Title :
Parallel and end coupled microstrip band pass filters at W-band
Author :
Lindo, A.O. ; Mathews, Anju P. ; Gopikrishna, M. ; Osman, Nurul ; Leigh, Robert ; Free, Charles ; Chandroth, Aanandan
Author_Institution :
Centre for Res. in Electromagn. & antennas, Cochin Univ. of Sci. & Technol., Cochin, India
Abstract :
In this paper we discuss two types of band pass filters at millimeter wave frequency for different permittivity conditions in thick-film dielectric. Both edge coupled and end coupled band pass filters are designed at 90GHz for 8 and 9 permittivity values. The filters have a fractional band width of 0.1 and having an insertion loss below 3dB and rejection more than 18dB. The thick-film dielectric loss is comparatively less for such high frequency range for our designs. The cost and the fabrication complexity are much less since it uses the thick-film process.
Keywords :
band-pass filters; microstrip filters; end coupled microstrip band pass filters; frequency 90 GHz; parallel microstrip band pass filters; thick-film dielectric; Band pass filters; Coupling circuits; Fabrication; Frequency; Microstrip filters; Microstrip resonators; Microwave filters; Millimeter wave technology; Permittivity; Resonator filters; Band pass filter; Micro strip filter; Millimeter wave filters; Thick film circuits; coupled lines;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385376
