MLC frequency selective circuit structures

US6806793B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Harsaran S. Bhatia · Beacon, US
• Harvey C. Hamel · Poughkeepsie, US
• David C. Long · Wappingers Falls, US
• Edward R. Pillai · Langenhagen, DE
• Christopher D. Setzer · Wappingers Falls, US
• Benjamin Tongue · Fishkill, US

Key dates

• Filing date: Dec 13, 2002
• Grant date: Oct 19, 2004
• Expiry date: Dec 13, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H2210/012
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

MLC (multilayer ceramic) frequency selective circuit structures are disclosed. The MLC frequency selective circuit structures have a solenoid and toroid coil geometry in a multilayer electronic package which functions as a frequency selective tuned circuit in which both the number of turns and the aspect ratio of the solenoid coil are selected to adjust the tuned frequency. In some embodiments, a plurality of such coils can be connected together to provide a selected bandwidth about a tuned center frequency.