Dual-band SIW filter using slot perturbation
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Shraddha Sood
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Vandana Niranjan
Abstract
This work presents performance analysis of dual-band bandpass filter using substrate integrated waveguide technology. It includes two prototypes; featuring a dual-cavity working as dual-mode resonator and slot perturbation for creation of passbands. Design 1 and design 2 work on center frequencies of 7.35 GHz, 11.4 GHz and 7.3 GHz, 11.36 GHz respectively. The filter exhibits excellent performance in terms of measured in-band return loss of greater than 16 dB for both passbands and insertion loss of 0.96 dB and 1.63 dB for design 1. Design 2 has measured return loss of greater than 17 dB for both passbands and insertion loss of 0.98 dB and 1.92 dB, ensuring minimum losses. Additionally, simulation is performed using HFSS software for analysis of insertion loss, return loss, unloaded quality factor and group delay characteristics. The single layer filter is fabricated over RT Duroid 5,880 with εr value of 2.2 as substrate. Parametric analysis is performed to explore the optimum values of physical dimensions to ensure impressive Q factor and coupling in the design. The proposed design utilizes a multimode resonator and is miniaturized to provide a robust solution in specific microwave circuit designs and enables independent tuning of passbands to increase design flexibility.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: S.S. has developed the design concept, formulated and performed simulation using HFSS tool and measurements are verified for design feasibility. Both S·S., V.N. and V.S. contributed to the final version of the manuscript. V.N. and V.S. supervised the work done.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
References
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Artikel in diesem Heft
- Frontmatter
- Research Articles
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- Design and implementation of on-body PEC backed 2 × 2 MIMO antenna
- Horn integrated 3-D printed four-port MIMO DRA for CubeSats
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- A novel high isolation quad-port multiband MIMO antenna for V2X applications at Sub-6 GHz band
- Axial ratio control of circularly polarized microstrip antenna using miniaturized multilayer graphene resistive pads
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Artikel in diesem Heft
- Frontmatter
- Research Articles
- Microwave-based breast cancer detection using a high-gain Vivaldi antenna and metasurface neural network approach for medical diagnostics
- Design and implementation of on-body PEC backed 2 × 2 MIMO antenna
- Horn integrated 3-D printed four-port MIMO DRA for CubeSats
- On the performance investigation of a low profile UWB antenna backed with conjointly connected sickle shaped AMC structure for on-/off body communications
- Frequency and pattern reconfigurable patch antenna for multi-standard wireless applications
- A novel high isolation quad-port multiband MIMO antenna for V2X applications at Sub-6 GHz band
- Axial ratio control of circularly polarized microstrip antenna using miniaturized multilayer graphene resistive pads
- Subspace estimation of coherent wideband OFDM signals
- Dual-band SIW filter using slot perturbation
- Cuckoo search-ExtraTrees model for Radio-frequency power amplifier under different temperatures
