|
Analytical Study on Lowpass Filter with I-Shaped Defected Ground Structures for Medical ISM Band Applications
|
|
| Author:
|
MINAKSHMI SHAW, B T P MADHAV, PRADEEP KUMAR, MANAS RANJAN MANTRI, P RAKESH KUMAR
|
| Abstract:
|
A novel microstrip lowpass filter (LPF) with defected ground structure (DGS) for Medical ISM band and wireless
communication applications is presented in this paper. Microstrip lowpass filter are developed with reduced size and
significantly improved stop band bandwidth. The proposed filter has a wideband rejection from 2.41GHz to 20GHz with
18 dB suppression level. After introducing New Defective Ground Structure (DGS) frequency response characteristic of
microstrip lowpass filter is improved and harmonic rejection is also improved from 5th to 10th order along with low
insertion loss and voltage standing wave ratio together with good selectivity. The proposed microstrip lowpass filter is
designed by embedding it on FR4 substrate having relative permittivity 4.4 with excellent impedance matching of 50
ohms at the feed line.
|
| Keyword:
|
Microstrip lowpass filter; DGS; Ansoft HFSS;
|
| EOI:
|
http://eoi.citefactor.org/10.11209/ijpr.10.03
|
| DOI:
|
https://doi.org/10.31838/ijpr/2018.10.03.025
|
| Download:
|
Request For Article
|
|
|