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Imaging radar for navigation and surveillance on an autonomous unmanned ground vehicle capable of detecting obstacles obscured by vegetation
Daniel Gusland;Børge Torvik;Erlend Finden;Fredrik Gulbrandsen;Ragnar Smestad
The Norwegian Defence Research Establishment (FFI), has developed a multi purpose radar demonstrator for Intelligence, Surveillance and Reconnaissance (ISR) on the Off-road Light Autonomous Vehicle (OLAV) platform. The radar is designed to aid OLAV in navigation, detection and classification. Operating in off-road environments is a considerable challenge for autonomous vehicles, especially in the ...Show More
Packaging and cooling of an X-band digital array radar T/R module
Harald Iwe;Ottar Opland;Jan Rune Nilssen;Fredrik Gulbrandsen;Asgeir Nysæter
This paper describes the packaging and cooling design of a low-cost and compact X-band transmit/receive (T/R) module for a digital array radar, made by using both packaged and bare dies. Due to the high power generated by the Gallium-Nitride (GaN) dies and the dense environment, a liquid cooling system is required. The design and manufacturing of this cooling system is described together with ther...Show More
A dual polarized crossed bowtie array antenna for DVB-T based passive radar (Invited paper)
Erlend Finden;Kyrre Strøm;Idar Norheim-Næss;Mathias Tommer;Øystein Lie-Svendsen;Fredrik Gulbrandsen;Karl Erik Olsen
2016 IEEE Conference on Antenna Measurements & Applications (CAMA)
Year: 2016 | Conference Paper |
Cited by: Papers (4)
An 11 element crossed bowtie array antenna has been developed for use in Digital Video Broadcasting-Television (DVB-T) based passive radar. Simulation results of the array show a gain of 6 dB and measurements in anechoic chamber show more than 20 dB cross-polarized isolation. Co- and cross-polarized passive radar measurements of a Cessna 172 aircraft have been conducted and the results are compare...Show More
This paper presents the design of an X-band 8×8 digital array radar antenna with aperture-coupled stacked patch antenna elements. The use of a resonant aperture and stacked patches resulted in a -10 dB reflection coefficient bandwidth of 7.6-12.8 GHz (51%). Scan angles up to ±80 have been achieved for certain frequencies and ±55 for a frequency band of 8-8.50 GHz. The array has been built using lo...Show More
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