RF Enerji Hasatlama Uygulamaları için Üç Bantlı Anten ve Doğrultucu Tasarımı

Yıl 2023, Cilt: 15 Sayı: 2, 794 - 803, 14.07.2023

Muhammet Emin İnce , Çetin Kurnaz , Ertuğrul Çam

https://doi.org/10.29137/umagd.1314713

Öz

Çok bantlı RF enerji hasadı, aynı anda birden fazla radyo frekansı (RF) bandından enerji hasadını içeren bir tekniktir. Bu yaklaşım, daha yüksek enerji hasadı verimliliğine ve daha geniş bir RF kaynağından enerji yakalama yeteneğine sahiptir. Bu çalışmada GSM900, GSM1800 ve UMTS2100 hücresel sistem frekanslarında enerji hasatlama için kullanılmak üzere anten ve doğrultucu tasarımı yapılmıştır. Tasarlanan anten 0,94, 1,8 ve 2,15 GHz orta frekanslarında çalışmakta olup bu frekanslarındaki geri dönüş kayıpları sırasıyla -18 dB, -27 dB ve -31dB’dir. Tasarlanan antenin bu frekanslardaki kazançları ise yine sırasıyla 3,74 dBi, 2,3 dBi ve 1,76 dBi’dır. Antenin 0,94 GHz’deki en yüksek verimi %78 iken, 1,8 GHz ve 2.15 GHz’deki en yüksek verim değerleri sırasıyla %79 ve %75’tir. Anten tasarımından sonra GSM900, GSM1800 ve UMTS2100 frekanslarındaki tüm sinyal güçlerini toplamak için T tipi eşleme kullanılarak bir doğrultucu tasarımı yapılmıştır. Gerilim doğrultucu çıkışında maksimum 5.6 V değeri 3 dBm giriş gücünde elde edilmiştir.

Anahtar Kelimeler

RF enerji hasatlama, Üç bantlı mikroşerit anten, Doğrultucu, CST, ADS

Tri-Band Antenna and Rectifier Design for RF Energy Harvesting Applications

Öz

Tri-band RF energy harvesting is a technique that involves harvesting energy from multiple radio frequency (RF) bands simultaneously. This approach offers higher energy harvesting efficiency and the ability to capture energy from a broader range of RF sources. In this study, antenna, and rectifier design were carried out for energy harvesting in the GSM900, GSM1800, and UMTS2100 cellular system frequencies. The designed antenna operates at frequencies of 0.94 GHz, 1.8 GHz, and 2.15 GHz, with return losses of -18 dB, -27 dB, and -31 dB, respectively. The gains of the designed antenna at these frequencies are 3.74 dBi, 2.3 dBi, and 1.76 dBi, respectively. The antenna achieves the highest efficiency of 78% at 0.94 GHz, while the highest efficiency values at 1.8 GHz and 2.15 GHz are 79% and 75%, respectively. Following the antenna design, a rectifier was designed using T-type matching to combine the power from the GSM900, GSM1800, and UMTS2100 frequencies. A maximum output voltage of 5.6 V was obtained at a 3 dBm input power level.

Anahtar Kelimeler

RF energy harvesting, Tri-band microstrip antenna, Rectifier, CST, ADS

Kaynakça

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