TY - GEN
T1 - A 5.5GHz-Band 2x2 Array Antennas Module Based on Compact 2-D Beamforming Network in Broadside Coupled Stripline
AU - Temga, Jean
AU - Motoyoshi, Mizuki
AU - Shiba, Takashi
AU - Suematsu, Noriharu
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported by Japan Society of Promotion and Science (JSPS). This work includes also results of the project entitled “R&D on Adaptive Media Access Control for Increasing the Capacity of Wireless IoT Devices in Factory Sites,” which is supported by the Ministry of Internal Affairs and Communications as part of the research Program “R&D for Expansion of Radio Wave Resources (JPJ000254)”
Publisher Copyright:
© 2022 European Association for Antennas and Propagation.
PY - 2022
Y1 - 2022
N2 - This paper proposes a 2mathrm{x}2 array fed by a compact 2-D beamforming network (BFN) in a 5 metals-layer Rogers substrate. The BFN is composed of four interconnected 3mathbf{dB}/90{circ} strip line couplers designed in the broadside coupled stripline structure in the lower (1-4) layers allowing an easy and compact design. The 2mathrm{x}2 patch antenna array designed in the upper (5) layer is connected to the BFN by probes vias generating four beams with unique directions on azimuth and elevation planes. The array inter-element distance is 0. 5lambda_{0}. To validate the performance of the proposed structure, a prototype of a 2mathrm{x}2 patch array has been fabricated and measured. Simulated and measured four beams have been realized. An 8.85dBi highest simulated gain and a 5.97 dBi highest measured gain are realized respectively in (theta=26{circ}, Phi=55{circ}) and (theta=30{circ}, Phi=55{circ} directions when port 1 is excited. The size of the 2mathrm{x}2 array without feeding TML is 0.76 lambda_{0}times 0.81lambda_{0}times 0.04lambda_{0}.
AB - This paper proposes a 2mathrm{x}2 array fed by a compact 2-D beamforming network (BFN) in a 5 metals-layer Rogers substrate. The BFN is composed of four interconnected 3mathbf{dB}/90{circ} strip line couplers designed in the broadside coupled stripline structure in the lower (1-4) layers allowing an easy and compact design. The 2mathrm{x}2 patch antenna array designed in the upper (5) layer is connected to the BFN by probes vias generating four beams with unique directions on azimuth and elevation planes. The array inter-element distance is 0. 5lambda_{0}. To validate the performance of the proposed structure, a prototype of a 2mathrm{x}2 patch array has been fabricated and measured. Simulated and measured four beams have been realized. An 8.85dBi highest simulated gain and a 5.97 dBi highest measured gain are realized respectively in (theta=26{circ}, Phi=55{circ}) and (theta=30{circ}, Phi=55{circ} directions when port 1 is excited. The size of the 2mathrm{x}2 array without feeding TML is 0.76 lambda_{0}times 0.81lambda_{0}times 0.04lambda_{0}.
KW - Broadside coupled striplines
KW - Butler Matrix
KW - multilayer PCB technology
KW - phased array
KW - probe feeding
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M3 - Conference contribution
AN - SCOPUS:85130616567
T3 - 2022 16th European Conference on Antennas and Propagation, EuCAP 2022
BT - 2022 16th European Conference on Antennas and Propagation, EuCAP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th European Conference on Antennas and Propagation, EuCAP 2022
Y2 - 27 March 2022 through 1 April 2022
ER -