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| Referring now to FIGS. 1 and 2, there is shown a communications cable which may incorporate the ... |
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| Geometrical control of device corner threshold |
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| Universal frequency synthesizer |
| OF THE INVENTION In the accompanying drawing, which forms a part of the specification and are to ... |
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| Multi-layer reflector for electroluminescent device |
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| Single filament semiconductor laser with large emitting area |
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| Semiconductor laser having a doped surface zone |
| What is claimed is: 1. A semiconductor laser having a semiconductor body comprising a resonator and ... |
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| Planar epitaxial refill using liquid phase epitaxy |
| We claim: 1. A method of refilling grooves in a silicon wafer of predetermined conductivity type by ... |
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| Semiconductor integrated circuit device with a high tolerance against abnormally high input voltage |
| I claim: 1. A semiconductor integrated device having a high tolerance against abnormally high input ... |
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Obstacle sensor operating by collimation and focusing of the emitted wave
| Details |
Inventors: Baldi, Franco;
Assignee:
Primary Examiner: Lee; John D.
Assistant Examiner:
Attorney, Agent or Firm: Bucknam and Archer
Millimetric wave device, capable of operating as a signal transceiving antenna, with an optimum image definition even at extremely short distances (about 1 mm). Depending on the more or less concentration of the waves, the so realised radar antenna adopts, in its different configurations, a curved front optics, or an optics of hemispherical, aspherical, parabolic, concede, convex, biconcave, biconvex or stepped optics. The real focal length of the radar is shorter than that of the lens utilised in the antenna. The standard dimensions of the electronic transception and processing circuit part are very limited and contained. |
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DETAILED DESCRIPTION I claim: 1.
An obstacle sensor operating by collimation and focusing of emitted microwaves, said obstacle sensor including: a) a stabilized feeding unit (1); b) a lens antenna (5) operatively connected to said stabilized feeding unit; c) an analysis and processing circuit (7) operatively connected to said stabilized feeding unit; and d) a wave pulse generator (18) operatively connected to said feeding unit and said lens antenna; said lens antenna including an external envelope (10), a body (11) provided in said external envelope, a generating cavity (8) containing a microwave generating diode (9) and a diode feeding anode (19) arranged in a seat (13) acting as a cathode for said generating diode, a polarization circuit (12), a passive intermediate reflector (15, 16), and at least one optical apparatus including at least one focusing and concentrating lens (14, 17) of microwaves emitted along an axis of the antenna; whereby the microwaves emitted by said antenna are focused and concentrated by said at least one optical apparatus in only one coherent and phased beam, and unidirectional reflected microwaves or echo, derived from sensing an obstacle, are sensed by said lens antenna and analyzed and quantified by said microwave generating diode.
2.
The obstacle sensor as defined in claim 1, wherein said microwave generating diode is an IMPATT microwave generating diode.
3.
The obstacle sensor as defined in claim 1, wherein said microwave generating diode is a GUNN diode and the unidirectional reflected microwaves or echo are analyzed and quantified thereby depending on the difference in frequency shift of the GUNN diode, as energy and temperature change.
4.
The obstacle sensor as defined in claim 1, wherein the body (11) and the seat (13) are constituted by a housing (28) closed by a flange (26) and containing a frequency selection apparatus (24), the microwave generating diode (9) and the anode (19) feeding said microwave generating diode (9); said housing (28) forming the cavity (8) and being open toward the outside through an iris (27)
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Quantum Computing 
