Compact and High Selectivity Tri-Band Bandpass Filter Using Multipath-Embedded Resonators

Yang, Shuai; Wu, Bian; Zhu, Cheng; Wang, Yi; Chen, Liang

doi:10.2528/pierl14102108

Cited by 5 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, multi-band bandpass filters (BPFs) have attracted much interest. For example, various excellent works that focused mainly on multi-band and high selectivity have been reported [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In [1][2][3][4][5], stepimpedance resonators are widely employed to design dualband, tri-band, and quad-band BPFs.…”

Section: Introductionmentioning

confidence: 99%

“…Using this approach, singleband, dual-band, tri-band, quad-band, and quint-band BPFs can be easily achieved [6]. In [10,11], the concept of signal multipath transmission is used to design high-performance tri-band BPFs. Owing to the merits of their simple structure and controllable resonant frequencies, multiple-mode resonators (MMRs) are also widely used to design multi-band BPFs [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact tri‐wideband bandpass filter with multiple transmission zeros

Xiong¹,

Wang²,

Gong

et al. 2018

ETRI Journal

View full text Add to dashboard Cite

This paper presents a tri‐wideband bandpass filter (TWB‐BPF) with compact size, high band‐to‐band isolation, and multiple transmission zeros (TZs). The proposed TWB‐BPF is based on a multiple‐mode resonator (MMR), which is interpreted by the method of the even‐ and odd‐mode analysis technique. The MMR can excite 11 resonant modes, where the first two modes comprise the first passband, the next four modes form the second passband, and the last five modes are used to generate the third passband. In addition, 10 TZs are yielded to obtain high band‐to‐band isolation and wide stopband suppression characteristics up to 14.95fc1 (fc1 is the center frequency of the first passband). To verify the proposed filter, a TWB‐BPF with 3‐dB fractional bandwidths (FBWs) of 37.4%, 43.5%, and 40.4% is designed, fabricated, and measured.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact tri‐wideband bandpass filter with multiple transmission zeros

Xiong¹,

Wang²,

Gong

et al. 2018

ETRI Journal

View full text Add to dashboard Cite

show abstract

“…Moreover, a tri-band BPF based on two modified TSSIRs was present in [8]. In [9], a compact tri-band BPF using multipath-embedded resonators (MERs) was proposed, which consisted of two centrally connected the SIRs. In [10], two direct-coupled stepped impedance resonators (SIRs) with open stubs were proposed to design a compact tri-band BPF.…”

Section: Introductionmentioning

confidence: 99%

“…Three embedded bending stub resonators were employed to achieve tri-band filter with compact size [4]. Other typical methods were utilized to modified forms of stepped-impedance resonators (SIRs) in [5][6][7][8][9][10]. A multimode stepped-impedance resonator with a 0 • tapped-feed structure was proposed to design a miniaturized tri-band BPF in [5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact Tri-Band Bandpass Filter Based on Hybrid Resonator With Improved Selectivity Performances

Yang¹,

Chen²,

Wu³

et al. 2015

PIER C

Self Cite

View full text Add to dashboard Cite

Abstract-A novel microstrip tri-band bandpass filter is proposed and implemented using hybrid resonator with independently controllable center frequencies and good in-between isolation. This hybrid resonator is constructed by a stepped-impedance stub resonator and a single end shorted resonator. The stepped-impedance stub resonators are applied to achieve the first and second passband, while the third passband is implemented by single end shorted resonators. By applying the even-odd mode approach, the resonance frequency ratio between even mode and odd mode inside the stepped-impedance stub resonators is attained. Furthermore, the filter with multi-path coupling structure can generate the transmission zeros at the edge of the passband, which can effectively improve the filter passband selectivity. Finally, a tri-band filter operating at 1.91, 2.73, and 3.45 GHz is designed and fabricated. The measurement results accord well with the full-wave electromagnetic designed responses.

show abstract

Dual-/tri-band bandpass filters with fully independent and controllable passband based on multipath-embedded resonators

Xiong¹,

Zhang

Zhong³

et al. 2020

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

In this paper, dual-band and tri-band bandpass filters (BPFs) with fully independent and controllable passbands based on multipath-embedded resonators are presented. The dual-band BPF consists of two double open-ended stub-loaded terminal-shorted resonators (DOESL-TSRs) with a common via-hole connected along the symmetric plane of the filter. Based on DOESL-TSRs, a triple open-ended stub-loaded terminal-shorted resonator (TOESL-TSR) is proposed in the design of tri-band BPFs. The resonant characteristics of DOESL-TSR/TOESL-TSR are analyzed by the numerical calculation method. The measured results of the dual-band BPF show that the center frequencies (CFs) are located at 2.595 and 5.75 GHz, respectively, with 3 dB fraction bandwidth (FBWs) of 15 and 12.8%. The measured CFs of the tri-band BPF are located at 2.545, 3.775, and 5.95 GHz, respectively, with 3 dB FBWs of 9.8, 9.3, and 5.5%. Both of the filters exhibit the merits of fully independent and controllable passbands, high selectivity, and compact size.

show abstract

Compact and High Selectivity Tri-Band Bandpass Filter Using Multipath-Embedded Resonators

Cited by 5 publications

References 17 publications

Compact tri‐wideband bandpass filter with multiple transmission zeros

Compact tri‐wideband bandpass filter with multiple transmission zeros

Compact Tri-Band Bandpass Filter Based on Hybrid Resonator With Improved Selectivity Performances

Dual-/tri-band bandpass filters with fully independent and controllable passband based on multipath-embedded resonators

Contact Info

Product

Resources

About