MODIFIED BROADSIDE-COUPLED MICROSTRIP LINES SUITABLE FOR MIC AND MMIC APPLICATIONS AND A NEW CLASS OF BROADSIDE-COUPLED BAND-PASS FILTERS
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Modified broadside-coupled microstrip lines, suitable for microwave and millimeter-wave integrated and monolithic integrated circuit (MIC and MMIC) applications requiring w de bandwidths and tight couplings, are presented. Their analysis, based on the quasi-static spectral domain technique, is described. Using these broadside structures, a new class of broadside-coupled band-pass filters has been developed at X-band (812 GHz) with about 1-dB insertion loss. Fair agreement between the measured and calculated results has been observed even though a major approximation is used. 1993 IEEE