A New Field-Matching 2N -Port Branch-Guide Technique Couplers for the Efficient CAD of F. Alessandri M. Mongiardo2.R. Sorrentino' " ABSTRACT Computational schemes based on the field-matching technique have been developed for the efficient and accurate CAD of multiport power dividers/combiners in the form of 2N-port branch guide couplers. A new approach. called cellular technique. is introduced

COPLAN: CAD PROGRAM FOR CALCULATING CONSIDERATION OF FREQUENCY DEPENDENCY NUMEROUS COPLANAR LINE TYPES WITH Bernd Eufinger*, ABSTRACT Heinz-Peter Feldle** Exact simulation and optimization of coplanar circuits at microwave and millimeter frequencies is impossible with present commercial circuit analysis programs. The implemented models are generally based on static fieldtheoretical methods

QUICK HYBRID MODE ANALYSIS OF MICROSTRIP LINE WITH EDGE LINE CONCEPT AND ITS APPLICATION TO DISCONTINUITIES B.R.MOON*, Abstract C.CA VALLI*, D.BAJON**, and H.BAUDRAND* From the examination of the fringing fields at the edge of planar lines, we introduce the edge line concept as an alternative boundary condition in the dispersive bidimensional analysis of planar circuits. In this approach, the

PHYSICS- BASED DESIGN AND YIELD OPTIMIZATION OF MMICs J.W. BandlerH, Q. Cai., R.M. Biernacki.+, S.H. Chen.+ and Q.J. Zhang.. ABSTRACT This paper addresses physics-based design and yield optimization of MMICs. Multidimensional statistical models are considered for the physical, geometrical and process-related parameters of active and passive devices. An efficient gradient-based yield optimization

PSEUDOMORPHIC AIGaAs/GalnAs HETERO-FET FOR LOW NOISE AND POWER APPLICATIONS P. Narozny * , H. Dambkes * , J. Dickmann,* C. Wolk * ** ** D. Adam, E. Barbier, D. Pons** STRUCTURES ABSTRACT PM HFET based devices and circuits on GaAs substrates are developed for the low noise and for the power components of 20 GHz to 30 GHz communication links. Cut off frequencies in excess of 200 GHz, minimum noise

LOW-LOSS MESFET FREQUENCY QUADRUPLER FROM 5 TO 20 GHz Urs Lott * ABSTRACT The design of a direct quadrupler of a 5 GHz input signal to 20 GHz, using a single 0.3µm MESFET, is described. A minimum conversion loss of 6.5 dB has been measured, including about 2 dB of insertion loss of the MIC output filter. Due to the isolation provided by the PET, the input and output matching circuits can be design

CHARACTERIZATION OF W-BAND CW TUNNETT DIODE M. PBbl, J. Freyer . ABSTRACT GaAs TUNNETT diodes grown by MBE are investigated at W-band frequencies. The diode structure, output power, conversion efficiency and noise behaviour are presented. The maximum cw rf output power is 15 mW with 2% efficiency at 93 GHz. At a frequency of 25 kHz off carrier the FM N/C ratio is -78 dBc/Hz. A minimum noise me

A 23 GHZ DIELECTRIC RESONATOR STABILIZED MONOLITHIC MESFET OSCILLATOR U. GOttich ABSTRACT A monolithic GaAs 23 GHz dielectric resonator oscillator (CRO) was designed and fabricated. RF measurements concerning output power and noise properties were carried out. At maximum RF power of typical 16 mW a corresponding SSB noise measure of 38 dB was evaluated. The phase noise at 10 kHz off carrier was

A GaAs MONOLITHIC X BAND STABLEVCO S. BOLLAERT, J. VINDEVOGHEL, E. CONSTANT * ABSTRACf The field of applications of tunable microwave oscillators is now wowing up : local oscillators, Doppler radars, microwave sources for LAN... These applications require an important frequency stability. We describe hereafter such an oscillator which is made in GaAs monolithic technology, uses MESFETs and which c

AN EXTENDED FOUR-PORT NOISE MATCHING NETWORK S.Takeda* , A.Uchino* ABSTRACT An extended four-port noise matching network is proposed. The use of this four-port noise matching network allows further improvement in the minimal noise figure of linear noisy two-ports by conventional two-port matching networks.