배열 패치 안테나 구조를 갖는 렉테나 설계 및 구현

Abstract

In this thesis, an antenna has been proposed for the operation of mobile devices such as Zigbee. The presented rectenna operates at ISM (Industrial Scientific Medical) band of 2.45 ㎓ and consists of 2×2 array patch antenna and Villard voltage double rectifier circuit for high conversion efficiency. 2×2 array patch antenna is fabricated in FR4 substrate having thickness of 1.6 ㎜ and dielectric constant of 4.7. The proposed 2×2 array patch antenna resonates at 2.56 ㎓ with return loss of 38.36 ㏈, VSWR of 1.0244, and its impedance is matched to 50 Ω. The fabricated rectenna has maximum conversion efficiency of 59.8% at an input power lever of 15 ㏈m and load resistance of 500 Ω. Therefore, the designed rectenna operating at 2.45 ㎓ can be widely used in WLAN (Wide Area Network), Bluetooth, RFID (Radio Frequency Identification) based wireless communication system and in other wireless applications.