Development of Reconfigurable Band Stop Filter Using Metamaterial for WLAN Application

Chavda, Khyati; Sarvaiya, A. K.

doi:10.1109/piers55526.2022.9793054

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…The reconfigurable filter design uses two-stepped impedance resonators (SIRs) and one uniform impedance resonator (UIR) [6] in which size is more compared to the proposed work. Chavda and Sarvaiya [11] shows the reconfigurable band stop filter for a single band using a novel shape hexagonal metamaterial cell but the size of the proposed filter much more compared to the proposed work. This proposed paper presents a reconfigurable novel bandpass filter design using a microstrip coupled resonator with a PIN diode.…”

Section: Introductionmentioning

confidence: 81%

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Design and development frequency reconfigurable microwave filter for wireless application

Chavda

Sarvaiya²

2023

IJRES

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This paper presents a novel reconfigurable bandpass filter with three reconfigurable states used for C band wireless applications. The frequency reconfigurable is achieved using the combination of a different microstrip coupled resonator structure and switching device as PIN diodes. The open-loop filter structure provides three narrow band states at 5.1, 5.2, and 5.8 GHz. The frequency reconfiguration is obtained without compromising performances. The compact size of the proposed designed along with the targeted frequency bands at lower wireless local area network (WLAN) (5.1, 5.2 GHz), and worldwide interoperability for microwave access (WiMAX) (5.8 GHz) applications. The prototype is constructed on an RT duroid 5880 substrate and tested for validation in vector network analyzer (VNA). The designed filter provides excellent selectivity and good rejection at desired resonant frequencies.

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Section: Introductionmentioning

confidence: 81%

“…❒ 497 [25], [26]. Liu et al [4] shows a novel tunable liquid crystal (LC) based bandpass filter with tunable bandwidth using a varactor diode.…”

Section: Introductionmentioning

confidence: 99%

Design and development frequency reconfigurable microwave filter for wireless application

Chavda

Sarvaiya²

2023

IJRES

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“…Its operating principle lies in the fact that, with an appropriate choice of length, the open-ended stub acts as a short at the cut-off frequency [1]. A tunable BSF provides many advantages like tunability, compactness, selectivity, cost-effectiveness, and spectrum management in RF and microwave circuits [2], [3]. Stop-band tunability over small ranges includes varactor [4], substrate integrated waveguide (SIW) resonator coupled microstrip line [5], and half mode SIW for flexibly controlled cut-off [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Capacitive Tuning of High Selective T-Shaped Band-Stop Filter: Theory and Experiment

Sahu,

Panda,

Parida

2024

J. Microw. Optoelectron. Electromagn. Appl.

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This paper develops an easy design analysis for a simple high selective T-shaped band-stop filter (BSF) loaded with a capacitance. It applies the developed design theory to obtain an appropriate capacitance value for tuning the cut-off frequency. This paper clearly explains the design mechanism for such a simple tunable BSF using ABCD matrices. Simulated filters loaded with capacitances (up to 1.1 pF) show a change in rejection frequencies from 2 GHz (un-tuned) down to 1.047 GHz with 50dB rejection and around 36% -3dB fractional bandwidth. It also shows the effect on pass frequencies which change from 1 GHz down to 111 MHz, while the separation between pass and stop frequency remains around 1 GHz. Measurements on fabricated prototypes match the simulation and theory for tunable frequencies closely. It also compares the performance of the filter with previously reported similar structures.

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Development of Reconfigurable Band Stop Filter Using Metamaterial for WLAN Application

Cited by 2 publications

References 27 publications

Design and development frequency reconfigurable microwave filter for wireless application

Design and development frequency reconfigurable microwave filter for wireless application

Capacitive Tuning of High Selective T-Shaped Band-Stop Filter: Theory and Experiment

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