Ekstra Alıcı Anten Olmadan Mikrodalga Enerji Toplama

Yıl 2023, Cilt: 23 Sayı: 5, 1197 - 1205, 30.10.2023

Ahmet Yaşlı , Sadık Ülker

https://doi.org/10.35414/akufemubid.1206783

Öz

Bu makalede, farklı anten türlerinin verici anten olarak kullanıldığı, alıcı anten olarak ise voltaj
doğrultucu devrede bulanan kapasitörün ucunun anten olarak kullanıldığı, farklı radyo frekansı hasadı
durumlarını ele almaktadır. Girişte farklı antenler kullanılmış ve buna bağlı olarak iki farklı doğrultma
devresi ile dönüşüm verimleri çalışılmıştır. Antensiz log periyodik anten kaynağı için uzak alanda %27.31
RF-DC güç dönüşüm verimi değeri elde edilmiştir. Yarım dalga boyu dipol anten kaynağı için yakın alanda %50.53 RF-DC güç dönüşüm verimliliği değeri elde edilmiştir. Sarmal anten kaynağı için 5 cm mesafeye kadar yaklaşık %14,78 RF-DC güç dönüşüm verimliliği gözlenmiştir. Kaynak olarak kullanılan Yagi-Uda anteni için herhangi bir alıcı anten olmadan uzaktan elde edilen RF-DC güç dönüşüm verimi %28,89 olmuştur.

Anahtar Kelimeler

Radyo frekansı toplama;, Log periyodik anten, Doğrultucu devreler, Dönüşüm verimliliği

Microwave Energy Harvesting With No Extra Receiving Antenna

Öz

This paper addresses different cases of radio frequency harvesting using different antenna types as
transmitting antenna but using just the lead of the capacitor as the wire antenna at the receiving end
with a voltage rectifier circuit. Different antennas were used in the input and with two different
rectification circuits the conversion efficiencies were studied accordingly. For a source of log periodic
antenna, without any antenna, 27.31% RF-DC power conversion efficiency value was obtained at the
far-field. For a source of half wavelength dipole antenna, at the near-field, 50.53% RF-DC power
conversion efficiency value was obtained. For a source of helical antenna, up to 5 cm distance about
14.78% RF-DC power conversion efficiency was observed. For the Yagi-Uda antenna used as a source,
RF-DC power conversion efficiency that was obtained at the far was 28.89% without any receiving
antenna..

Anahtar Kelimeler

Radio frequency harvesting, Log periodic antenna, Rectifier circuits, Conversion efficiency

Kaynakça

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