Frequency-changeable microwave signal generator having plural se

Details Frequency-changeable microwave signal generator having plural se Frequency-changeable microwave signal generator having plural se

1986-09-03

1987-08-18

Grimm, Siegfried H.

Oscillators

Plural oscillators

Selectively connected to common output or oscillator...

331 56, 331179, 375 66, H01P 512, H04L 2716

Patent

active

046880046

ABSTRACT:
A frequency-changeable microwave signal generator has a plurality of microwave signal oscillators, a plurality of branch lines connected to the microwave signal oscillators, a transmission line connected to the plurality of branch lines and provided with an output port at one end thereof, and a means for selectively operating one of the microwave signal oscillators. The line lengths of the branch lines are set such that the output impedance of the microwave signal oscillator connected thereto, which is measured from a branch point for connecting the transmission line and the branch line, is at maximum when the microwave signal oscillators are inoperative. The relation L=(.lambda./2)(k-1) (k is a natural number) is satisfied where L is a distance along the transmission line between adjacent branch portions of the branch lines connected to the transmission line, and .lambda. is a predetermined operational wavelength.

REFERENCES:
patent: 3092789 (1963-06-01), Cremin
patent: 4516085 (1985-05-01), Effinger et al.

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