Stacked CPW-fed antenna for satellite applications with gain enhancement

2015 ◽  
Author(s):  
A. Naghar ◽  
A. V. Alejos ◽  
M. Garcia Sanchez ◽  
Otman Aghzout ◽  
Francisco Falcone
Keyword(s):  
Gain Enhancement ◽  
Satellite Applications

scholarly journals Packaging Technique for Gain Improvement of Multi-resonance CPW-fed Antenna for Satellite Applications

2017 ◽  
Vol 7 (4) ◽  
pp. 2094
Author(s):  
Jalal Naghar ◽  
Azzeddin Naghar ◽  
Otman Aghzout ◽  
Ana Vazquez Alejos ◽  
Francisco Falcone
Keyword(s):  
Antenna Arrays ◽  
Dielectric Material ◽  
Beam Width ◽  
Gain Enhancement ◽  
Single Antenna ◽  
Antenna Performance ◽  
Additional Layer ◽  
Satellite Applications ◽  
Suitable Technique ◽  
Major Reduction

<p>A suitable technique for gain improvement of multi-resonance CPW-fed antenna for satellite application at Ku-, K- and Ka-bands for user terminals is presented in this paper. New concept of stacking numerous layers with different dielectric material has been also presented. The conventional antenna design consists of a CPW-fed patch antenna with modified CPW elements printed on Rogers TMM4 substrate. In order to improve the antenna performance in term of gain and bandwidth, we propose two different configurations. The first one consists of designing a stacked structure by adding on the top of the single antenna an additional layer with parasitic elements. The dielectric added consists in Rogers RO3010 substrate with a high permittivity of 10.2. The proposed antenna is formed by two layers separated by an air gap; this new configuration provides major reduction on antenna beam width and allows gain enhancement. The second one implement the design of 2×1 and 4×1 series feed antenna arrays based on the conventional CPW-fed antenna. These array configurations are used to achieve higher gain in comparison with stacked solution. Finally we combined both techniques yielding the stacked 4×1 series feed antenna array. Fabricated CPW-fed antenna and the achieved results demonstrate the performance of presented techniques for gain improvements.</p>

Design and Analysis of Wideband Dielectric Resonator Antenna with Bandwidth and Gain Enhancement for C-Band Applications

2018 ◽  
Vol 11 (6) ◽  
pp. 352 ◽  
Author(s):  
Sharif Ahmed Qasem ◽  
Tan Kim Geok ◽  
Mohamad Yusoff Alias ◽  
Ferdous Hossain ◽  
Naif Alsowaidi
Keyword(s):  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Gain Enhancement

Monolithic integrated receiver technology for future satellite applications

1992 ◽  
Author(s):  
H.-L. HUNG ◽  
A. EZZEDDINE ◽  
A. DARWISH ◽  
G. HEGAZI ◽  
S. WERNEK ◽  
...  
Keyword(s):  
Satellite Applications ◽  
Integrated Receiver

Gain Enhancement for Reflectarray

PIERS Online ◽  
2006 ◽  
Vol 2 (6) ◽  
pp. 601-604
Author(s):  
The-Nan Chang
Keyword(s):  
Gain Enhancement

scholarly journals Geometrical Optics Restricted Eavesdropping Analysis of Satellite-to-Satellite Secret Key Distillation

Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 950
Author(s):  
Ziwen Pan ◽  
Ivan B. Djordjevic
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Security Analysis ◽  
Key Distribution ◽  
Geometrical Optics ◽  
Secret Key ◽  
Satellite Applications

Traditionally, the study of quantum key distribution (QKD) assumes an omnipotent eavesdropper that is only limited by the laws of physics. However, this is not the case for specific application scenarios such as the QKD over a free-space link. In this invited paper, we introduce the geometrical optics restricted eavesdropping model for secret key distillation security analysis and apply to a few scenarios common in satellite-to-satellite applications.

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