Electromagnetic lens

Details Electromagnetic lens Electromagnetic lens

2005-12-27

2005-12-27

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S780000, C343S91100R

Reexamination Certificate

active

06980169

ABSTRACT:
In an exemplary apparatus implementation, an electromagnetic lens includes: an input section including multiple input probes and a curvilinear input reflector; an output section including multiple output probes and a curvilinear output reflector; and a coupling section including a coupling slot and a curvilinear coupling wall. In another exemplary apparatus implementation, an electromagnetic lens includes: a first layer; a second layer adjacent to the first layer; the second layer including multiple input probes, a curvilinear input reflector, and a first curvilinear coupling wall; a third layer adjacent to the second layer, the third layer including a coupling slot; a fourth layer adjacent to the third layer; the fourth layer including multiple output probes, a curvilinear output reflector, and a second curvilinear coupling wall; and a fifth layer adjacent to the fourth layer.

REFERENCES:
patent: 2004/0174299 (2004-09-01), Casas et al.
patent: 2004/0223476 (2004-11-01), Jose et al.
patent: 2004/0224637 (2004-11-01), Silva et al.
patent: 2005/0075070 (2005-04-01), Crilly, Jr.
Y.T. Lo & S.W. Lee, Antenna Handbook, vol. II, Van Nostrand Reinhold, New York, 1993, pp. 15-51 to 15-61, ibid pp. 19-19 to 19-23.
Walter Rotman, “Wide Angle Scanning with Microwave Double-Layer Pillboxes”, IRE Transactions on Antennas and Propagation, vol. 6, pp. 96-105; Jan., 1958.

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