Slot line based high frequency oscillator using two-port...

Details Slot line based high frequency oscillator using two-port... Slot line based high frequency oscillator using two-port...

2006-06-13

2006-06-13

Chang, Joseph (Department: 2817)

Oscillators

Plural oscillators

Parallel connected

C331S115000

Reexamination Certificate

active

07061333

ABSTRACT:
A high frequency oscillator has a substrate, a resonator circuit which is disposed on one principal surface of the substrate and consists of a closed loop-shaped slot line including an inner conductor and an outer conductor, an electric boundary point set on the slot line, a two-port negative resistance element for connecting between the inner conductor and outer conductor, and an output line electrically connected to the slot line. The electric boundary point is set by connecting, for example, a stub to the resonator circuit. The stub functions as an electrically short-circuited end or an electrically open end. A Gunn diode is preferably used for the negative resistance element, and inserted at a position of the slot line resonator circuit at which impedance matching is achieved.

REFERENCES:
patent: 5021748 (1991-06-01), Chang et al.
patent: 5659274 (1997-08-01), Takahashi et al.
Kennedy, Electroinc Communication System, 1977 McGraw-Hill, Inc., Second Edition, pp. 232-239.

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