Metamaterial-Loaded 16-Printed Log Periodic Antenna Array for Microwave Imaging of Breast Tumor Detection

Table 1

Comparison of the proposed imaging system with other existing systems in the literature.

Ref

Antennas

Sizes (mm^3)

Frequencies (GHz)

Gains (dBi)

Substrate

The no. of elements

Arrangements

Imaging methods

[34]

Stacked aperture coupled antenna

37 × 43 × 4.85

4.9–10.9

6.0

FR4

3

Annular

DAS

[35]

Vivaldi

63 × 51 × 1

2.5–8.5

8.5

FR4

2

Side by side

—

[36]

Lens-loaded Vivaldi

110.3 × 100 × 1.6

1–14

—

FR4

1

17 (rows) × 28 (columns) sampling locations

Inverse scattering approach

[37]

Unidirectional UWB antenna

118 × 76 × 40

2–6.5

—

FR4

2

24 × 16

DMAS

Scanned positions

[18]

Balanced slotted antipodal Vivaldi

40 × 40 × 1.6

3.01–11

7.1

FR4

2

Face-to-face

DMAS

[38]

Balanced antipodal Vivaldi antenna

—

1–13

—

—

1

36 positions

TSAR (tissue sensing adaptive radar)

[39]

Side-slotted Vivaldi antenna

51 × 42 × 1.57

2.8–7

7

Rogers RT/duroid 5870

9

Circular

Iteratively corrected-DAS

[40]

Planar slot UWB

11 × 13.1 × 0.635

3.1–10.6

—

RT/duroid 6010

16

4 × 4 crossed shaped

Confocal imaging

[41]

Vivaldi antenna

40 × 40 × 1.6

2.5–11

7.2

FR4

16

8 vertically

DAS

8 horizontally

Proposed

MTM-loaded PLPA

50 × 40 × 1.6

2–5

5.5

FR4

16

Circular

DMAS