Novel Multi-mode Wideband Filters based on Cone Half-mode Substrate Integrated Waveguide

Ammari, Halima; Riabi, Mohamed Lahdi; Grine, Farouk; Thabet, R.

doi:10.1109/nemo.2018.8503461

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…As can be seen from Table 1, the proposed BPFs achieve miniaturization and better bandwidth performance from the comparison of size and 3 dB FBW. The proposed dual-band filter achieves a larger bandwidth than those in [6,9,10], while keeping merits of low-insertion loss and compact circuit size. At the same time, the center frequency of passband can be adjusted by changing the position of CSSR, and one transmission zero is generated in the stopband.…”

Section: Fabrication and Measurementmentioning

confidence: 99%

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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Section: Fabrication and Measurementmentioning

confidence: 99%