HIGH roWER HIGHER ORDER MULTIPLICATION WITH STACK VARACTORS T.Berceli, L.Bus, F.Rakosi ABSTRACT The high power, both theoretically higher order multiplication is investigated and experimentally. In the theory, a large signal device model is used. A family of high power single stage multipliers using stack varactors has been developed with multiplication factors of 3, 4 and 6 for 1 and 2 GHz

STABLE MILLIMETER SOURCE USING AVALANCHE DIODE FREQUENCY MULTIPLICATION P.A. ROLLAND, E. PLAYEZ and G. SALMER ~ ABSTRACT The main characteristics of avalanche frequency multipliers are presented in order to show their capabilities when operated as stable millimeter wave sources. Performances and frequency dependance upon operating parameters such as temperature, input drive level, as

AN IMPROVED MICROWAVE VTO IN A TO 8 PACKAGE M. FACHE ABSTRACT A new miniaturized VTO bility and an improved is described, the aim spectral purity. of the design was a high sta- The high stability is obtained by using a medium power bipolar transistor developed by L.T.T., which operates with a strong current and a low collector emitter voltage. The rejection of the harmonics is provided by a

THIN FILM, VARACTOR-TUNED, OCTAVE BANDWIDTH OSCILLATORS Ronald N. Buswell and William D. Heichel ABSTRACT The design and construction of thin film, L- and S-Band octave bandwidth, varactor-tuned oscillators are described. A minimum power output of 10 mW was achieved from 1 to 2 GHz and from 2 to 4 GHz, and the overall performance is equal or superior to that of packaged component oscillators

WIDEBAND PULSE AMPLIFIER F. Meyer ABSTRACT In order to build a Gigabit/s pulse amplifier for medium power applications a new transistor distributed amplifier configuration was developed and tested. The amplifier is built in hybrid technique empolying 5 GHz fT bipolar transistors. The five section amplifier has a frequency response from DC to 3.6 GHz. Results achieved were a 10 dB gain, 130 ps st

HYBRID M.I.C. DIGITAL FREQUENCY DIVIDERS AT 4,5 AND 9 GHz J. Noordanus ABSTRACT A digital factor factor These small divider is described frequency frequency with which allows division by a a 2 at an input 4 with results of 4,5 GHz and divides of 9 GHz. a thin film circuit of beam lead components element and chip is an input are obtained combined indicate feasible are given. by using di

Investigation Breakdown MM. M.H. of hFE Degradation Multicarrier in Microwave Transistors due to E-B Under Gibson, Conditions M. Pollacsek, S. Stryk ~ T.P. McElhone, ABSTRACT The use of R.F. transistor power amplifiers under multicarrier operating conditions in satellite transponders can create reliability problems incompatible with a long mission life, due to the high instantaneous volta





CYLINDRICAL DIELECTRIC RESONATORS AND THEIR MICROWAVE CIRCUITS M. W. Pospieszalski APPLICATIONS IN TEM-LINE ABSTRAC'l' A cylindrical sample of low-loss, high-r dielectric placed between two parallel conducting plates perpendicular to the sample axis forms microwave resonator. A simple approximate method for predicting the resonant frequencies of the TE modes of this structure is developed. The