DESIGN AND CHARACTERIZATION OF HELIX SLOW WAVE STRUCTURE FOR KU-BAND SPACE TWT | Zendy

Mukesh Kumar Alaria | Zendy; Anirban Bera | Zendy; R. Sharma | Zendy; Vishnu Srivastava | Zendy

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DESIGN AND CHARACTERIZATION OF HELIX SLOW WAVE STRUCTURE FOR KU-BAND SPACE TWT

Author(s) -

Mukesh Kumar Alaria,

Anirban Bera,

R. Sharma,

Vishnu Srivastava

Publication year - 2010

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc10080602

Subject(s) - characterization (materials science) , helix (gastropod) , ku band , space (punctuation) , physics , engineering , materials science , computer science , optics , geology , snail , paleontology , operating system

A helix slow-wave structure (SWS) for a high e-ciency Ku-band 140W space TWT has been designed. Cold circuit parameters of helix SWS like propagation constant and on axis interaction impedance were determined using 3-D electromagnetic fleld simulators ANSOFT-HFSS and CST-MWS and validated with the experimental results. In-house developed large-signal code SUNRAY- 1D was used to design the complete helix SWS in 2-section with sever and taper to achieve desired output power, gain, e-ciency, and other linearity parameters such as phase shift, AM/PM factor, I/M components. Simulated RF performance of the Ku-band 140W helix TWT was validated with the experimental results. A close agreement between the simulated and experimental results has been found.

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