A LOW NOISE INDIUM PHOSPHIDE REFlECTION AMPLIFIER R.M. Corlett, I. Griffith, J.J. Purcell ABSTRACT Noise reflection figures as low as 8 dB have been amplifiers operating over J -band measured (12-18 for GHz). Indium Phosphide A single-stage, low noise, reflection amplifier circuit has been designed to provide a gain of 8 dB at 15 GHz., with a 1 GHz bandwidth. The effect of the package i

POWER AMPLIFICATION OF MICROWAVE FM COMMUNICATIONS USING A PHASE-LOCKED VOLTAGE-TUNED OSCILLATOR SIGNALS M. E. Hines, R. S. Posner, A. A. Sweet* I. ABSTRACT AND INTRODUCTION This paper describes the use of a "single-stage" phase-lock-loop oscillator to provide high gain power amplification of FM communication signals as used in radio relay of multiplex telephone and television. The paper is larg

NOISE AND MODULATION PROPERTIES OF IMPATT-DIODE AMPLIFIERS J.J. Goedbloed and M.T. Vlaardingerbroek ABSTRACT. A new theory for the quantitative description of the noise and modulation properties of IMPATT-diode amplifiers has been developed, based on the method used in the large-signal theory of noise in IMPATT-diode oscillators by the present authors. The usefulness of the theory will be ill

SUM AND DIFFERENCE RADIATION PATTERNS OF A CORRUGATED CONICAL HORN BY MEANS OF LAGUERRE-GAUSSIAN D. BI':rl'ER, C. AUBRY FUNCTIONS * ABSTRACT This communication describes a new method to predict the HE from a narrow flare angle corrugated conical horn. A modal expansion of the aperture field in terms of orthogonal Laguerre-Gaussian functions is used. The radiated field is obtained from Kir

EARTH STATION ANTENNA USING REFLECTING BEAM-WAVEGUIDE FEED Shooji Sooma, Ikuro Sa to, Susumu Tamagawa Isao Mori and Kiyotsugu Ishii ABSTRACT The analysis and experimental evaluation of a reflecting beam-waveguide feed for an earth station antenna using two plane and two off-set paraboloidal reflectors is presented. Taking the mode matching theory in an optical resonator, the electromagneti

THE BODY CALIBRATION ENCLOSURE J. Keen OF A LARGE PARABOLOIDAL ANTENNA USING A CRYOGENIC BLACK- Nigel ABSTRACT The aperture efficiency of the 100-meter radiotelescope has been measured in the prime focus configuration at 5 GHz. Calibration was performed by inserting the feed-horn alternately in two specially designed black-body enclosures, the effective temperatures of which were provided

ACOUSTIC QUESTIONS MODEL~-BAND AIRCRAFT ANTENNA RADIATION COVERAGE H. S. Hayre* ABSTRACT The number and location of cavity-blocked T-slot antenna for a specified radiation coverage on F-102 aircraft were optimized using an acoustic airframe model, and a special O.2 MHz (thickness mode) spherical transducer to model the antenna. The model results were verified using the full-scale electromag

NEW ANTENNAS Friedrich ON NEW NONMETALLIC Zboril* MATERIALS R. AB srRACT Carbon and boron composites replace alloys in structures. Their favorable weight to strength ratio should not be impaired by additional metallic ground planes for antennas. Foremost comes lightning protection as these materials cannot handle energy surges. In cooperation with the Lightning and Transient Research Institute



SOLDERED PIEZOELECTRIC TRANSDUCER A. SCHAER ACOUSTIC-WAVE COMPONENTS ABSTRACT Presented are results obtained from acoustic-wave components and devices employing "soldered piezoelectric transducer" technology and operating in the VHF and UHF bands. Based upon the intermetallic diffusion of two layers of indium, deposited beforehand on both the propagation substrate and the piezoelectric transd