Title :
A method for input impendence matching of PIFA based on meander line antenna
Author :
Kuan Wei Chen ; Chin Lung Yang
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
Meander line antenna (MLA) is designed for biomedical band antenna because their low profile and relative high efficiency. This work present a new methods of impedance matching on meander line antenna. In this design has proposed a Planar Inverted-F Antenna (PIFA) short pin structure design, based on a meander line shaped on 433 MHz which is ISM band. According to this method, the resonant characteristics of MLA are related to their physical dimension such as meander height, width number of folds, their positions and overall length of the structure. The antenna has been test with the Vector Network Analyzer and the resonance frequency is measured at 431 MHz, with a meander of 5.5 turns and matching meander 7.5 turns. The best return loss for the antenna is 28dB (measured) with a gain of -3.3 dBi.
Keywords :
UHF antennas; biomedical equipment; impedance matching; planar inverted-F antennas; ISM band; MLA; PIFA; biomedical band antenna; frequency 433 MHz; gain 28 dB; input impedance matching; meander line antenna; planar inverted-F antenna short pin structure design; resonance frequency; return loss; vector network analyzer; Antenna measurements; Frequency measurement; Loss measurement; Radiofrequency identification; Resonant frequency; UHF antennas; ISM band; Meander line antenna; UHF RFID; planar inverted-F antenna;
Conference_Titel :
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location :
Kaohsiung
DOI :
10.1109/ISANP.2014.7026788
