A 33-101 GHz Ultra-Wideband Tightly Coupled Monopole Array (TCMA)
Conference
Hamza, M, Zekios, CL, Georgakopoulos, SV. (2023). A 33-101 GHz Ultra-Wideband Tightly Coupled Monopole Array (TCMA)
. 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2023-July 515-516. 10.1109/USNC-URSI52151.2023.10237697
Hamza, M, Zekios, CL, Georgakopoulos, SV. (2023). A 33-101 GHz Ultra-Wideband Tightly Coupled Monopole Array (TCMA)
. 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2023-July 515-516. 10.1109/USNC-URSI52151.2023.10237697
A new ultra-wideband tightly coupled monopole array (TCMA) is introduced. Namely, the unit-cell of our TCMA consists of a modified monopole element, which is capacitively coupled to two grounded vias. Notably, both the common-mode and loop-mode resonances are pushed out of the operating frequency band of our array, while the well-known broadside null found in the radiation pattern of traditional monopole antennas is entirely eliminated. In addition, to improve the scanning bandwidth of our array, a dielectric superstrate is accordingly utilized. The proposed antenna array is extremely low profile with a maximum thickness of 0.4λ H. Infinite array simulations of our antenna array demonstrate a bandwidth of 3:1 (33 GHz to 101 GHz) with VSWR<3 for a maximum scan-angle of ± 45° for all principal E-, H- and D-planes.
