Wave transmission lines and networks – Coupling networks – With impedance matching
Reexamination Certificate
2008-07-28
2010-12-07
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Coupling networks
With impedance matching
C333S260000
Reexamination Certificate
active
07847654
ABSTRACT:
A microstripline transmission line arrangement carries a signal having a fundamental frequency. The arrangement includes a first microstripline transmission line, a second microstripline transmission line, and a coaxial electrically conductive conduit interconnecting the first transmission line and the second transmission line. The conduit includes a signal conductor and an electrically grounded shield substantially surrounding the signal conductor. The conductor and the shield are positioned relative to each other to thereby comprise a means for lowpass filtering the signal. A cutoff frequency of the lowpass filtering is less than a third harmonic of the fundamental frequency.
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Scott A. Wartenberg and Qing Huo Liu A Coaxial-to-Microstrip Transition for Multilayer Substrates IEEE Transactions on Microwave Theory and Techniques, vol. 52, No. 2, Feb. 2004, U.S.
Bosch Security Systems Inc.
Jones Stephen E
Robert & Bosch GmbH
Swedo, Esquire Keith J.
Taft Stettinius & Hollister LLP
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