Predistorted Ku-band rectangular waveguide input filter
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URI: http://hdl.handle.net/10317/3167Share
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Rogla, Luis; Sancho-Ruiz-de-Castañeda, María Teresa; Álvarez Melcón , Alejandro; Sobrino, SantiagoResearch Group
Grupo Electromagnetismo Aplicado a las TelecomunicacionesKnowledge Area
Teoría de la Señal y las ComunicacionesSponsors
Agencia Espacial EuropeaPublication date
2013-03-01Bibliographic Citation
ROGLA, Luis et al. Predistorted Ku-band rectangular waveguide input filter. En: 5º International Workshop on Microware Filters. 1-3 de octubre, Toulouse, Francia, 2012.Keywords
Microwave filtersHigh selectivity
Pre-distorsion
Abstract
In current Ku-band satellite telecommunication sys-
tems usually a working band selection is performed by means of
an input filter before the LNA. Moreover, in some architectures
more stringent selectivity requirements may be needed in order
to reject cross-coupled transmission power signals coming into
the reception chain, being necessary an spurious reject filter
after the LNA. On the other hand, depending on the near
rejection requirements implementing transmission zeros in the
filter response maybe needed. However, this also deteriorates in-
band response, affecting channels in the extremes of the reception
band. In-band response can be improved again by increasing
input filter quality factor using predistortion synthesis technique,
but at the cost of higher insertion loss and worse reflection
response. This work analyses how predistortion technique can be
applied to the design of Ku-band rectangular waveguide filters
with transmission zeros implemented through cross ...
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