TY - GEN
T1 - Sidelobe Level Suppression and Scan-Loss Compensation in A Wide-Angular Scanning Linear Array Using Subarrays Amplitude Control
AU - Akbar, Fannush S.
AU - Ligthart, Leo
AU - Hendrantoro, Gamantyo
AU - Lager, Ioan E.
N1 - Publisher Copyright:
© 2021 EuMA.
PY - 2021/1/12
Y1 - 2021/1/12
N2 - An improvement of the wide-angular scan-loss compensation (SLC) and sidelobe level (SLL) in a small linear array with 23 elements is discussed. The array integrates small subarrays with an optimized pattern for SLC, while the SLL suppression is obtained by using a combination of elements with phase steering only and elements with amplitude/phase control in the center. This combination leads to a less number of T/R module. When the antenna is scanned to ±60°, a maximum first and peak SLL (FSLL and PSLL) of -15.1 dB are obtained. In addition, a -4.6 scan-loss is obtained, it means that the SLC is 2.4 dB with a Cavity-backed U-slotted Patch (CUP) antenna. These performance results are very attractive in particular for a small linear array with wide angular scanning capability.
AB - An improvement of the wide-angular scan-loss compensation (SLC) and sidelobe level (SLL) in a small linear array with 23 elements is discussed. The array integrates small subarrays with an optimized pattern for SLC, while the SLL suppression is obtained by using a combination of elements with phase steering only and elements with amplitude/phase control in the center. This combination leads to a less number of T/R module. When the antenna is scanned to ±60°, a maximum first and peak SLL (FSLL and PSLL) of -15.1 dB are obtained. In addition, a -4.6 scan-loss is obtained, it means that the SLC is 2.4 dB with a Cavity-backed U-slotted Patch (CUP) antenna. These performance results are very attractive in particular for a small linear array with wide angular scanning capability.
KW - matching amplitude
KW - scan-loss compensation
KW - sidelobe suppression
KW - subarray
UR - http://www.scopus.com/inward/record.url?scp=85100950391&partnerID=8YFLogxK
U2 - 10.23919/EuMC48046.2021.9337939
DO - 10.23919/EuMC48046.2021.9337939
M3 - Conference contribution
AN - SCOPUS:85100950391
T3 - 2020 50th European Microwave Conference, EuMC 2020
SP - 352
EP - 355
BT - 2020 50th European Microwave Conference, EuMC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 50th European Microwave Conference, EuMC 2020
Y2 - 12 January 2021 through 14 January 2021
ER -