A SELF-BIASED FET MULTIPLIER M. Cuhaci and M.G. Stubbs ABSTRACT A self-biased FET multiplier circuit that utilizes the gate non-linearity to generate harmonics of the input signal is presented. The concept was demonstrated with designs of 4 to 16 GHz and 14 to 56 GHz X4 multipliers. Although the approach does not exhibit conversion gain, it is very attractive for MMIC applications because it

DESIGN OF IMPATT-OSCILLATORS IN THE E- AND W-BAND W. Hetzner * ABSTRACT IMPATT-oscillators are often used to generate small and medium RF power in the millimeter wave range (E-band 60-90 GHz, W-band 75-110 GHz). This paper describes the design and the construction of oscillators which are able to provide excellent output power at all frequencies in a complete waveguide band. This is achieved

OPrICALLY 'lUNED AND EM MJOOIATED X-BAND DIELEC'IRIC REOONA'lOR Q9CILIA'lOR . I ** * P.R. Herczfeld * , A. Daryoosh , C. DAscenzo, M. Contanno . A. Rosen++ " ABSTRl>CT This paper describes results obtained in the optical control of a Dielectric Resonator Oscillator operated at X-band. A commercially available DRO device was modified to facilitate optical control of its output characteristics.

PERFORMANCE OF AN InP MISFET X-BAND OSCILLATOR AND K-BAND OSCILLATOR-DOUBLER R. SOARES,* J.P. CASTELLETTO, * P. LEGAUD * AND M. ARMAND*... ABSTRACT Results for an InP MISFET 1.5 µm x 300 µm device used as an oscillator and an oscillator doubler are presented. A fundamental frequency oscillator using the transistor in the reverse channel mode and dielectric resonator stabilised was designed to oper

A CC1v1PUTER CONI'ROLLED MEASUREMENI' TErnNlQUE AND ERROR CORRECTED WIDEBAND BACKSCATTERING Hans-Jiirgen Meckelburg1) and Heinz Chaloupka2) ABSTRACT This paper presents a method for eliminating systematic errors in backscattering measurements. The errors are caused by antenna cross-talk, environmental reflections, anterma dispersion etc. The method is based on a computer controlled measure

CHARACTERIZATION AND MEASUREMENT OF RADIOMETER STABILITY G.Rau, R.Schieder, B.Vowinkel Abstract For the characterization of radiometer noise and stability a new and very practical method is introduced. It consists of the measurement of the "Allan-variance" well known for the characterization of the stability of frequency standards. The plot of the Allan variance versus integration time all

A CONTINUOUSLY OF ATMOSPHERIC TUNED 53 - 59 GHz RADIOMETER TEMPERATURE PROFILES FOR MEASUREMENT E. Winberg, J. Askne, and G. Skoog. ABSTRACT The design of a continuously tuned 53 -59 GHz radiometer for measurement of the atmospheric temperature profile is presented. The broadband solution makes the radiometer cost-effective and permits observations on a large number of frequencies which in

THE HIGHLY SHAPED BEAM TELEMETRY ANTENNA FOR THE SPOT SATELLITE PAYLOAD DO BOI H. Abstract 8.31 GHz, is a highly beam antenna, principally-constituted by a symmetric reflector of profile, and illuminated by an adequate primary feed. Two solutions The telemetry antenna and functioning in the frequency of primary feed - developed band 8.2 - for the SPOT satellite payload, shaped shaped are