Switch in UHF bandpass

Details Switch in UHF bandpass Switch in UHF bandpass

2007-04-24

2007-04-24

Le, Lana (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S313000, C455S307000, C455S188100

Reexamination Certificate

active

10475885

ABSTRACT:
By using ICs with combined inputs for the VHF-high bandpass circuit and the UHF bandpass circuit, undesirable resonances occur which are caused by one of the tuned circuits. The problem is solved by providing a switching means for decoupling the UHF bandpass circuit from the combined inputs when a VHF-high band signal is received by the VHF-high bandpass circuit. The switching means comprises a switch coupled between the UHF bandpass circuit and the common inputs.

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