Monopole‐like and semi‐directional reconfigurable pattern antenna for wireless body area network applications

Mohamadzade, Bahare; Simorangkir, Roy B. V. B.; Gharaei, Reza; Lalbakhsh, Ali

doi:10.1002/mop.31968

Cited by 16 publications

(12 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be deduced from the current patterns that, the two operating modes at these two frequencies correspond respectively to the TM 01 and TM 02 modes. The currents vary along the radial direction but are independent of the azimuth angle (φ), hence the produced fields [23], [27]. Consequently, vertical-monopole like radiations are expected from this antenna.…”

Section: A Design Stepsmentioning

confidence: 99%

A Conformal Band-Notched Ultrawideband Antenna With Monopole-Like Radiation Characteristics

Mohamadzade

Simorangkir

Hashmi

et al. 2020

Antennas Wirel. Propag. Lett.

Self Cite

View full text Add to dashboard Cite

A conformal, planar, and low profile ultrawideband (UWB) antenna with monopole-like radiation and band-notched characteristics is presented. A circular patch shorted to the ground is combined with two rectangular slots and two concentric rings, to achieve an ultra-wide bandwidth from 3.8 to 8.3 GHz with a single rejection band from 5 to 6 GHz. The monopolelike radiation features, generated by combining TM01 and TM02 operating modes of a circular patch antenna, are maintained over the entire operating bandwidth. The antenna has only 0.046λo height at 3.8 GHz and is realized using polydimethylsiloxane (PDMS)-conductive fabric composite technology making it highly flexible and physically robust. This was validated through severe bending tests with various curvatures.

show abstract

Section: A Design Stepsmentioning

confidence: 99%

A Conformal Band-Notched Ultrawideband Antenna With Monopole-Like Radiation Characteristics

Mohamadzade

Simorangkir

Hashmi

et al. 2020

Antennas Wirel. Propag. Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, our discussion of pattern reconfiguration includes antennas that can reconfigure the radiation pattern to two (a special case often also referred to as "switchable antennas") or more states. In the presented flexible pattern reconfigurable antennas, the reconfigurability was achieved by using an electrical switch by changing the ground or radiator shapes [80][81][82][83][84], switching between two types of the antenna combined in a main structure [85], shorting the radiator to the ground plane [86,87], switching between feeding ports [88] or physical reconfiguration by changing the antenna's shape or type [89][90][91][92][93][94][95].…”

Section: Pattern-reconfigurable Antennasmentioning

confidence: 99%

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

et al. 2020

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…The THz radiation in the PCA is simulated through full wave FDTD . However, the matching of simulated and experimental results is more challenging in time‐domain graphs, and therefore the validation in the THz regime is often presented solely in the frequency‐domain …”

Section: The Verification Of the Numerical Simulationmentioning

confidence: 99%

Numerical simulation of terahertz radiation in photoconductive antenna

Xiong

Chen

et al. 2020

Micro & Optical Tech Letters

View full text Add to dashboard Cite

The terahertz radiation in photoconductive antenna involves the multiple physical processes. It is a challenge to simulate the terahertz radiation in photoconductive antenna. A numerical simulation tool for the photoconductive antenna is very necessary to effectively design and optimize the terahertz radiation source. In this paper, by introducing the auxiliary equations describing the dynamic behaviors of carriers in the semiconductor into the Maxwell's equations, we use the three‐dimensional finite‐difference time‐domain method to solve these equations and obtain the time‐domain solutions in the nearfield of antenna. A near‐to‐far‐field transformation in the layered medium is adopted in order to obtain the wave pattern of terahertz radiation in the far field. Assisted by the developed simulation tool, the terahertz time‐domain waveforms and other terahertz radiation characteristics for the photoconductive antenna can be presented. By comparing with the experimental results reported in the references, the validity and reliability of these physical models and the developed simulation tool are demonstrated. More importantly, the results given in this paper will be of great significance to design and optimize the radiation performance of photoconductive antenna with different structures.

show abstract

Monopole‐like and semi‐directional reconfigurable pattern antenna for wireless body area network applications

Cited by 16 publications

References 12 publications

A Conformal Band-Notched Ultrawideband Antenna With Monopole-Like Radiation Characteristics

A Conformal Band-Notched Ultrawideband Antenna With Monopole-Like Radiation Characteristics

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

Numerical simulation of terahertz radiation in photoconductive antenna

Contact Info

Product

Resources

About