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1. (WO2001031781) HIGH FREQUENCY, LARGE BANDWIDTH BALUN AND METHOD OF MANUFACTURING

Pub. No.:    WO/2001/031781    International Application No.:    PCT/US2000/029574
Publication Date: Fri May 04 01:59:59 CEST 2001 International Filing Date: Sat Oct 28 01:59:59 CEST 2000
IPC: H01F 27/06
H01F 30/02
H03H 7/42
Applicants: PULSE ENGINEERING, INC.
Inventors: PATEL, Arun
Title: HIGH FREQUENCY, LARGE BANDWIDTH BALUN AND METHOD OF MANUFACTURING
Abstract:
A high frequency, large bandwidth electronic device (300) for transforming balanced/unbalanced electrical signals. In one embodiment, the device (300) comprises an auto-transformer (318) mounted on substrate (312c) interposed between the balanced (102) and unbalanced port (104) so as minimize parasitic losses. Bonded bi-filar wire (318b) is wound around the auto-transformer core (318a) which facilitates a low, balanced leakage inductance thereby further enhancing device bandwidth. A method of manufacturing the aforementioned electronic device is also disclosed.