Microwave Imager Design with 2.46 GHz Microstrip Patch Antennas

Year 2019, Volume: 9 Issue: 2, 404 - 416, 30.12.2019

Fatih Ozkan Alkurt , Muharrem Karaaslan , Emin Unal , Faruk Karadağ

https://doi.org/10.37094/adyujsci.552323

Abstract

In this study, microwave imager design is aimed by using a series of microstrip patch antennas operating in the 2.46 GHz frequency band. The designed microwave imager has a 24-sided cylindrical shape and includes 5x1 microstrip patch antennas placed at 45˚ angles. The overall working principle of the microwave imager is based on the back reflection and transmission values between the transmitter and receiver antennas. The 40 microstrip patch antennas inside the microwave imager operate as both a receiver and a transmitter and the transmission values between each other (S₂₁, S₃₁, S₄₁, S₂₁ etc.) are capable of mapping the internal space in three dimensions with the required algorithm. The microstrip antennas in the designed structure have been chosen for their small volume, easy integration, versatility, low profile, and the most commonly used 2.46 GHz frequency is used as the operation band. The most important achievement of this study is to support medical imaging practices; the detection of cancerous areas such as breast cancer can be determined by the interaction between antennas and is the aim of this study. In addition, the developed microwave imager can also be used in concrete mapping and non-destructive imaging applications in the construction sector. Besides, the designed configuration has another advantage due to its low cost.

Keywords

Microwave imaging, patch antenna, array antenna

2.46 GHz’te Mikroşerit Yama Antenlerle Mikrodalga Görüntüleyici Tasarımı

Abstract

Bu çalışmada 2.46 GHz frekans bandında çalışan mikroşerit yama antenlerin bir serisi kullanılarak mikrodalga görüntüleyici tasarımı amaçlanmıştır. Tasarlanan mikrodalga görüntüleyici 24 kenarlı silindirik şekle sahip ve 45^o açılarla yerleştirilmiş 5x1 mikro şerit yama antenler içermektedir. Mikrodalga görüntüleyicinin genel çalışma prensibi, verici ve alıcı antenleri arasındaki geri yansıma ve iletim değerlerine dayanmaktadır. Mikrodalga görüntüleyicinin içindeki 40 mikro şerit yama anteni hem alıcı hem de verici olarak çalışır ve birbirleri arasındaki iletim değerleri (S₂₁, S₃₁, S₄₁, S₂₁vb.) iç alanı gerekli algoritma ile üç boyutlu olarak haritalayabilirler. Tasarlanan yapıdaki mikro şerit antenler küçük hacimleri, kolay entegrasyonu, çok yönlülükleri, düşük profilli olmaları için seçilmiş ve en yaygın kullanılan 2.46 GHz frekansı çalışma bandı olarak kullanılmıştır. Bu çalışmanın en önemli yanı tıbbi görüntüleme uygulamalarını desteklemektir; meme kanseri gibi kanser vakalarında kanserli alanların tespiti antenler arasındaki etkileşimle belirlenebilir ve bu çalışmanın amacıdır. Ayrıca, geliştirilen mikrodalga görüntüleme cihazı inşaat sektöründe beton haritalama ve tahribatsız görüntüleme uygulamalarında da kullanılabilir. Bunlardan başka, tasarlanan konfigürasyonun düşük maliyetli olması başka bir avantajıdır.

Keywords

Mikrodalga görüntüleme, Yama anteni, Dizi anten

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