Active receiving array antenna
AssigneeEADS Deutschland GmbH
InventorKlaus Solbach
Life of this patent
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Abstract
A receiving array antenna with a variety of channels for converting received signals from receiving antenna elements (ANT) into an intermediate frequency signal (ZF) by using a circuit having one or several preamplifiers (LNA) and a mixer (MIX) connected in series, whereby a centrally generated local oscillator signal (LO) and calibration signal (CAL) are supplied to the circuit. A common distribution network (VNG) is available for the central oscillator signal (LO) and calibration signal (CAL), which is interconnected in such a way that the central local oscillator signal (LO) and calibration signal (CAL) is coupled into the circuit at the output of the receiving antenna element (ANT).
Claims13
A receiving array antenna system for converting received signals from a plurality of receiving antenna elements into a corresponding plurality of intermediate frequency signals, said system comprising:
- a plurality of channels corresponding to said plurality of receiving antenna elements wherein each of said plurality of channels includes one of said plurality of receiving antenna elements and, a preamplifier connecting in series with a mixer wherein an output of said mixer provides one of said plurality of intermediate frequency signals;
- a circuit outputting a centrally generated local oscillator signal and a calibration signal;
- and
- a common distribution network receiving said centrally generated locally oscillator signal and said calibration signal for coupling said central local oscillator signal and said calibration signal into each of said plurality of channels at an output of each of said plurality of receiving antenna elements.
Dependencies are inferred from the claim text.