Symmetrizing arrangement

Details Symmetrizing arrangement Symmetrizing arrangement

2004-03-22

2008-11-18

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S025000

Reexamination Certificate

active

07453327

ABSTRACT:
A re-balancing device (1) comprising a line (12). Said line comprises a first pole (3) of a first conductor (2) and a first pole (6) a second conductor (5) on a first side (8), in addition to a second pole (7) of a first conductor (2) and a second pole (7) of a second conductor (5) on a second side. The second side (9) of the line (12) is connected to a network consisting of impedances and a symmetrical connection (Out), with a first end (10) and a second end (11). The first pole (3) of the first conductor (2) is directly guided to a reference potential (GR) and the two first poles (3,6) form an unsymmetrical connection (In). The second pole (4) of the first conductor (2) is connected to the first end (10) of the symmetrical connection (Out) and connected to the reference potential (GR) via the third impedance (x3). The second pole (7) of the second conductor (5) is connected, by means of the first impedance (x1) to the second end (11) of the symmetrical connection (Out) and to a pole of the second impedance (x2). The second impedance (x2) is connected to the reference potential (GR). All impedances (x1,x2,x3) are electromagnetically decoupled from each other.

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Ang, K.; Leong, Y., and Lee, C., “Analysis and Design of Miniaturaized Lumped-Distributed Impedance-Transforming Baluns,” IEEE Transactions on Microwave Theory and Techniques, vol. 51, No. 3, Mar. 2003.
Cripps, S., “RF Power Amplifiers for Wireless Communication,”pp. 283-297.

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