Realisation of controllable transmission zeros by perturbation technique for designing dual‐mode filter using substrate integrated hexagonal cavity

Chongder, Prasun; Srivastava, Kumar Vaibhav; Biswas, Animesh

doi:10.1049/iet-map.2013.0341

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…3 b . Hence,

M_{11}

is smaller than

M_{22}

and the transmission zero due to interaction of orthogonal modes occurs on the lower side of the passband [13 ]. Further, the C‐shaped feed lines capacitively coupled to the SICL ring resonator facilitates source to load coupling to create a transmission zero on upper side of the passband as shown in Fig.…”

Section: Configuration Of Dual‐mode Sicl Bandpass Filter and Analysismentioning

confidence: 99%

Dual-mode SICL bandpass filter with via based perturbation technique for K u -band

Krishna¹,

Mukherjee²

2020

Electronics Letters

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This Letter presents a dual‐mode substrate integrated coaxial line (SICL) based bandpass filter for Ku ‐band application. The proposed bandpass filter is realised by exciting the even and odd modes in an SICL ring resonator. A novel perturbation technique to control the coupling between orthogonal modes is realised by varying the width of the outer conductor formed by metallic vias in this planar coaxial line. Further, the effect of perturbation length and inset on resonant frequency and attenuation pole is studied. The two transmission zeros produced close to the pass band provide excellent selectivity and reject spurious frequencies up to 1.9fo. The proposed SICL based filter is manufactured using low cost PCB fabrication process. Experimental results indicate an insertion loss of 1.18 dB and a 3 dB bandwidth of 360 MHz centred at 13.83 GHz. The self packaged SICL filter occupying only 0.31λg2 lateral area is suitable for implementation in densely integrated systems.

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“…3 b . Hence,

M_{11}

is smaller than

M_{22}

Section: Configuration Of Dual‐mode Sicl Bandpass Filter and Analysismentioning

confidence: 99%

Dual-mode SICL bandpass filter with via based perturbation technique for K u -band

Krishna¹,

Mukherjee²

2020

Electronics Letters

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“…1. In dual-mode resonator, both degenerate modes exist at same frequency but due to perturbation applied to the side-wall of hexagonal cavity, degenerate modes are split into even and odd modes [9,14]. The electric field distributions for even mode (9.59 GHz) and odd mode (9.41 GHz) are shown in Figs.…”

Section: Diplexer Design Principlementioning

confidence: 99%

“…Detailed studies on symmetric as well as asymmetric diplexer responses obtained by switching transmission zeros and adjusting number of poles in each Rx and Tx channels have been carried out. Perturbation using side-wall of hexagonal cavity and adjusting feeding position leads to design flexibility and improvement in filter selectivity [14]. In Diplexer Design I-III, both Rx and Tx channels have one dualmode SIHC and a single-mode SIHC acting as a common resonator.…”

Section: Introductionmentioning

confidence: 99%

Flexible design procedure for realisation of dual‐mode substrate integrated hexagonal‐cavity‐based diplexer

Chongder

Biswas

2017

IET Microwaves, Antennas & Propagation

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Novel symmetric and asymmetric diplexers are realised using dual‐mode substrate integrated hexagonal cavity (SIHC) with the help of perturbation. Four different diplexers are designed and fabricated. The first three designs consist of single dual‐mode SIHC in both Rx (lower frequency band) and Tx (higher frequency band) channels using same coupling topology and the last design consists of two dual‐mode SIHC in Rx and Tx channels. Change in perturbation and feeding position provides different passband responses in terms of switching transmission zeros on both sides of the channel's passband of the diplexer's channel without changing coupling topology. As a result, the proposed diplexers provide design flexibility. Perturbation also helps in improving channel's passband selectivity and isolation between Tx and Rx channels. The input port of this proposed diplexer is a single‐mode SIHC which helps in reducing diplexer size and provides greater degree of design freedom to realise symmetric and asymmetric diplexers.

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Semi-hexagonal Half Mode SIW Antennas and Arrays for Vehicular Communication Systems

Banerjee

Mazumdar

Chatterjee

et al. 2021

Advances in Smart Communication Technology and Information Processing

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Realisation of controllable transmission zeros by perturbation technique for designing dual‐mode filter using substrate integrated hexagonal cavity

Cited by 9 publications

References 21 publications

Dual-mode SICL bandpass filter with via based perturbation technique for K u -band

Dual-mode SICL bandpass filter with via based perturbation technique for K u -band

Flexible design procedure for realisation of dual‐mode substrate integrated hexagonal‐cavity‐based diplexer

Semi-hexagonal Half Mode SIW Antennas and Arrays for Vehicular Communication Systems

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