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A SELF-BIASED FET MULTIPLIER
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
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
OPTICALLY TUNED AND FM MODULATED X-BAND DIELECTRIC RESONATOR OSCILLATOR
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
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 COMPUTER CONTROLLED AND ERROR CORRECTED WIDEBAND BACKSCATTERING MEASUREMENT TECHNIQUE
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
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 TUNED 53 - 59 GHz RADIOMETER FOR MEASUREMENT OF ATMOSPHERIC TEMPERATURE PROFILES
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
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
FULLY COMPUTER-OPTIMISED DESIGN OF CIRCULAR CORRUGATED HORNS
RECTANGULAR CORRUGATED HORNS-ANALYSIS, DESIGN AND EVALUATION