A new compact dual band CP antenna design

Saygın, Hasan; Rafiei, Vahid; Karamzadeh, Saeid

doi:10.1002/mop.31019

Cited by 7 publications

(5 citation statements)

References 11 publications

(24 reference statements)

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“…To do SAR analysis, a three-dimensional anatomical hand and head phantom model is taken. The simulation of SAR is performed using finite-difference time domain (FDTD) method of computer simulation technology microwave studio (CST) [14][15][16]. The SAR values are evaluated on 1 gm bological tissue.…”

Section: On-body Placement Analysismentioning

confidence: 99%

“…A foldable thin circular monopole antenna is designed with liquid crystalline polymer substrate for wearable applications with different bending conditions [13]. A tai-chi-shaped antenna is designed with circular polarisation for dual-band applications in [14]. A conformal antenna is designed on a paper substrate with graphene as a radiating element instead of copper in [15].…”

Section: Introductionmentioning

confidence: 99%

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Asymmetric Ground Structured Circularly Polarized Antenna for Ism and Wlan Band Applications

Nadh¹,

Madhav²,

Kumar³

et al. 2018

PIER M

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This article presents the design and analysis of a dual-band antenna with circular polarization for ISM and WLAN band applications. The proposed antenna operates at two frequencies ranging from 2.1-3.1 GHz and 4.4-7.7 GHz with resonating frequencies at 2.45 GHz industrial, scientific and medical band (ISM) and 5.8 GHz wireless local area network band (WLAN). The antenna is fed by coplanar waveguide feeding (CPW) with an asymmetric ground structure, and the radiating element consists of 24 spokes in the design. The current antenna providing the impedance bandwidths of 38.4% and 49% at two operating bands. The proposed antenna exhibiting circular polarisation with 3 dB axial ratio bandwidth of 150 MHz at 2.33-2.48 GHz and 1600 MHz at 5.14-6.74 GHz. The designed antenna is fabricated on an RT Duroid 5880 substrate with dimensions of 40 × 28 × 0.4 mm 3 . The intension behind the design of this antenna is to use it for wearable applications in conformal nature with low specific absorption rate (SAR). The SAR values observed at two operating frequencies are 1.09 W/Kg and 1.47 W/Kg on hand and 0.946 W/Kg and 1.12 W/Kg on head, respectively. The placement and radiation characteristics analysis is done with Ansys Savant tool, and the subsequent measured results provide good correlation with simulation results.

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Section: On-body Placement Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Asymmetric Ground Structured Circularly Polarized Antenna for Ism and Wlan Band Applications

Nadh¹,

Madhav²,

Kumar³

et al. 2018

PIER M

View full text Add to dashboard Cite

show abstract

“…In contemporary times, several researchers endeavour to create CP antennas using diverse methodologies, aiming to achieve radiation qualities that are deemed adequate [21]. The Tia Chi-shape in the layout of the antenna is introduced in [22]. Placing a metal strip into a T-shaped stub in the high-frequency region increases isolation [23].…”

Section: Introductionmentioning

confidence: 99%

Compact and high gain cup-shaped 4-Port MIMO antenna using low profile material for the sub-6 GHz, IoT and military applications

Kannan,

Taher,

Sree

et al. 2024

Phys. Scr.

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The article introduces a novel design of a miniaturised and high-gain 4-Port MIMO antenna ingeniously crafted as a cup. The evolution of the radiating structure, achieved through meticulous iterations involving alterations to the patch element's shape and feedline modifications, underscores the commitment to optimal performance. Leveraging parametric analysis, which includes strategic adjustments to the ground layer's length, incorporation of vertical and horizontal slots, and the addition of a parasitic patch in the top layer, our proposed framework spans the spectrum from 1 GHz to 14 GHz. The antenna exhibits a tripartite frequency response at 4.6 GHz, 8.7 GHz, and 13 GHz, showcasing a peak bandwidth of 5.5 GHz and a minimum return loss of -24.22 dB. Remarkably, the design achieves a peak gain of 8.32 dB, coupled with stellar performance in diverse parameters such as ECC, MEG, TARC, CCL, and DG. Constructed with low-profile FR4 material, the antenna thoroughly compares simulated and measured results, affirming its robust performance. This innovative architecture, poised for Sub6GHz, IoT, and military applications.

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“…Nowadays, many researchers attempt to design CP antennas with various techniques and satisfactory radiation properties [12–14]. One of these techniques is using Tia Chi-shape in antenna's configuration [15, 16]. In [15] by using an asymmetric microstrip feed line and a parasitic patch, a complete Tai chi-shape in the antenna structure is realized and it achieves IBWs from 3.1 to 4.58 and 4.97–6.53 GHz and axial ratio bandwidths (ARBWs) from 3.26–4.42 and 5.45–6.63 GHz.…”

Section: Introductionmentioning

confidence: 99%

“…One of these techniques is using Tia Chi-shape in antenna's configuration [15, 16]. In [15] by using an asymmetric microstrip feed line and a parasitic patch, a complete Tai chi-shape in the antenna structure is realized and it achieves IBWs from 3.1 to 4.58 and 4.97–6.53 GHz and axial ratio bandwidths (ARBWs) from 3.26–4.42 and 5.45–6.63 GHz. In addition, a CP array antenna introduced in [16] uses semi-fractal radiation patches with Tai chi-shape, which covers the frequency range from 5.3 to 6.8 GHz and has ARBW from 5.4 to 6.6 GHz.…”

Section: Introductionmentioning

confidence: 99%

Four-element MIMO antenna for X-band applications

Eslami

Nourinia

Ghobadi

et al. 2021

Int. J. Microw. Wireless Technol.

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This study presents a new design of a four-element multiple-input multiple-output (MIMO) antenna, which is suitable for X-band applications. The circular polarization (CP) operation in this work is attained by using Tai Chi-shaped patches and L-shaped feeds. The proposed four-element MIMO antenna achieves two resonant frequencies, the first one at around 7.75 GHz and the second one with CP radiation is at approximately 10.15 GHz frequency. The measured isolations between ports with 46.7 × 46.7 mm2 total dimensions are <−20 dB. Due to the experiments, the envelop correlation coefficient for the orthogonal and parallel ports of the proposed MIMO antenna is <0.003 and 0.005, respectively. Additionally, the presented antenna has a circularly polarized performance in the frequency band of 9.75–10.41 GHz and the average realized peak gain almost 2 dBic. The investigated antenna in this work is fabricated and tested in which the results are in a good agreement.

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A new compact dual band CP antenna design

Cited by 7 publications

References 11 publications

Asymmetric Ground Structured Circularly Polarized Antenna for Ism and Wlan Band Applications

Asymmetric Ground Structured Circularly Polarized Antenna for Ism and Wlan Band Applications

Compact and high gain cup-shaped 4-Port MIMO antenna using low profile material for the sub-6 GHz, IoT and military applications

Four-element MIMO antenna for X-band applications

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