@conference{10902/3120,
year = {2010},
month = {9},
url = {http://hdl.handle.net/10902/3120},
abstract = {This document presents the design, simulation and
 characterization of a hybrid-ring coupler using uniplanar
 technology, developed at millimetre-wave frequencies. The
 hybrid-ring coupler is designed using a combination of coplanar
 waveguide (CPW) and slotline transmission lines in order to
 achieve the phase difference response between the transmitted
 and coupled ports. The use of uniplanar technology makes a
 straightforward and fast implementation, and also offers an
 easy integration with other MIC or MMIC applications. The
 circuit is optimized to get the best phase results by tuning the
 slotline branch of the ring. Circuit characterization shows a
 wideband frequency response, around 17 GHz, in terms of
 phase difference (180º±5º) working up to 40 GHz.},
publisher = {URSI 2010, XXV Simposium Nacional de la Unión Científica Internacional de Radio, Bilbao},
title = {Híbrido 180º de banda ancha en tecnología uniplanar para ondas milimétricas},
author = {Villa Benito, Enrique and Cagigas Ibañez, Jaime and Artal Latorre, Eduardo},
}