Accession Number : AD0427609


Title :   AN L-BAND TUNNEL DIODE OSCILLATOR.


Descriptive Note : Quarterly progress rept. no. 5, 1 June-31 Aug 63,


Corporate Author : RADIO CORP OF AMERICA MOORESTOWN N J


Personal Author(s) : Nelson,D E ; Gold,R ; Casterline,E T


Report Date : 31 Dec 1963


Pagination or Media Count : 25


Abstract : A study was made of the effect of diode peak current on diode speed index and cutoff frequency. The effect of different crystalline planes on diode current density (hence high frequency capability) was also investigated. A simple transistor regulator for tunnel-diode oscillators was devised. This regulator reduced the frequency variation, due to a = 10% variation in bias voltage, from over 100 mcs to less than 4 mc. Two tunable tunnel-diode oscillators were tested which gave minimum power outputs of 19 and 22 mw respectively over the required 1660 to 1700 mc tuning ranges. Both incorporated transistor regulators and easily met the required = 2 mc maximum frequency variation for a = 10% change in bias voltage. One oscillator was delivered as a prototype model and the second is ready for delivery. (Author)


Descriptors :   TUNNEL DIODES , MICROWAVE OSCILLATORS , L BAND , S BAND , RADIOSONDES , RADIOFREQUENCY POWER , VOLTAGE REGULATORS , TRANSISTORS , POWER SUPPLIES , CRYSTAL STRUCTURE , GALLIUM ALLOYS , ARSENIC ALLOYS , RESISTORS


Distribution Statement : APPROVED FOR PUBLIC RELEASE