A study of input filter design for high power high frequency space applications

2016 ◽  
Author(s):  
Bijeev N V ◽  
Vasantray H Jani ◽  
Peter K Joseph ◽  
Naveen B Sharma
Keyword(s):  
High Power ◽  
High Frequency ◽  
Filter Design ◽  
Space Applications ◽  
Frequency Space ◽  
Input Filter

scholarly journals High Power Combline Filter for Deep Space Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
A. V. G. Subramanyam ◽  
D. Siva Reddy ◽  
V. K. Hariharan ◽  
V. V. Srinivasan ◽  
Ajay Chakrabarty
Keyword(s):  
High Power ◽  
Filter Design ◽  
Test Results ◽  
Rf Power ◽  
Space Applications ◽  
Power Filter ◽  
Rejection Filter ◽  
Design And Testing ◽  
High Rejection ◽  
Orbiter Mission

An S-band, compact, high power filter, for use in the Mars Orbiter Mission (MOM) of Indian Space Research Organization (ISRO), has been designed and tested for multipaction. The telemetry, tracking, and commanding (TT&C) transponder of MOM is required to handle continuous RF power of 200 W in the telemetry path besides simultaneously maintaining an isolation of greater than 145 dBc to its sensitive telecommand path. This is accomplished with the help of a complex diplexer, requiring high power, high rejection transmit path filter, and a low power receive path filter. To reduce the complexity in the multipaction-free design and testing, the transmit path filter of the diplexer is split into a low rejection filter integral to the diplexer and an external high rejection filter. This paper highlights the design and space qualification phases of this high rejection filter. Multipaction test results with 6 dB margin are also presented. Major concerns of this filter design are isolation, insertion loss, and multipaction. Mission performance of the on-board filter is normal.

scholarly journals Force detection of high-frequency electron spin resonance near room temperature using high-power millimeter-wave source gyrotron

2021 ◽  
Vol 118 (2) ◽  
pp. 022407
Author(s):  
Hideyuki Takahashi ◽  
Yuya Ishikawa ◽  
Tsubasa Okamoto ◽  
Daiki Hachiya ◽  
Kazuki Dono ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Millimeter Wave ◽  
Electron Spin ◽  
High Power ◽  
High Frequency ◽  
Room Temperature ◽  
Force Detection ◽  
Wave Source ◽  
Spin Resonance ◽  
Millimeter Wave Source
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