Design and analysis of a compact circularly polarized DRA for off-body communications

Meher, Priya Ranjan; Behera, Bikash Ranjan; Mishra, Sanjeev Kumar; Althuwayb, Ayman A.

doi:10.1016/j.aeue.2021.153880

Cited by 12 publications

(7 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the measured AR < 3 dB bandwidth is 7.2% (27.9-30.1 GHz). Similarly, the simulated and measured 3 dB gain bandwidth is 16.9% (27)(28)(29)(30)(31)(32).…”

Section: Experimental and Simulated Ar Gain And Efficiencymentioning

confidence: 77%

“…The comparison of the explained antenna model is summarized in Table 1 with already proposed lens-loaded antennas [21][22][23][24]29,30 and simple DRAs. 9,31 The proposed antenna characteristics in terms of volume, frequency range, antenna type gain, efficiency and polarization sense are compared with published models. The proposed antennas in 22,32 provided a high gain of 15.1 and 12.2 dBi, respectively.…”

Section: Comparison With Already Proposed Antennasmentioning

confidence: 99%

“…However, the volume of the antennas is larger and linearly polarized. The DRAs in 9,31,33 operate in higher and lower frequency bands (between 1 and 40 GHz) with a higher impedance bandwidth (%) and are compact according to the proposed frequencies. However, the gain of the antennas is 3.98, 7.5 and 6.1 dBi, respectively, and is smaller than the gain achieved in this paper.…”

Section: Comparison With Already Proposed Antennasmentioning

confidence: 99%

See 2 more Smart Citations

Corners‐slotted wideband patch antenna gain enhancement with a 3D dielectric lens for Ka‐band satellite communication

Ullah,

Rahman,

Liu

et al. 2024

Int J Communication

View full text Add to dashboard Cite

SummaryTo improve the gain of the corner‐slotted, wideband microstrip patch antenna (MPA), a three‐dimensional (3D) hemispherical dielectric lens (DL) and dielectric cylinder‐based hybrid structure is introduced. DL is constructed and integrated on the surface of the patch antenna to increase the gain performance. Three‐dimensional printing techniques contribute considerably to lens production. The 3D manufacturing technique provides greater freedom and versatility than conventional manufacturing methods. The DL increased the proposed single‐patch antenna gain from 6.2 to 13.7 dBi with stable gain fluctuation in the working frequency spectrum spanning between 27.5 and 31 GHz. This implies a notable increase in gain of 7.5 dBi and a consistently uniform gain characteristic throughout a 5‐GHz wide frequency range. Furthermore, the DL‐loaded antenna parameters such as |S11|, gain (dBi), axial ratio (AR), radiation efficiency (%), and radiation patterns measured results are compared with simulated plots. Overall, the measured results agree well with the simulated findings. Based on the results, the compact antenna can be chosen for different wireless applications, especially for satellite communication in the proposed band.

show abstract

“…Also, the measured AR < 3 dB bandwidth is 7.2% (27.9-30.1 GHz). Similarly, the simulated and measured 3 dB gain bandwidth is 16.9% (27)(28)(29)(30)(31)(32).…”

Section: Experimental and Simulated Ar Gain And Efficiencymentioning

confidence: 77%

Section: Comparison With Already Proposed Antennasmentioning

confidence: 99%

Section: Comparison With Already Proposed Antennasmentioning

confidence: 99%

See 1 more Smart Citation

Corners‐slotted wideband patch antenna gain enhancement with a 3D dielectric lens for Ka‐band satellite communication

Ullah,

Rahman,

Liu

et al. 2024

Int J Communication

View full text Add to dashboard Cite

show abstract

“…Similarly, the lower-end cutoff frequency shifted from 4.1 GHz to 4.3 GHz. Meher et al have developed a compact and circularly polarized monopole antenna with a slightly bent perpendicular ground plane and a dielectric resonator parallel to the monopole in their recent work [64]. This antenna showed an axial ratio bandwidth of 6.22 GHz to 7.33 GHz for free air, 6.21 GHz to 7.22 GHz on the body, and 6.20 GHz to 7.28 GHz on the phantom.…”

