Characterization of an Implicitly Resistively-Loaded Monopole Antenna in Lossy Liquid Media

Overview

Journal Int J Antennas Propag

Date 2010 Apr 30

PMID 20428324

Citations 8

Authors

Colleen J Fox

Paul M Meaney

Fridon Shubitidze

Lincoln Potwin

Keith D Paulsen

Affiliations

Soon will be listed here.

Abstract

Microwave tomographic imaging of the breast for cancer detection is a topic of considerable interest because of the potential to exploit the apparent high-dielectric property contrast between normal and malignant tissue. An important component in the realization of an imaging system is the antenna array to be used for signal transmission/detection. The monopole antenna has proven to be useful in our implementation because it can be easily and accurately modeled and can be positioned in close proximity to the imaging target with high-element density when configured in an imaging array. Its frequency response is broadened considerably when radiating in the liquid medium that is used to couple the signals into the breast making it suitable for broadband spectral imaging. However, at higher frequencies, the beam patterns steer further away from the desired horizontal plane and can cause unwanted multipath contributions when located in close proximity to the liquid/air interface. In this paper, we have studied the behavior of these antennas and devised strategies for their effective use at higher frequencies, especially when positioned near the surface of the coupling fluid which is used. The results show that frequencies in excess of 2 GHz can be used when the antenna centers are located as close as 2 cm from the liquid surface.

Citing Articles

Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference.

Guerrero Orozco L, Peterson L, Fhager A Sensors (Basel). 2022; 22(11).

PMID: 35684742 PMC: 9185596. DOI: 10.3390/s22114121.

Feasibility Study of Enhancing Microwave Brain Imaging Using Metamaterials.

Razzicchia E, Sotiriou I, Cano-Garcia H, Kallos E, Palikaras G, Kosmas P Sensors (Basel). 2019; 19(24).

PMID: 31842266 PMC: 6961002. DOI: 10.3390/s19245472.

Addressing Multipath Signal Corruption in Microwave Tomography and the Influence on System Design and Algorithm Development.

Meaney P, Paulsen K Open Access J Biomed Eng Biosci. 2019; 1(1).

PMID: 30828701 PMC: 6395052. DOI: 10.32474/OAJBEB.2018.01.000102.

Design and Experimental Validation of a Multiple-Frequency Microwave Tomography System Employing the DBIM-TwIST Algorithm.

Ahsan S, Guo Z, Miao Z, Sotiriou I, Koutsoupidou M, Kallos E Sensors (Basel). 2018; 18(10).

PMID: 30332843 PMC: 6209939. DOI: 10.3390/s18103491.

Electrical Characterization of Glycerin: Water Mixtures: Implications for Use as a Coupling Medium in Microwave Tomography.

Meaney P, Fox C, Geimer S, Paulsen K IEEE Trans Microw Theory Tech. 2017; 65(5):1471-1478.

PMID: 28507391 PMC: 5428894. DOI: 10.1109/TMTT.2016.2638423.

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