Subject
ย่านความถี่สูง
สายอากาศแผ่นพิมพ์แบบบ่วง
ระบบระบุลักษณะทางคลื่นวิทยุ
High Frequency (HF)
Printed Loop Antenna
Radio Frequency Identification System
ปีที่ตีพิมพ์
2558
เอกสารประกอบ
ดาวน์โหลด
จำนวนเข้าชม 1
In this paper the printed loop antenna is proposed for high frequency radio frequency identification (HF-RFID) systems (13.56 MHz). The proposed antenna is designed on the printed circuit board (PCB). The antenna structure consists of printed semi-spiral loop with rectangular structure patch at the middle of loop. It can provide the magnetic field distribution to cover the operating area with various directions that can improve the communication performance between reader and various tag orientations. From the measured results the proposed antenna has more efficient than the printed spiral loop antenna