Patent ID: 11921225
Assignee: SEESCAN, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. An antenna system, comprising:
an antenna array having multiple antenna elements generating input signals successively 90 degrees out of phase such that the input signals have a relative phase of zero, 90, 180, and 270 degrees;
a transmission line connecting the antenna elements at zero degrees to the antenna element at 90 degrees wherein the length of the transmission line may generate a 90 degree phase shift aligning the phase of the input signal at zero degrees to the phase of the input signal at 90 degrees;
a transmission line connecting the antenna elements at 180 degrees to the antenna element at 270 degrees wherein the length of the transmission line may generate a 90 degree phase shift aligning the phase of the input signal at 180 degrees to the phase of the input signal at 270 degrees;
a first transformer to receive signal from the 90 degree antenna elements and output a signal having no phase adjustment;
a second transformer to receive signal from the 270 degree antenna elements and output a signal having an 180 degree phase adjustment that may align with the phase of the first transformer output; and
a coupling of the first and second transformers such that their outputs generate a combined, phase aligned output signal.