Tem Horn Antenna for Ultra-Wide Band Microwave Breast Imaging

Amineh, Reza K.; Trehan, Aastha; Nikolova, and Natalia K.

doi:10.2528/pierb08122213

Cited by 73 publications

(16 citation statements)

References 20 publications

(23 reference statements)

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“…This is an inhomogeneous developed dielectric medium that has the capability to act as a skin, tissue, and tumor. The conductivity and permittivity of tissue, skin, and tumor can be given from Table 2, which is analyzed and calculated in [13]. …”

Section: Proposed Resonator Based Antenna Application In Breast Tumentioning

confidence: 99%

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Resonator Based Switching Technique between Ultra Wide Band (UWB) and Single/Dual Continuously Tunable-Notch Behaviors in UWB Radar for Wireless Vital Signs Monitoring

Rahman

Naghshvarianjahromi

Mirjavadi

2018

Sensors

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This paper presents a novel resonator that can switch and create three important behaviors within the same antenna using miniaturized capacitors. The resonator was integrated into conventional Ultra-Wide Band (UWB) antenna to achieve UWB and Single/Dual continuously tunable-notch behaviors. The Single/Dual notched was continuously tuned to our desired frequency band by changing the value of the capacitors. The antenna designed and fabricated to validate these behaviors had a compact size of 24 × 30.5 mm2, including the ground plane. The radiation patterns were very clean due to the placement of the proposed resonator in the special ground plane. Moreover, the presented novel resonator and switching technique was compared with the recently proposed resonators and their switching techniques. The prototype for the antenna was also developed in order to validate its performance in wireless vital signs monitoring. The presented miniaturized resonator based antenna was utilized for tumor sensing and simulations were provided in this regard. Moreover, the deployment of the proposed resonator based UWB antenna sensor in Pipeline Integrity Monitoring system was also investigated and discussed.

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Section: Proposed Resonator Based Antenna Application In Breast Tumentioning

confidence: 99%

“…For tissue sensing applications, numerous types of UWB antennas as antenna sensors have been developed in past. Some common examples among them are microstrip patch antenna [12], planar monopole [13], and planar “dark eyes” [14]. …”

Section: Introductionmentioning

confidence: 99%

Resonator Based Switching Technique between Ultra Wide Band (UWB) and Single/Dual Continuously Tunable-Notch Behaviors in UWB Radar for Wireless Vital Signs Monitoring

Rahman

Naghshvarianjahromi

Mirjavadi

2018

Sensors

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“…The work uses real breast phantom and image reconstruction algorithms. The near field directivity (NFD) factor is computed using the formula in [24], which is the ratio of radiated power through the front of the antenna (Pf) and the total power radiated through the surface of the breast model (PT). With the value of using the resonant bandwidth of the proposed antenna ka = 1.42.…”

Section: Mtm Antenna Performance Analysis and Microwave Imagingmentioning

confidence: 99%

“…The near field directivity (NFD) factor is computed using the formula in [24], which is the ratio of radiated power through the front of the antenna (Pf) and the total power radiated through the surface of the breast model (PT). The near field directivity (NFD) factor is computed using the formula in [24], which is the ratio of radiated power through the front of the antenna (Pf) and the total power radiated through the surface of the breast model (PT). Figure 13 shows the NFD factor for a proposed side slotted Vivaldi antenna (SSVA).…”

Section: Mtm Antenna Performance Analysis and Microwave Imagingmentioning

confidence: 99%

A Negative Index Metamaterial to Enhance the Performance of Miniaturized UWB Antenna for Microwave Imaging Applications

et al. 2017

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Abstract:A new, compact planar wideband negative index metamaterial based on a modified split ring resonator (SRR) is studied to enhance performance of ultrawideband antenna. A compact, metamaterial (MTM)-inspired microstrip antenna is presented for microwave imaging system (MIS) application. Two layers of left-handed metamaterial array (2 × 4) of the unit cell are placed on the radiating patch and the ground plane, respectively. Each left-handed metamaterial (LHM) unit cell was constructed by modifying a square split ring resonator (SRR), resulting in negative permeability and permittivity with a stable negative refractive index. The results shows that it has a significant impact on the performance of conventional patch antenna in terms of transmission co-efficient, efficiency and low loss. Compared to antenna without LHM, it is shown that the bandwidth is significantly broadened up to a few megahertz and becomes more convergent leading to the achievement of desired properties for ultra-wideband (UWB) applications leading to microwave imaging. The proposed MTM antenna structure is fabricated on commercially-available, flame-retardant material of size 26 × 22 × 1.6 mm 3 with 4.6 dielectric constants, due to its low cost and convenience for making multilayer printed circuit boards (PCBs). The antenna achieves 3.1 GHz to 10.71 GHz of impedance bandwidth (−10 dB), which covers the full UWB band. The use of double-layer negative index MTM unit cells enhances UWB performance, and the improved radiation efficiency, nearly directional radiation pattern, acceptable gain, stable surface current and negative refractive index make this MTM antenna a suitable candidate for UWB applications.

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“…These boundaries reflect UWB signals due to difference in dielectric properties between these various constituent tissues at microwave frequencies. The wide frequency-spectrum of the UWB signal means they are relatively robust to interference, while also allowing for very fine spatial resolution, making the technology ideal breast cancer detection and classification [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], heart and respiration monitoring [18][19][20][21]. Furthermore, UWB Radar uses low-power non-ionising radiation and is therefore a safe method for imaging and continuous monitoring.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Compression on Ultra Wideband Radar Signals

McGinley¹,

O’Halloran²,

Conceição³

et al. 2011

PIER

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Abstract-Over the past ten years, Ultra Wideband (UWB) Radar has been widely investigated as a biomedical imaging modality, used to detect early-stage breast cancer and to continuously monitor vital signs using both wearable and contactless devices. The advantages of the technology in terms of low-power requirements and non-ionising radiation are well recognised, with the technology being applied to a range of non-invasive medical applications, from respiration to heart monitoring. Across all these applications, there is a strong necessity to efficiently manage the large quantities of UWB data which will be captured. For wearable devices in particular, the efficient compression of UWB data allows the monitoring system to conserve limited resources such as memory and battery capacity, by reducing data storage and in some cases transmission requirements. In contrast to lossless compression techniques, lossy compression algorithms can achieve higher compression ratios and consequently greater power savings, at the expense of a marginal degradation of the reconstructed signal. This paper compares the lossy JPEG2000 and Set Partitioning In Hierarchical Trees (SPIHT) algorithms for UWB signal compression. This study examines the effects of lossy signal compression on an UWB breast cancer classification algorithm. This particular application was chosen because the classification algorithm relies heavily on shape and surface texture detail embedded in the Radar Target Signature (RTS) of the tumour, and therefore will provide both a robust and easily quantifiable test platform for the compression algorithms. The

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Tem Horn Antenna for Ultra-Wide Band Microwave Breast Imaging

Cited by 73 publications

References 20 publications

Resonator Based Switching Technique between Ultra Wide Band (UWB) and Single/Dual Continuously Tunable-Notch Behaviors in UWB Radar for Wireless Vital Signs Monitoring

Resonator Based Switching Technique between Ultra Wide Band (UWB) and Single/Dual Continuously Tunable-Notch Behaviors in UWB Radar for Wireless Vital Signs Monitoring

A Negative Index Metamaterial to Enhance the Performance of Miniaturized UWB Antenna for Microwave Imaging Applications

The Effects of Compression on Ultra Wideband Radar Signals

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