Metal/Polymer Based Stretchable Antenna for Constant Frequency Far‐Field Communication in Wearable Electronics

Hussain, Aftab M.; Ghaffar, Farhan A.; Park, Sung I.; Rogers, John A.; Shamim, Atif; Hussain, Muhammad Mustafa

doi:10.1002/adfm.201503277

Cited by 144 publications

(109 citation statements)

References 42 publications

Supporting

Mentioning

107

Contrasting

Order By: Relevance

“…Mater. 2017, 29, 1604989 www.advancedsciencenews.com www.advmat.de www.advancedsciencenews.com www.advmat.de these systems is larger than the 30% stretchability of previously reported designs [37] with 4-µm-thick copper wires due to the adoption of the scissoring physics. The use of thick metal (30 µm) in these layouts leads to highly stretchable antennas.…”

Section: W εmentioning

confidence: 89%

In‐Plane Deformation Mechanics for Highly Stretchable Electronics

et al. 2016

Self Cite

View full text Add to dashboard Cite

Stretchable electronics represents a relatively recent class of technology [1,2] of interest partly due to its potential for applications in sensory robotic skins, [3,4] conformal photovoltaic modules, [5,6] wearable communication devices, [7,8] skin-mounted monitors of physiological health, [9][10][11] advanced, soft surgical and clinical diagnostic tools, [11,12] and bioinspired digital cameras. [13,14] A key challenge in each of these systems is in the development of strategies in mechanics that simultaneously allow large levels of elastic stretchability and high areal coverages of active devices built with materials that are themselves not stretchable (e.g., conventional metals) and are, in some cases, highly brittle (e.g., inorganic semiconductors). For design approaches that embed stretchability in interconnect structures that join rigid device islands, the system level stretchability ε system is much smaller than the interconnect stretchability ε interconnect . Zhang et al. [15] identified the following relationship between the interconnect and system stretchability:, where f dev = (area of active device components)/(total area of the system) is the areal coverage ratio of active device components. Structure designs for stretchable interconnects have evolved from straight [13,16] to curvilinear interconnects, [17] from those bonded to or embedded in the supporting substrate [11,18] to free-standing designs housed in microfluidic enclosures, [19] and from simple structures [17] to fractal/self-similar designs. [15,[20][21][22] All such cases, including a broad variety of shapes, sizes, and geometric arrangements, share the same underlying mechanisms, i.e., out-of-plane buckling of thin structures (metals, insulators, or semiconductors with thickness typically between ≈100 nm and ≈1 µm) provides the basis for elastic stretchability. The most advanced interconnects achieve elastic (reversible)

show abstract

Section: W εmentioning

confidence: 89%

In‐Plane Deformation Mechanics for Highly Stretchable Electronics

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, alternating frequencies and frequency ranges <1.5 GHz limits their applications in wearable and healthcare applications that demand constant frequency in a range around 2.4 GHz. Hussain et al [33] developed a novel stretchable antenna that can sustain far-field communications up to a distance of 80 m at 1.28 mW transmitting power with a constant radiating frequency of 2.45 GHz invariable with the stretchability. The flexibility was incorporated by metal/polymer approach whereas the constant frequency radiation was possible due to the innovative serpentine design of the antenna which do not alter the length on stretching.…”

Section: Communication Module (Antenna)mentioning

confidence: 99%

Freeform Compliant CMOS Electronic Systems for Internet of Everything Applications

Shaikh

Ghoneim

Sevilla

et al. 2017

IEEE Trans. Electron Devices

Self Cite

View full text Add to dashboard Cite

“…In 2015, Hussain et al used metal itself as a stretchable antenna such that the resonance frequency and gain of the antenna did not shift with stretching up to 30% strain [190] (Figure 11d). This was achieved by patterning the metal in a meandering spring structure.…”

Section: Fractal Serpentine Structuresmentioning

confidence: 99%

“…[190] . The operation environment (in vivo or in vitro) is a critical design consideration for intimate contact freeform wearable or implantable electronics, which adds difficulties from an operational standpoint.…”

Section: Future Outlook and Concluding Remarksmentioning

confidence: 99%