Telecommunications – Transmitter – With coupled antenna
Patent
1984-05-21
1986-06-03
Ng, Jin F.
Telecommunications
Transmitter
With coupled antenna
455 99, 343793, 343820, H04B 104
Patent
active
045934126
ABSTRACT:
A low-power transmitter for garage door operator systems and the like wherein harmonics of the fundamental frequency are suppressed by class A or AB oscillator operation and fundamental radiation is enhanced by way of a combined inductor/radiator having conductive printed circuit extrusions on the ends thereof to effectively form a center-fed dipole antenna.
REFERENCES:
patent: 2035456 (1936-03-01), Blair et al.
patent: 2091663 (1937-08-01), Walden
patent: 3228030 (1966-01-01), Moore
patent: 3651405 (1972-03-01), Whitney et al.
patent: 3875513 (1975-04-01), Strull et al.
patent: 4004228 (1977-01-01), Mullett
Multi-Elmac Company
Ng Jin F.
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