Wave transmission lines and networks – Coupling networks – Delay lines including long line elements
Patent
1998-02-06
2000-03-28
Bettendorf, Justin P.
Wave transmission lines and networks
Coupling networks
Delay lines including long line elements
333164, H03H 718
Patent
active
060437235
ABSTRACT:
A load line type phase displacement unit which is capable of reducing the time which is required for designing the system and increasing the system fabrication efficiency by simply adjusting a phase difference of an input signal by adjusting the length of a stub after the impedances of a main line and a stub are made identical with a characteristic impedance. The unit a main line unit having a main line having a characteristic impedance Z.sub.0 and an identical impedance Z.sub.c and a plurality of stubs having an impedance Z.sub.c of the main line and an identical impedance and being capable of changing a phase difference of an input signal, and a sub-line unit having a stub having an impedance which is identical with the characteristic impedance Z.sub.0 of the main line and a sub-line which is connected in parallel with the stub for compensating for error information based on the malfunction of the main line unit.
REFERENCES:
patent: 4951008 (1990-08-01), Vedrenne et al.
patent: 4999596 (1991-03-01), Nakatani et al.
Hayt, Jr., Engineering Electromagnetics, McGraw-Hill, pp. 440 & 454, 1981.
Bettendorf Justin P.
Hyundai Electronics Industries Co,. Ltd.
Kurland, Esq. Lawrence G.
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