Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2006-04-17
2008-12-09
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S033000
Reexamination Certificate
active
07463109
ABSTRACT:
Methods and apparatuses are directed to a transition between a waveguide and a microstrip. One embodiment features an open-ended waveguide having an exposed side at a distal end, a substrate coupled to the open-ended waveguide at a proximate end, a resonator coupled to the substrate, a microstrip line electromagnetically coupled to the resonator, and a backshort coupled to the substrate. Another embodiment features receiving an electromagnetic wave, collecting an incident portion of the received electromagnetic wave, generating first wave having a resonance at a predetermined frequency using the incident portion of the received electromagnetic wave, reflecting a portion of the received electromagnetic wave off of a reduced scale backshort, back towards a collector, generating a second wave having a resonance at a predetermined frequency using the reflected portion of the received electromagnetic wave, and combining the first wave and the second wave in phase.
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Birch & Stewart Kolasch & Birch, LLP
Furuno Electric Company Ltd.
Lee Benny
LandOfFree
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