TY - GEN
T1 - Beam-Steerable Antenna Pair Fed by a Varactor-Based Frequency-Swappable Diplexer
AU - Yuan, Yuan
AU - Chen, Shengjian Jammy
AU - Fumeaux, Christophe
PY - 2026/2/3
Y1 - 2026/2/3
N2 - A beam-steerable frequency-switchable antenna pair is demonstrated using a varactor-based frequency-swappable diplexer. The diplexer enables independent selection of two bands at its two output ports at 2.45 and 5.8 GHz and provides phase shifts of up to 87.5° at 2.45 GHz and 48.0° at 5.8 GHz, which allows beam-steering functionality. To demonstrate its performance, two Yagi-Uda antennas are excited by the diplexer, showing frequency switching and beam steering at 2.45 GHz. The antenna elements can be turned on or off, or, when used in pair, they can steer the beam from -21° to 21°. This multi-functional diplexer offers a promising solution for realizing dual-band or single-band frequency- and pattern-reconfigurable antenna systems.
AB - A beam-steerable frequency-switchable antenna pair is demonstrated using a varactor-based frequency-swappable diplexer. The diplexer enables independent selection of two bands at its two output ports at 2.45 and 5.8 GHz and provides phase shifts of up to 87.5° at 2.45 GHz and 48.0° at 5.8 GHz, which allows beam-steering functionality. To demonstrate its performance, two Yagi-Uda antennas are excited by the diplexer, showing frequency switching and beam steering at 2.45 GHz. The antenna elements can be turned on or off, or, when used in pair, they can steer the beam from -21° to 21°. This multi-functional diplexer offers a promising solution for realizing dual-band or single-band frequency- and pattern-reconfigurable antenna systems.
KW - beam-steering antennas
KW - Frequency-swappable diplexers
KW - frequency-switchable antennas
UR - https://www.scopus.com/pages/publications/105033608985
U2 - 10.23919/ISAP63122.2025.11362099
DO - 10.23919/ISAP63122.2025.11362099
M3 - Conference contribution
AN - SCOPUS:105033608985
T3 - 2025 International Symposium on Antennas and Propagation, ISAP 2025
BT - 2025 International Symposium on Antennas and Propagation, ISAP 2025
PB - Institute of Electrical and Electronics Engineers
T2 - 2025 International Symposium on Antennas and Propagation, ISAP 2025
Y2 - 27 October 2025 through 31 October 2025
ER -