TY - GEN
T1 - Lens-enhanced phased array antenna system for high directivity beam-steering
AU - Abbaspour-Tamijani, Abbas
AU - Zhang, Lisha
AU - Pan, George
AU - Pan, Helen K.
AU - Alavi, Hossein
PY - 2011/11/1
Y1 - 2011/11/1
N2 - This paper investigates a hybrid steerable antenna topology composed of a small phased array and a significantly larger planar lens-array. The phased array antenna creates an electronically steerable beam, and the lens-array further confines the beam to enhance its directivity. The feasibility of this approach is examined via a 60 GHz design example based on a 4 4 phased array and a 24 24 lens-array. It is observed that adding the lens-array improves the directivity by 2.5-6 dB for beams within 45 of the boresight direction. Since the lens consumes no power and it may be manufactured inexpensively, this improvement comes at very little cost. The overall depth of the system in this example is 1 cm, which is quite small compared to typical lens-based systems. These characteristics make the proposed topology suitable for applications in laptop computers, tablets PC's, PDAs, flat screen TVs and similar products.
AB - This paper investigates a hybrid steerable antenna topology composed of a small phased array and a significantly larger planar lens-array. The phased array antenna creates an electronically steerable beam, and the lens-array further confines the beam to enhance its directivity. The feasibility of this approach is examined via a 60 GHz design example based on a 4 4 phased array and a 24 24 lens-array. It is observed that adding the lens-array improves the directivity by 2.5-6 dB for beams within 45 of the boresight direction. Since the lens consumes no power and it may be manufactured inexpensively, this improvement comes at very little cost. The overall depth of the system in this example is 1 cm, which is quite small compared to typical lens-based systems. These characteristics make the proposed topology suitable for applications in laptop computers, tablets PC's, PDAs, flat screen TVs and similar products.
KW - beam-steering
KW - lens antenna
KW - lens-array
KW - millimeter-wave antennas
KW - phased array
UR - http://www.scopus.com/inward/record.url?scp=80054981120&partnerID=8YFLogxK
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U2 - 10.1109/APS.2011.5997234
DO - 10.1109/APS.2011.5997234
M3 - Conference contribution
AN - SCOPUS:80054981120
SN - 9781424495634
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 3275
EP - 3278
BT - 2011 IEEE International Symposium on Antennas and Propagation - Proceedings
T2 - 2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
Y2 - 3 July 2011 through 8 July 2011
ER -