Patolojik Doku Örneklerinde Mikroşerit Anten Yapısında S-Parametrelerine Ait Normalizasyon Değerlerinin İncelenmesi

Öz

Patolojik doku örneklerinin antenlerle incelenmelerine ait çalışmalar geliştirilmeye başlanmıştır. Bu çalışmada kazancı artırılmış bir mikroşerit anten yapısı kullanılarak gerçekleştirilen normalizasyon çalışmaları sunulmaktadır. Normalizasyon çalışmalarında kullanılan anten yapısında 4.4 dielektrik sabiti değerine sahip FR-4 taban tercih edilmiştir. Patolojik doku örneklerinde normal ve kanserli deri dokusuna ait numuneler HFSS’de modellenerek simülasyonları yapılmıştır. Yapılan simülasyonlar sonucunda normalize edilen S-parametrelerindeki farklılıklar tablolar ile gösterilmiştir. S11 değerindeki normal deri dokusu normalizasyon değeri 13.4 iken, tümörlü deri dokusu örneğine ait değer 18.0 olarak bulunmuştur. Diğer S-parametreleri için de normal ve kanserli deri dokusu için farklı değerler elde edilmiştir. Değerlerdeki farklılıklar tasarlanan anten yapısının başarısını ortaya koyaktadır.

Anahtar Kelimeler

• Patoloji
• Mikroşerit
• Yama
• Normalizasyon
• HFSS.

Investigation of Normalization Values of S-Parameters in Microstrip Antenna Structure in Pathological Tissue Samples

Abstract

Studies on the examination of pathological tissue samples with antennas have begun to be developed. In this study, normalization studies performed using a microstrip antenna structure with increased gain are presented. FR-4 substrate with a dielectric constant of 4.4 is preferred in the antenna structure used in the normalization studies. In pathological tissue samples, samples of normal and cancerous skin tissue are modeled in HFSS and simulated. The differences in the normalized S-parameters as a result of the simulations are shown in the tables. While the normal skin tissue normalization value at S11 is 13.4, the value for the tumor skin tissue sample is 18.0. For other S-parameters, different values are obtained for normal and cancerous skin tissue. The differences in the values reveal the success of the proposed antenna structure.

Keywords

• Pathology
• Microstrip
• Patch
• Normalization
• HFSS.

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