Title :
A 250-GHz microshield bandpass filter
Author :
Weller, T.M. ; Katehi, L.P. ; Rebeiz, Gabriel M.
Author_Institution :
Radiation Lab., Michigan Univ., Ann Arbor, MI, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
A four-section, planar bandpass filter has been designed, fabricated and tested at 130-360 GHz. The filter is based on the microshield line, a half-shielded transmission line in which the conducting lines are supported on a 1.4-μm-thick dielectric membrane. The insertion loss of the filter is less than 1.5 dB with a 58% relative bandwidth at 250 GHz, demonstrating the excellent performance of the microshield geometry. Also, a Monte Carlo routine was developed in conjunction with a semi-empirical/semi-analytical model to allow the S-parameters of the filter to be derived from scalar power measurements.
Keywords :
Monte Carlo methods; S-parameters; band-pass filters; millimetre wave filters; passive filters; radiofrequency filters; 1.5 dB; 130 to 360 GHz; 250 GHz; EHF; MM-wave filters; Monte Carlo routine; S-parameters; THF; dielectric membrane; four-section planar bandpass filter; half-shielded transmission line; insertion loss; microshield bandpass filter; microshield line; model; scalar power measurements; Band pass filters; Bandwidth; Biomembranes; Dielectrics; Geometry; Insertion loss; Performance loss; Planar transmission lines; Power transmission lines; Testing;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
