PRODUCTION TECHNIQUES FOR M.I.C. 's A. Finney ABSTRACT Using microwave integrated circuits broadband radio equipment has been substantially reduced in size. Each M.I.C. is composed of sub-systems such as filters, circulators, iso-circulators and mixers defined on single substrate which is manufactured by simple methods using production techniques. These techniques produce alumina/ferrite sub



TRANSMISSION LINE TRANSDUCER FROM DOMINANT-MODE CIRCULAR WAVEGUIDE TO MICROSTRIP H. Hollmann ABSTRACT This investigation deals with a compact transducer from a polystyrene-filled, dominant-mode circular waveguide to an axially parallel 100 microstrip transmission line for use at X-Band frequencies. Three different circuit concepts are compared: One- and two-section quarterwave impedance transfor

16 x 16 FAST SWITCHING FOR MATRIX, IN THE 3.7 - 4.2 GHz BAND SATELLITE COMMUNICATIONS X. ROZEC ABSTRACT The fast switching matrix studied and realized as a prototype by THOMSONCSF DMH for INTELSAT and the CNET allows all possible interconnections between the 16 input ports and the 16 output ports. - It can be one of the essential elements of the future telecommunications satellites in the

TEMPERATURE-COMPENSATED MIC FILTER FOR ONBOARD SATELLITE REGENERATORS F. Assal, A. Berman, and C. Mahle* ABSTRACT This paper presents a temperature compensation technique for microwave integrated circuit (MIC) filters that may be employed in the implementation of onboard satellite DQPSK regenerators. These regenerators require extremely stable phase references for demodulation and bit-timing

STRIPLINE BANDPASS FILTER WITH VARIABLE PHYSICAL DIMENSIONS L.J.P. Linner* and J.P. Starski ABSTRACT A theory for the design of coupled-line bandpass filters has been derived. The filter comprises cascaded sections of two-port stepped coupled-line sections of length /4 and with individual wave impedance parameters each /a section. The design includes the possibility of altering pass ce

A NEW TYPE OF DIELECTRIC RESONATOR FILTER H.N. SHAMA SUNDARA, P~erre . GUI LLON and Yves GARAULT II! ABSTRACT This paper discusses a new type of dielectric resonator filter wherein nescent the cylindrical dielectric resonators have been enclosed in evacylindrical metallic cavities. The electromagnetic fields inside the metallic cavity have been derived assuming the dipolar TE01 dielectri

AN ODD ORDER ELLIPTIC FUNCTION NARROW-BANDPASS MICROWAVE FILTER A. E. Williams* ABSTRACT Multiple coupled high Q cavities can be used to generate even order elliptic function bandpass filter responses. This paper describes the design of odd order elliptic function bandpass filters using a minimum number of cavities connected by simple and resonant coupling elements. Experimental results of

COMMENSURATE GROUP Volker DELAY Tulaja' STRIPLINE BANDPASS FILTERS WITH EQUALIZED CHARACTERISTICS ABSTRACT A new structure for realization of commensurate TEM bandpass filters having equalized group delay in the passband has been developed and successfully tested. Two layers carrying the same short-shunt-stub structure are coupled over a dielectric interface. For the symmetrical case, the

THE DESIGN OF MULTIPOLE FILTERS FOR USE IN MILLIMETRE WAVE . IMAGE LINE INTEGRATED . CIRCVITS '--....- Mr. M. J. Aylward and Mr.N~_Williams ABSTRACT The design of a class of filters for use in millimetre wave integrated circuits is described. These filters use resonant rings of dielectric image line, the theory of which is briefly described. The synthesis of the circuit elements necessary to re