Telecommunications – Wireless distribution system
Patent
1980-11-28
1983-01-18
Ng, Jin F.
Telecommunications
Wireless distribution system
455282, 455286, 333204, H04H 100, H04B 118
Patent
active
043695183
ABSTRACT:
A compact antenna system for use in connection with pay television reception comprises a resonant cavity including a small dipole, the latter being connected to a circuit board containing circuitry for converting the received pay television signal to a frequency usable by the television receiver of the subscriber. The member defining the cavity is affixed to the circuit board, which in turn is mounted upon a holder attached to the exterior of the structure in which the television receiver is located. The circuit board includes a preamplifier-filter stage to filter extraneous signals and to promote preamplification of the signal from the antenna. The preamplified signal goes to the input of a mixer and from there is filtered to the frequency of the channel selected by the user of the television receiver. At least one triangular circuit element is utilized in the preamplifier and in the mixer.
REFERENCES:
patent: 3523251 (1970-08-01), Halstead
patent: 3550010 (1970-12-01), Byers
patent: 3566315 (1971-02-01), Vinding
patent: 4135170 (1979-01-01), Baril et al.
Ng Jin F.
Tanner Electronic Systems Technology, Inc.
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