Multipaction-free combline diplexer for deep space applications

Compact high power diplexer has been designed for Mars Orbiter Mission (MOM) spacecraft of Indian Space Research Organization (ISRO), launched in November-2013. This is realized using waveguide combline filter structures with an additional objective of multipaction-free operation. Used in S-band TT&...

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Bibliographic Details
Main Authors: Subramanyam, A. V. G., Sivareddy, D., Srinivasan, V. V., Hariharan, V. K.
Format: Conference Proceeding
Language:English
Subjects:
Band-pass filters
Combline filter
diplexer
Filtering theory
Microwave filters
multipaction
passive components
Power filters
Radio frequency
Resonator filters
Space vehicles
TT&C transponder
waveguide filters
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Description
Summary:Compact high power diplexer has been designed for Mars Orbiter Mission (MOM) spacecraft of Indian Space Research Organization (ISRO), launched in November-2013. This is realized using waveguide combline filter structures with an additional objective of multipaction-free operation. Used in S-band TT&C transponder that handles continuous RF power of 200W in telemetry path besides an isolation of >145dB to telecommand path. Diplexer design, realization and test results are presented. Mission performance of on-board diplexer is normal.
ISSN:2377-9144
2377-9152
DOI:10.1109/IMaRC.2014.7039011