User terminal segments for low-earth orbit satellite constellations: Commercial systems and innovative research ideas

R Correia, T Varum, JN Matos, A Oliveira… - IEEE Microwave …, 2022 - ieeexplore.ieee.org
Despite the rapid and continuous development of communication and networking
technologies, the goal of universal connectivity (ie, the ability to communicate with any user …

Antenna at S-band as ground for array at X-band in dual frequency antenna at S/X-bands

P Mathur, G Kumar - Progress In Electromagnetics Research Letters, 2017 - jpier.org
In this paper, a novel configuration for linearly polarised Dual Frequency Microstrip Antenna
at S-and X-bands is presented. The proposed configuration utilises the frequency ratio of 1 …

Log periodic implementation of butterfly shaped patch antenna with gain enhancement technique for X-band applications

RA Panda, M Panda, PK Nayak, D Mishra - ICICCT 2019–System …, 2020 - Springer
The log periodic implementation of butterfly shaped patch antenna has been proposed to
operate under the X-band (ie 8 GHz to 12 GHz) which have a wide range of applications in …

Design of a 2× 3 Microstrip Patch Phased Array Antenna for GNSS Augmentation

AAMS Sadman… - 2020 23rd International …, 2020 - ieeexplore.ieee.org
An array antenna has been proven to be more beneficial than a single element antenna as it
augments the directivity as well as the control over radiation pattern. Not only that, it enables …

Joint results of the Aveiro and Vigo alphasat propagation campaigns

J Flávio, F Perez-Fontan, F Jorge… - 2017 11th European …, 2017 - ieeexplore.ieee.org
The usage of Fade Mitigation Techniques (FMT) is mandatory for satellite communications
operating over 10GHz once the atmospheric propagation effects get severe with the …

[PDF][PDF] Optical control of radio beamsteering for broadband satellite communication

NM Tessema - 2017 - research.tue.nl
The research activity described in this thesis is carried as part of the FREEBEAM (A fiber to
RF-FREE space multiBEAM converter) project funded by The Netherlands Organization for …

Fast Full-Wave Methods for Aperiodic Antenna Arrays for Space Applications

M Brandt-Møller - 2023 - orbit.dtu.dk
This dissertation presents the Higher-Order Array Decomposition Method (HO-ADM), a fast,
accurate yet versatile full-wave analysis technique applicable for electrically large arrays of …

Ferramenta de Pré-Processamento e Análise de Dados de Propagação Terra-Satélite nas Bandas KA e Q

JRO Flávio - 2016 - search.proquest.com
Os sistemas de comunicação por satélite são os únicos com capacidade de fornecer
serviços de elevado débito, em qualquer lugar, a qualquer instante, em qualquer parte do …

Log Periodic Implementation of Butterfly Shaped Patch Antenna with Gain Enhancement Technique for X-Band

M Panda, PK Nayak - ICICCT 2019–System Reliability, Quality …, 2019 - books.google.com
The log periodic implementation of butterfly shaped patch antenna has been proposed to
operate under the X-band (ie 8 GHz to 12 GHz) which have a wide range of applications in …

[SÁCH][B] Advanced Parallel Architectures for 5G All-Digital Transmitters

DA da Costa Dinis - 2019 - search.proquest.com
A quinta geração de comunicações móveis (5G) está a ser preparada e deve ser
comercializada nos próximos anos. Algumas das caracterı́sticas inovadoras esperadas …