TY - GEN
T1 - Mode and Efficiency Analysis of T-Shaped Monopole Antenna in Foldable Smartphones
AU - Fan, Yiming
AU - Dong, Rongrong
AU - Jin, Xuguang
AU - Deng, Changjiang
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - The T-shaped monopole antennas in foldable smartphones are explored, focusing on their modes and efficiency performance in folded and unfolded states. The antenna structure is built on the metal frame. Two primary operating modes, namely the common mode (CM) and differential mode (DM), are investigated. The DM is excited and tuned to cover the B28, B5, and B8 frequency bands. Significant improvement in the radiation efficiency of the T-shaped antenna is observed in the unfolded state, due to reduced ground reflections and minimal interference from the secondary frame. The findings offer valuable insights for optimizing antenna design in foldable smartphones.
AB - The T-shaped monopole antennas in foldable smartphones are explored, focusing on their modes and efficiency performance in folded and unfolded states. The antenna structure is built on the metal frame. Two primary operating modes, namely the common mode (CM) and differential mode (DM), are investigated. The DM is excited and tuned to cover the B28, B5, and B8 frequency bands. Significant improvement in the radiation efficiency of the T-shaped antenna is observed in the unfolded state, due to reduced ground reflections and minimal interference from the secondary frame. The findings offer valuable insights for optimizing antenna design in foldable smartphones.
KW - common mode (CM)
KW - differential mode (DM)
KW - foldable smartphones
KW - radiation efficiency
KW - T-shaped antenna
UR - https://www.scopus.com/pages/publications/105045711085
U2 - 10.1109/ISEMC70545.2026.11589202
DO - 10.1109/ISEMC70545.2026.11589202
M3 - Conference contribution
AN - SCOPUS:105045711085
T3 - ISEMC 2026 - 9th International Symposium on Electromagnetic Compatibility, Proceedings
BT - ISEMC 2026 - 9th International Symposium on Electromagnetic Compatibility, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Symposium on Electromagnetic Compatibility, ISEMC 2026
Y2 - 24 April 2026 through 26 April 2026
ER -