Wideband uniplanar 180° phase switch

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URI: https://hdl.handle.net/10902/38421
ISSN: 0013-5194
ISSN: 1350-911X
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Autoría
Villa Benito, EnriqueAutoridad Unican; Aja Abelán, BeatrizAutoridad Unican; Fuente Rodríguez, Luisa María de laAutoridad Unican; Artal Latorre, EduardoAutoridad Unican
Fecha
2009-05
Derechos
© IET This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library
Publicado en
Electronics Letters, 2009, 45(11), 556-557
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IET
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Resumen/Abstract
A wideband 180° phase switch is developed at millimetre-wave frequencies (31 GHz centre frequency) using uniplanar technology. The circuit is designed using coplanar-to-slotline transitions and commercial pin diodes as switching devices. The implementation is straightforward, fast in terms of fabrication and low-cost. The circuits tested, made on an alumina substrate, show a phase difference between states of 180°±2°, providing 40% bandwidth with in-band insertion loss lower than 2.5 dB and a return loss better than 10 dB. The phase switch provides a ±5° phase error in a bandwidth of around 60%, from 18 to 38 GHz.
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