A 38 GHz Low Phase Noise Monolithic VCO for FM MOD Using an AlGaAs/lnGaAs HBT with p+/p Regrown Base Contacts Koki Tanjit, Tomoya KanekoI, Yasushi Amamiya2, Takaki Niwa2, Hidenori Shimawake, Shinichi Tanaka2, Kenzo Wadal I Microwave & Satellite Communications Div., NEC Corp., 4035 Ikebe-cho, Tsuzuki-ku, Yokohama, Kanagawa 224-8555, JAPAN 2 Optoelectronics and High Frequency Device Research Labs.



ANALYSIS OF TAPERED IDG ANTENNAS IN FINITE GROUND PLANES A.B. Hannigan, S.R. Pennock, P.R. Shepherd Department of Electronic and Electrical Engineering University of Bath, Bath, BA2 7AY, United Kingdom eepabh-bath.ac.uk, eessrp-bath.ac.uk, eesprs-bath.ac.uk ABSTRACT This paper describes the development of a new theoretical method for the analysis of tapered Inset Dielectric Guide (IDG) ante

ACCURATE ANALYSIS AND MODELING OF SLOT COUPLED PATCH ANTENNAS BY THE TLM-IE AND THE FDTD METHODS F. Alimenti*, * F. Tiezzi*, R. Sorrentino*, S. LindenmeierO, L. PierantoniO, P. RusserO Istituto di Elettronica Universita di Perugia, via G. Duranti 93, 1-06125 Perugia, Italy e-mail: alimentiGistel.ing.unipg.it 0 Lehrstubl fiir Hochfrequenzteclmik, Teclmische Universitat Miinchen, Arcisstrasse

ACCURATE SHORT CHARACTERIZATION CIRCUIT OF BENT WAVEGUIDE IN WAVEGUIDE SLOT ARRAYS Giuseppe MAZZARELLA, Giorgio MONTISCI Dip. Ingegneria Elett11ca ed Elettronica, Univ. di Cagliari, Piazza d'Armi, 09123 Cagliari ITALY Phone: +39 010 615 5884, Fax: +39 010 615 5900, e-mail: mazzarella-diee.unica.it ABSTRACT In a waveguide slot array it is sometimes required to introduce bent short-circuit termi

NOVEL WIDE BANDWIDTH GAAS SAMPLING MMIC USING MICROSTRIP TRANSMISSION LINE (NLTL) AND NLTL SHOCK WAVE GENERATOR DESIGN D. Salameh and D. Linton BASED NONLINEAR The Queen's University of Belfast The Department of Electrical and Electronic Engineering Ashby Building, Stranmillis Road, Belfast, BT9 5AH, N Ireland, UK Tel :+44+(0)1232245133 Ext. 4089, Fax: +44+(0)1232667023 e-mail: d.linton-ee.qub.a

A Ka-Band High Power Monolithic HEMT vca Using a Sub-resonator Circuit with Phase Control Architecture Takuo KASHIWA, Takayuki KATOH, Takao ISHIDA, Hitoshi KURUSU, and Yasuo MITSUI High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation 4 -1 Mizuhara, Itami, Hyogo 664, Japan E-mail: kashiwa-oml.me1co.co.jp ABSTRACT This paper reports on a high output performance of a Ka-band

A 23 GHz BASEBAND HBT DISTRIBUTED AMPLIFIER FOR OPTICAL COMMUNICATION SYSTEMS A. Iqbal and I. Z. Darwazeh Department of Electrical Engineering and Electronics, UMIST P. Q. Box 88, Manchester, M60 lQD, U. K. Tel: +44 (0)161-200-4747 Fax: +44 (0)161-200-4770 E-mail: iqbala-fs4.ee.umist.ac.uk darwazeh-umist.ac.uk ABSTRACT This paper reports on a practical HBT distributed amplifier MMIC suitable for

ANew Design Concept For Realising Highly Tunable Microwave Filters Using Recursive Principles w. Mouzannar, L. Billonnet, B. Jarry and P. Guillon I.R.C.O.M., University of Limoges, UMR CNRS 6615, 123 Av. Albert Thomas 87060 Limoges Cedex, France 1 Abstract In this paper, new active monolithic microwave integrated bandpass filters employing recursive principles are developped. A 7 GHz fixed cent

A new spline based FET model for MESFETs and HEMTs R. Follmann, R.Tempel, T. Sporkmann and I. Wolff, Fellow, IEEE Institute of Mobile and Satellite Communication Techniques (IMST) CarI-Friedrich-Gauss-StraGe 2, D-47475 Kamp-Lintfort, FRG Abstract N this paper a new spline based nonlinear transistor model for MESFETs and HEMTs is described. A bias dependent small signal equivalent circuit has been