TVRO receiver with surface mounted high frequency voltage-contro

Details TVRO receiver with surface mounted high frequency voltage-contro TVRO receiver with surface mounted high frequency voltage-contro

1986-08-25

1987-11-24

Masinick, Michael A.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455318, 455327, 331107DP, 331177V, H04B 126, H03B 512

Patent

active

047094095

ABSTRACT:
A TVRO receiver utilizes an improved voltage-controlled oscillator (VCO) of the surface mounted type which has a wide bandwidth of operation extending into the microwave frequency range. The VCO comprises a dielectric substrate with a patterned-metal layer on one side and a surface mounted oscillator on the patterned-metal side of the substrate. The oscillator comprises amplifying means which produce an oscillating output by the use of regenerative feedback means including an open-circuit-stub inductance formed in the patterned metal layer, and a tunable resonant circuit coupled to the amplifying means in order to control the frequency of the oscillating output. The resonant circuit includes a short-circuit-stub capacitance formed within the patterned middle layer, at least one variable capacitance diode in series with the short-circuit stub, and means for applying a controllable tuning potential to the resonant circuit.

REFERENCES:
patent: 3407363 (1968-10-01), Kaiser et al.
patent: 3569865 (1971-03-01), Healey, III
patent: 3579115 (1971-05-01), Goncharoff et al.
patent: 3671868 (1972-06-01), Sanders
patent: 3982211 (1976-09-01), Endersz
patent: 4340975 (1982-07-01), Onishi et al.
patent: 4494081 (1985-01-01), Lea et al.
patent: 4500854 (1985-02-01), Meyer
patent: 4523159 (1985-06-01), Dobrovolny
patent: 4619001 (1986-10-01), Kane
patent: 4641369 (1987-02-01), Grote et al.

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