RF Energy harvesting circuit with half-wave signal conversion

Prikupljanje električne energije iz raznih izvora postaje sve važnije razvojem svjetskog gospodarstva. Dotakli smo se brojnih načina prikupljanja energije, no najviše prikupljanju energije elektromagnetskog zračenja koje ima sve veću primjenu u RFID sustavima. Konkretno smo projektirali poluvalni ispravljač napona. Za takvo prikupljanje nam je potrebna antena, prilagodna mreža i ispravljač napona. Važno je odabrati odgovarajuće diode koje su pogodne za rad na visokim frekvencijama i imaju nizak napon koljena te iz tog razloga odabiremo diode HSMS-2810, HSMS-2820 i HSMS-2850. Također, važno je projektirati i dobru prilagodnu mrežu kako bi postigli što veću efikasnost pretvorbe.Energy harvesting from various sources is becoming more and more important with the global economy growth. There are many different methods of energy harvesting which were described in this project. The electromagnetic harvesting is important part in RFID technology. Main task was to build half-wave rectifier which is alongside antenna and impedance matching crucial part in process of energy harvesting. Important step was picking the right diodes which have low forward voltage and are useful in high frequency systems. Therefore Schottky diodes HSMS-2810, HSMS-2820 and HSMS-2850 were selected. Also, building an appropriate impedance matching network was very important step so higher efficiency is set