Development of Ka-band digital beam forming antenna payload for the engineering test satellite-9 [International Communications Satellite Systems Conference]

Author(s):  
E. Sakai ◽  
Y. Inasawa ◽  
M. Kusano ◽  
H. Ono ◽  
A. Kanasash ◽  
...  
2014 ◽  
Vol 2014 (1) ◽  
pp. 000816-000819 ◽  
Author(s):  
Tobias Klein ◽  
Peter Uhlig ◽  
Carsten Günner ◽  
Reinhard Kulke

Low Temperature Cofired Ceramics (LTCC) technology is increasingly used for creating high-rel solutions, especially in class S products deployed in space. Current research, executed by the german and european space agencies, focuses inter alia on new, compact beam forming networks for Ka-band multiple feed per beam antennas. These networks consist of a high number of dividers and must provide a high isolation between neighbouring cells to ensure compliance with frequency plan regulations. While the LTCC process brings a number of advantages, its thick film printing process and the tolerances of available resistive paste systems introduce difficulties in implementing typical Wilkinson divider networks. This paper presents a novel concept to implement tolerance-optimized dividers, taking special focus on the properties of the LTCC process.


1998 ◽  
Author(s):  
Roger Rusch ◽  
Charles Emmert
Keyword(s):  
Ka Band ◽  

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000082-000087
Author(s):  
Tobias Klein ◽  
Carsten Günner ◽  
Reinhard Kulke

The complexity of today's satellite systems is ever-growing and system weight and size of the subcomponents are becoming even more critical as the number of channels increases. A possible solution for achieving small systems, while maintaining reliability, is the use of the LTCC process. The so-called Keramis technology is a modular concept, where a number of small, hermetically sealed LTCC modules are connected on a carrier substrate. For these systems, the interconnect technology that connects the different LTCCs is of high importance. This paper presents a novel BGA interconnect for high frequency operation up to 40 GHz.


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