Design of Wideband Rf Energy Harvesting Circuit with Lumped Elements Working Efficiently in 1.5 GHz – 3.1 GHz Band

Öz

With the use of wireless communication technologies, the presence of electromagnetic waves at different frequencies in the ambient is increasing. In this study, a wideband rectifier circuit that can harvest GSM 1800 (MTX), GSM 1800 (BTX), 3G (MTX), 3G (BTX), ISM 1400, Wi-Fi 1450, LTE 2600 bands and operates at low input powers was designed in ADS program using lumped elements. In the 1.5 GHz – 3.1 GHz range, the designed circuit provided a reflection loss below -10 dB, which can be considered the threshold value. While the output voltage is 0.70±0.02 V at 0 dBm input power and 1kΩ load at frequencies across the entire 1.5 GHz – 2.7 GHz range, the rectification efficiency is calculated as 50±2%. The highest efficiency was obtained as 68.2% at 5 dBm input power and 2 kΩ loads, while the output voltage was 2.02 V.

Anahtar Kelimeler

• RF energy harvesting
• Lumped elements
• Impedance matching
• broadband
• HSMS 2852

1.5 GHz – 3.1 GHz Arası Bantlarda Verimli Çalışan Geniş Bant RF Enerji Hasatlama Devresinin Toplu Elemanlarla Tasarımı

Öz

Kablosuz iletişim teknolojilerinin kullanımı ile birlikte ortamda farklı frekanslarda elektromanyetik dalgaların varlığı gittikçe artmaktadır. Bu çalışmada ortamda bulunan GSM 1800 (MTX), GSM 1800 (BTX), 3G (MTX), 3G (BTX), ISM 1400, Wi-Fi 1450, LTE 2600 bantlarını hasatlayabilen ve düşük giriş güçlerinde çalışan geniş bant doğrultucu devre toplu elemanlar kullanılarak ADS programında tasarlanmıştır. Tasarlanan devre 1.5 GHz – 3.1 GHz aralığında eşik değer sayılabilecek -10 dB altında yansıma kaybı sağlamıştır. 1.5 GHz – 2.7 GHz aralığının tamamındaki frekanslarda 0 dBm giriş gücünde ve 1 kΩ yükte çıkış gerilimi 0.70±0.02 V olarak elde edilirken doğrultma verimi %50±2 olarak hesaplanmıştır. En yüksek verim ise 5 dBm giriş gücünde ve 2 kΩ yükte çıkış gerilimi 2.02 V iken %68.2 olarak elde edilmiştir.

Anahtar Kelimeler

• RF enerji hasatlama
• toplu eleman
• empedans eşleştirme
• geniş bant
• HSMS2852

Kaynakça

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