Accession Number:

AD0363416

Title:

SYNCHRONOUS FILTER STUDY

Descriptive Note:

Final rept., 1 Apr 64-31 May 65,

Corporate Author:

GENERAL ELECTRIC CO SYRACUSE N Y ELECTRONICS LAB

Personal Author(s):

• Danielson,Gordon
• Schindler,Hans
• Zampini,Joseph

Report Date:

1965-05-31

Pagination or Media Count:

104.0

Abstract:

The synchronous filters to be discussed here are basically bandpass filters whose bandpass characteristics are obtained by a combination of lowpass filters and modulation techniques employing semiconductor switches. The result is a bandpass filter whose bandwidth is determined by the lowpass filters and whose center frequency is determined by the frequency associated with the seiconductor switches. Desirable features of such a filter are 1 the shape of the bandpass characteristic and the center frequency can be independently controlled, 2 the overall Q can be made extremely high and 3 the circuit techniques are compatible with microelectronics. Undesirable features are 1 circuit complexity and 2 spurious responses. Author

Descriptors:

• *ELECTRIC FILTERS
• *BANDPASS FILTERS
• PERFORMANCE(ENGINEERING)
• CAPACITORS
• NOISE(RADIO)
• CIRCUITS
• MICROELECTRONICS
• FREQUENCY
• DIODES
• LOW PASS FILTERS

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE