Fan-fold Ka-band large reflector and its applications [International Communications Satellite Systems Conference]

Author(s):  
K. Nishi ◽  
S. Ozawa ◽  
K. Nakamura ◽  
N. Nakamura
Keyword(s):  
Ka Band ◽  
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.


1989 ◽  
Vol 25 (1) ◽  
pp. 9-19 ◽  
Author(s):  
M.H. Khan ◽  
T. Le-Ngoc ◽  
V.K. Bhargava
Keyword(s):  
Ka Band ◽  

2016 ◽  
Vol 841 ◽  
pp. 260-265
Author(s):  
Gustavo Guedez ◽  
Gao Qiang

The progressive congestion of the spectrum at low frequency bands, has obliged the need to use new systems which operate in higher frequencies, such as the Ka bands. The quality and availability of the signals in Ka band are seriously degraded by various climate phenomena, especially in the Amazon area. To keep the link properties in normal conditions (similar to clear sky conditions), is necessary to know the attenuation losses over the service area or footprint. For the Venezuelan Amazon region only Attenuation by atmospheric gases, Attenuation by rain and Scintillation and multipath effects, could be considered according to the ITU. The attenuation calculation is the first step to estimate the link budget and implement any communication service over Ka Band in the Venezuelan Amazon region. The aim of this research is modeling the channel attenuation for Ka band satellite signals and find a suitable attenuation data.


Author(s):  
Behzad Koosha ◽  
Omid Manoochehri ◽  
Hermann J. Helgert

The Q/V band communication systems open new avenues for next generation of High Throughput Satellite (HTS) systems. More specifically, they are attractive due to their high bandwidth for user and gateway links. Having a wide bandwidth at Q/V band makes it permissible to offload the links between the satellite and its earth station hubs (gateway) from the Ka band to the Q/V band. This enables additional bandwidth available for HTS feeder links and user links of specific market verticals, which in turn results in reduction of cost per bit. In this paper, we are going to discuss different aspects of an In-Flight Connectivity (IFC) scheme for HTS. Developing a wideband and multibeam antenna is an essential part of this proposed system, which is also going to be discussed in this paper.


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