Section: B Circularly Polarized Antennamentioning

confidence: 99%

Wireless Body Area Networks and Their Applications—A Review

et al. 2023

View full text Add to dashboard Cite

In this paper, a comprehensive review of the wireless body area network is provided. A review of the WBAN architectures, standard network topologies, and WBAN communication protocols is discussed in detail. Also, the security requirements of WBAN, security threats and types of attacks, and authentications used in WBAN are discussed. The paper also includes very detailed coverage of antenna types, antenna designs, and flexible antennas used in WBAN with some design considerations and comparisons. Some new energy harvesting technologies, materials used for energy harvesting, and energy management are also discussed. Energy harvesting and power management is an ever-growing area of research. Despite the fact that there are many nanogenerator-based energy harvesting methods, the demand for more efficient energy harvesting mechanisms is ever-increasing. The paper has an extensive discussion of energy harvesting and power management methods. Subsequently, some reviews of recent developments in wearable sensors and novel materials for developing wearable sensors are discussed. Finally, the application areas of WBAN are discussed INDEX TERMS Body area network, network security, wireless communication protocols, wearable sensors, energy harvesting, WBAN, flexible sensors, IoT.

show abstract

“…In order to balance the trade-offs [7], microwave antennas are the top-most priority. They are classified as dipole antennas [18][19][20][21], monopole antennas [22][23][24][25], loop antennas [26][27][28][29], slot antennas [30][31][32][33], microstrip antennas [34][35][36][37], Vivaldi antennas [38][39][40][41], and DRAs [42][43][44][45]. Further, the classification is divided into helical antennas [46][47][48][49], Yagi-Uda antennas [50][51][52][53], and log-periodic antennas [54][55][56][57].…”

Section: Reconfigurable Antennas and Their Usage In Rf Energy Harvest...mentioning

confidence: 99%

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

et al. 2023

Self Cite

View full text Add to dashboard Cite

Due to the widespread use of low-power embedded devices in both industrial and consumer applications, research into the use of alternate energy sources has been sparked by the requirement for continuous power. Due to its accessibility and ability to be implanted, RF energy is always taken into consideration among the traditional energy sources that are currently available. There is a significant necessity for efficient RF front-ends, which must provide effective circular polarization (CP) features, effectiveness, feasibility from a design standpoint, and optimal usage of ambient RF signals accessible in the environment. So, for understanding their utilization in RF energy harvesting, a metasurface reflector-inspired CP-printed reconfigurable antenna integrated with a Greinacher voltage divider (GVD) rectifier circuit is reported. It offers broadband CP with fractional bandwidth > 25%, CP gain > 8.35 dBic, and directional radiation with the 3 dB angular beamwidth > 100° in the 3.5/5 GHz bands. With the integration of the rectifier circuit, a theoretical DC output > 4.8 V at 12 dBm is obtained. The acceptable impedance bandwidth, axial ratio bandwidth, antenna gain, antenna efficiency, and directional radiation with a 3 dB angular beamwidth value are studied and subsequently matched with the trade-offs (usage of diodes, complexity of DC biasing circuits, and attainment of polarization reconfigurability) obtained from the state of the art. A comprehensive study of the reconfigurable antennas is reported to highlight the findings as a widespread solution for these limitations in RF energy harvesting application.

show abstract

Design and analysis of a compact circularly polarized DRA for off-body communications

Cited by 12 publications

References 17 publications

Corners‐slotted wideband patch antenna gain enhancement with a 3D dielectric lens for Ka‐band satellite communication

Corners‐slotted wideband patch antenna gain enhancement with a 3D dielectric lens for Ka‐band satellite communication

Wireless Body Area Networks and Their Applications—A Review

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

Contact Info

Product

Resources

About