Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-02-28
2006-02-28
Takaoka, Dean (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S104000, C455S078000
Reexamination Certificate
active
07005940
ABSTRACT:
A multiband transformation stage (14) comprising a common first signal port (20), a common second signal port (26) and a signal path (50) coupled between the first signal port (20) and the second signal port (26) is described. The signal path (50) is switchable between a first state with a first quarter-wavelength transformer characteristic for a first frequency band, a second state with a second quarter-wavelength transformer characteristic for a second frequency band and a third state with a transmission characteristic. The invention also relates to a multiband switching device comprising the multiband transformation stage (14) in combination with a low-power switching stage (16).
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Nixon & Vanderhye P.C.
Takaoka Dean
Telefonaktiebolaget LM Ericsson (publ)
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