scholarly journals Ku Band Hemispherical Fully Electronic Antenna for Aircraft in Flight Entertainment

2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
Alfredo Catalani ◽  
Franco Di Paolo ◽  
Marzia Migliorelli ◽  
Lino Russo ◽  
Giovanni Toso ◽  
...  
Keyword(s):  
Electronic Devices ◽  
Geostationary Satellite ◽  
Active Antenna ◽  
Narrow Beam ◽  
Pattern Shape ◽  
Receive Antenna ◽  
Ku Band

The results obtained in the frame of the ESA activity “Advanced Antenna Concepts For Aircraft In Flight Entertainment” are presented. The aim of the activity consists in designing an active antenna able to guarantee the Ku band link between an aircraft and a geostationary satellite in order to provide in flight entertainment services. The transmit-receive antenna generates a single narrow beam to be steered electronically in a half sphere remaining compliant with respect to stringent requirements in terms of pattern shape, polarization alignment, EIRP, G/T, and using customized electronic devices. At the same time, the proposed solution should be competitive in terms of cost and complexity.

Ku-band Quadri-SSPA for Stentor satellite transmit active antenna

2002 ◽  
Author(s):  
D. Rogues ◽  
H. Chane-Kee-Sheung ◽  
F. Dubos ◽  
B. Cogo ◽  
J.-L. Cazaux
Keyword(s):  
Active Antenna ◽  
Ku Band

Ku-Band MMIC's for Space-Borne Active Antenna

1990 ◽  
Author(s):  
Jean-Louis Cazaux ◽  
Daniel Roques ◽  
Michel Pouysegur ◽  
Jean-Michel Merour
Keyword(s):  
Active Antenna ◽  
Ku Band

Ku Band High Power Amplifier for Active Antenna

1998 ◽  
Author(s):  
J. Ch. Cayrou ◽  
B. Cogo ◽  
J.L. Cazaux ◽  
B. Villeforceix
Keyword(s):  
Power Amplifier ◽  
High Power ◽  
Active Antenna ◽  
High Power Amplifier ◽  
Ku Band

scholarly journals A Wideband and Efficient Patch Antenna with Two Different Feeding Mechanisms for Ku/K Bands Applications

2020 ◽  
Vol 39 (3) ◽  
pp. 625-634
Author(s):  
Gulzar Ahmed ◽  
Muhammad Inayatullah Babar ◽  
Sadique Ali ◽  
Faheem Ali
Keyword(s):  
Computer Simulation ◽  
Patch Antenna ◽  
Return Loss ◽  
Electronic Devices ◽  
Computer Software ◽  
Microstrip Antennas ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Better Than ◽  
Ku Band

Low BW (Bandwidth) is a major limitation of microstrip antennas. A patch antenna having a large BW for Ku band applications is demonstrated in this manuscript. The skills of Defected Ground Structure (DGS) and defected driven patch were engaged to widen its BW. Four slices have also been confiscated from the ground for upgrading various characteristics. It is established on the basis of this study that it can be employed in spectrum defining and bands. It puts forward an impedance BW of 8GHz, which is appropriate for numerous applications. The ground/substrate of the structure under consideration is 22×10-3m long and 10×103m wide and these specifications imply that the volume of this design is very small. The entire structure’s utmost thickness is 1.67×10-3m. It can be easily installed in relevant handy electronic devices. Investigations and analysis in this case are made with computer software known as Computer Simulation Technology. The simulated design exhibits a very good gain and efficiency. Deviation in the gain of the simulated design was from 4.4 7.3dBi and it guaranteed the highest efficiency of 98.6%. Some minor changes in the antenna resulted in expansion in the BW from 8GHz to 14GHz. The return loss which was recorded at frequency of 18.15GHz went to 48.97dB and the mentioned changes assured the uppermost efficiency of 83.1%. The fabricated antenna achieved a bandwidth of 28GHz which is far better than the simulated bandwidth.

A multibeam active antenna for an European contiguous coverage at Ku-band

2003 ◽  
Author(s):  
G. Bartolucci ◽  
G. Leuzzi ◽  
C. Paoloni ◽  
M. Ruggieri ◽  
P. Russo
Keyword(s):  
Active Antenna ◽  
Ku Band

scholarly journals Development of an Electromagnetic Actuator for the Hot-Embossing Process

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 948 ◽  
Author(s):  
Dongwon Yun ◽  
Myeongjin Kim
Keyword(s):  
Polymer Film ◽  
Real Time ◽  
Electronic Devices ◽  
Hot Embossing ◽  
Optical Devices ◽  
Wearable Devices ◽  
Microfluidic Channels ◽  
Electromagnetic Actuator ◽  
Pattern Shape ◽  
The Impact

Hot embossing is in the spotlight due to the development of electronic devices, wearable devices, microfluidic channels, and optical devices. The conventional hot-embossing process creates a pattern on polymer film by using a previously patterned stamp that applied heat and pressure. This method has a disadvantage because it depends on the shape of the patterned stamp. For this reason, this method requires a high cost and a lot of time when replacing the stamp for making a new pattern shape or for modifying the error of the pattern. To solve this problem, the impact print-type hot-embossing method was proposed to create arbitrary patterns, and equipment for this method was assembled. In addition, patterning experiments were conducted to imprint several tens of micrometer-sized patterns in real time. For this method, we proposed an electromagnetic actuator for making the hot-embossing print type and for reducing the size of the actuator compared to previous studies. Through the patterning experiment, we determined that the proposed device could engrave fine dot patterns ranging from 60 μm to 120 μm in diameter. We verified the size of the generated pattern by using a confocal microscope, and we found the proposed hot-embossing technology can realize the desired shape in any position by using the proposed technique.

Sign in / Sign up

Export Citation Format

Share Document