Broadband RF transformer

Details Broadband RF transformer Broadband RF transformer

1989-08-17

1991-05-14

Kozma, Thomas J.

Wave transmission lines and networks

Coupling networks

With impedance matching

333 33, 336 61, 336 83, 336200, 336232, H03H 738

Patent

active

050159720

ABSTRACT:
A broadband RF transformer design is described that facilitates the construction of a broadband impedance transformer in a compact, planar format, while retaining ease of assembly and manufacture. Broadband operation is achieved through the use of a slotted low-impedance winding structure, common-manufacture ferrite elements, and the optional placement of reactive elements between winding turns. By virtue of construction, thermal performance is enhanced, allowing operation at power levels not previously possible. The invention accommodates functional tuning via laser or abrading techniques. Also, the winding configuration eliminates the need to access the center of a spiral for the purposes of establishing a ground connection.

REFERENCES:
patent: 3539959 (1970-11-01), Wildi
patent: 4313152 (1982-01-01), Vranken
patent: 4616205 (1986-10-01), Praught et al.

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