TY - CHAP
T1 - Beamforming Array Failure Correction for mm-Wave Synthetic Aperture Radar Applications
AU - Munsif, Hina
AU - Saleem, Raja Aasim Bin
AU - Shah, Arslan Ali
AU - Khattak, Shahid
AU - Najam, Ali Imran
AU - Braaten, Benjamin D.
AU - Irfanullah,
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
PY - 2024/7/24
Y1 - 2024/7/24
N2 - Millimeter-wave (mm-wave) beamforming arrays are advanced antennas, operating within the frequency range of 30–300 GHz. They have several applications, including unmanned aerial vehicle (UAV) communication, 5G technology, multiple input multiple output (MIMO) applications, and synthetic aperture radar (SAR). The rise of mm-wave technology has gained importance in SARs functioning as “two-way” communications, with radar signals traveling from transmitter to target and back to the receiver. This causes the received power to follow an inverse distance R4 relation, unlike the traditional “one-way” (R2) communications which employs cosecant power pattern. Since, the cosecant power pattern offers difficulties in achieving high-resolution imaging and sensitivity in mm-wave SAR systems, therefore a unique cosecant 4th power pattern is introduced, enabling precise energy focus on predefined directions. CMOS-equipped transmit/receive modules (TRMs) in mm-wave SAR may lead to antenna element failures, resultantly affecting the sidelobe levels, beamwidth, and gain in cosecant 4th power pattern. This research uses a genetic algorithm (GA) to correct element failures in a 6 × 12 array, aiming to recover the desired pattern with 8.33–25% failure of edge antenna elements. GA optimizes complex weights to align with the cosecant 4th power pattern, ensuring efficient performance in mm-wave SAR applications.
AB - Millimeter-wave (mm-wave) beamforming arrays are advanced antennas, operating within the frequency range of 30–300 GHz. They have several applications, including unmanned aerial vehicle (UAV) communication, 5G technology, multiple input multiple output (MIMO) applications, and synthetic aperture radar (SAR). The rise of mm-wave technology has gained importance in SARs functioning as “two-way” communications, with radar signals traveling from transmitter to target and back to the receiver. This causes the received power to follow an inverse distance R4 relation, unlike the traditional “one-way” (R2) communications which employs cosecant power pattern. Since, the cosecant power pattern offers difficulties in achieving high-resolution imaging and sensitivity in mm-wave SAR systems, therefore a unique cosecant 4th power pattern is introduced, enabling precise energy focus on predefined directions. CMOS-equipped transmit/receive modules (TRMs) in mm-wave SAR may lead to antenna element failures, resultantly affecting the sidelobe levels, beamwidth, and gain in cosecant 4th power pattern. This research uses a genetic algorithm (GA) to correct element failures in a 6 × 12 array, aiming to recover the desired pattern with 8.33–25% failure of edge antenna elements. GA optimizes complex weights to align with the cosecant 4th power pattern, ensuring efficient performance in mm-wave SAR applications.
KW - CMOS
KW - mm-Wave
KW - Optimization
KW - Radiation pattern
KW - Synthetic aperture radar
UR - https://www.scopus.com/pages/publications/85201395176
UR - https://www.scopus.com/pages/publications/85201395176#tab=citedBy
U2 - 10.1007/978-3-031-56144-3_7
DO - 10.1007/978-3-031-56144-3_7
M3 - Chapter
AN - SCOPUS:85201395176
SN - 978-3-031-56143-6
SN - 978-3-031-56146-7
T3 - Signals and Communication Technology
SP - 105
EP - 129
BT - Signals and Communication Technology
A2 - El Ghzaoui, Mohammed
A2 - Das, Sudipta
A2 - Samudrala, Varakumari
A2 - Rao Medikondu, Nageswara
PB - Springer Science and Business Media Deutschland GmbH
CY - Cham
ER -