CYLINDRICAL PARALLEL-PLATE M. Uhlmann PHASED ARRAY WITH PIN-DIODE CONTROLLED FEEDING SYSTEM. Abstract: A comparison of feeding systems for Cylindrical Phased Arrays presently known shows that most of them have the serious disadvantages of complexity and relatively high losses. This is due to the requirement of controlling not only the phase, but also the amplitude distribution over the arr

A New Numerical Approach to Planar Phased Arrays. L.P. Ligthart. ABSTRACT In examining the directivity characteristics of planar phased arrays, an expression in the form of a double summation approximation to the double integration of the array pattern is conventionally used. This procedure is computing time-intensive. In this paper an exact closed-form expression for the directivity functi



SIDELOBE-REDUCTION TECHNIQUE FOR ARRAYS WITH BLOCK PHASE EXCITATION David K. Cheng * and Naohisa Goto t ABSTRACT Block phase excitation in a large phased array reduces circuit complexity and system cost but results in high side lobes in certain directions. This paper introduces a technique for determining the locations and levels of the prominent sidelobes when each phase shifter is used t

MICROSTRIP COMB LINE FILTERS Roland Briechle + ABSTRACT The known design procedures for comb line filters are applicable only to filters using TEM-mode transmission line systems. Synthesis procedures for comb line filters using coupled microstrip transmission lines must take into account the unequality of the phase velocities of the fundamental modes on such a system. Such a method is presen

A NUMERICAL METHOD FOR THE DESIGN OF n-MICROSTRIP FILTERS R. De Leo - M. De Sario ABSTRACT A numerical arbitrary parallel the the design The function. strip lines method and more are taken evaluation the is reported structures generally into for the design like the hairpin, losses hybrid of filters composed of n-microstrip accuracy meander, and the half-wave coupled in with structures. I

STRIPLINE FILTERS WITH LUMPED CAPACITANCES G. Reiter ABSTRACT In the lecture, the arrangement and design procedure of stripline filter is out lined. The filter having lumped capacitive -sections as coupling elements and other parallel lumped capacitances connected to each other by very short transmission line sections.This construction can be applied for a filter with narrow relative bandwidth

THE DESIGN OF HIGH POWER 12 GHZ MICROWAVE SATELLITE S. Singer COMPONENTS SYSTEMS & G. Woods FOR USE IN BROADCAST V. O'Donovan, COMMUNICATIONS S. Kallianteris, ABSTRACT A number of broadcast satellites operating in the 12 GHz band are scheduled for launch in the next decade. This paper presents a status report on a long term program aimed at advancing the technology of microwave components

ELLIPTIC CHANNEL W. Hagele FUNCTION BRANCHING FILTERS NETWORKS FOR 11 GHZ The design of an 11 GHz channel branching filter which has to meet high stopband attenuation requirements demonstrates that elliptic-function filters are superior to conventional filter types as regards insertion loss and size. The conctruction of a 6-section filter with couplings between non-adjacent resonators is pres

SIMPLE ELLIPTIC-FUNCTION AND SOU-RIGID O. Kasuga, CABLES FILTERS MADE OF RECTANGULAR WAVEGUIDE T. Kyuzaki and R. Tamura ABffi'RACT A semi-rigid cable makes a conventional waveguide filter into an ellipticfunction filter. A four-resonator elliptic-function filter having a simple construction and a selectivity equivalent to that of a tenresonator Butterworth filter has been developed by addin