Functional Pressure and Density Sensor Design Based on Metamaterial Absorber

Öz

In this study, metamaterial absorber based functional sensors were designed. After the design, air was integrated to the structure and integrated pressure sensor was designed. Similarly, arlon materials with different dielectric constants were integrated to the MTM structure. With the integrated structures created, density sensor designs were obtained. It was observed from the calculations that the proposed MTM absorber has a perfect absorbance value at a frequency of 5,2 GHz wireless communication frequency. With the integration of air layer, shifts at resonance frequency was occurred. This shows that the proposed structure can be used as a pressure sensor. Similarly, with the integration of different arlon materials, shifts at resonance frequencies were observed inversely proportional to density. These shifts show that the structure proposed secondarily can be used as a density sensor. It was observed that the MTM structures proposed can be used for the applications of pressure and density sensors.

Anahtar Kelimeler

• Metamaterials,Absorber,Pressure sensor,Density sensor

Sinyal Emici Metamalzeme Tabanlı Fonksiyonel Basınç ve Yoğunluk Sensörü Tasarımı

Öz

Bu çalışmada sinyal emici metamalzeme tabanlı fonksiyonel sensör tasarımı yapılmıştır. MTM yapı tasarlandıktan sonra, yapıya farklı kalınlıklarda hava entegre edilmiştir. Bu sayede entegre basınç sensör tasarımı oluşturulmuştur. Daha sonra benzer şekilde MTM yapıya farklı dielektrik sabitine sahip arlon yapılar entegre edilmiştir. Oluşturulan bu entegre yapı ile yoğunluk sensör tasarımı elde edilmiştir. Yapılan hesaplamalarda önerilen sinyal emici MTM 5,2 GHz kablosuz iletişim frekansında mükemmel emilime sahip olduğu görülmüştür. Bu yapıya hava katmanı eklendiğinde, rezonans frekansında kaymalar meydana gelmiştir. Bu önerilen yapının basınç sensörü olarak kullanabileceğini göstermektedir. Benzer şekilde farklı arlon malzemeler eklendiği zaman ise yoğunluk ile ters orantılı olarak rezonans frekansında yine kaymanlar oluşmuştur. Frekansta meydana gelen bu kaymalar önerilen ikinci yapının yoğunluk sensörü olarak kullanabileceğini göstermektedir. Böylece önerilen MTM yapının basınç ve yoğunluk sensörünün gerekli olduğu bir çok uygulamada kullanılabileceği gözlenmiştir.

Anahtar Kelimeler

• Metamalzemeler,Sinyal emilimi,Basınç sensörü,Yoğunluk sensörü

Kaynakça

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