TY - GEN
T1 - Fabrication and Characterization of a 900-Element 222.5 GHz Single-bit Reflective Surface with Suppressed Quantization Lobes
AU - Kashyap, Bharath G.
AU - Theofanopoulos, Panagiotis C.
AU - Cui, Yiran
AU - Trichopoulos, Georgios C.
N1 - Publisher Copyright:
© 2021 The authors; USNC-URSI and IEEE will have full rights to publish, market, put on Xplore, etc.
PY - 2021/1/4
Y1 - 2021/1/4
N2 - We present a topology for suppressing quantization lobes in 1-bit reconfigurable reflective surfaces (RRSs). RRSs are planar surfaces that redirect the imping waves to the desired direction through phase modulation. For single-bit modulation, plane-wave illuminated RRSs exhibit quantization lobes due to the limited number of available phase bits. To eliminate such lobes, we randomize the quantization error by employing a fixed but random phase delay in every unit-cell of the RRS. Specifically, we focus on the fabrication and characterization of a mmWave single-layer, 1-bit, 30×30 randomized RRS designed at 222.5 GHz. The quasi-optical RCS characterization of the fabricated RRS demonstrates the successful suppression of the quantization lobe using the proposed technique.
AB - We present a topology for suppressing quantization lobes in 1-bit reconfigurable reflective surfaces (RRSs). RRSs are planar surfaces that redirect the imping waves to the desired direction through phase modulation. For single-bit modulation, plane-wave illuminated RRSs exhibit quantization lobes due to the limited number of available phase bits. To eliminate such lobes, we randomize the quantization error by employing a fixed but random phase delay in every unit-cell of the RRS. Specifically, we focus on the fabrication and characterization of a mmWave single-layer, 1-bit, 30×30 randomized RRS designed at 222.5 GHz. The quasi-optical RCS characterization of the fabricated RRS demonstrates the successful suppression of the quantization lobe using the proposed technique.
UR - http://www.scopus.com/inward/record.url?scp=85100945602&partnerID=8YFLogxK
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U2 - 10.23919/USNC-URSINRSM51531.2021.9336511
DO - 10.23919/USNC-URSINRSM51531.2021.9336511
M3 - Conference contribution
AN - SCOPUS:85100945602
T3 - 2021 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2021 - Proceedings
SP - 153
EP - 154
BT - 2021 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2021
Y2 - 4 January 2021 through 9 January 2021
ER -