Coaxial K inverter

Details Coaxial K inverter Coaxial K inverter

1982-10-18

1984-09-25

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333 33, 333207, 333232, H01P 1202, H01P 504

Patent

active

044738072

ABSTRACT:
An improved coaxial K inverter is disclosed for use in forming coaxial microwave filters. A filter including a K inverter may be constructed using at least one resonator including a conductor terminated at one end by an apertured plate and coaxially surrounded by a dielectric material. The resonator may be enclosed in a conductive housing electrically coupled to the apertured plate and capacitively coupled at the other end of the conductor to an input terminal for receiving microwave energy. A second conductor terminated at one end in a second apertured plate is positioned within the housing such that the apertured plates are adjacent one another forming a K inverter. The other end of the second conductor is capacitively coupled to an output terminal forming the electrical output from the filter.

REFERENCES:
patent: 4030051 (1977-06-01), Shimizu et al.
patent: 4255729 (1981-03-01), Fukasawa et al.
Wakino et al.,-"Quarter Wave Dielectric Transmission Line Diplexer for Land Mobile Communications" MTT Symposium 1980; pp. 278-280.
Young et al.,-"Microwave Filters, Impedance-Matching Networks, and Coupling Structures", McGraw-Hill Book Company, New York, 1964; pp. 427-472.

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