A compact 5-bit phase-shifter MMIC for K-band satellite communication systems

2000 ◽  
Vol 48 (12) ◽  
pp. 2652-2656 ◽  
Author(s):  
C.F. Campbell ◽  
S.A. Brown
Keyword(s):  
Communication Systems ◽  
Phase Shifter ◽  
Satellite Communication ◽  
K Band

Design and development of ferroelectric tunable microwave components for Kuand K-band satellite communication systems

2000 ◽  
Vol 48 (7) ◽  
pp. 1181-1189 ◽  
Author(s):  
F.A. Miranda ◽  
G. Subramanyam ◽  
F.W. van Keuls ◽  
R.R. Romanofsky ◽  
J.D. Warner ◽  
...  
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Design And Development ◽  
Microwave Components ◽  
Tunable Microwave ◽  
K Band

scholarly journals RF-MEMS Monolithic K and Ka Band Multi-State Phase Shifters as Building Blocks for 5G and Internet of Things (IoT) Applications

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2612 ◽  
Author(s):  
Jacopo Iannacci ◽  
Giuseppe Resta ◽  
Alvise Bagolini ◽  
Flavio Giacomozzi ◽  
Elena Bochkova ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Communication Systems ◽  
High Speed ◽  
Phase Shifter ◽  
Satellite Communication ◽  
Rf Mems ◽  
Building Blocks ◽  
Phase Shifters ◽  
Small Cells ◽  
Mems Technology

RF-MEMS, i.e., Micro-Electro-Mechanical Systems (MEMS) for Radio Frequency (RF) passive components, exhibit interesting characteristics for the upcoming 5G and Internet of Things (IoT) scenarios, in which reconfigurable broadband and frequency-agile devices, like high-order switching units, tunable filters, multi-state attenuators, and phase shifters will be necessary to enable mm-Wave services, small cells, and advanced beamforming. In particular, satellite communication systems providing high-speed Internet connectivity utilize the K and Ka bands, which offer larger bandwidth compared to lower frequencies. This paper focuses on two design concepts of multi-state phase shifter designed and manufactured in RF-MEMS technology. The networks feature 4 switchable stages (16 states) and are developed for the K and Ka bands. The proposed phase shifters are realized in a surface micromachining RF-MEMS technology and the experimentally measured parameters are compared with Finite Element Method (FEM) multi-physical electromechanical and RF simulations. The simulated phase shifts at both the operating bands fit well the measured value, despite the measured losses (S21) are larger than 5–7 dB if compared to simulations. However, such a non-ideality has a technological motivation that is explained in the paper and that will be fixed in the manufacturing of future devices.

K-band SS/TDMA in Japanese satellite communication system

1982 ◽  
Author(s):  
S. OKASAKA ◽  
M. NAKAMURA ◽  
T. TANAKA ◽  
T. TAKEUCHI ◽  
H. KOMAGATA
Keyword(s):  
Communication System ◽  
Satellite Communication ◽  
Satellite Communication System ◽  
K Band

Superconducting receivers for advanced satellite communication systems

1994 ◽  
Author(s):  
F. Ananasso ◽  
F. Santucci
Keyword(s):  
Communication Systems ◽  
Satellite Communication

Measuring time-varying propagation effects for LEO satellite communication systems

2000 ◽  
Author(s):  
Darby Cooper ◽  
Jeffrey Lasater ◽  
Robert Sternowski ◽  
William Byrd
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Time Varying ◽  
Measuring Time ◽  
Propagation Effects ◽  
Leo Satellite

INNOVATIVE METHOD OF SATELLITE COMMUNICATION

2019 ◽  
Author(s):  
Teodor Narytnik ◽  
Vladimir Saiko
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Satellite Communication ◽  
Radio Channel ◽  
Satellite Communications ◽  
Service Area ◽  
Satellite Systems ◽  
Orbit Satellite ◽  
Geometric Size ◽  
Distributed Satellite

The technical aspects of the main promising projects in the segments of medium and low-orbit satellite communication systems are considered, as well as the project of the domestic low-orbit information and telecommunications system using the terahertz range, which is based on the use of satellite platforms of the micro- and nanosatellite class and the distribution of functional blocks of complex satellite payloads more high-end on multiple functionally related satellites. The proposed system of low-orbit satellite communications represents the groupings of low-orbit spacecraft (LEO-system) with the architecture of a "distributed satellite", which include the groupings of the root (leading) satellites and satellite repeaters (slaves). Root satellites are interconnected in a ring network by high-speed links between the satellites. The geometric size of the “distributed satellite” is the area around the root satellite with a radius of about 1 km. The combination of beams, which are formed by the repeater satellites, make up the service area of the LEO system. The requirements for the integrated service area of the LEO system (geographical service area) determine the requirements for the number of distributed satellites in the system as a whole. In the proposed system to reduce mutual interference between the grouping of the root (leading) satellites and repeater satellites (slaves) and, accordingly, minimizing distortions of the information signal when implementing inter-satellite communication, this line (radio channel) was created in an unlicensed frequency (e.g., in the terahertz 140 GHz) range. In addition, it additionally allows you to minimize the size of the antennas of such a broadband channel and simplify the operation of these satellite systems.

Optimising half duplex operation in satellite communication systems

2009 ◽  
Author(s):  
L. Clarac ◽  
H.G. Perez
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Half Duplex
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