Development of a Compact Wide-Slot Antenna for Early Stage Breast Cancer Detection Featuring Circular Array Full-View Geometry

Abstract

A novel planar type antenna printed on a high permittivity Rogers’ substrate is proposed for early stage microwave breast cancer detection. The design is based on a p-shaped wide-slot structure with50 Ωmicrostrip feeding circuit to eliminate losses of transmission. The design parameters are optimized resulting in a good reflection coefficient at −10 dB from 4.5 to 10.9 GHz. Imaging result using inhomogeneous breast phantom indicates that the proposed antenna is capable of detecting a 5 mm size cancerous tumor embedded inside the fibroglandular region with dielectric contrast between the target and the surrounding materials ranging from 1.7 : 1 to 3.6 : 1.

Breast Tumor Detection System Based on a Compact Uwb Antenna Design

“…10. The tumor is placed at (5,62,40) for both sizes. It is observed that when the mass of the breast increases, the maximum SAR value decreases for all frequencies.…”

“…However at the same frequency, the maximum SAR value for 60 mm is 3.86 W/kg. The coordinates of the maximum value of SAR are summarized in Table 4 at frequencies from 3 GHz to 10 GHz, for different sizes of tumors 4 mm, 5 mm and 6 mm, placed inside a 50 mm breast at (5,62,40). Simulation results demonstrate that the tumor size is a potential parameter for influencing the distribution of the max SAR values.…”

“…The principle that microwave imaging relies upon is the dielectric contrast between normal and cancerous human tissues [4]. The majority of the compact UWB antennas presented in the literature exhibit a large size with relatively low gain [5,6], which is suitable for specific communications. In this paper, we present a new design of compact UWB antenna for breast tumor detection system.…”

“…In this paper, we present a new design of compact UWB antenna for breast tumor detection system. The rectangular ring shaped UWB antenna for breast imaging developed in this paper has a planar type design with a high gain, compact size and relatively omnidirectional radiation patterns suitable for being placed directly on the target [5]. The antenna parameters such as return loss, gain, radiation pattern and current distribution are discussed in detail.…”

Ultra-Wideband Diversity MIMO Antenna System for Future Mobile Handsets

“…In the proposed MIMO smartphone antenna array, the fidelity factor is the highest between the closely-spaced diversity antenna pairs with the side-by-side orientation, averaging 0.90. It should be noted that the fidelity factor can be decreased as the distance increases and vice versa [57]. Accordingly, for other possible arrangements of the antenna pairs with longer distances, the fidelity factor drops to 0.70 in most cases.…”