Abstract

Optical distribution of control signals in electronically steered phased array antennas is considered. A demonstration experiment in which a high-speed hybrid GaAs optoelectronic integrated circuit (OEIC) was used to control a 28.2 GHz eight-element phased-array antenna is described. The OEIC, which accepts a serial optical control signal as input and converts it to 16 demultiplexed parallel outputs, was used to control the monolithic GaAs phase shifters of a Ka-band patch panel array antenna. Antenna pattern switching speeds of 2.25 mu s, limited by interface circuitry, were observed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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