Patent · US Expired

Method and apparatus for controlling an active antenna

US5367305A · kind A · utility

16Cited by

6References

22Claims

0Family size

Assignee

Dornier GmbH · DE

Inventors

Michael Lothar Völker · Markdorf, DE
Stefan Weiss · Trostberg, DE
Rudolf Zahn · Markdorf, DE

Key dates

Filing date	Jul 26, 1993
Grant date	Nov 22, 1994
Priority date	—
Expiry date	Jul 26, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q3/2676
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of controlling an active antenna comprising a matrix of individual transmitting/receiving elements. Two optical frequencies are superposed to generate an optical beat signal in the microwave frequency range. After electrical/optical conversion the beat signal is fed with a defined phase and amplitude to the individual transmitting/receiving elements of the antenna.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.