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BRAND: Ultra-Wideba...
BRAND: Ultra-Wideband Feed Development for the European VLBI Network - A Dielectrically Loaded Decade Bandwidth Quad-Ridge Flared Horn
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- Flygare, Jonas, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Pantaleev, Miroslav, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Olvhammar, Simon, 1992 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Institution of Engineering and Technology, 2018
- 2018
- Engelska.
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Ingår i: IET Conference Publications. - : Institution of Engineering and Technology. ; 2018:CP741
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Abstract
Ämnesord
Stäng
- We present the design of an ultra-wideband dielectrically loaded Quad-Ridge Flared Horn (QRFH) feed for the European Very Long Baseline Interferometry Network (EVN) developed under the RadioNet project BRoad-bAND (BRAND). The feed covers a frequency bandwidth ratio of 10:1 and has an average aperture efficiency of 50 percent simulated in primary focus setup on the Effelsberg telescope (f/D = 0.3). The feed is dual-polarized and has an input reflection better than −10 dB over the whole 1.5–15.5 GHz frequency band. We also introduce an Analytic-Spline-Hybrid (ASH) optimization scheme for the QRFH ridge and sidewall profiles.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- radio astronomy
- feed
- wideband
- optimization
- dielectric load
- quad-ridge flared horn
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)