Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2007-06-19
2011-12-20
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S034000
Reexamination Certificate
active
08081044
ABSTRACT:
A surface-mountable waveguide arrangement comprising a dielectric carrier material having a first main side and a second main side, the second side comprising a ground plane, and the first side being arranged to form a microwave circuit layout by means of metallization patterns on the respective sides. The microwave circuit layout comprises a footprint for a surface-mountable waveguide part, the waveguide part comprising an open side, a part of the footprint constituting a closing wall arranged for closing the open side. The waveguide part is arranged for being mounted to a footprint solder area comprised in the footprint, having an outer contour and corresponding to a solderable contact area on the waveguide part. A solderstop line is formed on the footprint, at least partly defining a border between the closing wall and the footprint solder area. The present invention also relates to a dielectric carrier.
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patent: 6940361 (2005-09-01), Jokio et al.
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Muller, Thomas J. et al; Surface-mountable metalized plastic waveguide filter suitable for high volume production; 2003; 33rd European Microwave Conference, Munich 2003; pp. 1255-1258.
Lee Benny
Telefonaktiebolaget L M Ericsson (Publ)
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