Journal ArticleDOI
Radiation characteristics of a corrugated circular cylindrical waveguide horn excited in the TE/sub 11/ mode
M. Narasimhan,K.R. Govind +1 more
TLDR
In this paper, the design and experimental studies on a corrugated circular cyclindrical waveguide antenna that is feed-excited in the TE/sub 11/mode with suppressed far-out sidelobes are reported.Abstract:
The design and experimental studies on a corrugated circular cyclindrical waveguide antenna that is feed-excited in the TE/sub 11/ mode with suppressed far-out sidelobes are reported. To reduce the spillover in the region 90 degrees >read more
Citations
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Journal ArticleDOI
Modal Analysis of All-Walls Longitudinally Corrugated Rectangular Waveguides Using Asymptotic Corrugations Boundary Conditions
TL;DR: In this paper, asymptotic corrugations boundary conditions (ACBCs) are used together with classical theory of vector potentials and an innovative combination of matrix systems to analyze rectangular waveguides having all four walls being longitudinally (axially) corrugated.
Journal ArticleDOI
Front-to-back ratio of paraboloidal reflectors
M. Narasimhan,K.R. Govind +1 more
TL;DR: In this paper, the authors used the field correlation theorem to determine the power coupled by a prime focus feed associated with a paraboloid which is being illuminated by a uniform plane wave, and computed the front-to-back ratio of unflanged and flanged paraboloids.
DissertationDOI
Gravitational lenses & conical feedhorns
TL;DR: Torchinsky et al. as mentioned in this paper used a single pixel bolometer system on the James Clerk Maxwell Telescope and measured an upper limit on CBR anisotropy of ∆T/T < 4.6× 10−3 towards the cluster Cl 2244−02 at the angular scale of 5′′.
Proceedings ArticleDOI
Microwave energy harvesting using rectangular micro-strip patch array antenna
TL;DR: The first objective was to use the advantage of the pipeline considered as a circular waveguide to design arrays of rectangular patch micro-strip antennas could collect all the microwave energy propagated inside oil pipeline with RF-DC converter circuit a high efficiency.