TY - GEN
T1 - Impact of current localization on the performance of compact MIMO antennas
AU - Li, H.
AU - Lau, B. K.
AU - Tan, Y.
AU - He, S.
AU - Ying, Z.
PY - 2011
Y1 - 2011
N2 - In this paper, we study the influence of current localization on the isolation between two antennas in a compact terminal setting. The two antennas are chosen to be a monopole and a PIFA. The degree of current localization is controlled by the permittivity value of the PIFA's dielectric loading. Both lossless and lossy cases are simulated in order to ascertain the underlying performance impact from current localization and its potential use in real implementation. Our results show that significant isolation enhancement is achieved with more localized currents. Moreover, the technique improves the terminal's diversity and capacity performance both at the center frequency and over a given bandwidth. In addition, PIFAs with dielectric loadings of higher permittivity values and more localized currents are physically smaller. Antenna prototypes are fabricated, and the measured results agree well with the simulated results.
AB - In this paper, we study the influence of current localization on the isolation between two antennas in a compact terminal setting. The two antennas are chosen to be a monopole and a PIFA. The degree of current localization is controlled by the permittivity value of the PIFA's dielectric loading. Both lossless and lossy cases are simulated in order to ascertain the underlying performance impact from current localization and its potential use in real implementation. Our results show that significant isolation enhancement is achieved with more localized currents. Moreover, the technique improves the terminal's diversity and capacity performance both at the center frequency and over a given bandwidth. In addition, PIFAs with dielectric loadings of higher permittivity values and more localized currents are physically smaller. Antenna prototypes are fabricated, and the measured results agree well with the simulated results.
UR - http://www.scopus.com/inward/record.url?scp=79959639709&partnerID=8YFLogxK
M3 - Article in proceeding
AN - SCOPUS:79959639709
SN - 9788882020743
T3 - Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
SP - 2423
EP - 2426
BT - Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
T2 - 5th European Conference on Antennas and Propagation, EUCAP 2011
Y2 - 10 April 2011 through 15 April 2011
ER -