Electronic phase shifting circuit for use in a phased radar ante

Details Electronic phase shifting circuit for use in a phased radar ante Electronic phase shifting circuit for use in a phased radar ante

1991-12-19

1993-05-04

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333161, H01P 1185

Patent

active

052085643

ABSTRACT:
A phase shifting circuit (10) which is especially suitable for use as a 180.degree. phase bit for an antenna element in a phased radar antenna array includes a first transmission line (16) connected between first and second diodes (22,24), which are connected to input and output terminals (12,14) respectively. Second and third transmission lines (18,20) are connected in series with each other between the input and output terminals (12,14). A third diode (26) is connected between the junction (28) of the second and third transmission lines (18,20) and ground. The first transmission line (16) is less than one-quarter wavelength long at the operating frequency of the circuit (10), whereas the second and third transmission lines (18,20) are each approximately three-eighths wavelength long. Forward biasing the diodes (22,24,26) causes substantially all of the signal to propagate from the input terminal (12) to the output terminal (14) through the first transmission line (16), producing minimum phase shift. Reverse biasing the diodes (22,24,26) causes a major portion of the signal to propagate through the second and third transmission lines (18,20), producing maximum phase shift.

REFERENCES:
patent: 3718873 (1973-02-01), Garver
patent: 3982214 (1976-09-01), Burns
patent: 4630010 (1986-12-01), Yarman

Affiliated with

Also associated with

Rating

Electronic phase shifting circuit for use in a phased radar ante does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic phase shifting circuit for use in a phased radar ante, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic phase shifting circuit for use in a phased radar ante will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1977856