Design of Compact Bandpass Filters Using Sixteenth Mode and Thirty-Second Mode Siw Cavities

Yang, Ya-Na; Li, Guo Hui; Sun, Li; Yang, Wei; Yang, and Xuexia

doi:10.2528/pierl18021002

Cited by 9 publications

(7 citation statements)

References 7 publications

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“…The resonant frequency of the empty circular cavities (without perturbation) can be determined by Eq. (1) as suggested in [5]…”

Section: Analysis and Design Of Compact Sicc Dual-band And Uwb Filtersmentioning

confidence: 85%

Compact Sicc Dual-Band and Uwb Filters Using Multimode Technology

Chen¹,

Li²,

Shi³

et al. 2020

PIER Letters

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In this paper, a dual-band bandpass filter using sixteenth-mode substrate integrated circular cavity (SM-SICC) and a novel ultra-wideband (UWB) bandpass filter (BPF) using eighthmode SICC (EM-SICC) cavity are presented. The TM101, TM102, and TM201 resonant modes of the substrate integrated waveguide (SIW) circular cavity are used to design the dual-band filter, where the resonant frequencies can be shifted to the desired frequency through adjusting the position and size of complementary split-ring resonator (CSRR). In addition, the TM101, TM102, TM103, and TM104 resonant modes are employed to realize the UWB filter. A transmission zero appears by introducing the CSRR in the middle of the SICC, so the dual-band BPF and UWB BPF with high selectivity are realized. The proposed filters possess compact size, because of the EM-SICC and SM-SICC. The dualband filter operating at 7.79 and 12.83 GHz is fabricated in SM-SICC with 3-dB fractional bandwidths (FBWs) of 7.8% and 31.25%, respectively. The UWB filter with FBW of 97% is simulated in EM-SICC. Compact circuit sizes and excellent measured performances have been achieved for the two filters.

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“…The resonant frequency of the empty circular cavities (without perturbation) can be determined by Eq. (1) as suggested in [5]…”

Section: Analysis and Design Of Compact Sicc Dual-band And Uwb Filtersmentioning

confidence: 85%

Compact Sicc Dual-Band and Uwb Filters Using Multimode Technology

Chen¹,

Li²,

Shi³

et al. 2020

PIER Letters

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“…The authors of [75] reported SMSIW and TMSIW bandpass filters. Miniaturization of 93.75 % and 96.87 % is achieved by adopting the SMSIW and TMSIW cavity resonator in-…”

Section: Thirty-second-mode Siw (Tmsiw)mentioning

confidence: 99%

Miniaturization Trends in Substrate Integrated Waveguide (SIW) Filters: A Review

et al. 2020

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This review provides an overview of the technological advancements and miniaturization trends in Substrate Integrated Waveguide (SIW) filters. SIW is an emerging planar waveguide structure for the transmission of electromagnetic (EM) waves. SIW structure consists of two parallel copper plates which are connected by a series of vias or continuous perfect electric conductor (PEC) channels. SIW is a suitable choice for designing and developing the microwave and millimetre-wave (mm-Wave) radio frequency (RF) components: because it has compact dimensions, low insertion loss, high-quality factor (QF), and can easily integrate with planar RF components. SIW technology enjoys the advantages of the classical bulky waveguides in a planar structure; thus is a promising choice for microwave and mm-Wave RF components. INDEX TERMSCoupling topology, filters, isolation, metallic via, substrate integrated waveguide (SIW), transmission zero (TZ).

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“…A metallic via is implemented on one of the cavities of the upper-band filter, which is used to suppress the influence of upper-band filter on the passband of lower-band channel to improve the isolation of the two channel filters. In our previous work [6], a novel BPF using TMSIW cavity is proposed. Based on the EMSIW cavity filter and the TMSIW cavity filter, Fig.…”

Section: Diplexer Structurementioning

confidence: 99%

“…Wei Hong et al proposed a new guided wave structure: half mode SIW (HMSIW) in 2006 [3]. After that, several structures have been developed by cutting the SIW resonators on fictitious magnetic walls to achieve quarter mode SIW (QMSIW), eighth mode SIW (EMSIW), sixteenth mode SIW (SMSIW) or even thirty-second mode SIW (TMSIW) [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Design of Miniaturized Siw Diplexers With Low Insertion Loss and High Isolation

Yang¹,

Li²,

Sun³

et al. 2018

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This paper presents two novel substrate integrated waveguide (SIW) diplexers with transmission zeros placed below and above the passband. Diplexer I is based on two bandpass filters (BPFs) using eighth mode SIW (EMSIW) cavities with Rx and Tx frequencies at 3.68 GHz and 6.09 GHz. The second one is operated at 2.37 GHz and 6.04 GHz using EMSIW and thirty-second SIW (TMSIW) cavity. The diplexers are all combined through a T-junction by carefully choosing the length and width of two branches to allow each filter to match the antenna, while maintaining an open circuit at the middle band of the other. The proposed diplexers possess compact size, because of the EMSIW and TMSIW cavity. The diplexers are fabricated in SIW technology. The minimum insertion losses including SMA connectors are measured to be 1.39/1.61 dB and 0.38/0.85 dB. Meanwhile, the diplexers exhibit 37 dB and 42 dB isolations between the channels, respectively. Good agreement is achieved between simulated and measured results.

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Design of Compact Bandpass Filters Using Sixteenth Mode and Thirty-Second Mode Siw Cavities

Cited by 9 publications

References 7 publications

Compact Sicc Dual-Band and Uwb Filters Using Multimode Technology

Compact Sicc Dual-Band and Uwb Filters Using Multimode Technology

Miniaturization Trends in Substrate Integrated Waveguide (SIW) Filters: A Review

Design of Miniaturized Siw Diplexers With Low Insertion Loss and High Isolation

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