Electromagnetic lens of the printed circuit type with a suspende

Details Electromagnetic lens of the printed circuit type with a suspende Electromagnetic lens of the printed circuit type with a suspende

1996-10-15

1999-10-12

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Antenna components

343753, 343911L, H01Q 1502

Patent

active

059661038

ABSTRACT:
An electromagnetic lens comprises two conductive sides between which there is arranged a cavity provided in its lateral portion with electromagnetic input/output coupling transitions to authorize a set of propagation laws between pairs of such inputs/outputs. Moreover, it comprises, substantially centered in the cavity, a substrate comprising a printed conductive patch of predetermined dimensions, so that the two conductive sides and the patch thus create a suspended three-plate strip line structure. The content of the cavity and the respective geometries of the cavity and of the conductive patch are chosen to comply with the propagation laws.

REFERENCES:
patent: 3392394 (1968-07-01), Caballero, Jr.
patent: 3958246 (1976-05-01), Wohlers et al.
patent: 4490723 (1984-12-01), Hardie et al.
patent: 4641144 (1987-02-01), Prickett
Marcuvitz, Waveguide Handbook, Radiation Laboratory Series, MIT, McGraw Hill Book Company 1951, pp. 390-393.
Oliner et al., Phased Array Antennas, 1972, A survey of Circular Symmetric Arrays, pp. 292-300. by Provencher, Artec House Inc.
Luneburg, Mathematical Theory of Optics, University of California Press, 1964, pp. v-xi and pp. 182-188.
Clapp, Extending the R-2R Lens to 360.degree., IEEE Transactions on Antennas and Propagation, vol. AP-32, No. 7, Jul. 1984, pp. 661-671.
Thournel, Les Antennes, Calcul Et Conception Des Dispositifs En Ondes Contimetriques Et Millimetriques, Cepadues--Editions 1990, pp. 412-419.

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