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A fractal quad-band antenna loaded with -shaped slot and metamaterial for wireless applications
Tanweer Ali, Mohammad Saadh Aw, Rajashekhar C. Biradar
A novel concept of using fractal antenna with metamaterial and slot to achieve multiband operation is investigated. The antenna consists of an -shaped slot in the radiating monopole perturbs the surface current distribution; thereby increasing the total current path length which tends the antenna to further operate at 5.5 (upper WiMAX), 7.3 (satellite TV) and 9.9 GHz (X-band), respectively. The ex
An explicit single-layer frequency selective surface design with wide stop band frequency response
M. Bashiri, Ch. Ghobadi, J. Nourinia, M. Majidzadeh
This manuscript deals with the development of a novel configuration of a wide-band single-layer frequency selective surface (FSS) for wide-band rejection applications. The established unit cell is composed of a simple circular ring on the top side of the substrate and a combined conductive element on the backside. Such an inclusion of conductive elements and accurate tuning of their dimensions end
EMC microwave absorber for outdoor applications
Roman Kubacki, Wojciech G?uszewski, Dariusz Laskowski, Karol Rudyk, Marek Kuchta
In some circumstances, electromagnetic compatibility testing must be performed not in a specialized anechoic chamber, but in an open space. However, typical absorbers used in anechoic chambers to absorb incident radiation and to reduce the amount of rays reflected from the walls and the floor, such as ferrite tiles and graphite cones, are not suitable in an open space. In this work, we present the
Optimization of wireless sensor network deployment for electromagnetic situation monitoring
Krzysztof Malon, Pawe? Skokowski, Jerzy Lopatka
Wireless sensor networks are an increasingly popular tool for monitoring various environmental parameters. They can also be used for monitoring the electromagnetic spectrum. Wireless sensors, due to their small size, typically have simplified radio receivers with reduced sensitivity and use small antennas. As a result, their effective performance area is similarly limited. This is especially impor
A 52-to-67 GHz dual-core push?push VCO in 40-nm CMOS
Vadim Issakov, Johannes Rimmelspacher, Saverio Trotta, Marc Tiebout, Amelie Hagelauer, Robert Weigel
We present a continuously tunable 52-to-67 GHz push?push dual-core voltage-controlled oscillator (VCO) in a 40 nm bulk complementary metal?oxide?semiconductor (CMOS) technology. The circuit is suitable for 60 GHz frequency-modulated-continuous-wave radar applications requiring a continuously tunable ultra-wide modulation bandwidth. The LC-tank inductor is used to couple the two VCO cores. The fund
Plastic and metal additive manufacturing technologies for microwave passive components up to band
Johann Sence, William Feuray, Aurélien Périgaud, Olivier Tantot, Nicolas Delhote, Stéphane Bila, Serge Verdeyme, Jean-Baptiste Pejoine, René-Philippe Gramond
This paper illustrates the different possibilities given by additive manufacturing technologies for the creation of passive microwave hardware. The paper more specifically highlights a prototyping scheme where the 3D-printed plastic parts can be used as initial proofs of concept before considering more advanced 3D-printed parts (metal parts, for instance). First, a characterization campaign has be
EuRAD: Advances in Space Radar and Telecommunications Microwave Equipment
Andrea Suriani
Proceedings of the 15th European Radar Conference Advances in Space Radar and Telecommunications Microwave Equipment Andrea Suriani Thales Alenia Space, Italy andrea.suriani-thalesaleniaspace.com Abstract ? Recent advances at Thales Alenia Space in Italy are presented regarding on-board microwave equipment for telecommunications subsystems and spaceborne radar imaging subsystems. Keywords ? Spac
EuRAD: Multi-Temporal Space-Borne SAR Data Exploitation for Surface Monitoring Applications
Ruben Iglesias, Javier Duro, Johanna Granda, Fernando Vicente-Guijalba, Giuseppe Centolanza, Emma Garcia, Dani Monells
Proceedings of the 15th European Radar Conference Multi-temporal space-borne SAR data exploitation for surface monitoring applications Rubén Iglesias, Javier Duro, Johanna Granda, Fernando Vicente-Guijalba, Giuseppe Centolanza, Emma Garcia and Dani Monells DARES TECHNOLOGY, C/ Esteve Terradas, 1, Edif. RDIT, Parc UPC - PMT, 08860 Castelldefels, Barcelona riglesias-dares.tech considered one of the
EuRAD: Signal Processing for Enhanced Radar Imaging
Stefan Bruggenwirth, Simon Wagner, Tanja Bieker, Nicola Battisti, Vincenzo Rispoli, Mario Greco, Marco Messina, Gianpaolo Pinelli, Davide Cataldo, Marco Martorella
Proceedings of the 15th European Radar Conference Signal Processing for Enhanced Radar Imaging Stefan Brüggenwirth#1, Simon Wagner#2, Tanja Bieker#3, Nicola Battisti*4, Vincenzo Rispoli*5, Mario Greco+6, Marco Messina+7, Gianpaolo Pinelli+8, Davide Cataldo§9 and Marco Martorella?,§10 # Fraunhofer FHR, Cognitive Radar Department, Wachtberg, Germany * MBDA Italy, Rome, Italy + IDS Ingegneria Dei S
EuRAD: Architectures for Multifunction RF & Optronics Sensors Onboard RPAS Platforms
Adrian Jimenez, Miguel Alfageme, David Llamazares, Valentin Polo, Elisabeth Perez, Santiago Simon
Proceedings of the 15th European Radar Conference Architectures for Multifunction RF & Optronics Sensors Onboard RPAS Platforms Adrián Jimenez #1, Miguel Alfageme*2, David Llamazares#3, Valentín Polo*4, Elisabeth Pérez#5, Santiago Simón*6 # everis Aeroespacial y Defensa, Spain * DAS Photonics, Spain 1 3 5 { ajimegon, dllamaza, eperezga}-everis.com, {2malfageme, 4vpolo, 6ssimon}-dasphotonics.com
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