Bandwidth reconfigurable bandstop filter using planar EBG structure

Kurra, Lalithendra; Abegaonkar, Mahesh P.; Basu, Ananjan; Koul, Shiban K.

doi:10.1109/imarc.2013.6777732

Cited by 13 publications

(7 citation statements)

References 9 publications

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“…It can be seen that the proposed structure has many advantages as far as reconfigurable features such as stopband switching, dual-band operation with tunable stop bandwidths and resonant frequencies are concerned. In addition to these multiple adaptive features, the circuit also offers excellent rejection in the stopband, i.e., up to 55 dB, which is at least 20 dB deeper than other reported circuit topologies [3], [6], [9], [10], [12]- [15], [35], [39], [40]. Moreover, the proposed structure offers wider tuning ranges in resonant frequency and stop bandwidth for both bands, as compared to [9], [12], [13], [15], [35].…”

Section: Fabrication and Measurementsmentioning

confidence: 84%

“…In addition to these multiple adaptive features, the circuit also offers excellent rejection in the stopband, i.e., up to 55 dB, which is at least 20 dB deeper than other reported circuit topologies [3], [6], [9], [10], [12]- [15], [35], [39], [40]. Moreover, the proposed structure offers wider tuning ranges in resonant frequency and stop bandwidth for both bands, as compared to [9], [12], [13], [15], [35]. These features make the proposed structure a better choice for the reconfigurable filter design.…”

Section: Fabrication and Measurementsmentioning

confidence: 84%

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A Compact Reconfigurable 1-D Periodic Structure in GaAs MMIC With Stopband Switching, Dual-Band Operation and Tuning Capabilities

Shahid¹,

Thalakotuna

Karmokar

et al. 2021

IEEE Access

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This paper presents a systematic study of a compact and reconfigurable periodic structure in GaAs MMIC technology. Compactness is achieved by the introduction of spiral inductors in a conventional unit cell without disturbing the reactive loading mechanism. The proposed architecture exhibits a 28.3% wider stopband with 62.6% smaller footprint compared to a conventional structure. The compactness and bandwidth improvement in the proposed structure is explained with the help of dispersion and circuit analysis. The reconfigurability built into the design using PIN diodes allows stopband switching, dual-band operation and tuning capabilities with the mere use of a single reactive load in its unit cell. To the best of the authors knowledge, it is the first time a reconfigurable MMIC implementation is realized using the proposed structure or even the conventional design. As a guide to design, sensitivity analysis to filter performance is presented for important structure parameters. Switching element parasitics are discussed in two ways: firstly, with the design and measurement of structures with idealized switching conditions and in second, with the circuit and full-wave EM modelling of the finite periodic structure with the actual PIN diodes. The on-chip measurements of the fully reconfigurable filter show excellent agreement with simulations.

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Section: Fabrication and Measurementsmentioning

confidence: 84%

Section: Fabrication and Measurementsmentioning

confidence: 84%

A Compact Reconfigurable 1-D Periodic Structure in GaAs MMIC With Stopband Switching, Dual-Band Operation and Tuning Capabilities

Shahid¹,

Thalakotuna

Karmokar

et al. 2021

IEEE Access

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“…In the last years, there has been growing demand for electronically tunable microwave filters because of their capabilities in improving wireless systems performances . Emerging wireless technologies such as tablets, smartphones or wireless sensor networks (WSNs), requires smaller, faster and more advanced data transmission systems for the data which require high bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…In the last years, there has been growing demand for electronically tunable microwave filters because of their capabilities in improving wireless systems performances. [1][2][3][4][5] Emerging wireless technologies such as tablets, smartphones or wireless sensor networks (WSNs), 6,7 requires smaller, faster and more advanced data transmission systems for the data which require high bandwidth. This led transmitters, receivers front-end, and all radio frequency circuits to be in close proximity to each other inside devices characterized with strong mechanical constraints and very small cases.…”

Section: Introductionmentioning

confidence: 99%

Compact microstrip reconfigurable filter based on spiral resonators

Donelli

Manekiya

Menon

2018

Micro & Optical Tech Letters

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In this work, the design of a reconfigurable stop‐band filter based on a set of spiral microstrip resonators is proposed. In particular, a set of spiral resonators able to reject different Wi‐Fi channels are activated or deactivated by means of electronic switches based on pin diodes. A filter prototype composed of five resonating elements and coupled with a microstrip was fabricated and experimentally assessed. Good performances have been verified experimentally, with reference to the filter reject capabilities. The numerical and experimental results are in good agreement.

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“…For planar microstrip filters, working frequency range of 4.14-6.26 GHz [1] and 1.178-3.60 GHz [2] have been demonstrated by filters with footprints of about 17 Â 20 mm 2 and 13 Â 18 mm 2 respectively. However, due to the utilization of quarter wavelength resonators, planar microstrip filter is unable to cover large frequency range.…”

Section: Introductionmentioning

confidence: 99%

A compact and customizable operation frequency filter for broadband applications

Guo

Liu

et al. 2015

IEICE Electron. Express

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A novel compact customizable EBG (Electromagnetic Bandgap) filter operating from 2.6 to 10.0 GHz is proposed. The EBG filter is manufactured by a 2-layer PCB (Printed Circuit Board) process in RO4350 substrate with surface mounted lumped capacitors. A specific working frequency of the filter is selected on demand by adjusting the value of the capacitors, while the filter's performance is not compromised. The experimental results show a filter with size of 2.50 × 3.00 × 1.00 mm 3 in PCB achieving performance of insertion loss of 3.34 dB, 1.19 dB and 1.20 dB at 2.60 GHz, 7.71 GHz and 10.0 GHz with the capacitor of 5.1 pF, 0.5 pF and 0.3 pF respectively.

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Bandwidth reconfigurable bandstop filter using planar EBG structure

Cited by 13 publications

References 9 publications

A Compact Reconfigurable 1-D Periodic Structure in GaAs MMIC With Stopband Switching, Dual-Band Operation and Tuning Capabilities

A Compact Reconfigurable 1-D Periodic Structure in GaAs MMIC With Stopband Switching, Dual-Band Operation and Tuning Capabilities

Compact microstrip reconfigurable filter based on spiral resonators

A compact and customizable operation frequency filter for broadband applications

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