Circuit and method for balun compensation

Details Circuit and method for balun compensation Circuit and method for balun compensation

1993-09-22

1995-05-16

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333 26, H03H 742

Patent

active

054164516

ABSTRACT:
A novel circuit and method for providing amplitude and phase compensation for a balun in order to provide first and second voltage signals that are balanced has been provided. The compensation is achieved by adding an amplitude and phase compensation circuit such as a transmission line (14) or inductive (20) and capacitive (22) lumped elements in series with one of the ports of the balun on the balanced side. The amplitude and phase compensation circuit includes a characteristic impedance parameter (Zo) and an electrical length parameter (Eo) that are optimized such that the amplitude difference between first and second voltage signals is minimized, while the magnitude of the phase difference between first and second voltage signals is maximized.

REFERENCES:
patent: 2658959 (1953-11-01), Doherty
patent: 4945317 (1990-07-01), Sato et al.
patent: 5039891 (1991-08-01), Wen et al.
patent: 5045822 (1991-09-01), Mohwinkel
patent: 5296823 (1994-03-01), Dietrich

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