A Conformal Ultrawideband Antenna With Monopole-Like Radiation Patterns

Mohamadzade, Bahare; Simorangkir, Roy B. V. B.; Hashmi, Raheel M.; Lalbakhsh, Ali

doi:10.1109/tap.2020.2969744

Cited by 65 publications

(38 citation statements)

References 33 publications

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“…Fabricating the antenna using the conductive fabric along with PDMS (acting as the substrate and a protective encapsulation simultaneously) allows for an easier realization and more robust flexible antenna structure than the conventional fabrication methods. An ultra wideband antenna is fabricated using the same technique to achieve the flexibility and robustness in [83].…”

Section: Implantable Antenna Fabrication Methodsmentioning

confidence: 99%

Implantable Antennas for Bio-Medical Applications

Malik

Sant

Ajmal

et al. 2021

IEEE J. Electromagn. RF Microw. Med. Biol.

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Antenna design considerations for implantable devices in remote telehealth systems Take-Home Messages • Implantable sensors are pivotal to telehealth systems enabling continuous monitoring of a patient's vital health signs wirelessly. • Antennas are an integral element of these systems whose design is a complex task due to harsh and highly volatile in-body environment and requirements of robust and reliable performance while offering miniature structure, patient safety and biocompatibility. • A comprehensive critical review on the antenna design for implantable medical devices highlighting requirements, challenges, antenna types and human body effects on their performance shows that slotted patch antennas operating at higher frequencies can serve the purpose optimally. • The slotted patch antenna designed in the light of recommendations made offers a small size of 7.5×5×0.25 mm 3 with a-10 dB bandwidth of 25 MHz, a near-omnidirectional pattern and a gain of 1.7 dBi. • The paper can serve as a reference for the antenna designers working in the field of implantable devices providing state-of-the-art, current advancements, requirements, challenges as well as design rules.

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Section: Implantable Antenna Fabrication Methodsmentioning

confidence: 99%

Implantable Antennas for Bio-Medical Applications

Malik

Sant

Ajmal

et al. 2021

IEEE J. Electromagn. RF Microw. Med. Biol.

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“…The proposed antenna in [24] is fabricated by embedding conductive fabric into the flexible polydimethylsiloxane (PDMS) polymer [55][56][57] and all the active and passive elements of the antenna are fully encapsulated in the structure (Figure 2). To realize the antenna reconfigurability, two varactors are placed between a rectangular patch and a parasitic patch (made of conductive fabric) and are biased with same DC voltage.…”

Section: Antennas Based On Electrical Switchesmentioning

confidence: 99%

Recent Developments and State of the Art in Flexible and Conformal Reconfigurable Antennas

et al. 2020

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Reconfigurable antennas have gained tremendous interest owing to their multifunctional capabilities while adhering to minimalistic space requirements in ever-shrinking electronics platforms and devices. A stark increase in demand for flexible and conformal antennas in modern and emerging unobtrusive and space-limited electronic systems has led to the development of the flexible and conformal reconfigurable antennas era. Flexible and conformal antennas rely on non-conventional materials and realization approaches, and thus, despite the mature knowledge available for rigid reconfigurable antennas, conventional reconfigurable techniques are not translated to a flexible domain in a straight forward manner. There are notable challenges associated with integration of reconfiguration elements such as switches, mechanical stability of the overall reconfigurable antenna, and the electronic robustness of the resulting devices when exposed to folding of sustained bending operations. This paper reviews various approaches demonstrated thus far, to realize flexible reconfigurable antennas, categorizing them on the basis of reconfiguration attributes, i.e., frequency, pattern, polarization, or a combination of these characteristics. The challenges associated with development and characterization of flexible and conformal reconfigurable antennas, the strengths and limitations of available methods are reviewed considering the progress in recent years, and open challenges for the future research are identified.

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“…Many efforts have been made to minimize the size of the UWB antennas and the current challenge is to seek a balance between the bandwidth and the physical dimension of the antennas 1‐20 . Reference 1 presented a compact UWB planar antenna by using a corrugated radiator.…”

Section: Introductionmentioning

confidence: 99%

“…Reference 8 introduces both capacitive top hat and inductive shorting vias to realize a compact structure, which shows a robust performance on the human body. The Top hat‐loaded technology is an effective method to extend the low resonant frequency, 17,18 and it can reduce the size of the antenna further to add a gap capacity on the hat 18 . In Reference 19 a wearable button antenna with dual‐band operation is proposed, and the antenna features a very compact size.…”

Section: Introductionmentioning

confidence: 99%

Compact monopole antenna for wireless body area network, wireless local area network, and ultrawideband applications

Zheng

Zhang

Chen

et al. 2021

Int J RF Microw Comput Aided Eng

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In this paper, a wearable ultra‐wideband (UWB) monopole antenna with a compact structure and low profile is presented for wireless body area networks, wireless local area networks, and UWB applications. The antenna is composed of three triangular radiators on the basis of the mono‐cone antenna. By the methods of reactive and slot loading, the dimension of the antenna can be greatly reduced. The overall height of the antenna is 0.06 λ0 at its lowest operating frequency. The radiated structure of the proposed antenna with the dimension of 31 × 31 × 9 mm3, which operates in 2.3 to 12.6 GHz, is fabricated and the measurement results are in good agreement with the simulated ones. Moreover, the influence of the human tissue on the antenna was evaluated, and stable performance can be obtained on the human tissue under different bending conditions. The specific absorption rate values are lower than the limitation set by the European Telecommunications Standards Institute, which indicates that the antenna is suitable for wearable applications.

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A Conformal Ultrawideband Antenna With Monopole-Like Radiation Patterns

Cited by 65 publications

References 33 publications

Implantable Antennas for Bio-Medical Applications

Implantable Antennas for Bio-Medical Applications

Recent Developments and State of the Art in Flexible and Conformal Reconfigurable Antennas

Compact monopole antenna for wireless body area network, wireless local area network, and ultrawideband applications

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