公开(公告)号：CA2298223A1

公开(公告)日：2000-08-25

申请号：CA2298223

申请日：2000-02-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOWEN JOHN WAYNE ,  FRATTI ROGER ANTHONY ,  WEST MELVIN JR

IPC: H03H7/42 ,  H01P5/10 ,  H04B3/03

Abstract: A transmission line balun transformer for providing a single ended output signal from a pair of differential input signals includes two transmission line signal couplers. The couplers are individually designed to be relatively loosely coupled devices, i.e. having a coupling factor greater than 3dB, but are coupled together with proper phase relationships so as to achieve a relatively tighter composite coupling characteristic in the order of 3bB, thereby resulting in an increase in bandwidth.

公开(公告)号：CA2298223C

公开(公告)日：2002-10-15

申请号：CA2298223

申请日：2000-02-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOWEN JOHN WAYNE ,  FRATTI ROGER ANTHONY ,  WEST MELVIN JR

IPC: H03H7/42 ,  H01P5/10 ,  H04B3/03

Abstract: A transmission line balun transformer for providing a single ended output signal from a pair of differential input signals includes two transmission line signal couplers. The couplers are individually designed to be relatively loosely coupled devices, i.e. having a coupling factor greater than 3dB, but are coupled together with proper phase relationships so as to achieve a relatively tighter composite coupling characteristic in the order of 3bB, thereby resulting in an increase in bandwidth.