TY - GEN
T1 - Design of frequency invariant beamformer for broadband arrays
AU - Liu, Wei
AU - Weiss, Stephan
PY - 2007/6
Y1 - 2007/6
N2 - A simple method for the design of a class of arrays with frequency invariant beam patterns is proposed. Starting from the desired frequency invariant beam pattern of an n-D array, the proposed method uses a series of substitutions and an n-D inverse Fourier transform to obtain the desired frequency responses of the filters following each sensor. Given their desired frequency responses, these filters can be realized by either an analogue filter or a digital filter. Hence the proposed method can cover the design of broadband arrays with either analogue signals or discrete signals. Two design examples are provided, with one for a linear array and one for a planar array.
AB - A simple method for the design of a class of arrays with frequency invariant beam patterns is proposed. Starting from the desired frequency invariant beam pattern of an n-D array, the proposed method uses a series of substitutions and an n-D inverse Fourier transform to obtain the desired frequency responses of the filters following each sensor. Given their desired frequency responses, these filters can be realized by either an analogue filter or a digital filter. Hence the proposed method can cover the design of broadband arrays with either analogue signals or discrete signals. Two design examples are provided, with one for a linear array and one for a planar array.
UR - http://www.scopus.com/inward/record.url?scp=34547321290&partnerID=8YFLogxK
U2 - 10.1109/IWAT.2007.370150
DO - 10.1109/IWAT.2007.370150
M3 - Conference article published in proceeding or book
AN - SCOPUS:34547321290
SN - 1424410886
SN - 9781424410880
T3 - Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007
SP - 364
EP - 367
BT - Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology
T2 - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007
Y2 - 21 March 2007 through 23 March 2007
ER -