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Derive improved analytical expressions for the electromagnetic scattering and gap reactance of a round metal post with a gap located inside a waveguide.

May 1, 1973IEEE Transactions on Microwave Theory and Techniques

Scattering from a Round Metal Post and Gap

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JBJ A BradshawGeneral Electric (United States)

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Implication

Theoretical modeling demonstrates refined scattering and gap reactance formulations for slotted metal posts in waveguides, highlighting improved accuracy over classic handbook benchmarks.

Key Points

Derive improved analytical expressions for the electromagnetic scattering and gap reactance of a round metal post with a gap located inside a waveguide.
Formulated a pair of variational expressions for microwave scattering and gap reactance under an even, uniform incident electric field aligned parallel to the post.
Evaluated the scattering interactions across a rectangular waveguide and two related geometric structures.
Compared analytical expressions directly against previous formulations by Lewin and published reference curves in the Waveguide Handbook.
Established closed-form variational expressions that characterize both wave scattering behavior and gap reactance under symmetric electrical excitation.
Demonstrated qualitative and analytical improvements over earlier classical approximations from Lewin and existing Waveguide Handbook data.

Cite This Study

J A Bradshaw (1973) studied this question.

synapsesocial.com/papers/6a915847388f32339cd2cbfc https://doi.org/10.1109/tmtt.1973.1127988

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Implication

Theoretical modeling demonstrates refined scattering and gap reactance formulations for slotted metal posts in waveguides, highlighting improved accuracy over classic handbook benchmarks.

Scattering from a Round Metal Post and Gap

Discussion

Member takes

Implication

Key Points

Cite This Study

Scattering from a Round Metal Post and Gap

Discussion

Member takes

Implication

Key Points

Cite This Study

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