TIME-DOMAIN METHOD OF LINES APPLIED TO FINNED WAVEGUIDE S. Nam, H. Ling and T. Itoh * ABSTRACT A new time-domain method (time-domain method of lines) for the analysis of planar guided wave propagation and scattering is developed for structures which contain metallic strips at the dielectric interface boundary. A simple numerical example is presented as a demonstration of the new method and its

MONOPULSE PRINTED ANTENNA ARRAY WITH A NEW FEEDING NETWORK STRUCTURE A. Nesic* ABSTRACT The paper describes a monopulse two-dimensional antenna array with anti resonant dipoles printed on a dielectric substrate. The monopulse comparator is integrated with the feeding network. The antenna array operates in C-band with a beam-width of 2.2 degrees in the H-plane and 15 degrees in the E-plane. The ob

MICROSTRIP W.J. Krzysztofik ANTENNA * AND PHASED ARRAY ABSTRACT , A systematic approach to analysis of notch-fed rectangular microstrip ra- diting element and its application to phased array is discussed. A modular design method of medium gain microstrip array is described. Design formulas and plots, sufficiently accurate to specify important design properties of the proposed antenna

A NEW CIRCULARLY POLARISED PLANAR ELECTROMAGNETICAL COUPLING AND ANTENNA FED BY ITS SUBARRAY M.Hanels h 1 , '* , Y.Hakura, * S.Salto* and T.Hasegawa * ' ABSTRACT A new type of circularly polarised planar antenna is presented and tested at the S-band. The antenna proposed here is fed electromagnetically by a center conductor of shielded triplate-line. This paper describes the basic desig

SYNTHESIS MICROSTRIP OF IN-LINE PATCH PARASITICALLY COUPLED RECfANGULAR -.- - ANTENNA SUB-ARRAYS M. R. Staker*, J. C. Mackichan* and J. S. Dahele**. ABSTRACT This paper explains a new and simple theory which can be utilised in the synthesis of in-line parasitically coupled rectangular microstrip antenna sub-arrays. This allows the element sizes and separations giving maximum sub-array di

EXACT GREEN FUNCTIONS FOR MICROSTRIP ANTENNA ANALYSIS Ismo v. Lindell, Keijo I. Nikoskinen, Arto T. Hujanen 1 Abstract. Exact image theory, recently introduced for the analysis of different electromagnetic problems involving planar boundaries between homogeneous media, is applied for the analysis of the microstrip geometry. It is shown that, instead of making direct use of image currents

SURFACE B. Roudot, W AVE FIELDS J.R. Mosig, AND EFFICIENCY OF MICROS TRIP ANTENNAS F.E. Gardiol- Abstract Description of the two fIrst surface wave modes ( TM0 , TEl ) and the computation of the associated fields. From the values of the fields, it is easy to calculate the Poynting vector and, hence, the associated powers. Once the powers associated with the space wave and the surface wave ar

MULTI-LAYER MICROSTRIP ARRAY ANTENNA A. G. Derneryd* ABSTRACT and T. Lorentzon* The bandwidth behaviour of a pair of stacked rectangular patches is investigated experimentally. The return loss is measured as functions of the size of the upper patch and the separation of the patches. The bandwidth of the optimized stacked antenna is twice as broad as the bandwidth of the single patch with equal

RECTANGULAR ELECTROMAGNETICAllY COUPLED MICROSTRIP ANTENNAS IN MULTilAYERED STRUCTURES G. Splitt 1) ABSTRACT Rectangular microstrip patch antennas which are electromagnetically coupled to a feedline are analyzed. Different thickness and different dielectric constants are considered. The analysis is also extended to electrically thick material. The results are derived with the help of the moment

MiMAC A NEW MULTILAYER --TECHNOLOGY Dr. S. W. Redfern * - THIN FILM -- MICROWAVE COMPONENT ABSTRACT A new integrated thin fllm process is described which permits the passive circuit elements at the substrate fabrication stage. Monolithic Alumina Circuits (MiMAC) offer cost and performance over conventional chip and wire hybrids. Details of this process are together with results for a MiMAC amp