Compact microstrip low pass filter design using U‐shaped folded high‐impedance line. Issue 7 (7th May 2018)

• Record Type: Journal Article
• Authors: Rajput, Anil; Patel, Kamlesh; Birwal, Amit
• Is Part Of: Microwave and optical technology letters. Volume 60:Issue 7(2018:Jul.)
• Page Start: 1812
• Page End: 1815
• Publication Date: 2018-05-07
• Subjects: compact size -- cutoff frequency -- folded line -- low pass filter -- microstrip filter; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.31245
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: A microstrip low pass filter using a U‐shaped folded high impedance line is designed. Comparison with conventional filter has shown almost ripple free pass band and better stop band characteristics in the filter with folded line. Effective optimization of filter dimensions led to smoother and spurious free responses, which are desirable in the radio frequency and microwave systems. Size of overall filter is reduced by 7.5% and 9.02% for third order and fifth order filters, respectively. Both simulated and measured responses of fifth order filter are presented and found in agreement.