Steering ball joint seal with self-centering capability

Ball joint with sealing bellow

📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 204 KB

Retro-directive array with beam steering

Retro-directive array with beam steering capability, made by coupled, self-oscillating mixers

✍ Michail G. Christodoulou; Dimitrios P. Chrissoulidis 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB

## Abstract A novel, phase‐conjugator array for active, retro‐directive operation has been made by use of three dual‐gate, self‐oscillating mixers (SOM's), mutually locked by use of 6 dB hybrid couplers. The coupling network incorporates the load of the oscillators. Reduced LO penetration has been