?url_ver=Z39.88-2004&rft_id=10.1109%2FRAEE.2015.7352760&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Khalid&rft.aufirst=S.&rft.au=Khalid%2C+S.&rft.date=2015&rft.isbn=9781467382397&rft.title=Design+of+highly+selective+ultra-wideband+(UWB)+bandpass+filter+using+step+impedance+resonator+and+parallel+coupled+lines&rft.genre=proceeding