Low level controllable radio frequency phase shifter

Details Low level controllable radio frequency phase shifter Low level controllable radio frequency phase shifter

1977-12-19

1979-07-17

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333164, H03H 720, H03H 722, H01P 118

Patent

active

041617053

ABSTRACT:
The invention involves in-phase power splitting from an input into separate pairs of paralleled input variable circuits which may be linear amplifiers or linear controlled attenuators. The outputs of these circuits feed the input branches of a pair of 180.degree. hybrid circuits, the outputs of those hybrids providing the inputs of a 3 db quadrature coupler. An output of this coupler then provides the overall output which is shifted in phase with respect to the original input as a function of the gain control signal applied differentially between the variable circuits of the aforementioned pairs as the cosine of the desired phase angle in respect to the first pair of circuits and in accordance with the sine of the desired phase angle at the control terminals of the second pair of circuits.

REFERENCES:
patent: 3323080 (1967-05-01), Schwelb et al.
patent: 3354459 (1967-11-01), Schwartz et al.
patent: 3440570 (1969-04-01), Kasper
patent: 3458836 (1969-07-01), Engelbrecht

Affiliated with

Also associated with

Rating

Low level controllable radio frequency phase shifter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low level controllable radio frequency phase shifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low level controllable radio frequency phase shifter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-319308