FREQUENCY CONVERTER UNITS FOR L-BAND, S-BAND, C-BAND AND X-BAND.

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Abstract:

A high-pass filter using smooth tapers instead of multiple step transformers for input and output impedance matching was designed and is being fabricated. A flat iris band-pass filter for the L-band converter was constructed and tested. Another commercial low-pass filter having a 10 Gc cutoff was tested for suitability in these frequency converters. A crystal mount suitable to the needs of the converter was designed and built, and is now being used satisfactorily. Tests were made to determine the power handling capability of a 1N53 crystal at the temperature of dry ice. At 15 mw drive the conversion loss deteriorated 6 db in four hours. A 1N26A crystal at room temperature showed no deterioration in four hours at a drive of 40 mw. The frequency converting properties of varactor diodes were explored in the knowledge that such diodes readily handle relatively large voltages. Preliminary results are quite discouraging, and this approach has been abandoned. Author

Author(s):
No Author(s) Identified
Author Organization(s):
ELECTROMAGNETIC TECHNOLOGY CORP PALO ALTO CALIF
Descriptive Note:
Interim development rept. no. 6, 1-31 Dec 63.
Annotation:
Frequency converter units for L-Band, S-Band, C-Band, and X-Band.
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
NObsr89536
Task Number(s):
9294
Project Number(s):
SF0100201
 Subject Terms
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*SEMICONDUCTOR DIODES, MICROWAVE FREQUENCY, FREQUENCY CONVERTERS, EXTREMELY HIGH FREQUENCY, L BAND, S BAND, C BAND, X BAND, HIGH PASS FILTERS, BANDPASS FILTERS, MIXERS(ELECTRONICS), CRYSTAL RECTIFIERS, VARACTOR DIODES, WAVEGUIDE IRISES, RADIOFREQUENCY POWER, LOW PASS FILTERS, SCHEDULING
Report Date:
1964 Jan 15