2012
DOI: 10.1109/tmag.2012.2202099
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A Novel Active Frequency Selective Surface With Wideband Tuning Range for EMC Purpose

Abstract: A novel symmetric anchor-shaped active frequency selective surface (AFSS) with a wide tuning frequency range is proposed. Varactor diodes are used as the active tuning components at the center of each AFSS unit. The equivalent circuit model of the AFSS unit is extracted. SPICE-based circuit simulation and full-wave simulation are compared to predict the resonant frequency. A wide tunable frequency range from 1.76 to 2.45 GHz with a relative bandwidth of 33% is achieved. A prototype of AFSS is fabricated and te… Show more

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Cited by 48 publications
(20 citation statements)
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“…But still, the measured results are in good agreement with the simulation in general. The rate of polarization rotation rate is up to 90% form 16 …”
Section: Resultsmentioning
confidence: 99%
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“…But still, the measured results are in good agreement with the simulation in general. The rate of polarization rotation rate is up to 90% form 16 …”
Section: Resultsmentioning
confidence: 99%
“…It is difficult to design and fabricate EM metamaterials due to complex structures and non-periodic unites. On the other hand, FSSs are widely used in radomes, antenna reflectors, EM absorbers, electromagnetic band-gap (EBG) materials, and electromagnetic shields in the microwave and millimeter wave fields [15][16][17][18].…”
Section: Introductionmentioning
confidence: 99%
“…One simulated result indicates that a 77.2% wide tuning range (from 2.73 to 6.16 GHz) can be achieved by altering the capacitance of the varactors from 1.0 to 0.1 pF, and the minimum of the reflection coefficients can be kept less than À24 dB at all times. Compared to the previous designs reported Bayatpur and Sarabandi (2010), Ebrahimi et al (2016), Huang et al (2015), Pan et al (2013), and Zhang et al (2012), the proposed FSS exhibits a wider tuning range and higher transmittance, which means that it is of great application value for high-frequency wireless communication systems.…”
Section: Introductionmentioning
confidence: 90%
“…A well-established conventional method for tuning microwave devices is to use active semiconductor devices. Electronically tunable FSS can also be realized through this conventional method; now a considerable amount of different electronically tunable FSSs have been proposed; they were just loading several active semiconductor devices, such as PIN diodes (Fabian-Gongora et al, 2015;Kiani, 2008;Kiani & Bird, 2011;Li, 2016;Li et al, 2017;Yang et al, 2016) or varactors (Bayatpur & Sarabandi, 2010;Ebrahimi et al, 2016;Huang et al, 2015;Li et al, 2016;Pan et al, 2013;Zhang et al, 2012Zhang et al, , 2016 in each unit cell. In this way, the frequency responses can be tuned in real time by changing the state of the PIN diodes or varactors through an external direct current (DC) bias voltage.…”
Section: Introductionmentioning
confidence: 99%
“…FSSs work as a kind of spatial filter, which controls the transmission and reflection properties of electromagnetic waves. FSSs have been widely applied in many fields such as absorbers [2,3], antenna radomes [4,5] and electromagnetic compatibility [6].…”
Section: Introductionmentioning
confidence: 99%