Wideband inverted L-shaped dielectric resonator antenna for medical applications

Suwanta, P.; Krachodnok, P.; Wongson, R.

doi:10.1109/compem.2017.7912828

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…The efficiency of the proposed DRA for microwave imaging applications is verified by comparing its performance with some exiting DRA designs in terms of size, operating frequency, imaging techniques and experimental validation are as given in table 2. In the reported work, the researchers purposed a complex and large sized DRA [14][15][16][17][18]20] for microwave imaging techniques with only narrow or wider frequency bands. Additionally they did not validate their results experimentally with artificial breast phantom [14][15][16][17][18][19][20].The proposed DRA is simple in structure, small in size and provides UWB characteristic.…”

Section: Delay and Sum (Das)mentioning

confidence: 99%

“…In the reported work, the researchers purposed a complex and large sized DRA [14][15][16][17][18]20] for microwave imaging techniques with only narrow or wider frequency bands. Additionally they did not validate their results experimentally with artificial breast phantom [14][15][16][17][18][19][20].The proposed DRA is simple in structure, small in size and provides UWB characteristic. It detects the presence of breast tumor by reconstructing a 2D image in MATLAB.…”

Section: Delay and Sum (Das)mentioning

confidence: 99%

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A low cost and efficient breast cancer detection method with a staircase shaped ultrawide band dielectric resonator antenna using monostatic radar based microwave imaging technique

Kaur

2022

Sādhanā

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In this article, a staircase shaped ultra-wide band dielectric resonator antenna (DRA) has been used as a sensor for detection of breast tumor by monostatic radar based microwave imaging (MRMWI).The proposed DRA has fractional bandwidth (BW) 98.5% and high peak gain 5.98dB along with dual polarization behavior from 5.12-8.2GHz and 11.02-13.8GHz. In MRMWI setup, DRA is placed over the breast phantom at a distance of 7mm and provides the safe exposure of radiation (<1.6W/Kg). For simulation, it rotates around the phantom at a fixed interval in elevation (0-180 • ) and azimuthal (0-360 • ) planes. It works as a radiate and receive the reflected signals towards and from the scanned area simultaneously. To validate the results, fabricated DRA is connected to vector network analyzer and rotates (as done for simulation) around the artificial breast phantom. That is a replica of human breast made from gelatin+sugar, Vaseline and wheat flour+water equivalent to skin, fat and tumor respectively. Afterward S11responses are recorded in the presence and absence of tumor inside the phantom. A significant variation in recorded values leads to the detection of tumor that processed further in beam-forming algorithms; delay and sum (DAS) and delay-multiply and sum (DMAS) to reform 2-dimensional image of tumor in MATLAB.

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Section: Delay and Sum (Das)mentioning

confidence: 99%

Section: Delay and Sum (Das)mentioning

confidence: 99%

A low cost and efficient breast cancer detection method with a staircase shaped ultrawide band dielectric resonator antenna using monostatic radar based microwave imaging technique

Kaur

2022

Sādhanā

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“…The 2D microwave image is reconstructed to get a clue about the position of the breast phantom as shown in figure 14(a The efficiency of the proposed DRA for microwave imaging applications is verified by comparing its performance with some exiting DRA designs in terms of size, operating frequency, imaging techniques and experimental validation are as given in table 2. In the reported work, the researchers purposed a complex and large sized DRA [14][15][16][17][18]20] for microwave imaging techniques with only narrow or wider frequency bands. Additionally they did not validate their results experimentally with artificial breast phantom [14][15][16][17][18][19][20].The proposed DRA is simple in structure, small in size and provides UWB characteristic.…”

Section: 22delay Multiply and Sum (Dmas)mentioning

confidence: 99%

A Low Cost and Efficient Breast Cancer Detection Method With a Staircase Shaped Ultrawide Band Dielectric Resonator Antenna Using Monostatic Radar Based Microwave Imaging Technique

Kaur¹,

Kaur²

2021

Preprint

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In this article, a staircase shaped ultra-wide band dielectric resonator antenna (DRA) has been used as a sensor for detection of breast tumor by monostatic radar based microwave imaging (MRMWI).The proposed DRA has fractional bandwidth (BW) 98.5% and high peak gain 5.98dB along with dual polarization behavior from 5.12-8.2GHz and 11.02-13.8GHz. In MRMWI setup, DRA is placed over the breast phantom at a distance of 7mm and provides the safe exposure of radiation (<1.6W/Kg). For simulation, it rotates around the phantom at a fixed interval in elevation (0-180◦) and azimuthal (0-360◦) planes. It works as a radiate and receive the reflected signals towards and from the scanned area simultaneously. To validate the results, fabricated DRA is connected to vector network analyzer and rotates (as done for simulation) around the artificial breast phantom. That is a replica of human breast made from gelatin+sugar, Vaseline and wheat flour+water equivalent to skin, fat and tumor respectively. Afterward S11responses are recorded in the presence and absence of tumor inside the phantom. A significant variation in recorded values leads to the detection of tumor that processed further in beam-forming algorithms; delay and sum (DAS) and delay-multiply and sum (DMAS) to reform 2-dimensional image of tumor in MATLAB.

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“…To avoid bands like WLAN which is ranged from 5.15 to 5.875 GHz and X-band of satellite which is ranged from 7.25 to 7.85 GHz [10], a band-notched antenna is applied. Several techniques can be used to achieve the band-notched antenna such as adding resonators close to the feedline or cutting slots within the feedline [11][12][13][14]. The technique of cutting two slots is performed by having one slot as an open-ended quarter-wavelength slot from the feedline.…”

Section: Introductionmentioning

confidence: 99%

A Novel Compact Dual Notch With High-Gain Multi-Layer Dielectric Resonator Antenna for Ultrawide-Band Applications

Ahmed¹,

Mohamed²,

Shaalan³

et al. 2022

PIER M

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In this paper, a novel compact high-gain multi-layer dielectric resonator antenna for ultrawideband applications is designed and fabricated. The proposed antenna employs a new technique to make a notch-band for the frequencies within UWB. This technique helps avoid any interference for bands like WLAN and X-band for satellite applications. In this design, several notch bands can get at different frequencies by changing the length of slots. The operating bandwidth of this antenna is between 4.8 GHz and 11.31 GHz with −10 dB return loss and maximum gain of 6 dBi. Finally, the proposed antenna is fabricated and measured to validate the simulation results. The simulation results are obtained by two different simulators; CST Studio suite T M 2020 and HFSS 15 to ensure the validity of the design results before fabrication. The fabricated antenna is measured using Agilent R&S Z67 VNA. There is a good agreement between the simulation and experimental results.

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Wideband inverted L-shaped dielectric resonator antenna for medical applications

Cited by 7 publications

References 5 publications

A low cost and efficient breast cancer detection method with a staircase shaped ultrawide band dielectric resonator antenna using monostatic radar based microwave imaging technique

A low cost and efficient breast cancer detection method with a staircase shaped ultrawide band dielectric resonator antenna using monostatic radar based microwave imaging technique

A Low Cost and Efficient Breast Cancer Detection Method With a Staircase Shaped Ultrawide Band Dielectric Resonator Antenna Using Monostatic Radar Based Microwave Imaging Technique

A Novel Compact Dual Notch With High-Gain Multi-Layer Dielectric Resonator Antenna for Ultrawide-Band Applications

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