H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/30
H01Q 13/02 (2006.01) E01H 13/00 (2006.01) H01Q 19/08 (2006.01) H05B 6/72 (2006.01)
Patent
CA 1082801
ABSTRACT OF THE DISCLOSURE A horn antenna for transmitting electromagnetic energy is combined with a parasitic element in coaxial, spaced relation- ship to define an annular aperture through which the energy is propagated. Radiation patterns occurring in the E and H planes of the antenna combination vary in response to both frequency of the energy and size of the parasitic element and combine to produce predetermined fields of radiation. Embodiments are disclosed which develop an outwardly diverging conical radiation pattern that is useful in fog clearing operations using a minimum of effective radiated power. Similar embodiments may be operated under swept frequency conditions to produce a continually changing radiation pattern that finds utility in radar systems.
274000
Hamid Michael A.
Lysons Horace
Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence
Michaels & Associates
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