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IEEE transactions on microwave theory and techniques, 1963-09, Vol.11 (5), p.324-332, Article 324
Ort / Verlag
IEEE
Erscheinungsjahr
1963
Quelle
IEEE Xplore
Beschreibungen/Notizen
In the 3-mm region (94 Gc) it is desirable to use waveguide components operating in the low loss TE/sub 01/ mode in circular waveguide rather than in fundamental-mode rectangular waveguide. Because this is a higher mode, mode purity is of major concern. A method of identifying undesired modes and their amplitudes is by means of radiation patterns from the end of the waveguide. Components developed to operate in this mode include a transition from rectangular to circular waveguide, standing wave detector, variable attenuator, directional coupler, flexible waveguide, fixed 90/spl deg/ bend and rotary joint.