BRAND: Ultra-Wideband Feed Development for the European VLBI Network - A Dielectrically Loaded Decade Bandwidth Quad-Ridge Flared Horn
Paper in proceedings, 2018

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.

dielectric load

quad-ridge flared horn

optimization

feed

wideband

radio astronomy

Author

Jonas Flygare

Chalmers, Space, Earth and Environment, Onsala Space Observatory

Miroslav Pantaleev

Chalmers, Space, Earth and Environment, Onsala Space Observatory

Simon Olvhammar

Chalmers, Space, Earth and Environment, Onsala Space Observatory

12th European Conference on Antennas and Propagation (EuCAP 2018)

Vol. 2018 CP741

12th European Conference on Antennas and Propagation (EuCAP 2018)
London, United Kingdom,

RadioNet 4

European Commission (Horizon 2020), 2017-01-01 -- 2020-12-31.

Areas of Advance

Information and Communication Technology

Infrastructure

Onsala Space Observatory

Subject Categories

Communication Systems

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1049/cp.2018.0817

More information

Latest update

1/21/2019