TY - GEN
T1 - 28GHz-Band 2x2 Patch Antenna Module Vertically Integrated with a Compact 2-D BFN in Broadside Coupled Stripline Structure
AU - Temga, Jean
AU - Machii, Taiki
AU - Shiba, Takashi
AU - Suematsu, Noriharu
N1 - Funding Information:
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:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - This paper presents a miniaturized 28GHz-band 2-D Beamforming Network (BFN) design, implementation, and vertical integration with a 2x2 patch array antenna for mmWave communications. The antenna module is realized in a thin 5-layers Panasonic Megtron6 substrate. The substrate is composed of upper layers (4-5) for the antenna design and lower layers (1-4) which form the broadside coupled stripline structure used to design the 2-D BFN isolated from the array antenna. The broadside coupled stripline has the characteristic of tight coupling and low attenuation which allow the design of a compact and wideband 3dB/90° broadside stripline coupler. The proposed 2-D BFN consists of four 3dB/90° broadside stripline couplers interconnected by very short striplines and arranged to form a compact, planar and square topology BFN. The actual area of the 2-D BFN is only 0.3λ0×0.3λ0×0.08λ0 which is easily integrated under the 2x2 array antenna area (0.9λ0×0.8λ0×0.08λ0) realizing a miniaturized module structure. The element separation is set to 0.6λ0. A prototype of the 2-D BFN and the antenna module have been fabricated and measured, showing the validity of the simulation results.
AB - This paper presents a miniaturized 28GHz-band 2-D Beamforming Network (BFN) design, implementation, and vertical integration with a 2x2 patch array antenna for mmWave communications. The antenna module is realized in a thin 5-layers Panasonic Megtron6 substrate. The substrate is composed of upper layers (4-5) for the antenna design and lower layers (1-4) which form the broadside coupled stripline structure used to design the 2-D BFN isolated from the array antenna. The broadside coupled stripline has the characteristic of tight coupling and low attenuation which allow the design of a compact and wideband 3dB/90° broadside stripline coupler. The proposed 2-D BFN consists of four 3dB/90° broadside stripline couplers interconnected by very short striplines and arranged to form a compact, planar and square topology BFN. The actual area of the 2-D BFN is only 0.3λ0×0.3λ0×0.08λ0 which is easily integrated under the 2x2 array antenna area (0.9λ0×0.8λ0×0.08λ0) realizing a miniaturized module structure. The element separation is set to 0.6λ0. A prototype of the 2-D BFN and the antenna module have been fabricated and measured, showing the validity of the simulation results.
KW - 2-D BFN
KW - 2x2 antenna array
KW - Beam steering
KW - Broadside coupled stripline structure
KW - MmWave band
KW - Probe feeding
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U2 - 10.1109/APMC52720.2021.9661968
DO - 10.1109/APMC52720.2021.9661968
M3 - Conference contribution
AN - SCOPUS:85124407060
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 73
EP - 75
BT - 2021 IEEE Asia-Pacific Microwave Conference, APMC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE Asia-Pacific Microwave Conference, APMC 2021
Y2 - 28 November 2021 through 1 December 2021
ER -