Title :
Multipaction-free combline diplexer for deep space applications
Author :
Subramanyam, A.V.G. ; Sivareddy, D. ; Srinivasan, V.V. ; Hariharan, V.K.
Author_Institution :
ISRO Satellite Centre, Bangalore, India
Abstract :
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.
Keywords :
Mars; UHF filters; microwave filters; multiplexing equipment; on-board communications; space communication links; space telemetry; transponders; waveguide filters; ISRO; Indian Space Research Organization; MOM spacecraft; S-band TT&C transponder; deep space application; mars orbiter mission spacecraft; multipaction-free combline compact high power diplexer; on-board diplexer; telecommand path; telemetry path; waveguide combline filter structure; Band-pass filters; Filtering theory; Microwave filters; Power filters; Radio frequency; Resonator filters; Space vehicles; Combline filter; TT&C transponder; diplexer; multipaction; passive components; waveguide filters;
Conference_Titel :
Microwave and RF Conference (IMaRC), 2014 IEEE International
Conference_Location :
Bangalore
DOI :
10.1109/IMaRC.2014.7039011
