Wideband, synthesizer switched element voltage controlled oscillator
Номер патента: CA1175509A
Опубликовано: 02-10-1984
Автор(ы): James K. Gehrke, Richard A. Rose, Roger Vilmur, Terrance J. Goedken
Принадлежит: Motorola Inc
Опубликовано: 02-10-1984
Автор(ы): James K. Gehrke, Richard A. Rose, Roger Vilmur, Terrance J. Goedken
Принадлежит: Motorola Inc
Реферат: Abstract An exceptionally wideband, synthesizer controlled voltage controlled oscillator is disclosed which is characterized by a plurality of pin diode frequency shift networks which, when actuated shifts the frequency of the oscillator in selectable binary steps within a wide frequency range in the order of 48 MHz. Special means are included to prevent undesireable parasitic oscillation modes when such frequency shift networks are in an inactuated, switched off mode. A multiple varactor tuning circuit is provided for selecting a precise frequency within a relatively narrow frequency band on the order of 6 MHz.
Voltage controlled oscillators
Номер патента: GB2336492A. Автор: Stefan Lichterfeld. Владелец: Motorola GmbH. Дата публикации: 1999-10-20.