High performance embedded RF filters

Details High performance embedded RF filters High performance embedded RF filters

2006-03-14

2006-03-14

Mayes, Melvin (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S089120, C156S089160, C156S252000, C156S253000, C333S208000

Reexamination Certificate

active

07011725

ABSTRACT:
Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These waveguides are made by forming openings in a first green tape stack, defining walls and apertures therein, mounting a second green tape stack having a conductive layer thereon thereover and firing the assembly. E-plane probes are inserted in openings in the second green tape stack and connected to microstrip transmission lines on an external surface pf this green tape stack.

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Gipprich et al., “Embedded Waveguide Filters For Microwave and Wireless Applications Using Cofired Ceramic Technologies,” Internatl. J. of Microcircuits and Electronic Packaging, vol. 21, No. 3, 3rdQuarter, pp. 279-283 (1998).

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