Design and Preliminary Evaluation of a superficial applicator for hyperthermia with a new coaxially fed antenna: Theoretical models

Trujillo, C. J.; Leija, L.; Vera, A.

doi:10.1109/pahce.2010.5474597

Cited by 9 publications

(5 citation statements)

References 9 publications

(8 reference statements)

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“…Based on the power absorption microwave antenna applicators raise the temperature of tumor and has a potential to create longer and effective thermal lesion at a greater depth. One of the main advantage is application time which is shorter for microwave frequencies [4]. The federal communication commition (FCC) or International telecommunication union (ITU) permit several unrestricted frequency bands for industrial, scientific and medical uses in several regions including those most commonly used frequencies for microwave ablation are 915MHZ and 2.45GHZ [5].…”

Section: Introductionmentioning

confidence: 99%

Design of Microwave Antenna for Hyperthermia System

Sethi¹,

Nijhawan²

2016

IJWMT

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Hyperthermia is a thermal therapy for cancer treatment in which body temperature is exposed to elevated temperature of 40-42 o C. Microwave ablation has a potential to be sensitive to changes in the dielectric tissue parameters which results in damaging abnormal tissues. In order to produce heat in the focused area microwave signals are adjusted in time, frequency and strength. The commonly used frequencies in microwave imaging systems are 415MHZ and 2.45GHZ which are transmitted from the antennas enclosing the relevant body part. This paper presents a highly efficient E-Shape micro strip patch microwave antenna operated at 2.45 GHz which can be used in various applicators for hyperthermia treatment system. The simulation is done on IE3D simulator. The results are compared at two feeding points 1 and 2 for the frequency 2.45GHZ. It gives return loss of-19.3dB, bandwidth of 6.2dB and the antenna efficiency of 92% for feeding point 1 which proves to be highly effective in communication.

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Section: Introductionmentioning

confidence: 99%

Design of Microwave Antenna for Hyperthermia System

Sethi¹,

Nijhawan²

2016

IJWMT

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“…Several RF and microwave applicators for noninvasive local and regional hyperthermia have been reported [3][4][5][6][7][8][9]. The depth of a tumor from the skin layer will determine the operating frequency for hyperthermia applicator heating.…”

Section: Introductionmentioning

confidence: 99%

Efficient single-band and dual-band antennas for microwave imaging and hyperthermia treatment of brain tumors

Ali

Haraz

Elshafiey

et al. 2014

2014 IEEE International Conference on Control System, Computing and Engineering (ICCSCE 2014)

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In this paper, a new single-band and dual-band printed folded-dipole antennas for microwave imaging and phased array hyperthermia treatment of brain are proposed. Single-band antenna is properly designed by making parametric study to operate at 434 MHz under clinical conditions. Design for dual-band antenna at 433 MHz ISM band and 850 MHz is proposed to achieve acceptable energy penetration and localization. Results of SAR distributions within the human tissue illustrate the promising performance of this applicator design. Keywords-Dual-band antennas, folded-dipole antennas, hyperthermia, phased array, single-band antennas, ISM bands, specific absorption rate (SAR), MR compatibility.I.

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“…Several applicators have been developed for noninvasive local and regional hyperthermia applications [5][6][7][8][9][10][11]. Usually superficial hyperthermia applicators use single relatively big antennas (local hyperthermia), whereas for deep located tumors, a multiantenna system is used (regional hyperthermia).…”

Section: Introductionmentioning

confidence: 99%

A Compact Microstrip Spiral Antenna Embedded in Water Bolus for Hyperthermia Applications

Korkmaz

Isik

Nassor

2013

International Journal of Antennas and Propagation

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This paper presents the design, simulation, fabrication, and measurement of a circular spiral microstrip antenna embedded in distilled water bolus. The antenna is mainly designed to operate at 434 MHz ISM band to be used for a hyperthermia applicator. The performance of the antenna is compared to a conventional patch antenna also embedded in water bolus. The results show that spiral antenna has significant narrower radiation pattern and is capable to operate at multiple frequencies as well. Narrow beam of the antenna is desired to design a multiantenna arrangement with less coupling and a better focusing resolution which can be crucial for deep regional hyperthermia applications. The option of other frequencies is desirable to have a better control over the penetration depth versus focusing depending on the application region.

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Design and Preliminary Evaluation of a superficial applicator for hyperthermia with a new coaxially fed antenna: Theoretical models

Cited by 9 publications

References 9 publications

Design of Microwave Antenna for Hyperthermia System

Design of Microwave Antenna for Hyperthermia System

Efficient single-band and dual-band antennas for microwave imaging and hyperthermia treatment of brain tumors

A Compact Microstrip Spiral Antenna Embedded in Water Bolus for Hyperthermia Applications

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