Wave transmission lines and networks – Resonators
Reexamination Certificate
2007-12-18
2007-12-18
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Resonators
C333S219100, C333S202000, C333S222000
Reexamination Certificate
active
10268415
ABSTRACT:
A dielectric resonator having variable cross-section, preferably varying monotonically, and, most preferably, the resonator being in the shape of a truncated cone. Such shapes displace the H11mode from the TE mode in the longitudinal direction of the cone. Truncating the cone to eliminate the portion of the cone where the H11mode exists, virtually eliminates the H11mode. A circuit comprising a plurality of these resonators may be arranged in an enclosure with each resonator longitudinally inverted relative to adjacent resonator(s) to provide a compact design with enhanced coupling and adjustability. A spiral coupling loop provides high magnetic flux in a small physical volume for coupling energy into or out of the circuit. Alternately, the resonator can coupled to a microstrip by placing the resonator upside-down near the microstrip, whereby the TE mode is immediately above the microstrip, providing enhanced coupling there between.
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Channabasappa Eswarappa
Pance Kristi Dhimiter
Glenn Kimberly E
Lee Benny
M/A-COM, Inc.
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