ACCURATE DESIGN OF FERRITE TOROID PHASE SHIFI'ERS THEORETICAL AND EXPERIMENTAL RESULTS J. Svedin"', ABSTRAcr B. Carlegrim"', S. Hagelin'" - The dual ferrite toroid latched phase shifter (VPS) is analyzed using the finite element method (FEM) to predict useful design properties as differential phase shift and the dispersion of higher order modes. In this paper, the static magnetization of the fer

SILICON MONOLITHIC MILLIMETER WAVE IMPATT OSCILLATORS J.F. Luy, K.M. Strohm+, J. Buechler* ABSTRACT The good efficiency of silicon IMPATT diodes in the upper frequency range and the relatively high thermal conductivity of silicon lead to the concept of a monolithically integrated coplanar IMPATT oscillator. This concept is realized in a prototype for W-band frequencies in CW operation. Fir

ANALYSIS AND DESIGN OF 130-250 GBz FREQUENCY MULTIPLIERS Timo Tolmunen and Antti Ra.isanen Abstract In this research the feasibility of developing high efficiency mm-wave multipliers in the frequency range of 130-250 GBz has been studied. A frequency quadrupler for 140 GBz and frequency doublers for 183 GBz and 230 GBz have been analyzed and optimized. The development of high efficiency fre

A MILUMETER W AVB QUANTUM WELL DIODE OSCILLATOR. H. Gronqvist, A. Rydberg, H. Hjelmgren, J. SOderstrom, T. Andersson, .. ABSTRACT. H. Zirath, E. Kollberg, . Experimental results concerning both the DC characteristics and the performance of Quantum Well (QW) diodes as oscillators are given. Two diodes have been manufactured and used in the work where the main difference between them is the dop

PLANAR W-BAND RECEIVER AND OSCILLATOR J. Buechler, + E. Kasper, * J.F. Luy *, P. Russer +, K.M. Strohm * ABSTRACT A planar oscillator integrated on silicon substrate with a double drift region IMP ATT diode and a monolithic integrated Schottky diode receiver including a planar antenna on one silicon chip for the 90 GHz band are presented. The maximum CW output power of the oscillator is 200 m

QUARTZ MICROSTRIP OSCILLATORS RADIAL DISK FUNDAMENTAL AND SECOND HARMONIC MMW GUNN John Ondria* ABSTRACT Microstripline Gunn oscillators have been successfully constructed up through the W-Band (75 - 110 GHz) region employing soft substrate materials. Most designs employ low Q resonators which yield correspondingly poor stability and noise. A new design which exploits the inherently high Q o

A MEASUREMENT METHOD FOR SYMMETRICAL COUPLED LINES B. Cherek*, ABSTRACT T.J. Brazil** A simple and accurate measurement method for obtaining the even- and odd-mode impedances is presented. The results given by this method are compared with the experimental results given by other authors. The deviation between the results of the method presented in this paper and results often taken as "standar

SCALAR MM- W AVB NETWORK ANALYSIS WITH HIGH DYNAMIC RANGE T. Geistl), G. Hochschild2), W. Wiesbeckl) ABSTRACT A scalar network analysis system suitable for the frequency range 110 170 GHz is presented. It offers a dynamic range up to 60 dB, thus having the capability to characterize the frequency response of millimeter wave networks with high insertion loss. The system consists of components,

A HOMODYNE W-BAND NETWORKANALYZER WITH INTEGRATED QUADRATURE DETECTOR B. Neumeyer* 1. Abstract The paper presents a homodyne Networkanalyzer working in the frequency range from 90 - 100 GHz. The key-element of the Networkanalyzer is an integrated Quadrature Detector as simple and small measurement signal receiver. The Quadrature Detector is designed in Fin-line technique and allows a measuremen

AN AUTOMATIC SYSTEM COUPLING LARGE SIGNAL MEASUREMENT SET UP AND AN OPTIMIZATION SOFTWARE FOR POWER AMPLIFIER DESIGN J.M. NEBUS* - J.P. VILLOTTE* - J.F. VIDALOU* M. AUBOURG* - L. HAGERMAN* - H. JALLAGEAS* ABSTRACT An automatic active source and load pull system has been designed. The behaviour of devices under large signal conditions is given by a data file. Associated optimization software gives