Title :
A very low profile CP EBG antenna for RFID reader
Author :
Raumonen, Pasi ; Keskilammi, Mikko ; Sydänheimo, Lauri ; Kivikoski, Markku
Author_Institution :
Tampere Univ. of Technol., Rauma, Finland
Abstract :
A compact and very low profile spiral curl antenna design is proposed. Using a small EBG ground plane, good circular polarization can be achieved with overall height less than 2.5% of wavelength. The drawback of this miniaturization is that the axial ratio bandwidth, the input match bandwidth and the gain are reduced. The structure is analysed using finite element method (FEM).
Keywords :
electromagnetic wave polarisation; finite element analysis; mobile antennas; photonic band gap; spiral antennas; wire antennas; EBG ground plane; FEM; RFID reader; antenna gain; axial ratio bandwidth; circular polarization; electromagnetic band gap structure; finite element method; input match bandwidth; low profile antenna; radio frequency identification; spiral antenna; spiral curl antenna; wire antenna structure; Antenna feeds; Bandwidth; Dielectric substrates; Handheld computers; Impedance matching; Polarization; Radiofrequency identification; Spirals; Surface impedance; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330178
