180 degree dipole phase shifter

Details 180 degree dipole phase shifter 180 degree dipole phase shifter

1984-02-07

1986-05-06

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343822, H01Q 916

Patent

active

045875251

ABSTRACT:
A dipole phase shifter for use in a phased array antenna includes an insulating substrate having first and second sides. A dipole element having first and second conductive dipole arms is formed on the first side of the insulating substrate and a PIN/NIP diode pair is mounted on the second side of the insulating substrate and electrically-connected to the first and second dipole arms, respectively. A coaxial RF transmission line having a center conductor extending through the insulating substrate connects an input signal to the phase shifter. Quarter-wave transformers are connected between the center conductor and the diodes to compensate for the forward and reverse bias reactances thereof. The first and second dipole arms serve as groundplanes for the quarter-wave transformers. The center conductor also serves as a common bias line which allows forward biasing of one diode and, simultaneously, reverse biasing of the other diode. The diodes therefore act as a single pole, double throw switch to effect a 180 degree change in phase of the input signal applied to the phase shifter.

REFERENCES:
patent: 2976534 (1961-03-01), Kampinsky
patent: 3803621 (1974-04-01), Britt

Affiliated with

Also associated with

Rating

180 degree dipole 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 180 degree dipole phase shifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 180 degree dipole phase shifter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1577350