Communications: radio wave antennas – Antennas – Having electric space discharge device
Patent
1975-06-25
1977-02-15
Smith, Alfred E.
Communications: radio wave antennas
Antennas
Having electric space discharge device
343802, 343873, H01Q 142, H01Q 316
Patent
active
040084779
ABSTRACT:
A novel antenna is disclosed which provides inherent filtering action by ch the frequency response curve of the antenna can be shaped. In the preferred inventive embodiment, the antenna comprises at least one elongated receiving element, and preferably two such elements in the form of a dipole, both elements being constructed, at least in part, of an electrically resistive material. A detector, such as a diode detector, is directly coupled to the receiving elements. The resistance of the receiving element and the capacitances of the receiving element and the detector form a distributed parameter RC filter, the values of which parameters can be carefully controlled so as to provide the desired frequency response curve shaping. In the preferred inventive embodiment, a conductive strip is disposed along the length of and preferably to both sides of each receiving element, with a layer of dielectric material being sandwiched therebetween, whereby the filtering action is enhanced.
REFERENCES:
patent: 3783448 (1974-01-01), Brodwin
patent: 3805269 (1974-04-01), Fujimoto et al.
Babij Tadeusz M.
Bowman Ronald R.
Wacker Paul F.
Englert Alvin
Moore David K.
Pawlikowski Eugene J.
Smith Alfred E.
The United States of America as represented by the Secretary of
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