?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS49414.2021.9642643&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=C.L.&rft.au=Ng%2C+C.L.&rft.aulast=Ng&rft.date=2021&rft.title=Design+of+Chained-Function+Dual-band+Waveguide+Filter+Based+on+Dual-mode+Resonators&rft.isbn=9781728176666&rft.genre=proceeding