Design of dual wideband bandpass filter using stub loaded multi-mode resonators
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
John Wiley and Sons Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this paper, a novel dual wideband microstrip bandpass filter is proposed. The designed filter is constructed by two different stub loaded resonators located at the upper and bottom sides of the coupling line. The coupling transmission line is also connected to input and output (IO) ports. The upper resonator creates a wide passband, whereas the bottom resonator is used to create two transmission zeros in the passband. Thus, a wide passband can be divided into dual wide passbands. The bottom resonator is also utilized to improve the insertion and return losses in the passband. The designed filter is fabricated and tested in a very good agreement with the simulated results. The measured fractional bandwidths (FBWs) of the passbands are 44.6% and 24.2% at the center frequencies of 3.4 GHz and 5.51 GHz, respectively. The measured insertion losses in the passbands are 0.51 dB and 1.13 dB. © 2018 Wiley Periodicals, Inc.
Açıklama
Anahtar Kelimeler
bandpass filter, dual-band, microstrip, wideband
Kaynak
Microwave and Optical Technology Letters
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
60
Sayı
10
