentially magnetised ferrite tube (latching phase changer); variable attenuator; quarter-wave plate; and half-wave plate.
openaire +1 more source
This chapter discusses the following circular waveguide devices: longitudinally magnetised rotator; Faraday rotation circulator; isolator and circular polariser; circumferentially magnetised ferrite tube (latching phase changer); variable attenuator; quarter-wave plate; and half-wave plate.
openaire +1 more source
Birefringence of Ferrites in Circular Waveguide
Proceedings of the IRE, 1956The objective of this study was to measure the birefringence of different ferrite configurations in circular waveguide. Large differential phase shifts relatively independent of frequency have been obtained with low external magnetic fields. A half-wave plate requiring an external magnetic field of 210 oersteds has been designed with a conversion loss ...
N. Karayianis, J. Cacheris
openaire +1 more source
Mode Conversion in Circular Waveguides
Bell System Technical Journal, 1965Mode conversion from TE 11 to TM 11 modes in circular waveguides is investigated. It is found that an iris placed across the waveguide or an abrupt change in guide radius (step) will produce a wide range of mode conversion coefficients which can be used in most dual-mode feedhorn applications.
E. R. Nagelberg, J. Shefer
openaire +1 more source
Corrugated circular waveguide applicator
International Journal of Electronics, 1978A new corrugated circular applicator with a uniform power density distribution over the cross section is described.
openaire +1 more source
On Chirality Measurements in Circular Waveguides
1997Until now, only free space setups were applied to measure the three scalar constitutive parameters of chiral materials. In principle, the inversion procedure to extract the constitutive parameters from measured scattering data is very simple [1]. But, in practice, difficulties concerning the generation of plane waves, the high accuracy demands, and the
G. Busse +3 more
openaire +1 more source
Step-Index Circular Waveguides
2003The circular waveguide has found extensive use in optical communications systems, especially long distance communication links. The circular waveguide has no intrinsic advantage over rectangular waveguides except in one critical area: cost. Manufacturing circular waveguides from glass is a well established technology.
Clifford R. Pollock, Michal Lipson
openaire +1 more source
Wave Propagation in Circular Waveguides
1971Waveguides with other than rectangular cross-sections, such as circular ones, are sometimes used. The wave equations can then be solved with their own particular boundary conditions along the same lines we have described above for rectangular guides, by separating the variables and resolving the wave into elementary modes.
openaire +1 more source