CRYSTAL FILTERS

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Abstract:

A study is presented that shows how to determine theoretically, in advance, and with sufficient accuracy the response characteristic of a filter using the inductively coupled lattice equivalent. Methods of computation of the attenuation characteristic of the inductively coupled lattice equivalent are established. Elements with finite Q factors including the crystals are considered in these computations in order to approach as much as possible the characteristics of an actual filter. The computed results are plotted and compared with experimental data. The effect of the presence of spurious responses of the crystals on the response characteristic of the filter is studied in detail and figures helping specify the crystals are given. Author

Author(s):
Niederman, B. ; Malinowski, S. ; Schennberg, D.
Author Organization(s):
MOTOROLA INC CHICAGO ILL
Descriptive Note:
Quarterly rept. no. 31 Oct 60-1 Jan 61.
Pagination:
0056

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA36 039SC85300
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*BANDPASS FILTERS, *CRYSTAL FILTERS, *RADIOFREQUENCY FILTERS, *VERY HIGH FREQUENCY, ATTENUATION, BROADBAND, CRYSTAL LATTICES, CRYSTALS, ELECTRICAL NETWORKS, MATHEMATICAL ANALYSIS
Report Date:
1960 Jan 01