?url_ver=Z39.88-2004&rft_id=10.1109%2FRFM.2013.6757245&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=M.T.&rft.au=Khan%2C+M.T.&rft.aulast=Khan&rft.title=Parametric+effect+of+defected+ground+structure+(DGS)+on+frequency+of+a+bandpass+filter&rft.date=2013&rft.genre=proceeding