Design, Fabrication, and Characterization of a Wideband 60 GHz Bandpass Filter Based on a Flexible PerMX Polymer Substrate

Seok, Seonho; Kim, Janggil

doi:10.1109/tcpmt.2013.2240040

Cited by 19 publications

(11 citation statements)

References 22 publications

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“…Finally, we compared the proposed filter with the filters in references . The filters in references have frequency‐tunable performance, but they are not suitable for flexible applications.…”

Section: Resultsmentioning

confidence: 99%

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A flexible liquid-metal alloy bandpass filter

Guo

Chen

et al. 2018

Int J RF Microw Comput Aided Eng

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This article presents a liquid‐metal Galinstan alloy bandpass filter (BPF) with good flexibility, which is fabricated by an improved soft lithography process. The Galinstan alloy is enclosed in the microfluidic channels of elastomeric polydimethylsiloxane (PDMS) substrates. Together with the PDMS substrates, the Galinstan alloy based filter features bending, twisting and stretching capabilities along any direction. A second‐order open‐loop resonator filter with 2.4 GHz center frequency and 15% fractional bandwidth was designed and fabricated to verify this concept. Experiments show that frequency response of the filter is almost unaffected in the case of bending of the different radii or twisting, while its center frequency slightly shifts down in the stretching condition. The proposed filter can be used for the flexible and conformal electronics.

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Section: Resultsmentioning

confidence: 99%

“…The filters in references have frequency‐tunable performance, but they are not suitable for flexible applications. The filters in references are bendable, however, less stretchable or twistable. Comparison results show that our filter exhibits better flexibility, including bendable, twistable, and stretchable performance.…”

Section: Resultsmentioning

confidence: 99%

A flexible liquid-metal alloy bandpass filter

Guo

Chen

et al. 2018

Int J RF Microw Comput Aided Eng

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“…Such material is a new and promising organic one for RF and microwave applications. In the recent years, many flexible components have been researched, such as a 60 GHz parallel‐coupled filter with 50 um PerMX3050 , a 30GHz hairpin bandpass filter with 100 um LCP substrate , a 25 GHz inter digital coupled lines filter with 100 um LCP substrate , and a 2.4–2.5 GHz bandpass filter with 127 um FPCB . In contrast to other substrates, LCP substrate exhibits excellent flexibility and ductility.…”

Section: Introductionmentioning

confidence: 99%

UWB flexible filter with low loss and excellent stopband performance

Zhao

Zhang

Liu

et al. 2016

Micro & Optical Tech Letters

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The compact UWB flexible filter with low loss and excellent stop band suppression on ultrathin liquid crystal polymer substrate is presented firstly. A uniform microstrip line connected with five pairs of stubs is used. The flexible filter with the pass band of 4.1–10.6 GHz. The measured minimum insertion loss is 0.76 dB at 5.4 GHz and the return loss is better than 11.3 dB. While the frequency is higher than 12.1 GHz, excellent high resistance band suppression is obtained. The bending behavior of the UWB flexible filter is analyzed. In case of R = 17.5 mm, the insertion loss is only improved by 0.004 dB and the return loss is optimized by 0.45dB. Good agreement is obtained between the flat and the bending. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:194–197, 2017

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“…The potential advantages of printed electronics include ultra-low cost, rapid prototyping, low temperature processing, and roll-to-roll manufacturing on flexible plastic substrates. The ability to print electronic materials on flexible thin substrates has been exploited for radio frequency (RF) communication components such as filters [1], transistors [2,3], switches [4] and antennas [5][6][7]. Among various antenna types, microstrip antennas are particularly desirable for numerous wireless applications due to their simplicity, low cost, low profile, conformability to curved surfaces, and versatility in design [8].…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Haghzadeh¹,

Jaradat²,

Armiento³

et al. 2016

PIER C

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Abstract-A fully printable and conformal antenna array on a flexible substrate with a new LeftHanded Transmission Line (LHTL) phase shifter based on a tunable Barium Strontium Titanate (BST)/polymer composite is proposed and computationally studied for radiation pattern correction and beam steering applications. First, the subject 1 × 4 rectangular patch antenna array is configured as a curved conformal antenna, with both convex and concave bending profiles, and the effects of bending on the performance are analyzed. The maximum gain of the simulated array is reduced from the flat case level by 34.4% and 34.5% for convex and concave bending, respectively. A phase compensation technique utilizing the LHTL phase shifters with a coplanar design is used to improve the degraded radiation patterns of the conformal antennas. Simulations indicate that the gain of the bent antenna array can be improved by 63.8% and 68% for convex and concave bending, respectively. For the beam steering application, the proposed phase shifters with a microstrip design are used to steer the radiation beam of the antenna array, in planar configuration, to both negative and positive scan angles, thus realizing a phased array antenna.

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Design, Fabrication, and Characterization of a Wideband 60 GHz Bandpass Filter Based on a Flexible PerMX Polymer Substrate

Cited by 19 publications

References 22 publications

A flexible liquid-metal alloy bandpass filter

A flexible liquid-metal alloy bandpass filter

UWB flexible filter with low loss and excellent stopband performance

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

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