We present a design for an active antenna array employing triangular Joseph
son junction (JJ) sub-arrays as rf oscillator sources. The sub-arrays are k
ept in sync by coupling to a closed serpentine discrete JJ ladder. Phase sh
ifts are introduced by adding external magnetic flux into the JJ ladders be
tween sub-arrays, Phase shifting distortions are minimized by allowing only
two contiguous sub-arrays on any row segment.